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The Bazaar is StellarX402’s discovery layer. It exists so that agents can find paid endpoints without a human wiring URLs in by hand. This page is the map. The pages after it are the details.

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The pieces

  • Automatic cataloging. Any endpoint that speaks x402 through this facilitator gets indexed. See Automatic Cataloging.
  • Discovery metadata. Sellers describe what their endpoint does. That description is what search matches on. See Declaring Discovery Metadata.
  • Search & ranking. Textual relevance, price, and recent activity combine into a rank. See Search & Ranking.
  • Filters. Structured filters on network, price, asset, and capability. See Discovery Filters.
  • MCP tools. MCP tool schemas are cataloged alongside HTTP endpoints. See Cataloging MCP Tools.
  • Route template & catalog integrity. How dynamic routes stay uniquely addressable. See Route Template & Catalog Integrity.

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The two endpoints

All discovery goes through two HTTP endpoints on the facilitator: Both return the same listing shape. Use /search when you have a query. Use /resources when you have filters.

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Bazaar guarantees (and non-guarantees)

  • Eventually consistent. New listings appear within seconds of the first 402. Removed listings drop from ranking within minutes.
  • No accounts. No seller registration, no reviews, no editorial control. If your endpoint speaks x402 through the facilitator, it is in.
  • Not authoritative. The catalog reflects what sellers declare. Buyers still verify prices in the 402 at request time.