All settings

environment_variables: {}

model_list:
  - model_name: string
    litellm_params: {}
    model_info:
      id: string
      mode: embedding
      input_cost_per_token: 0
      output_cost_per_token: 0
      max_tokens: 2048
      base_model: gpt-4-1106-preview
      additionalProp1: {}

litellm_settings:
  # Logging/Callback settings
  success_callback: ["langfuse"]  # list of success callbacks
  failure_callback: ["sentry"]  # list of failure callbacks
  callbacks: ["otel"]  # list of callbacks - runs on success and failure
  service_callbacks: ["datadog", "prometheus"]  # logs redis, postgres failures on datadog, prometheus
  turn_off_message_logging: boolean  # prevent the messages and responses from being logged to on your callbacks, but request metadata will still be logged. Useful for privacy/compliance when handling sensitive data.
  redact_user_api_key_info: boolean  # Redact information about the user api key (hashed token, user_id, team id, etc.), from logs. Currently supported for Langfuse, OpenTelemetry, Logfire, ArizeAI logging.
  langfuse_default_tags: ["cache_hit", "cache_key", "proxy_base_url", "user_api_key_alias", "user_api_key_user_id", "user_api_key_user_email", "user_api_key_team_alias", "semantic-similarity", "proxy_base_url"] # default tags for Langfuse Logging
  
  # Networking settings
  request_timeout: 10 # (int) llm requesttimeout in seconds. Raise Timeout error if call takes longer than 10s. Sets litellm.request_timeout 
  force_ipv4: boolean # If true, litellm will force ipv4 for all LLM requests. Some users have seen httpx ConnectionError when using ipv6 + Anthropic API
  
  set_verbose: boolean # sets litellm.set_verbose=True to view verbose debug logs. DO NOT LEAVE THIS ON IN PRODUCTION
  json_logs: boolean # if true, logs will be in json format

  # Fallbacks, reliability
  default_fallbacks: ["claude-opus"] # set default_fallbacks, in case a specific model group is misconfigured / bad.
  content_policy_fallbacks: [{"gpt-3.5-turbo-small": ["claude-opus"]}] # fallbacks for ContentPolicyErrors
  context_window_fallbacks: [{"gpt-3.5-turbo-small": ["gpt-3.5-turbo-large", "claude-opus"]}] # fallbacks for ContextWindowExceededErrors

  # MCP Aliases - Map aliases to MCP server names for easier tool access
  mcp_aliases: { "github": "github_mcp_server", "zapier": "zapier_mcp_server", "deepwiki": "deepwiki_mcp_server" } # Maps friendly aliases to MCP server names. Only the first alias for each server is used

  # Caching settings
  cache: true 
  cache_params:        # set cache params for redis
    type: redis        # type of cache to initialize

    # Optional - Redis Settings
    host: "localhost"  # The host address for the Redis cache. Required if type is "redis".
    port: 6379  # The port number for the Redis cache. Required if type is "redis".
    password: "your_password"  # The password for the Redis cache. Required if type is "redis".
    namespace: "litellm.caching.caching" # namespace for redis cache
    max_connections: 100  # [OPTIONAL] Set Maximum number of Redis connections. Passed directly to redis-py. 
  
    # Optional - Redis Cluster Settings
    redis_startup_nodes: [{"host": "127.0.0.1", "port": "7001"}] 

    # Optional - Redis Sentinel Settings
    service_name: "mymaster"
    sentinel_nodes: [["localhost", 26379]]

    # Optional - GCP IAM Authentication for Redis
    gcp_service_account: "projects/-/serviceAccounts/your-sa@project.iam.gserviceaccount.com"  # GCP service account for IAM authentication
    gcp_ssl_ca_certs: "./server-ca.pem"  # Path to SSL CA certificate file for GCP Memorystore Redis
    ssl: true  # Enable SSL for secure connections
    ssl_cert_reqs: null  # Set to null for self-signed certificates
    ssl_check_hostname: false  # Set to false for self-signed certificates

    # Optional - Qdrant Semantic Cache Settings
    qdrant_semantic_cache_embedding_model: openai-embedding # the model should be defined on the model_list
    qdrant_collection_name: test_collection
    qdrant_quantization_config: binary
    similarity_threshold: 0.8   # similarity threshold for semantic cache

    # Optional - S3 Cache Settings
    s3_bucket_name: cache-bucket-litellm   # AWS Bucket Name for S3
    s3_region_name: us-west-2              # AWS Region Name for S3
    s3_aws_access_key_id: os.environ/AWS_ACCESS_KEY_ID  # us os.environ/<variable name> to pass environment variables. This is AWS Access Key ID for S3
    s3_aws_secret_access_key: os.environ/AWS_SECRET_ACCESS_KEY  # AWS Secret Access Key for S3
    s3_endpoint_url: https://s3.amazonaws.com  # [OPTIONAL] S3 endpoint URL, if you want to use Backblaze/cloudflare s3 bucket

    # Common Cache settings
    # Optional - Supported call types for caching
    supported_call_types: ["acompletion", "atext_completion", "aembedding", "atranscription"]
                          # /chat/completions, /completions, /embeddings, /audio/transcriptions
    mode: default_off # if default_off, you need to opt in to caching on a per call basis
    ttl: 600 # ttl for caching
    disable_copilot_system_to_assistant: False  # If false (default), converts all 'system' role messages to 'assistant' for GitHub Copilot compatibility. Set to true to disable this behavior.


callback_settings:
  otel:
    message_logging: boolean  # OTEL logging callback specific settings

general_settings:
  completion_model: string
  store_prompts_in_spend_logs: boolean
  forward_client_headers_to_llm_api: boolean
  disable_spend_logs: boolean  # turn off writing each transaction to the db
  disable_master_key_return: boolean  # turn off returning master key on UI (checked on '/user/info' endpoint)
  disable_retry_on_max_parallel_request_limit_error: boolean  # turn off retries when max parallel request limit is reached
  disable_reset_budget: boolean  # turn off reset budget scheduled task
  disable_adding_master_key_hash_to_db: boolean  # turn off storing master key hash in db, for spend tracking
  disable_responses_id_security: boolean  # turn off response ID security checks that prevent users from accessing other users' responses
  enable_jwt_auth: boolean  # allow proxy admin to auth in via jwt tokens with 'litellm_proxy_admin' in claims
  enforce_user_param: boolean  # requires all openai endpoint requests to have a 'user' param
  allowed_routes: ["route1", "route2"]  # list of allowed proxy API routes - a user can access. (currently JWT-Auth only)
  key_management_system: google_kms  # either google_kms or azure_kms
  master_key: string
  maximum_spend_logs_retention_period: 30d # The maximum time to retain spend logs before deletion.
  maximum_spend_logs_retention_interval: 1d # interval in which the spend log cleanup task should run in.

  # Database Settings
  database_url: string
  database_connection_pool_limit: 0  # default 100
  database_connection_timeout: 0  # default 60s
  allow_requests_on_db_unavailable: boolean  # if true, will allow requests that can not connect to the DB to verify Virtual Key to still work 

  custom_auth: string
  max_parallel_requests: 0  # the max parallel requests allowed per deployment 
  global_max_parallel_requests: 0  # the max parallel requests allowed on the proxy all up 
  infer_model_from_keys: true
  background_health_checks: true
  health_check_interval: 300
  alerting: ["slack", "email"]
  alerting_threshold: 0
  use_client_credentials_pass_through_routes: boolean  # use client credentials for all pass through routes like "/vertex-ai", /bedrock/. When this is True Virtual Key auth will not be applied on these endpoints

router_settings:
  routing_strategy: simple-shuffle # Literal["simple-shuffle", "least-busy", "usage-based-routing","latency-based-routing"], default="simple-shuffle" - RECOMMENDED for best performance
  redis_host: <your-redis-host>           # string
  redis_password: <your-redis-password>   # string
  redis_port: <your-redis-port>           # string
  enable_pre_call_checks: true            # bool - Before call is made check if a call is within model context window 
  allowed_fails: 3 # cooldown model if it fails > 1 call in a minute. 
  cooldown_time: 30 # (in seconds) how long to cooldown model if fails/min > allowed_fails
  disable_cooldowns: True                  # bool - Disable cooldowns for all models 
  enable_tag_filtering: True                # bool - Use tag based routing for requests
  retry_policy: {                          # Dict[str, int]: retry policy for different types of exceptions
    "AuthenticationErrorRetries": 3,
    "TimeoutErrorRetries": 3,
    "RateLimitErrorRetries": 3,
    "ContentPolicyViolationErrorRetries": 4,
    "InternalServerErrorRetries": 4
  }
  allowed_fails_policy: {
    "BadRequestErrorAllowedFails": 1000, # Allow 1000 BadRequestErrors before cooling down a deployment
    "AuthenticationErrorAllowedFails": 10, # int 
    "TimeoutErrorAllowedFails": 12, # int 
    "RateLimitErrorAllowedFails": 10000, # int 
    "ContentPolicyViolationErrorAllowedFails": 15, # int 
    "InternalServerErrorAllowedFails": 20, # int 
  }
  content_policy_fallbacks=[{"claude-2": ["my-fallback-model"]}] # List[Dict[str, List[str]]]: Fallback model for content policy violations
  fallbacks=[{"claude-2": ["my-fallback-model"]}] # List[Dict[str, List[str]]]: Fallback model for all errors

