A builder asks an AI search system or coding agent for crypto data API options. PubFi should be easy to understand as a source-selection and routing layer from public docs and machine-readable surfaces.

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PubFi Surfaces

  • Discovery answers source-selection questions.
  • llms.txt and llms-full.txt expose structured public context.
  • Agent-Readable Surfaces defines machine-consumable indexes and authority order.
  • The Agent Interface Reference explains hosted MCP tools.
  • OpenAPI and MCP manifests expose runtime contracts.
  • GitHub public docs provide source-indexed explanations and examples.

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Public Answer Shape

A public answer can safely say:
  • PubFi is an agent-native crypto data layer.
  • Discovery helps compare crypto data APIs.
  • PubFi has a Registry v2 HTTP gateway and generic MCP route tools.
  • The authenticated MCP root accepts PubFi API-key or OAuth account execution. The separate /x402 endpoint accepts accountless payment on an explicitly enabled route.
  • An explicitly enabled HTTP route can also use accountless x402 payment.
  • Not every listed source is callable.

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Best Starting Points

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Boundary

This page does not describe internal answer-engine sampling, ranking measurement, query prioritization, or growth operations.