mcp-x402

About mcp-x402

Use mcp-x402 with your agent

claude mcp add mcp-x402 -- npx -y @codespar/mcp-x402

{
  "mcpServers": {
    "mcp-x402": {
      "command": "npx",
      "args": [
        "-y",
        "@codespar/mcp-x402"
      ]
    }
  }
}

Frequently asked questions

What is mcp-x402?

mcp-x402 is an MCP (Model Context Protocol) server by codespar in the Finance category. MCP server for x402 — HTTP-native micropayments protocol by Coinbase (USDC on Base/Solana)

How do I connect mcp-x402 to Claude, Cursor, or another MCP client?

Install mcp-x402 from its npm package (@codespar/mcp-x402) and register it under "mcpServers" in your client's MCP configuration — for example claude_desktop_config.json or Cursor's mcp.json — then restart the client.

Is mcp-x402 open source?

Yes — the source code is public at github.com/codespar/mcp-dev-brasil, with 252 GitHub stars.

Can AI agents pay to use mcp-x402?

Not yet through Loomal — mcp-x402 is listed as a free directory entry. If its maintainer verifies ownership, they can set per-call USDC pricing that agents pay over x402, with settlement on Base.