litellm_settings - Reference

Name	Type	Description
success_callback	array of strings	List of success callbacks. Doc Proxy logging callbacks, Doc Metrics
failure_callback	array of strings	List of failure callbacks Doc Proxy logging callbacks, Doc Metrics
callbacks	array of strings	List of callbacks - runs on success and failure Doc Proxy logging callbacks, Doc Metrics
service_callbacks	array of strings	System health monitoring - Logs redis, postgres failures on specified services (e.g. datadog, prometheus) Doc Metrics
turn_off_message_logging	boolean	If true, prevents messages and responses from being logged to callbacks, but request metadata will still be logged. Useful for privacy/compliance when handling sensitive data Proxy Logging
modify_params	boolean	If true, allows modifying the parameters of the request before it is sent to the LLM provider
enable_preview_features	boolean	If true, enables preview features - e.g. Azure O1 Models with streaming support.
redact_user_api_key_info	boolean	If true, redacts information about the user api key from logs Proxy Logging
mcp_aliases	object	Maps friendly aliases to MCP server names for easier tool access. Only the first alias for each server is used. MCP Aliases
langfuse_default_tags	array of strings	Default tags for Langfuse Logging. Use this if you want to control which LiteLLM-specific fields are logged as tags by the LiteLLM proxy. By default LiteLLM Proxy logs no LiteLLM-specific fields as tags. Further docs
set_verbose	boolean	If true, sets litellm.set_verbose=True to view verbose debug logs. DO NOT LEAVE THIS ON IN PRODUCTION
json_logs	boolean	If true, logs will be in json format. If you need to store the logs as JSON, just set the litellm.json_logs = True. We currently just log the raw POST request from litellm as a JSON Further docs
default_fallbacks	array of strings	List of fallback models to use if a specific model group is misconfigured / bad. Further docs
request_timeout	integer	The timeout for requests in seconds. If not set, the default value is 6000 seconds. For reference OpenAI Python SDK defaults to 600 seconds.
force_ipv4	boolean	If true, litellm will force ipv4 for all LLM requests. Some users have seen httpx ConnectionError when using ipv6 + Anthropic API
content_policy_fallbacks	array of objects	Fallbacks to use when a ContentPolicyViolationError is encountered. Further docs
context_window_fallbacks	array of objects	Fallbacks to use when a ContextWindowExceededError is encountered. Further docs
cache	boolean	If true, enables caching. Further docs
cache_params	object	Parameters for the cache. Further docs
disable_end_user_cost_tracking	boolean	If true, turns off end user cost tracking on prometheus metrics + litellm spend logs table on proxy.
disable_end_user_cost_tracking_prometheus_only	boolean	If true, turns off end user cost tracking on prometheus metrics only.
key_generation_settings	object	Restricts who can generate keys. Further docs
disable_add_transform_inline_image_block	boolean	For Fireworks AI models - if true, turns off the auto-add of #transform=inline to the url of the image_url, if the model is not a vision model.
disable_hf_tokenizer_download	boolean	If true, it defaults to using the openai tokenizer for all models (including huggingface models).
enable_json_schema_validation	boolean	If true, enables json schema validation for all requests.
disable_copilot_system_to_assistant	boolean	If false (default), converts all 'system' role messages to 'assistant' for GitHub Copilot compatibility. Set to true to disable this behavior. Useful for tools (like Claude Code) that send system messages, which Copilot does not support.

general_settings - Reference

Name	Type	Description
completion_model	string	The default model to use for completions when model is not specified in the request
disable_spend_logs	boolean	If true, turns off writing each transaction to the database
disable_spend_updates	boolean	If true, turns off all spend updates to the DB. Including key/user/team spend updates.
disable_master_key_return	boolean	If true, turns off returning master key on UI. (checked on '/user/info' endpoint)
disable_retry_on_max_parallel_request_limit_error	boolean	If true, turns off retries when max parallel request limit is reached
disable_reset_budget	boolean	If true, turns off reset budget scheduled task
disable_adding_master_key_hash_to_db	boolean	If true, turns off storing master key hash in db
disable_responses_id_security	boolean	If true, disables response ID security checks that prevent users from accessing response IDs from other users. When false (default), response IDs are encrypted with user information to ensure users can only access their own responses. Applies to /v1/responses endpoints
enable_jwt_auth	boolean	allow proxy admin to auth in via jwt tokens with 'litellm_proxy_admin' in claims. Doc on JWT Tokens
enforce_user_param	boolean	If true, requires all OpenAI endpoint requests to have a 'user' param. Doc on call hooks
allowed_routes	array of strings	List of allowed proxy API routes a user can access Doc on controlling allowed routes
key_management_system	string	Specifies the key management system. Doc Secret Managers
master_key	string	The master key for the proxy Set up Virtual Keys
database_url	string	The URL for the database connection Set up Virtual Keys
database_connection_pool_limit	integer	The limit for database connection pool Setting DB Connection Pool limit
database_connection_timeout	integer	The timeout for database connections in seconds Setting DB Connection Pool limit, timeout
allow_requests_on_db_unavailable	boolean	If true, allows requests to succeed even if DB is unreachable. Only use this if running LiteLLM in your VPC This will allow requests to work even when LiteLLM cannot connect to the DB to verify a Virtual Key Doc on graceful db unavailability
custom_auth	string	Write your own custom authentication logic Doc Custom Auth
max_parallel_requests	integer	The max parallel requests allowed per deployment
global_max_parallel_requests	integer	The max parallel requests allowed on the proxy overall
infer_model_from_keys	boolean	If true, infers the model from the provided keys
background_health_checks	boolean	If true, enables background health checks. Doc on health checks
health_check_interval	integer	The interval for health checks in seconds Doc on health checks
alerting	array of strings	List of alerting methods Doc on Slack Alerting
alerting_threshold	integer	The threshold for triggering alerts Doc on Slack Alerting
use_client_credentials_pass_through_routes	boolean	If true, uses client credentials for all pass-through routes. Doc on pass through routes
health_check_details	boolean	If false, hides health check details (e.g. remaining rate limit). Doc on health checks
public_routes	List[str]	(Enterprise Feature) Control list of public routes
alert_types	List[str]	Control list of alert types to send to slack (Doc on alert types)[./alerting.md]
enforced_params	List[str]	(Enterprise Feature) List of params that must be included in all requests to the proxy
enable_oauth2_auth	boolean	(Enterprise Feature) If true, enables oauth2.0 authentication
use_x_forwarded_for	str	If true, uses the X-Forwarded-For header to get the client IP address
service_account_settings	List[Dict[str, Any]]	Set service_account_settings if you want to create settings that only apply to service account keys (Doc on service accounts)[./service_accounts.md]
image_generation_model	str	The default model to use for image generation - ignores model set in request
store_model_in_db	boolean	If true, enables storing model + credential information in the DB.
supported_db_objects	List[str]	Fine-grained control over which object types to load from the database when store_model_in_db is True. Available types: "models", "mcp", "guardrails", "vector_stores", "pass_through_endpoints", "prompts", "model_cost_map". If not set, all object types are loaded (default behavior). Example: supported_db_objects: ["mcp"] to only load MCP servers from DB.
store_prompts_in_spend_logs	boolean	If true, allows prompts and responses to be stored in the spend logs table.
max_request_size_mb	int	The maximum size for requests in MB. Requests above this size will be rejected.
max_response_size_mb	int	The maximum size for responses in MB. LLM Responses above this size will not be sent.
proxy_budget_rescheduler_min_time	int	The minimum time (in seconds) to wait before checking db for budget resets. Default is 597 seconds
proxy_budget_rescheduler_max_time	int	The maximum time (in seconds) to wait before checking db for budget resets. Default is 605 seconds
proxy_batch_write_at	int	Time (in seconds) to wait before batch writing spend logs to the db. Default is 30 seconds
proxy_batch_polling_interval	int	Time (in seconds) to wait before polling a batch, to check if it's completed. Default is 6000 seconds (1 hour)
alerting_args	dict	Args for Slack Alerting Doc on Slack Alerting
custom_key_generate	str	Custom function for key generation Doc on custom key generation
allowed_ips	List[str]	List of IPs allowed to access the proxy. If not set, all IPs are allowed.
embedding_model	str	The default model to use for embeddings - ignores model set in request
default_team_disabled	boolean	If true, users cannot create 'personal' keys (keys with no team_id).
alert_to_webhook_url	Dict[str]	Specify a webhook url for each alert type.
key_management_settings	List[Dict[str, Any]]	Settings for key management system (e.g. AWS KMS, Azure Key Vault) Doc on key management
allow_user_auth	boolean	(Deprecated) old approach for user authentication.
user_api_key_cache_ttl	int	The time (in seconds) to cache user api keys in memory.
disable_prisma_schema_update	boolean	If true, turns off automatic schema updates to DB
litellm_key_header_name	str	If set, allows passing LiteLLM keys as a custom header. Doc on custom headers
moderation_model	str	The default model to use for moderation.
custom_sso	str	Path to a python file that implements custom SSO logic. Doc on custom SSO
allow_client_side_credentials	boolean	If true, allows passing client side credentials to the proxy. (Useful when testing finetuning models) Doc on client side credentials
admin_only_routes	List[str]	(Enterprise Feature) List of routes that are only accessible to admin users. Doc on admin only routes
use_azure_key_vault	boolean	If true, load keys from azure key vault
use_google_kms	boolean	If true, load keys from google kms
spend_report_frequency	str	Specify how often you want a Spend Report to be sent (e.g. "1d", "2d", "30d") More on this
ui_access_mode	Literal["admin_only"]	If set, restricts access to the UI to admin users only. Docs
litellm_jwtauth	Dict[str, Any]	Settings for JWT authentication. Docs
litellm_license	str	The license key for the proxy. Docs
oauth2_config_mappings	Dict[str, str]	Define the OAuth2 config mappings
pass_through_endpoints	List[Dict[str, Any]]	Define the pass through endpoints. Docs
enable_oauth2_proxy_auth	boolean	(Enterprise Feature) If true, enables oauth2.0 authentication
forward_openai_org_id	boolean	If true, forwards the OpenAI Organization ID to the backend LLM call (if it's OpenAI).
forward_client_headers_to_llm_api	boolean	If true, forwards the client headers (any x- headers and anthropic-beta headers) to the backend LLM call
maximum_spend_logs_retention_period	str	Used to set the max retention time for spend logs in the db, after which they will be auto-purged
maximum_spend_logs_retention_interval	str	Used to set the interval in which the spend log cleanup task should run in.

