check_payment_proof — x402 Doctor MCP Tool Read-only
check_payment_proof
(check payment proof) is one of 15 tools on the
x402 Doctor
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call check_payment_proof from your client
- Claude Code x402 Doctor check_payment_proof run in your project directory
- Claude Desktop x402 Doctor check_payment_proof ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor x402 Doctor check_payment_proof ~/.cursor/mcp.json
- VS Code x402 Doctor check_payment_proof .vscode/mcp.json
- Zed x402 Doctor check_payment_proof ~/.config/zed/settings.json
- Windsurf x402 Doctor check_payment_proof ~/.codeium/windsurf/mcp_config.json
- Cline x402 Doctor check_payment_proof ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI x402 Doctor check_payment_proof ~/.gemini/settings.json
- Grok x402 Doctor check_payment_proof .mcp.json (in your project root)
- ChatGPT x402 Doctor check_payment_proof Settings → Connectors → Advanced → Developer mode
- Claude.ai x402 Doctor check_payment_proof Settings → Connectors → Add custom connector
- LangChain x402 Doctor check_payment_proof pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http x402-doctor https://x402-doctor.fizzl.eu/mcpOther tools on this server
This list was read from the server itself, by connecting to it and calling tools/list on 14 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.