FastMCP stdio server exposing the useSend email platform over MCP.
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# usesend-mcp [](https://github.com/gardenbaum/usesend-mcp/actions/workflows/ci.yml) [](https://pypi.org/project/usesend-mcp/) [](https://hub.docker.com/r/gardenbaum/usesend-mcp) [](LICENSE) [](https://www.python.org/downloads/) An [MCP](https://modelcontextprotocol.io) server for the [useSend](https://usesend.com) email platform (an open-source Resend/Postmark alternative). It gives any MCP client — Claude, Cursor, VS Code, Windsurf, Codex — **33 tools** for transactional email, contacts, campaigns, domains, and analytics, over stdio. ## Setup **1. Get a useSend API key** (`us_…`) from **Settings → API Keys** at [app.usesend.com](https://app.usesend.com) (or your self-hosted instance). **2. Add the server to your MCP client.** Almost every client uses the same JSON — paste this in and swap in your key: ```json { "mcpServers": { "usesend": { "command": "uvx", "args": ["usesend-mcp"], "env": { "USESEND_API_KEY": "us_your_api_key_here" } } } } ``` `uvx` (from [uv](https://docs.astral.sh/uv/)) downloads and runs the server from PyPI on demand — nothing to install first. **Where does that JSON go?** | Client | Config file | |---|---| | Claude Code | `.mcp.json` (project root) | | Claude Desktop | `claude_desktop_config.json` | | Cursor | `.cursor/mcp.json` (project) or `~/.cursor/mcp.json` | | VS Code (Cline) | `cline_mcp_settings.json` | | Windsurf | `~/.codeium/windsurf/mcp_config.json` | Prefer the command line? ```bash claude mcp add usesend --env USESEND_API_KEY=us_your_api_key_here -- uvx usesend-mcp # Claude Code codex mcp add usesend --env USE…
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