router_settings - Reference

info

Most values can also be set via litellm_settings. If you see overlapping values, settings on router_settings will override those on litellm_settings.

router_settings:
  routing_strategy: simple-shuffle # Literal["simple-shuffle", "least-busy", "usage-based-routing","latency-based-routing"], default="simple-shuffle" - RECOMMENDED for best performance
  redis_host: <your-redis-host>           # string
  redis_password: <your-redis-password>   # string
  redis_port: <your-redis-port>           # string
  enable_pre_call_checks: true            # bool - Before call is made check if a call is within model context window 
  allowed_fails: 3 # cooldown model if it fails > 1 call in a minute. 
  cooldown_time: 30 # (in seconds) how long to cooldown model if fails/min > allowed_fails
  disable_cooldowns: True                  # bool - Disable cooldowns for all models 
  enable_tag_filtering: True                # bool - Use tag based routing for requests
  retry_policy: {                          # Dict[str, int]: retry policy for different types of exceptions
    "AuthenticationErrorRetries": 3,
    "TimeoutErrorRetries": 3,
    "RateLimitErrorRetries": 3,
    "ContentPolicyViolationErrorRetries": 4,
    "InternalServerErrorRetries": 4
  }
  allowed_fails_policy: {
    "BadRequestErrorAllowedFails": 1000, # Allow 1000 BadRequestErrors before cooling down a deployment
    "AuthenticationErrorAllowedFails": 10, # int 
    "TimeoutErrorAllowedFails": 12, # int 
    "RateLimitErrorAllowedFails": 10000, # int 
    "ContentPolicyViolationErrorAllowedFails": 15, # int 
    "InternalServerErrorAllowedFails": 20, # int 
  }
  content_policy_fallbacks=[{"claude-2": ["my-fallback-model"]}] # List[Dict[str, List[str]]]: Fallback model for content policy violations
  fallbacks=[{"claude-2": ["my-fallback-model"]}] # List[Dict[str, List[str]]]: Fallback model for all errors

Name	Type	Description
routing_strategy	string	The strategy used for routing requests. Options: "simple-shuffle", "least-busy", "usage-based-routing", "latency-based-routing". Default is "simple-shuffle". More information here
redis_host	string	The host address for the Redis server. Only set this if you have multiple instances of LiteLLM Proxy and want current tpm/rpm tracking to be shared across them
redis_password	string	The password for the Redis server. Only set this if you have multiple instances of LiteLLM Proxy and want current tpm/rpm tracking to be shared across them
redis_port	string	The port number for the Redis server. Only set this if you have multiple instances of LiteLLM Proxy and want current tpm/rpm tracking to be shared across them
enable_pre_call_check	boolean	If true, checks if a call is within the model's context window before making the call. More information here
content_policy_fallbacks	array of objects	Specifies fallback models for content policy violations. More information here
fallbacks	array of objects	Specifies fallback models for all types of errors. More information here
enable_tag_filtering	boolean	If true, uses tag based routing for requests Tag Based Routing
cooldown_time	integer	The duration (in seconds) to cooldown a model if it exceeds the allowed failures.
disable_cooldowns	boolean	If true, disables cooldowns for all models. More information here
retry_policy	object	Specifies the number of retries for different types of exceptions. More information here
allowed_fails	integer	The number of failures allowed before cooling down a model. More information here
allowed_fails_policy	object	Specifies the number of allowed failures for different error types before cooling down a deployment. More information here
default_max_parallel_requests	Optional[int]	The default maximum number of parallel requests for a deployment.
default_priority	(Optional[int])	The default priority for a request. Only for '.scheduler_acompletion()'. Default is None.
polling_interval	(Optional[float])	frequency of polling queue. Only for '.scheduler_acompletion()'. Default is 3ms.
max_fallbacks	Optional[int]	The maximum number of fallbacks to try before exiting the call. Defaults to 5.
default_litellm_params	Optional[dict]	The default litellm parameters to add to all requests (e.g. temperature, max_tokens).
timeout	Optional[float]	The default timeout for a request. Default is 10 minutes.
stream_timeout	Optional[float]	The default timeout for a streaming request. If not set, the 'timeout' value is used.
debug_level	Literal["DEBUG", "INFO"]	The debug level for the logging library in the router. Defaults to "INFO".
client_ttl	int	Time-to-live for cached clients in seconds. Defaults to 3600.
cache_kwargs	dict	Additional keyword arguments for the cache initialization.
routing_strategy_args	dict	Additional keyword arguments for the routing strategy - e.g. lowest latency routing default ttl
model_group_alias	dict	Model group alias mapping. E.g. {"claude-3-haiku": "claude-3-haiku-20240229"}
num_retries	int	Number of retries for a request. Defaults to 3.
default_fallbacks	Optional[List[str]]	Fallbacks to try if no model group-specific fallbacks are defined.
caching_groups	Optional[List[tuple]]	List of model groups for caching across model groups. Defaults to None. - e.g. caching_groups=[("openai-gpt-3.5-turbo", "azure-gpt-3.5-turbo")]
alerting_config	AlertingConfig	[SDK-only arg] Slack alerting configuration. Defaults to None. Further Docs
assistants_config	AssistantsConfig	Set on proxy via assistant_settings. Further docs
set_verbose	boolean	DEPRECATED PARAM - see debug docs If true, sets the logging level to verbose.
retry_after	int	Time to wait before retrying a request in seconds. Defaults to 0. If x-retry-after is received from LLM API, this value is overridden.
provider_budget_config	ProviderBudgetConfig	Provider budget configuration. Use this to set llm_provider budget limits. example $100/day to OpenAI, $100/day to Azure, etc. Defaults to None. Further Docs
enable_pre_call_checks	boolean	If true, checks if a call is within the model's context window before making the call. More information here
model_group_retry_policy	Dict[str, RetryPolicy]	[SDK-only arg] Set retry policy for model groups.
context_window_fallbacks	List[Dict[str, List[str]]]	Fallback models for context window violations.
redis_url	str	URL for Redis server. Known performance issue with Redis URL.
cache_responses	boolean	Flag to enable caching LLM Responses, if cache set under router_settings. If true, caches responses. Defaults to False.
router_general_settings	RouterGeneralSettings	[SDK-Only] Router general settings - contains optimizations like 'async_only_mode'. Docs
optional_pre_call_checks	List[str]	List of pre-call checks to add to the router. Currently supported: 'router_budget_limiting', 'prompt_caching'
ignore_invalid_deployments	boolean	If true, ignores invalid deployments. Default for proxy is True - to prevent invalid models from blocking other models from being loaded.
search_tools	List[SearchToolTypedDict]	List of search tool configurations for Search API integration. Each tool specifies a search_tool_name and litellm_params with search_provider, api_key, api_base, etc. Further Docs

