list_letters — Postly MCP Tool Read-only
list_letters
(list letters) is one of 7 tools on the
Postly
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call list_letters from your client
- Claude Code Postly list_letters run in your project directory
- Claude Desktop Postly list_letters ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor Postly list_letters ~/.cursor/mcp.json
- VS Code Postly list_letters .vscode/mcp.json
- Zed Postly list_letters ~/.config/zed/settings.json
- Windsurf Postly list_letters ~/.codeium/windsurf/mcp_config.json
- Cline Postly list_letters ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI Postly list_letters ~/.gemini/settings.json
- Grok Postly list_letters .mcp.json (in your project root)
- ChatGPT Postly list_letters Settings → Connectors → Advanced → Developer mode
- Claude.ai Postly list_letters Settings → Connectors → Add custom connector
- LangChain Postly list_letters pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http postly https://postly.dk/api/public/v1/mcpOther tools on this server
This list was read from the server itself, by connecting to it and calling tools/list on 11 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.