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Cursor x402 checks create_b2b_invoice

How to: Cursor x402 checks create_b2b_invoice

client:Cursor transport:streamable-http tool:create_b2b_invoice

Add x402 checks to Cursor

  1. 01

    Open ~/.cursor/mcp.json and merge this in. Keep any servers already there.

{
  "mcpServers": {
    "x402-checks": {
      "url": "https://api.code402.dev/mcp"
    }
  }
}
  1. 02

    Save the file and restart Cursor.

  2. 03

    Ask for something create_b2b_invoice does. Cursor lists the server's tools on connect and calls create_b2b_invoice itself — you do not invoke it by name.

  3. 04

    If nothing happens, check the server is running and that x402 checks's identifier in your config matches the one above exactly.

Use .cursor/mcp.json in a project root instead to scope it to that project. Cursor merges both. Cursor docs

Same tool, other clients

This list was read from the server itself, by connecting to it and calling tools/list on 5 November 2026. It is what the server actually exposes, not what its listing claims.

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.