environment variables - Reference

Name	Description
ACTIONS_ID_TOKEN_REQUEST_TOKEN	Token for requesting ID in GitHub Actions
ACTIONS_ID_TOKEN_REQUEST_URL	URL for requesting ID token in GitHub Actions
AGENTOPS_ENVIRONMENT	Environment for AgentOps logging integration
AGENTOPS_API_KEY	API Key for AgentOps logging integration
AGENTOPS_SERVICE_NAME	Service Name for AgentOps logging integration
AISPEND_ACCOUNT_ID	Account ID for AI Spend
AISPEND_API_KEY	API Key for AI Spend
AIOHTTP_CONNECTOR_LIMIT	Connection limit for aiohttp connector. When set to 0, no limit is applied. Default is 0
AIOHTTP_KEEPALIVE_TIMEOUT	Keep-alive timeout for aiohttp connections in seconds. Default is 120
AIOHTTP_TRUST_ENV	Flag to enable aiohttp trust environment. When this is set to True, aiohttp will respect HTTP(S)_PROXY env vars. Default is False
AIOHTTP_TTL_DNS_CACHE	DNS cache time-to-live for aiohttp in seconds. Default is 300
ALLOWED_EMAIL_DOMAINS	List of email domains allowed for access
ARIZE_API_KEY	API key for Arize platform integration
ARIZE_SPACE_KEY	Space key for Arize platform
ARGILLA_BATCH_SIZE	Batch size for Argilla logging
ARGILLA_API_KEY	API key for Argilla platform
ARGILLA_SAMPLING_RATE	Sampling rate for Argilla logging
ARGILLA_DATASET_NAME	Dataset name for Argilla logging
ARGILLA_BASE_URL	Base URL for Argilla service
ATHINA_API_KEY	API key for Athina service
ATHINA_BASE_URL	Base URL for Athina service (defaults to https://log.athina.ai)
AUTH_STRATEGY	Strategy used for authentication (e.g., OAuth, API key)
ANTHROPIC_API_KEY	API key for Anthropic service
ANTHROPIC_API_BASE	Base URL for Anthropic API. Default is https://api.anthropic.com
AWS_ACCESS_KEY_ID	Access Key ID for AWS services
AWS_BATCH_ROLE_ARN	ARN of the AWS IAM role for batch operations
AWS_DEFAULT_REGION	Default AWS region for service interactions when AWS_REGION is not set
AWS_PROFILE_NAME	AWS CLI profile name to be used
AWS_REGION	AWS region for service interactions (takes precedence over AWS_DEFAULT_REGION)
AWS_REGION_NAME	Default AWS region for service interactions
AWS_ROLE_ARN	ARN of the AWS IAM role to assume for authentication
AWS_ROLE_NAME	Role name for AWS IAM usage
AWS_S3_BUCKET_NAME	Name of the AWS S3 bucket for file operations
AWS_S3_OUTPUT_BUCKET_NAME	Name of the AWS S3 output bucket for batch operations
AWS_SECRET_ACCESS_KEY	Secret Access Key for AWS services
AWS_SESSION_NAME	Name for AWS session
AWS_WEB_IDENTITY_TOKEN	Web identity token for AWS
AWS_WEB_IDENTITY_TOKEN_FILE	Path to file containing web identity token for AWS
AZURE_API_VERSION	Version of the Azure API being used
AZURE_AUTHORITY_HOST	Azure authority host URL
AZURE_CERTIFICATE_PASSWORD	Password for Azure OpenAI certificate
AZURE_CLIENT_ID	Client ID for Azure services
AZURE_CLIENT_SECRET	Client secret for Azure services
AZURE_CODE_INTERPRETER_COST_PER_SESSION	Cost per session for Azure Code Interpreter service
AZURE_COMPUTER_USE_INPUT_COST_PER_1K_TOKENS	Input cost per 1K tokens for Azure Computer Use service
AZURE_COMPUTER_USE_OUTPUT_COST_PER_1K_TOKENS	Output cost per 1K tokens for Azure Computer Use service
AZURE_DEFAULT_RESPONSES_API_VERSION	Version of the Azure Default Responses API being used. Default is "preview"
AZURE_TENANT_ID	Tenant ID for Azure Active Directory
AZURE_USERNAME	Username for Azure services, use in conjunction with AZURE_PASSWORD for azure ad token with basic username/password workflow
AZURE_PASSWORD	Password for Azure services, use in conjunction with AZURE_USERNAME for azure ad token with basic username/password workflow
AZURE_FEDERATED_TOKEN_FILE	File path to Azure federated token
AZURE_FILE_SEARCH_COST_PER_GB_PER_DAY	Cost per GB per day for Azure File Search service
AZURE_SCOPE	For EntraID Auth, Scope for Azure services, defaults to "https://cognitiveservices.azure.com/.default"
AZURE_KEY_VAULT_URI	URI for Azure Key Vault
AZURE_OPERATION_POLLING_TIMEOUT	Timeout in seconds for Azure operation polling
AZURE_STORAGE_ACCOUNT_KEY	The Azure Storage Account Key to use for Authentication to Azure Blob Storage logging
AZURE_STORAGE_ACCOUNT_NAME	Name of the Azure Storage Account to use for logging to Azure Blob Storage
AZURE_STORAGE_FILE_SYSTEM	Name of the Azure Storage File System to use for logging to Azure Blob Storage. (Typically the Container name)
AZURE_STORAGE_TENANT_ID	The Application Tenant ID to use for Authentication to Azure Blob Storage logging
AZURE_STORAGE_CLIENT_ID	The Application Client ID to use for Authentication to Azure Blob Storage logging
AZURE_STORAGE_CLIENT_SECRET	The Application Client Secret to use for Authentication to Azure Blob Storage logging
AZURE_VECTOR_STORE_COST_PER_GB_PER_DAY	Cost per GB per day for Azure Vector Store service
BATCH_STATUS_POLL_INTERVAL_SECONDS	Interval in seconds for polling batch status. Default is 3600 (1 hour)
BATCH_STATUS_POLL_MAX_ATTEMPTS	Maximum number of attempts for polling batch status. Default is 24 (for 24 hours)
BEDROCK_MAX_POLICY_SIZE	Maximum size for Bedrock policy. Default is 75
BERRISPEND_ACCOUNT_ID	Account ID for BerriSpend service
BRAINTRUST_API_KEY	API key for Braintrust integration
BRAINTRUST_API_BASE	Base URL for Braintrust API. Default is https://api.braintrustdata.com/v1
CACHED_STREAMING_CHUNK_DELAY	Delay in seconds for cached streaming chunks. Default is 0.02
CIRCLE_OIDC_TOKEN	OpenID Connect token for CircleCI
CIRCLE_OIDC_TOKEN_V2	Version 2 of the OpenID Connect token for CircleCI
CLOUDZERO_API_KEY	CloudZero API key for authentication
CLOUDZERO_CONNECTION_ID	CloudZero connection ID for data submission
CLOUDZERO_EXPORT_INTERVAL_MINUTES	Interval in minutes for CloudZero data export operations
CLOUDZERO_MAX_FETCHED_DATA_RECORDS	Maximum number of data records to fetch from CloudZero
CLOUDZERO_TIMEZONE	Timezone for date handling (default: UTC)
CONFIG_FILE_PATH	File path for configuration file
CONFIDENT_API_KEY	API key for DeepEval integration
CUSTOM_TIKTOKEN_CACHE_DIR	Custom directory for Tiktoken cache
CONFIDENT_API_KEY	API key for Confident AI (Deepeval) Logging service
COHERE_API_BASE	Base URL for Cohere API. Default is https://api.cohere.com
DATABASE_HOST	Hostname for the database server
DATABASE_NAME	Name of the database
DATABASE_PASSWORD	Password for the database user
DATABASE_PORT	Port number for database connection
DATABASE_SCHEMA	Schema name used in the database
DATABASE_URL	Connection URL for the database
DATABASE_USER	Username for database connection
DATABASE_USERNAME	Alias for database user
DATABRICKS_API_BASE	Base URL for Databricks API
DAYS_IN_A_MONTH	Days in a month for calculation purposes. Default is 28
DAYS_IN_A_WEEK	Days in a week for calculation purposes. Default is 7
DAYS_IN_A_YEAR	Days in a year for calculation purposes. Default is 365
DYNAMOAI_API_KEY	API key for DynamoAI Guardrails service
DYNAMOAI_API_BASE	Base URL for DynamoAI API. Default is https://api.dynamo.ai
DYNAMOAI_MODEL_ID	Model ID for DynamoAI tracking/logging purposes
DYNAMOAI_POLICY_IDS	Comma-separated list of DynamoAI policy IDs to apply
