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The endpoint reference is a lookup map for the hosted API at https://api.compose.market. Compose exposes two inference surfaces:
  • Native /v1/* routes for Compose SDKs and x402-aware clients.
  • External /external/v1/* routes for OpenAI-compatible IDEs, agents, and wrappers that use a Compose Key as bearer auth.
Most other /api/*, /agent/*, and /workflow/* routes either return public catalog data or proxy paid runtime work after preparing a Compose payment.

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Auth modes

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Response conventions

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Route families

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Compatibility notes

OpenAI-style clients usually expect a single baseURL, bearer auth, OpenAI request fields, and Server-Sent Events for streaming. The external inference routes keep that shape and strip Compose receipt bodies while preserving diagnostic headers. Native routes keep x402 payment challenges, receipt headers, and Compose-specific response events.