lookup_postcode — Ask Japan MCP Tool Read-only
lookup_postcode
(lookup postcode) is one of 14 tools on the
Ask Japan
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call lookup_postcode from your client
- Claude Code Ask Japan lookup_postcode run in your project directory
- Claude Desktop Ask Japan lookup_postcode ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor Ask Japan lookup_postcode ~/.cursor/mcp.json
- VS Code Ask Japan lookup_postcode .vscode/mcp.json
- Zed Ask Japan lookup_postcode ~/.config/zed/settings.json
- Windsurf Ask Japan lookup_postcode ~/.codeium/windsurf/mcp_config.json
- Cline Ask Japan lookup_postcode ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI Ask Japan lookup_postcode ~/.gemini/settings.json
- Grok Ask Japan lookup_postcode .mcp.json (in your project root)
- ChatGPT Ask Japan lookup_postcode Settings → Connectors → Advanced → Developer mode
- Claude.ai Ask Japan lookup_postcode Settings → Connectors → Add custom connector
- LangChain Ask Japan lookup_postcode pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http ask-japan https://askjapan.senpinai.com/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.