DD_BASE_URL	Base URL for Datadog integration
DATADOG_BASE_URL	(Alternative to DD_BASE_URL) Base URL for Datadog integration
_DATADOG_BASE_URL	(Alternative to DD_BASE_URL) Base URL for Datadog integration
DD_API_KEY	API key for Datadog integration
DD_SITE	Site URL for Datadog (e.g., datadoghq.com)
DD_SOURCE	Source identifier for Datadog logs
DD_TRACER_STREAMING_CHUNK_YIELD_RESOURCE	Resource name for Datadog tracing of streaming chunk yields. Default is "streaming.chunk.yield"
DD_ENV	Environment identifier for Datadog logs. Only supported for datadog_llm_observability callback
DD_SERVICE	Service identifier for Datadog logs. Defaults to "litellm-server"
DD_VERSION	Version identifier for Datadog logs. Defaults to "unknown"
DEBUG_OTEL	Enable debug mode for OpenTelemetry
DEFAULT_ALLOWED_FAILS	Maximum failures allowed before cooling down a model. Default is 3
DEFAULT_ANTHROPIC_CHAT_MAX_TOKENS	Default maximum tokens for Anthropic chat completions. Default is 4096
DEFAULT_BATCH_SIZE	Default batch size for operations. Default is 512
DEFAULT_CLIENT_DISCONNECT_CHECK_TIMEOUT_SECONDS	Timeout in seconds for checking client disconnection. Default is 1
DEFAULT_COOLDOWN_TIME_SECONDS	Duration in seconds to cooldown a model after failures. Default is 5
DEFAULT_CRON_JOB_LOCK_TTL_SECONDS	Time-to-live for cron job locks in seconds. Default is 60 (1 minute)
DEFAULT_DATAFORSEO_LOCATION_CODE	Default location code for DataForSEO search API. Default is 2250 (France)
DEFAULT_FAILURE_THRESHOLD_PERCENT	Threshold percentage of failures to cool down a deployment. Default is 0.5 (50%)
DEFAULT_FLUSH_INTERVAL_SECONDS	Default interval in seconds for flushing operations. Default is 5
DEFAULT_HEALTH_CHECK_INTERVAL	Default interval in seconds for health checks. Default is 300 (5 minutes)
DEFAULT_IMAGE_HEIGHT	Default height for images. Default is 300
DEFAULT_IMAGE_TOKEN_COUNT	Default token count for images. Default is 250
DEFAULT_IMAGE_WIDTH	Default width for images. Default is 300
DEFAULT_IN_MEMORY_TTL	Default time-to-live for in-memory cache in seconds. Default is 5
DEFAULT_MANAGEMENT_OBJECT_IN_MEMORY_CACHE_TTL	Default time-to-live in seconds for management objects (User, Team, Key, Organization) in memory cache. Default is 60 seconds.
DEFAULT_MAX_LRU_CACHE_SIZE	Default maximum size for LRU cache. Default is 16
DEFAULT_MAX_RECURSE_DEPTH	Default maximum recursion depth. Default is 100
DEFAULT_MAX_RECURSE_DEPTH_SENSITIVE_DATA_MASKER	Default maximum recursion depth for sensitive data masker. Default is 10
DEFAULT_MAX_RETRIES	Default maximum retry attempts. Default is 2
DEFAULT_MAX_TOKENS	Default maximum tokens for LLM calls. Default is 4096
DEFAULT_MAX_TOKENS_FOR_TRITON	Default maximum tokens for Triton models. Default is 2000
DEFAULT_MAX_REDIS_BATCH_CACHE_SIZE	Default maximum size for redis batch cache. Default is 1000
DEFAULT_MOCK_RESPONSE_COMPLETION_TOKEN_COUNT	Default token count for mock response completions. Default is 20
DEFAULT_MOCK_RESPONSE_PROMPT_TOKEN_COUNT	Default token count for mock response prompts. Default is 10
DEFAULT_MODEL_CREATED_AT_TIME	Default creation timestamp for models. Default is 1677610602
DEFAULT_NUM_WORKERS_LITELLM_PROXY	Default number of workers for LiteLLM proxy. Default is 4. We strongly recommend setting NUM Workers to Number of vCPUs available
DEFAULT_PROMPT_INJECTION_SIMILARITY_THRESHOLD	Default threshold for prompt injection similarity. Default is 0.7
DEFAULT_POLLING_INTERVAL	Default polling interval for schedulers in seconds. Default is 0.03
DEFAULT_REASONING_EFFORT_DISABLE_THINKING_BUDGET	Default reasoning effort disable thinking budget. Default is 0
DEFAULT_REASONING_EFFORT_HIGH_THINKING_BUDGET	Default high reasoning effort thinking budget. Default is 4096
DEFAULT_REASONING_EFFORT_LOW_THINKING_BUDGET	Default low reasoning effort thinking budget. Default is 1024
DEFAULT_REASONING_EFFORT_MEDIUM_THINKING_BUDGET	Default medium reasoning effort thinking budget. Default is 2048
DEFAULT_REASONING_EFFORT_MINIMAL_THINKING_BUDGET	Default minimal reasoning effort thinking budget. Default is 512
DEFAULT_REASONING_EFFORT_MINIMAL_THINKING_BUDGET_GEMINI_2_5_FLASH	Default minimal reasoning effort thinking budget for Gemini 2.5 Flash. Default is 512
DEFAULT_REASONING_EFFORT_MINIMAL_THINKING_BUDGET_GEMINI_2_5_FLASH_LITE	Default minimal reasoning effort thinking budget for Gemini 2.5 Flash Lite. Default is 512
DEFAULT_REASONING_EFFORT_MINIMAL_THINKING_BUDGET_GEMINI_2_5_PRO	Default minimal reasoning effort thinking budget for Gemini 2.5 Pro. Default is 512
DEFAULT_REDIS_SYNC_INTERVAL	Default Redis synchronization interval in seconds. Default is 1
DEFAULT_REPLICATE_GPU_PRICE_PER_SECOND	Default price per second for Replicate GPU. Default is 0.001400
DEFAULT_REPLICATE_POLLING_DELAY_SECONDS	Default delay in seconds for Replicate polling. Default is 1
DEFAULT_REPLICATE_POLLING_RETRIES	Default number of retries for Replicate polling. Default is 5
DEFAULT_SQS_BATCH_SIZE	Default batch size for SQS logging. Default is 512
DEFAULT_SQS_FLUSH_INTERVAL_SECONDS	Default flush interval for SQS logging. Default is 10
DEFAULT_S3_BATCH_SIZE	Default batch size for S3 logging. Default is 512
DEFAULT_S3_FLUSH_INTERVAL_SECONDS	Default flush interval for S3 logging. Default is 10
DEFAULT_SLACK_ALERTING_THRESHOLD	Default threshold for Slack alerting. Default is 300
DEFAULT_SOFT_BUDGET	Default soft budget for LiteLLM proxy keys. Default is 50.0
DEFAULT_TRIM_RATIO	Default ratio of tokens to trim from prompt end. Default is 0.75
DIRECT_URL	Direct URL for service endpoint
DISABLE_ADMIN_UI	Toggle to disable the admin UI
DISABLE_AIOHTTP_TRANSPORT	Flag to disable aiohttp transport. When this is set to True, litellm will use httpx instead of aiohttp. Default is False
DISABLE_AIOHTTP_TRUST_ENV	Flag to disable aiohttp trust environment. When this is set to True, litellm will not trust the environment for aiohttp eg. HTTP_PROXY and HTTPS_PROXY environment variables will not be used when this is set to True. Default is False
DISABLE_SCHEMA_UPDATE	Toggle to disable schema updates
DYNAMIC_RATE_LIMIT_ERROR_THRESHOLD_PER_MINUTE	Threshold for deployment failures per minute before enforcing rate limits in parallel request limiter. Default is 1
DOCS_DESCRIPTION	Description text for documentation pages
DOCS_FILTERED	Flag indicating filtered documentation
DOCS_TITLE	Title of the documentation pages
DOCS_URL	The path to the Swagger API documentation. By default this is "/"
EMAIL_LOGO_URL	URL for the logo used in emails
EMAIL_SUPPORT_CONTACT	Support contact email address
EMAIL_SIGNATURE	Custom HTML footer/signature for all emails. Can include HTML tags for formatting and links.
EMAIL_SUBJECT_INVITATION	Custom subject template for invitation emails.
EMAIL_SUBJECT_KEY_CREATED	Custom subject template for key creation emails.
ENKRYPTAI_API_BASE	Base URL for EnkryptAI Guardrails API. Default is https://api.enkryptai.com
ENKRYPTAI_API_KEY	API key for EnkryptAI Guardrails service
