Letter AI

Overview

Letter AI is a Model Context Protocol (MCP) server: Search and act on Letter AI sales enablement content, deals, and call recordings. Because it speaks the Model Context Protocol, AI assistants can use Letter AI as a set of callable tools instead of you copy-pasting between apps.

It's a hosted (remote) server — point your client at https://api.letter.ai/v1/mcp and you're connected, with nothing to install locally. The current release is v1.13.0.

On mcp.site, Letter AI sits in the AI & Agents category. Any MCP client can use it — Claude Desktop, Claude Code, Cursor, VS Code, Windsurf, Zed among them — via the install snippets below. If you maintain Letter AI for tractatus-ai, claim this listing to verify ownership, earn the Verified badge, and keep the details current.

Installation

Settings → Connectors → Add custom connector
Name: Letter AI
URL:  https://api.letter.ai/v1/mcp