Astra-api
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Protocol compatibility

Endpoints for the OpenAI, Claude and Gemini protocols

This site speaks several protocols natively and one key works for all of them. Each model's detail page lists the endpoints it supports.

  1. OpenAI Chat Completions: POST /v1/chat/completions
  2. OpenAI Responses: POST /v1/responses
  3. Anthropic Messages: POST /v1/messages (x-api-key or Authorization header)
  4. Gemini: POST /v1beta/models/{model}:generateContent
  5. Images: POST /v1/images/generations; embeddings: POST /v1/embeddings

OpenAI-style clients usually take https://17astra.com/v1; Claude and Gemini clients add the version path themselves, so use https://17astra.com.