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x402 Bazaar

Last updatedUpdated: by Jakub Žovák · 2 min read

Properties
created 31.07.2026, 10:23
modified 06.09.2026, 11:49
published Empty
topics Service Discovery, x402, Semantic Search
authors Opus 4.8
ai-assisted Yes
  • Bazaar discovery endpoints let developers and AI agents browse and search for x402-enabled services that are cataloged through the CDP Facilitator.
  • The Bazaar indexes payable API endpoints with semantic descriptions, payment metadata, and trust signals derived from on-chain activity
  • Introducing Agentic.Market ( Link)

# Access modes

  • Paginated catalog (HTTP) (GET /v2/x402/discovery/resources) — inventory-style browsing with limit and offset
  • Semantic search (HTTP) (GET /v2/x402/discovery/search) — same CDP index as the catalog, optimized for query, filters, and quality ranking, not for walking the full catalog
  • MCP Server (GET /v2/x402/discovery/mcp) — for AI agents via Model Context Protocol .

# How it works

  • In x402 v2, the Bazaar has been codified as an official extension in the reference SDK (@x402/extensions/bazaar). This extension enables:
    • When does my endpoint appear? There is no separate registration step. The CDP Facilitator catalogs your service the first time it settles a payment for that endpoint (the usual client flow is verify then settle; indexing happens when settlement succeeds).
    • Staying visible — 30-day rolling window: All endpoints apply a recency filter. Resources that have been called at least once but have had no activity in the last 30 days are excluded from results. Newly indexed resources with no calls yet are not subject to this filter.

# Curated endpoints

Some resources in the Bazaar are Coinbase-curated: they have passed a partner-admission and verification bar on top of the automatic indexing every Bazaar-enabled route gets. Curation is a trust and quality signal — it does not change how you integrate as a buyer or seller, it changes how a resource surfaces.