OpenAI Pass-through
pass-through

Openai Proxy Route

Changed on

Pass-through endpoint for OpenAI API calls.

Available on both routes:

  • /openai/{endpoint:path} - Standard OpenAI passthrough route
  • /openai_passthrough/{endpoint:path} - Dedicated passthrough route (recommended for Responses API)

Use /openai_passthrough/* when you need guaranteed passthrough to OpenAI without conflicts with LiteLLM's native implementations (e.g., for the Responses API at /v1/responses).

Examples: Standard route: - /openai/v1/chat/completions - /openai/v1/assistants - /openai/v1/threads

Dedicated passthrough (for Responses API):
- /openai_passthrough/v1/responses
- /openai_passthrough/v1/responses/{response_id}
- /openai_passthrough/v1/responses/{response_id}/input_items

Docs

put/openai_passthrough/{endpoint}

Request

  • Base URL: https://api.sea-lion.ai (the document declares no server; this is the origin it was published from)
  • URL: https://api.sea-lion.ai/openai_passthrough/{endpoint}
  • Auth: one of:
    • API key in header x-litellm-api-key
    • API key in header x-litellm-api-key
    • API key in header x-litellm-api-key
    • API key in header x-litellm-api-key
    • API key in header x-litellm-api-key
    • API key in header x-litellm-api-key

Path parameters

endpointstring required

Response

Successful Response

unknown required

Changes

  • d1b9f03b2735Revision changes
    • info

      api operation id openai_proxy_route_openai_passthrough__endpoint__delete removed and replaced with openai_proxy_route_openai_passthrough__endpoint__put

  • 919e82efe5bbRevision changes
    • info

      api operation id openai_proxy_route_openai_passthrough__endpoint__put removed and replaced with openai_proxy_route_openai_passthrough__endpoint__delete