MCP server

Letter Co

hf/hug-mono/letter_co

Checked 28 Oct 2026, 09:04 UTC · Hugging Face reports it asleep

Couont Letter

Asleep: wakes on first use

https://hug-mono-letter-co.hf.space/gradio_api/mcp/

At a glance

Type: MCP server
Publisher: Not verified
Status: Asleep: wakes on first use
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 28 Oct 2026, 09:04 UTC

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http letter-co https://hug-mono-letter-co.hf.space/gradio_api/mcp/

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.letter-co]
url = "https://hug-mono-letter-co.hf.space/gradio_api/mcp/"

Gemini CLI

{"mcpServers":{"letter-co":{"httpUrl":"https://hug-mono-letter-co.hf.space/gradio_api/mcp/"}}}

Cursor

{"mcpServers":{"letter-co":{"url":"https://hug-mono-letter-co.hf.space/gradio_api/mcp/"}}}

VS Code

{"servers":{"letter-co":{"type":"http","url":"https://hug-mono-letter-co.hf.space/gradio_api/mcp/"}}}

Antigravity

agy mcp add letter-co https://hug-mono-letter-co.hf.space/gradio_api/mcp/

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"letter-co","server_url":"https://hug-mono-letter-co.hf.space/gradio_api/mcp/","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"letter-co","server_url":"https://hug-mono-letter-co.hf.space/gradio_api/mcp/"}

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