EXPERIMENTAL_MULTI_INSTANCE_RATE_LIMITING	Flag to enable new multi-instance rate limiting. Default is False
FIREWORKS_AI_4_B	Size parameter for Fireworks AI 4B model. Default is 4
FIREWORKS_AI_16_B	Size parameter for Fireworks AI 16B model. Default is 16
FIREWORKS_AI_56_B_MOE	Size parameter for Fireworks AI 56B MOE model. Default is 56
FIREWORKS_AI_80_B	Size parameter for Fireworks AI 80B model. Default is 80
FIREWORKS_AI_176_B_MOE	Size parameter for Fireworks AI 176B MOE model. Default is 176
FUNCTION_DEFINITION_TOKEN_COUNT	Token count for function definitions. Default is 9
GALILEO_BASE_URL	Base URL for Galileo platform
GALILEO_PASSWORD	Password for Galileo authentication
GALILEO_PROJECT_ID	Project ID for Galileo usage
GALILEO_USERNAME	Username for Galileo authentication
GOOGLE_SECRET_MANAGER_PROJECT_ID	Project ID for Google Secret Manager
GCS_BUCKET_NAME	Name of the Google Cloud Storage bucket
GCS_PATH_SERVICE_ACCOUNT	Path to the Google Cloud service account JSON file
GCS_FLUSH_INTERVAL	Flush interval for GCS logging (in seconds). Specify how often you want a log to be sent to GCS. Default is 20 seconds
GCS_BATCH_SIZE	Batch size for GCS logging. Specify after how many logs you want to flush to GCS. If BATCH_SIZE is set to 10, logs are flushed every 10 logs. Default is 2048
GCS_PUBSUB_TOPIC_ID	PubSub Topic ID to send LiteLLM SpendLogs to.
GCS_PUBSUB_PROJECT_ID	PubSub Project ID to send LiteLLM SpendLogs to.
GENERIC_AUTHORIZATION_ENDPOINT	Authorization endpoint for generic OAuth providers
GENERIC_CLIENT_ID	Client ID for generic OAuth providers
GENERIC_CLIENT_SECRET	Client secret for generic OAuth providers
GENERIC_CLIENT_STATE	State parameter for generic client authentication
GENERIC_CLIENT_USE_PKCE	Enable PKCE (Proof Key for Code Exchange) for generic OAuth providers. Set to "true" when your OAuth provider requires PKCE. Default is false
GENERIC_SSO_HEADERS	Comma-separated list of additional headers to add to the request - e.g. Authorization=Bearer <token>, Content-Type=application/json, etc.
GENERIC_INCLUDE_CLIENT_ID	Include client ID in requests for OAuth
GENERIC_SCOPE	Scope settings for generic OAuth providers
GENERIC_TOKEN_ENDPOINT	Token endpoint for generic OAuth providers
GENERIC_USER_DISPLAY_NAME_ATTRIBUTE	Attribute for user's display name in generic auth
GENERIC_USER_EMAIL_ATTRIBUTE	Attribute for user's email in generic auth
GENERIC_USER_FIRST_NAME_ATTRIBUTE	Attribute for user's first name in generic auth
GENERIC_USER_ID_ATTRIBUTE	Attribute for user ID in generic auth
GENERIC_USER_LAST_NAME_ATTRIBUTE	Attribute for user's last name in generic auth
GENERIC_USER_PROVIDER_ATTRIBUTE	Attribute specifying the user's provider
GENERIC_USER_ROLE_ATTRIBUTE	Attribute specifying the user's role
GENERIC_USERINFO_ENDPOINT	Endpoint to fetch user information in generic OAuth
GEMINI_API_BASE	Base URL for Gemini API. Default is https://generativelanguage.googleapis.com
GALILEO_BASE_URL	Base URL for Galileo platform
GALILEO_PASSWORD	Password for Galileo authentication
GALILEO_PROJECT_ID	Project ID for Galileo usage
GALILEO_USERNAME	Username for Galileo authentication
GITHUB_COPILOT_TOKEN_DIR	Directory to store GitHub Copilot token for github_copilot llm provider
GITHUB_COPILOT_API_KEY_FILE	File to store GitHub Copilot API key for github_copilot llm provider
GITHUB_COPILOT_ACCESS_TOKEN_FILE	File to store GitHub Copilot access token for github_copilot llm provider
GREENSCALE_API_KEY	API key for Greenscale service
GREENSCALE_ENDPOINT	Endpoint URL for Greenscale service
GRAYSWAN_API_BASE	Base URL for GraySwan API. Default is https://api.grayswan.ai
GRAYSWAN_API_KEY	API key for GraySwan Cygnal service
GOOGLE_APPLICATION_CREDENTIALS	Path to Google Cloud credentials JSON file
GOOGLE_CLIENT_ID	Client ID for Google OAuth
GOOGLE_CLIENT_SECRET	Client secret for Google OAuth
GOOGLE_KMS_RESOURCE_NAME	Name of the resource in Google KMS
GUARDRAILS_AI_API_BASE	Base URL for Guardrails AI API
HEALTH_CHECK_TIMEOUT_SECONDS	Timeout in seconds for health checks. Default is 60
HEROKU_API_BASE	Base URL for Heroku API
HEROKU_API_KEY	API key for Heroku services
HF_API_BASE	Base URL for Hugging Face API
HCP_VAULT_ADDR	Address for Hashicorp Vault Secret Manager
HCP_VAULT_CLIENT_CERT	Path to client certificate for Hashicorp Vault Secret Manager
HCP_VAULT_CLIENT_KEY	Path to client key for Hashicorp Vault Secret Manager
HCP_VAULT_NAMESPACE	Namespace for Hashicorp Vault Secret Manager
HCP_VAULT_TOKEN	Token for Hashicorp Vault Secret Manager
HCP_VAULT_CERT_ROLE	Role for Hashicorp Vault Secret Manager Auth
HELICONE_API_KEY	API key for Helicone service
HELICONE_API_BASE	Base URL for Helicone service, defaults to https://api.helicone.ai
HOSTNAME	Hostname for the server, this will be emitted to datadog logs
HOURS_IN_A_DAY	Hours in a day for calculation purposes. Default is 24
HUGGINGFACE_API_BASE	Base URL for Hugging Face API
HUGGINGFACE_API_KEY	API key for Hugging Face API
HUMANLOOP_PROMPT_CACHE_TTL_SECONDS	Time-to-live in seconds for cached prompts in Humanloop. Default is 60
IAM_TOKEN_DB_AUTH	IAM token for database authentication
IBM_GUARDRAILS_API_BASE	Base URL for IBM Guardrails API
IBM_GUARDRAILS_AUTH_TOKEN	Authorization bearer token for IBM Guardrails API
INITIAL_RETRY_DELAY	Initial delay in seconds for retrying requests. Default is 0.5
JITTER	Jitter factor for retry delay calculations. Default is 0.75
JSON_LOGS	Enable JSON formatted logging
JWT_AUDIENCE	Expected audience for JWT tokens
JWT_PUBLIC_KEY_URL	URL to fetch public key for JWT verification
LAGO_API_BASE	Base URL for Lago API
LAGO_API_CHARGE_BY	Parameter to determine charge basis in Lago
LAGO_API_EVENT_CODE	Event code for Lago API events
LAGO_API_KEY	API key for accessing Lago services
LANGFUSE_DEBUG	Toggle debug mode for Langfuse
LANGFUSE_FLUSH_INTERVAL	Interval for flushing Langfuse logs
LANGFUSE_TRACING_ENVIRONMENT	Environment for Langfuse tracing
LANGFUSE_HOST	Host URL for Langfuse service
LANGFUSE_PUBLIC_KEY	Public key for Langfuse authentication
LANGFUSE_RELEASE	Release version of Langfuse integration
LANGFUSE_SECRET_KEY	Secret key for Langfuse authentication
LANGSMITH_API_KEY	API key for Langsmith platform
LANGSMITH_BASE_URL	Base URL for Langsmith service
LANGSMITH_BATCH_SIZE	Batch size for operations in Langsmith
LANGSMITH_DEFAULT_RUN_NAME	Default name for Langsmith run
LANGSMITH_PROJECT	Project name for Langsmith integration
LANGSMITH_SAMPLING_RATE	Sampling rate for Langsmith logging
LANGTRACE_API_KEY	API key for Langtrace service
LASSO_API_BASE	Base URL for Lasso API
LASSO_API_KEY	API key for Lasso service
LASSO_USER_ID	User ID for Lasso service
LASSO_CONVERSATION_ID	Conversation ID for Lasso service
LENGTH_OF_LITELLM_GENERATED_KEY	Length of keys generated by LiteLLM. Default is 16
LEGACY_MULTI_INSTANCE_RATE_LIMITING	Flag to enable legacy multi-instance rate limiting. Default is False
LITERAL_API_KEY	API key for Literal integration
LITERAL_API_URL	API URL for Literal service
LITERAL_BATCH_SIZE	Batch size for Literal operations
