x402 Conformance

io.github.atsp-protocol/x402-conformance

x402 payment safety checks: validate a 402 answer, prove a server never serves before settlement.

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Connect this server

Add this to your MCP client config — claude_desktop_config.json (Claude Desktop) or .cursor/mcp.json (Cursor).Suits: Claude Desktop · Cursor.

{
  "mcpServers": {
    "x402-conformance": {
      "command": "npx",
      "args": [
        "-y",
        "x402-conformance-mcp@1.6.0"
      ]
    }
  }
}

A starting point — check the repository for exact arguments and setup. Restart your client after editing the config.

Category
Developer Tools
Version
1.6.0
Registry
active
Published
10/25/2026

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