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Windsurf 402MCP.org — HTTP 402 & Agent Payment Registry Resource/thirdweb-x402

How to: Windsurf 402MCP.org — HTTP 402 & Agent Payment Registry thirdweb-x402

client:Windsurf transport:streamable-http resource:thirdweb-x402

Add 402MCP.org — HTTP 402 & Agent Payment Registry to Windsurf

  1. 01

    Open ~/.codeium/windsurf/mcp_config.json and merge this in. Keep any servers already there. 

{
  "mcpServers": {
    "registry": {
      "serverUrl": "https://402mcp.org/api/v1/mcp"
    }
  }
}
  1. 02

    Save the file and restart Windsurf.

  2. 03

    thirdweb-x402 is surfaced wherever your client lets you attach context. It is context to attach, not an action to run.

  3. 04

    If it does not appear, check that 402MCP.org — HTTP 402 & Agent Payment Registry is connected and that you are looking at its resources rather than its tools.

Global only — Windsurf has no per-project MCP config. Refresh Cascade after saving. Windsurf docs

Set these first

402MCP.org — HTTP 402 & Agent Payment Registry will not start until these are set, so it never reaches Windsurf.

  • MCP_402_OFFLINE

Same resource, other clients

Read from the server itself, by connecting to it and calling resources/list on 16 October 2026. A listing does not declare its resources, so asking is the only way to know them, and this is what the server actually offers rather than what its listing claims. Names only are stored; connect the server for each resource's type and contents.

402MCP.org — HTTP 402 & Agent Payment Registry MCP server