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Astrolabe exposes a single OpenAI-compatible endpoint:
  • POST /v1/chat/completions
It accepts standard chat completion payloads and forwards them to OpenRouter after model-tier routing.

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Authentication

If ASTROLABE_API_KEY is configured, send one of:
  • Authorization: Bearer <ASTROLABE_API_KEY>
  • x-api-key: <ASTROLABE_API_KEY>
If ASTROLABE_API_KEY is empty, requests are accepted without inbound auth.

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Streaming behavior

  • Default: streaming (stream omitted or true)
  • Non-streaming: send stream: false for JSON response + self-check/escalation flow