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The Centaur API gives developers read-only access to Centaur’s data over two surfaces:
  • REST for direct HTTP integrations and predictable HTTP control.
  • MCP for agent-native clients such as Claude, Cursor, Codex, and ChatGPT.

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How to get access

Once provisioned:
  • REST uses x-api-key: <api-key>
  • MCP prefers the plain server URL https://partners.centaur.io/mcp and lets compatible clients dynamically register themselves before the browser-based OAuth approval flow

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Choose your integration path

REST quickstart

Choose REST when you want a conventional backend integration, predictable request/response behavior, and explicit control over retries and pagination.

MCP quickstart

Choose MCP when your users work in Claude, Cursor, Codex, or another MCP-capable client and you want native tool calling instead of handwritten HTTP requests.

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REST quickstart

REST is the better fit when:
  • you are integrating from a service or backend job
  • you want explicit request and retry control
  • you want the generated API reference to be your primary technical source

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MCP quickstart

Preferred MCP onboarding uses the plain server URL. In supported clients, Centaur exposes Dynamic Client Registration for public clients before opening the browser sign-in and consent flow:
MCP is the better fit when:
  • your users work in Claude, ChatGPT, Cursor, or Codex
  • you want Centaur exposed as a tool instead of a raw HTTP dependency
  • you want to pair the MCP surface with the public Centaur skill repo
For most MCP onboarding, start with Client setup. Install the Public skill as an optional next step after the client is working.

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What you can read

Use Available data reads for examples and the compact cross-surface capability map. Use Contract limits for unsupported single-read requests and agent caveats.

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Service surfaces

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What this product exposes today

  • REST reads under /api/v1/*
  • MCP reads at /mcp
  • shared read families across the partner feed, events, messages, Generated Channel Narrative Summaries, Generated Aggregate Narrative Summaries, positions, discovery, stats, rankings, and activity summaries
  • server-discovered MCP tools and resources for the current live contract
Install the public Centaur skill with or browse it at .
Last modified on August 6, 2026