OpenAI

OpenAI Chat Completions API

Given a list of messages comprising a conversation, the model will return a response.

Documentation GitHub OpenAPI

Business capability

Operations 6

0 of 6 operations are conformant: apis.io called them with no credentials and the responses matched this contract; 1 more answered but could not be checked against a schema. Checked 2026-11-12. how this works · status file

GET /chat/completions List Chat Completions observed #

POST /chat/completions Create chat completion #

GET /chat/completions/{completion_id} Get chat completion #

POST /chat/completions/{completion_id} Update chat completion #

DELETE /chat/completions/{completion_id} Delete chat completion #

GET /chat/completions/{completion_id}/messages Get chat messages #

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OpenAPI Specification

openapi: 3.2.0
info:
  title: Openai Chat API
  version: 2.3.0
  contact:
    name: OpenAI Support
    url: https://help.openai.com/
  license:
    name: MIT
    identifier: MIT
  termsOfService: https://openai.com/policies/terms-of-use
  description: 'Operations tagged Chat across 2 of this provider''s published API definitions: openai-openapi-master-2026-09-23.yml, openai-openapi-master-2026-10-12.yml. Each path carries the servers of the definition it was published in.'
servers:
- url: https://api.openai.com/v1
security:
- ApiKeyAuth: []
tags:


# --- truncated at 32 KB (199 KB total) ---
# Full source: https://artifacts.apis.io/openai/openapi/openai-chat-completions-api-openapi.yml

OpenAI Chat Completions API

Operations 6

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OpenAPI Specification