lookup_postal_code — Postal Lookup MCP MCP Tool Read-only
lookup_postal_code
(lookup postal code) is one of 1 tool on the
Postal Lookup MCP
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call lookup_postal_code from your client
- Claude Code Postal Lookup MCP lookup_postal_code run in your project directory
- Claude Desktop Postal Lookup MCP lookup_postal_code ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor Postal Lookup MCP lookup_postal_code ~/.cursor/mcp.json
- VS Code Postal Lookup MCP lookup_postal_code .vscode/mcp.json
- Zed Postal Lookup MCP lookup_postal_code ~/.config/zed/settings.json
- Windsurf Postal Lookup MCP lookup_postal_code ~/.codeium/windsurf/mcp_config.json
- Cline Postal Lookup MCP lookup_postal_code ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI Postal Lookup MCP lookup_postal_code ~/.gemini/settings.json
- Grok Postal Lookup MCP lookup_postal_code .mcp.json (in your project root)
- ChatGPT Postal Lookup MCP lookup_postal_code Settings → Connectors → Advanced → Developer mode
- Claude.ai Postal Lookup MCP lookup_postal_code Settings → Connectors → Add custom connector
- LangChain Postal Lookup MCP lookup_postal_code pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http postal-lookup-mcp https://ads.getlulu.dev/postal/mcp
This list was read from the server itself, by connecting to it and calling tools/list on 24 September 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.