PayAI x402 Facilitator

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How to connect

Add it to any MCP client that supports remote servers.

{
  "mcpServers": {
    "payai-x402-facilitator": {
      "type": "http",
      "url": "https://facilitator.payai.network/mcp"
    }
  }
}

5 tools

• get_supported

  Returns the payment networks, schemes, assets, and facilitator addresses currently supported by PayAI. Use it before constructing payment requirements when you need live capability data.

• verify_payment

  Verifies a signed x402 payment payload against the supplied payment requirements. It checks validity but moves no funds.

• settle_payment

  Broadcasts the payment on-chain and moves real funds; it is idempotent per signed payload, so resubmitting the identical payload returns the recorded outcome. Treat errorReason "settlement_pending" as unresolved and call again with the identical arguments to poll.

• list_discovery_resources

  Lists x402-payable resources published in the PayAI Bazaar catalog. Use limit and offset to page through APIs, MCP tools, and agent services available for discovery.

• get_discovery_stats

  Returns aggregate statistics for the PayAI Bazaar catalog and its settlement activity. Use it for a compact view of catalog size and payment volume rather than individual resources.

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