Letter AI

Connect Remote server

claude mcp add --transport http letter https://api.letter.ai/v1/mcp

{
  "mcpServers": {
    "letter": {
      "url": "https://api.letter.ai/v1/mcp"
    }
  }
}

{
  "servers": {
    "letter": {
      "type": "http",
      "url": "https://api.letter.ai/v1/mcp"
    }
  }
}

Settings > Connectors > Add custom connector
URL: https://api.letter.ai/v1/mcp

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