LITELLM_ANTHROPIC_DISABLE_URL_SUFFIX	Disable automatic URL suffix appending for Anthropic API base URLs. When set to true, prevents LiteLLM from automatically adding /v1/messages or /v1/complete to custom Anthropic API endpoints
LITELLM_DONT_SHOW_FEEDBACK_BOX	Flag to hide feedback box in LiteLLM UI
LITELLM_DROP_PARAMS	Parameters to drop in LiteLLM requests
LITELLM_MODIFY_PARAMS	Parameters to modify in LiteLLM requests
LITELLM_EMAIL	Email associated with LiteLLM account
LITELLM_GLOBAL_MAX_PARALLEL_REQUEST_RETRIES	Maximum retries for parallel requests in LiteLLM
LITELLM_GLOBAL_MAX_PARALLEL_REQUEST_RETRY_TIMEOUT	Timeout for retries of parallel requests in LiteLLM
LITELLM_MIGRATION_DIR	Custom migrations directory for prisma migrations, used for baselining db in read-only file systems.
LITELLM_HOSTED_UI	URL of the hosted UI for LiteLLM
LITELM_ENVIRONMENT	Environment of LiteLLM Instance, used by logging services. Currently only used by DeepEval.
LITELLM_KEY_ROTATION_ENABLED	Enable auto-key rotation for LiteLLM (boolean). Default is false.
LITELLM_KEY_ROTATION_CHECK_INTERVAL_SECONDS	Interval in seconds for how often to run job that auto-rotates keys. Default is 86400 (24 hours).
LITELLM_LICENSE	License key for LiteLLM usage
LITELLM_LOCAL_MODEL_COST_MAP	Local configuration for model cost mapping in LiteLLM
LITELLM_LOG	Enable detailed logging for LiteLLM
LITELLM_LOG_FILE	File path to write LiteLLM logs to. When set, logs will be written to both console and the specified file
LITELLM_LOGGER_NAME	Name for OTEL logger
LITELLM_METER_NAME	Name for OTEL Meter
LITELLM_OTEL_INTEGRATION_ENABLE_EVENTS	Optionally enable semantic logs for OTEL
LITELLM_OTEL_INTEGRATION_ENABLE_METRICS	Optionally enable emantic metrics for OTEL
LITELLM_MASTER_KEY	Master key for proxy authentication
LITELLM_MODE	Operating mode for LiteLLM (e.g., production, development)
LITELLM_RATE_LIMIT_WINDOW_SIZE	Rate limit window size for LiteLLM. Default is 60
LITELLM_SALT_KEY	Salt key for encryption in LiteLLM
LITELLM_SSL_CIPHERS	SSL/TLS cipher configuration for faster handshakes. Controls cipher suite preferences for OpenSSL connections.
LITELLM_SECRET_AWS_KMS_LITELLM_LICENSE	AWS KMS encrypted license for LiteLLM
LITELLM_TOKEN	Access token for LiteLLM integration
LITELLM_PRINT_STANDARD_LOGGING_PAYLOAD	If true, prints the standard logging payload to the console - useful for debugging
LITELM_ENVIRONMENT	Environment for LiteLLM Instance. This is currently only logged to DeepEval to determine the environment for DeepEval integration.
LOGFIRE_TOKEN	Token for Logfire logging service
MAX_EXCEPTION_MESSAGE_LENGTH	Maximum length for exception messages. Default is 2000
MAX_STRING_LENGTH_PROMPT_IN_DB	Maximum length for strings in spend logs when sanitizing request bodies. Strings longer than this will be truncated. Default is 1000
MAX_IN_MEMORY_QUEUE_FLUSH_COUNT	Maximum count for in-memory queue flush operations. Default is 1000
MAX_LONG_SIDE_FOR_IMAGE_HIGH_RES	Maximum length for the long side of high-resolution images. Default is 2000
MAX_REDIS_BUFFER_DEQUEUE_COUNT	Maximum count for Redis buffer dequeue operations. Default is 100
MAX_SHORT_SIDE_FOR_IMAGE_HIGH_RES	Maximum length for the short side of high-resolution images. Default is 768
MAX_SIZE_IN_MEMORY_QUEUE	Maximum size for in-memory queue. Default is 10000
MAX_SIZE_PER_ITEM_IN_MEMORY_CACHE_IN_KB	Maximum size in KB for each item in memory cache. Default is 512 or 1024
MAX_SPENDLOG_ROWS_TO_QUERY	Maximum number of spend log rows to query. Default is 1,000,000
MAX_TEAM_LIST_LIMIT	Maximum number of teams to list. Default is 20
MAX_TILE_HEIGHT	Maximum height for image tiles. Default is 512
MAX_TILE_WIDTH	Maximum width for image tiles. Default is 512
MAX_TOKEN_TRIMMING_ATTEMPTS	Maximum number of attempts to trim a token message. Default is 10
MAXIMUM_TRACEBACK_LINES_TO_LOG	Maximum number of lines to log in traceback in LiteLLM Logs UI. Default is 100
MAX_RETRY_DELAY	Maximum delay in seconds for retrying requests. Default is 8.0
MAX_LANGFUSE_INITIALIZED_CLIENTS	Maximum number of Langfuse clients to initialize on proxy. Default is 20. This is set since langfuse initializes 1 thread everytime a client is initialized. We've had an incident in the past where we reached 100% cpu utilization because Langfuse was initialized several times.
MIN_NON_ZERO_TEMPERATURE	Minimum non-zero temperature value. Default is 0.0001
MINIMUM_PROMPT_CACHE_TOKEN_COUNT	Minimum token count for caching a prompt. Default is 1024
MISTRAL_API_BASE	Base URL for Mistral API. Default is https://api.mistral.ai
MISTRAL_API_KEY	API key for Mistral API
MICROSOFT_CLIENT_ID	Client ID for Microsoft services
MICROSOFT_CLIENT_SECRET	Client secret for Microsoft services
MICROSOFT_TENANT	Tenant ID for Microsoft Azure
MICROSOFT_SERVICE_PRINCIPAL_ID	Service Principal ID for Microsoft Enterprise Application. (This is an advanced feature if you want litellm to auto-assign members to Litellm Teams based on their Microsoft Entra ID Groups)
NO_DOCS	Flag to disable Swagger UI documentation
NO_REDOC	Flag to disable Redoc documentation
NO_PROXY	List of addresses to bypass proxy
NON_LLM_CONNECTION_TIMEOUT	Timeout in seconds for non-LLM service connections. Default is 15
OAUTH_TOKEN_INFO_ENDPOINT	Endpoint for OAuth token info retrieval
OPENAI_BASE_URL	Base URL for OpenAI API
OPENAI_API_BASE	Base URL for OpenAI API. Default is https://api.openai.com/
OPENAI_API_KEY	API key for OpenAI services
OPENAI_FILE_SEARCH_COST_PER_1K_CALLS	Cost per 1000 calls for OpenAI file search. Default is 0.0025
OPENAI_ORGANIZATION	Organization identifier for OpenAI
OPENID_BASE_URL	Base URL for OpenID Connect services
OPENID_CLIENT_ID	Client ID for OpenID Connect authentication
OPENID_CLIENT_SECRET	Client secret for OpenID Connect authentication
OPENMETER_API_ENDPOINT	API endpoint for OpenMeter integration
OPENMETER_API_KEY	API key for OpenMeter services
OPENMETER_EVENT_TYPE	Type of events sent to OpenMeter
OTEL_ENDPOINT	OpenTelemetry endpoint for traces
OTEL_EXPORTER_OTLP_ENDPOINT	OpenTelemetry endpoint for traces
OTEL_ENVIRONMENT_NAME	Environment name for OpenTelemetry
OTEL_EXPORTER	Exporter type for OpenTelemetry
OTEL_EXPORTER_OTLP_PROTOCOL	Exporter type for OpenTelemetry
OTEL_HEADERS	Headers for OpenTelemetry requests
OTEL_MODEL_ID	Model ID for OpenTelemetry tracing
OTEL_EXPORTER_OTLP_HEADERS	Headers for OpenTelemetry requests
OTEL_SERVICE_NAME	Service name identifier for OpenTelemetry
OTEL_TRACER_NAME	Tracer name for OpenTelemetry tracing
PAGERDUTY_API_KEY	API key for PagerDuty Alerting
PANW_PRISMA_AIRS_API_KEY	API key for PANW Prisma AIRS service
PANW_PRISMA_AIRS_API_BASE	Base URL for PANW Prisma AIRS service
PHOENIX_API_KEY	API key for Arize Phoenix
PHOENIX_COLLECTOR_ENDPOINT	API endpoint for Arize Phoenix
PHOENIX_COLLECTOR_HTTP_ENDPOINT	API http endpoint for Arize Phoenix
PILLAR_API_BASE	Base URL for Pillar API Guardrails
PILLAR_API_KEY	API key for Pillar API Guardrails
PILLAR_ON_FLAGGED_ACTION	Action to take when content is flagged ('block' or 'monitor')
