preflight_x402_endpoint — ProofCheck MCP Tool
preflight_x402_endpoint
(preflight x402 endpoint) is one of 5 tools on the
ProofCheck
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call preflight_x402_endpoint from your client
- Claude Code ProofCheck preflight_x402_endpoint run in your project directory
- Claude Desktop ProofCheck preflight_x402_endpoint ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor ProofCheck preflight_x402_endpoint ~/.cursor/mcp.json
- VS Code ProofCheck preflight_x402_endpoint .vscode/mcp.json
- Zed ProofCheck preflight_x402_endpoint ~/.config/zed/settings.json
- Windsurf ProofCheck preflight_x402_endpoint ~/.codeium/windsurf/mcp_config.json
- Cline ProofCheck preflight_x402_endpoint ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI ProofCheck preflight_x402_endpoint ~/.gemini/settings.json
- Grok ProofCheck preflight_x402_endpoint .mcp.json (in your project root)
- ChatGPT ProofCheck preflight_x402_endpoint Settings → Connectors → Advanced → Developer mode
- Claude.ai ProofCheck preflight_x402_endpoint Settings → Connectors → Add custom connector
- LangChain ProofCheck preflight_x402_endpoint pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http proofcheck https://proofcheck.something-agent.workers.dev/mcpOther tools on this server
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.