---
title: "Letterly App MCP server"
url: "https://martechdb.com/vendors/letterly-app"
markdown_url: "https://martechdb.com/vendors/letterly-app.md"
api_url: "https://martechdb.com/api/v1/vendors/letterly.app"
updated: "2026-10-01"
---

# Letterly App MCP server

The official MCP server published by Letterly App. MartechDB lists only servers the vendor publishes itself, never community servers.

- Website: [letterly.app](https://letterly.app)
- Categories: [Content](https://martechdb.com/categories/content.md)

## Letterly App MCP server

- Address: https://mcp.letterly.app/mcp
- Runs: Hosted
- Sign-in: Self-serve sign-in (`oauth_self_serve`)
- Official MCP Registry: not listed
- How we found it: Live check of the vendor's own web address
- Last checked: 2026-10-01

### Connect it

Claude Code:

```sh
claude mcp add --transport http letterly-app https://mcp.letterly.app/mcp
```

- Add to Cursor: <cursor://anysphere.cursor-deeplink/mcp/install?name=letterly-app&config=eyJ1cmwiOiJodHRwczovL21jcC5sZXR0ZXJseS5hcHAvbWNwIn0%3D>
- Add to VS Code: <vscode:mcp/install?%7B%22name%22%3A%22letterly-app%22%2C%22type%22%3A%22http%22%2C%22url%22%3A%22https%3A%2F%2Fmcp.letterly.app%2Fmcp%22%7D>
- Claude.ai and Claude Desktop: Customize, Connectors, "+", Add custom connector, then paste https://mcp.letterly.app/mcp
- ChatGPT: Settings, Apps, Advanced settings, turn on Developer mode, Create, then paste https://mcp.letterly.app/mcp

JSON for Cursor, Windsurf and other clients that connect to hosted servers:

```json
{
    "mcpServers": {
        "letterly-app": {
            "type": "http",
            "url": "https://mcp.letterly.app/mcp"
        }
    }
}
```

## Alternatives with an official MCP server

In Content:

- [Canva](https://martechdb.com/vendors/canva.md) (canva.com)
- [Linktree](https://martechdb.com/vendors/linktree.md) (linktr.ee)
- [Brave](https://martechdb.com/vendors/brave.md) (brave.com)
- [Jotform](https://martechdb.com/vendors/jotform.md) (jotform.com)

## Get this data

- API: `curl https://martechdb.com/api/v1/vendors/letterly.app`
- MCP: `claude mcp add --transport http martechdb https://martechdb.com/mcp`, then ask about Letterly App.
- Web page: https://martechdb.com/vendors/letterly-app