POD_NAME	Pod name for the server, this will be emitted to datadog logs as POD_NAME
POSTHOG_API_KEY	API key for PostHog analytics integration
POSTHOG_API_URL	Base URL for PostHog API (defaults to https://us.i.posthog.com)
PREDIBASE_API_BASE	Base URL for Predibase API
PRESIDIO_ANALYZER_API_BASE	Base URL for Presidio Analyzer service
PRESIDIO_ANONYMIZER_API_BASE	Base URL for Presidio Anonymizer service
PROMETHEUS_BUDGET_METRICS_REFRESH_INTERVAL_MINUTES	Refresh interval in minutes for Prometheus budget metrics. Default is 5
PROMETHEUS_FALLBACK_STATS_SEND_TIME_HOURS	Fallback time in hours for sending stats to Prometheus. Default is 9
PROMETHEUS_URL	URL for Prometheus service
PROMPTLAYER_API_KEY	API key for PromptLayer integration
PROXY_ADMIN_ID	Admin identifier for proxy server
PROXY_BASE_URL	Base URL for proxy service
PROXY_BATCH_WRITE_AT	Time in seconds to wait before batch writing spend logs to the database. Default is 30
PROXY_BATCH_POLLING_INTERVAL	Time in seconds to wait before polling a batch, to check if it's completed. Default is 6000s (1 hour)
PROXY_BUDGET_RESCHEDULER_MAX_TIME	Maximum time in seconds to wait before checking database for budget resets. Default is 605
PROXY_BUDGET_RESCHEDULER_MIN_TIME	Minimum time in seconds to wait before checking database for budget resets. Default is 597
PYTHON_GC_THRESHOLD	GC thresholds ('gen0,gen1,gen2', e.g. '1000,50,50'); defaults to Python’s values.
PROXY_LOGOUT_URL	URL for logging out of the proxy service
QDRANT_API_BASE	Base URL for Qdrant API
QDRANT_API_KEY	API key for Qdrant service
QDRANT_SCALAR_QUANTILE	Scalar quantile for Qdrant operations. Default is 0.99
QDRANT_URL	Connection URL for Qdrant database
QDRANT_VECTOR_SIZE	Vector size for Qdrant operations. Default is 1536
REDIS_CONNECTION_POOL_TIMEOUT	Timeout in seconds for Redis connection pool. Default is 5
REDIS_HOST	Hostname for Redis server
REDIS_PASSWORD	Password for Redis service
REDIS_PORT	Port number for Redis server
REDIS_SOCKET_TIMEOUT	Timeout in seconds for Redis socket operations. Default is 0.1
REDIS_GCP_SERVICE_ACCOUNT	GCP service account for IAM authentication with Redis. Format: "projects/-/serviceAccounts/name@project.iam.gserviceaccount.com"
REDIS_GCP_SSL_CA_CERTS	Path to SSL CA certificate file for secure GCP Memorystore Redis connections
REDOC_URL	The path to the Redoc Fast API documentation. By default this is "/redoc"
REPEATED_STREAMING_CHUNK_LIMIT	Limit for repeated streaming chunks to detect looping. Default is 100
REALTIME_WEBSOCKET_MAX_MESSAGE_SIZE_BYTES	Maximum size in bytes for WebSocket messages in realtime connections. Default is None.
REPLICATE_MODEL_NAME_WITH_ID_LENGTH	Length of Replicate model names with ID. Default is 64
REPLICATE_POLLING_DELAY_SECONDS	Delay in seconds for Replicate polling operations. Default is 0.5
REQUEST_TIMEOUT	Timeout in seconds for requests. Default is 6000
ROUTER_MAX_FALLBACKS	Maximum number of fallbacks for router. Default is 5
SECRET_MANAGER_REFRESH_INTERVAL	Refresh interval in seconds for secret manager. Default is 86400 (24 hours)
SEPARATE_HEALTH_APP	If set to '1', runs health endpoints on a separate ASGI app and port. Default: '0'.
SEPARATE_HEALTH_PORT	Port for the separate health endpoints app. Only used if SEPARATE_HEALTH_APP=1. Default: 4001.
SERVER_ROOT_PATH	Root path for the server application
SET_VERBOSE	Flag to enable verbose logging
SINGLE_DEPLOYMENT_TRAFFIC_FAILURE_THRESHOLD	Minimum number of requests to consider "reasonable traffic" for single-deployment cooldown logic. Default is 1000
SLACK_DAILY_REPORT_FREQUENCY	Frequency of daily Slack reports (e.g., daily, weekly)
SLACK_WEBHOOK_URL	Webhook URL for Slack integration
SMTP_HOST	Hostname for the SMTP server
SMTP_PASSWORD	Password for SMTP authentication (do not set if SMTP does not require auth)
SMTP_PORT	Port number for SMTP server
SMTP_SENDER_EMAIL	Email address used as the sender in SMTP transactions
SMTP_SENDER_LOGO	Logo used in emails sent via SMTP
SMTP_TLS	Flag to enable or disable TLS for SMTP connections
SMTP_USERNAME	Username for SMTP authentication (do not set if SMTP does not require auth)
SPEND_LOGS_URL	URL for retrieving spend logs
SPEND_LOG_CLEANUP_BATCH_SIZE	Number of logs deleted per batch during cleanup. Default is 1000
SSL_CERTIFICATE	Path to the SSL certificate file
SSL_ECDH_CURVE	ECDH curve for SSL/TLS key exchange (e.g., 'X25519' to disable PQC).
SSL_SECURITY_LEVEL	[BETA] Security level for SSL/TLS connections. E.g. DEFAULT@SECLEVEL=1
SSL_VERIFY	Flag to enable or disable SSL certificate verification
SSL_CERT_FILE	Path to the SSL certificate file for custom CA bundle
SUPABASE_KEY	API key for Supabase service
SUPABASE_URL	Base URL for Supabase instance
STORE_MODEL_IN_DB	If true, enables storing model + credential information in the DB.
SYSTEM_MESSAGE_TOKEN_COUNT	Token count for system messages. Default is 4
TEST_EMAIL_ADDRESS	Email address used for testing purposes
TOGETHER_AI_4_B	Size parameter for Together AI 4B model. Default is 4
TOGETHER_AI_8_B	Size parameter for Together AI 8B model. Default is 8
TOGETHER_AI_21_B	Size parameter for Together AI 21B model. Default is 21
TOGETHER_AI_41_B	Size parameter for Together AI 41B model. Default is 41
TOGETHER_AI_80_B	Size parameter for Together AI 80B model. Default is 80
TOGETHER_AI_110_B	Size parameter for Together AI 110B model. Default is 110
TOGETHER_AI_EMBEDDING_150_M	Size parameter for Together AI 150M embedding model. Default is 150
TOGETHER_AI_EMBEDDING_350_M	Size parameter for Together AI 350M embedding model. Default is 350
TOOL_CHOICE_OBJECT_TOKEN_COUNT	Token count for tool choice objects. Default is 4
UI_LOGO_PATH	Path to the logo image used in the UI
UI_PASSWORD	Password for accessing the UI
UI_USERNAME	Username for accessing the UI
UPSTREAM_LANGFUSE_DEBUG	Flag to enable debugging for upstream Langfuse
UPSTREAM_LANGFUSE_HOST	Host URL for upstream Langfuse service
UPSTREAM_LANGFUSE_PUBLIC_KEY	Public key for upstream Langfuse authentication
UPSTREAM_LANGFUSE_RELEASE	Release version identifier for upstream Langfuse
UPSTREAM_LANGFUSE_SECRET_KEY	Secret key for upstream Langfuse authentication
USE_AWS_KMS	Flag to enable AWS Key Management Service for encryption
USE_PRISMA_MIGRATE	Flag to use prisma migrate instead of prisma db push. Recommended for production environments.
WEBHOOK_URL	URL for receiving webhooks from external services
SPEND_LOG_RUN_LOOPS	Constant for setting how many runs of 1000 batch deletes should spend_log_cleanup task run
SPEND_LOG_CLEANUP_BATCH_SIZE	Number of logs deleted per batch during cleanup. Default is 1000
COROUTINE_CHECKER_MAX_SIZE_IN_MEMORY	Maximum size for CoroutineChecker in-memory cache. Default is 1000
DEFAULT_SHARED_HEALTH_CHECK_TTL	Time-to-live in seconds for cached health check results in shared health check mode. Default is 300 (5 minutes)
DEFAULT_SHARED_HEALTH_CHECK_LOCK_TTL	Time-to-live in seconds for health check lock in shared health check mode. Default is 60 (1 minute)