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Letterly

Letterly

Remote
letterly.appProductivity0Updated 5d ago
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About Letterly

Letterly is a hosted MCP server for connecting Letterly voice notes to AI chat clients. It lets users search and manage notes, rewrite or translate them, and maintain custom rewrite prompts.

Key features

  1. 01Search and read voice notes
  2. 02Create, edit and delete notes
  3. 03Rewrite notes in another style
  4. 04Translate voice notes
  5. 05Manage custom rewrite prompts

Use cases

  1. 01Find a note from a previous week
  2. 02Turn a voice note into a short email
  3. 03Translate a note into another language

MCP support

Provides note search, editing, rewriting, translation and prompt-management tools to MCP clients through a hosted Streamable HTTP server. Connection uses OAuth sign-in with a Letterly account.

Configuration

Remote servers need no local install. Pick your client, then copy the config or install in one click.

Endpointhttps://mcp.letterly.app/mcp
Copy install command
Claude CodeTerminal
Cursor.cursor/mcp.json
VS Code.vscode/mcp.json
Claude Desktopclaude_desktop_config.json
Windsurf~/.codeium/windsurf/mcp_config.json

Run commands in a terminal; paste JSON into the client’s MCP config and restart. Servers that need sign-in will prompt on first connect.

Tools

Details

From the project README

Letterly MCP Server

Dictate anywhere with Letterly, then find, rewrite and translate your voice notes in your AI chat.

This repository hosts documentation only. Letterly MCP is a hosted remote server, so there is nothing to install or run locally.

What it does

Connect your Letterly account to an AI assistant (GitHub Copilot, Claude, ChatGPT, Cursor and others) and ask it to:

  • search and read your voice notes
  • create, edit and delete notes
  • rewrite a note in another style or translate it
  • manage your custom rewrite prompts

Setup

  • Server URL: https://mcp.letterly.app/mcp
  • Transport: Streamable HTTP
  • Sign-in: OAuth with your Letterly account. You'll be asked to sign in the first time you connect.
VS Code / GitHub Copilot

Add this to .vscode/mcp.json in your workspace (or to your user MCP configuration):

{
  "servers": {
    "letterly": {
      "type": "http",
      "url": "https://mcp.letterly.app/mcp"
    }
  }
}

Then start the server from the MCP view and sign in to Letterly when prompted.

Other clients

In Claude, ChatGPT, Cursor or any other MCP client, add a custom (remote) MCP server with the URL above and sign in when asked.

Example prompts

  • "Find my notes about the marketing plan from last week"
  • "Rewrite my latest note as a short email"
  • "Translate my note about the trip into German"

Links

Comments

Markdown supported

New to MCP?

From what the protocol is to installing your first server, these answers cover most first questions.

An open protocol that defines how AI applications connect to external tools and data in a uniform way. Clients talk to the model; MCP servers provide tools, resources and prompt templates. They exchange standard messages, so one server can be reused by many clients.