Letter AI MCP Server
io.github.tractatus-ai/letterv1.13.0
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Maintained51d ago
Install Letter AI MCP server
Install in Claude Code
claude mcp add --transport http letter https://api.letter.ai/v1/mcpInstall in Cursor
{
"mcpServers": {
"letter": {
"url": "https://api.letter.ai/v1/mcp"
}
}
}Install in Claude Desktop
{
"mcpServers": {
"letter": {
"command": "npx",
"args": [
"-y",
"mcp-remote",
"https://api.letter.ai/v1/mcp"
]
}
}
}Or add it as a custom connector under Settings → Connectors. The config above bridges via mcp-remote.
Install in VS Code
{
"servers": {
"letter": {
"type": "http",
"url": "https://api.letter.ai/v1/mcp"
}
}
}Install in Windsurf
{
"mcpServers": {
"letter": {
"serverUrl": "https://api.letter.ai/v1/mcp"
}
}
}Remote endpoints
- streamable-http
https://api.letter.ai/v1/mcp
Freshness
Maintained — last maintenance signal 51d ago. The newest of the signals below sets the band.
Last commit (default branch)
no data · GitHub
Latest release
no data · GitHub
Package published
no data · npm/PyPI
Registry entry updated
2026-08-20 · 51d ago · official registry · v1.13.0
FAQ
›How do I install the Letter AI MCP server in Claude Code?
Run: claude mcp add --transport http letter https://api.letter.ai/v1/mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.
›Does Letter AI require an API key?
No required environment variables are declared in its published metadata.
›Can I use Letter AI as a remote (hosted) MCP server?
Yes. It is a hosted MCP server; connect to its URL with any client that supports remote MCP.
›Is Letter AI in the official MCP registry?
Yes, as io.github.tractatus-ai/letter.