API reference

Concise, task-focused reference for all public endpoints.

• OpenAI Chat Completions — streaming SSE and tool calling
• OpenAI Responses — non-streaming and streaming with named events
• Anthropic Messages — Claude-compatible messages and SSE sequences
• Batches, Files, Webhooks, Tokenize

Start here

• OpenAI Chat: /api-reference/openai-chat
• OpenAI Responses: /api-reference/openai-responses
• Anthropic Messages: /api-reference/anthropic-messages

Also see

• Concepts you’ll reference often: /concepts
• Streaming events by surface: /events