API key or OAuth

Send email from Cursor

Email tools in the editor where you are writing the app that sends them.

Remote server, nothing to install · config in .cursor/mcp.json or ~/.cursor/mcp.json

Setup

Add the server

{
  "mcpServers": {
    "sending": {
      "url": "https://sending.dev/api/mcp",
      "headers": { "Authorization": "Bearer sk_your_api_key" }
    }
  }
}

Create the API key under Settings › API Keys. The plaintext token is shown once, at creation.

Check it works

Settings › MCP: the server shows green, with the tools listed under it.

What it can do once connected

71 tools: send transactional email and campaigns, manage contacts and lists, build and activate automations, run an inbox that receives and replies, and read back why a message never went out. All of it inside verified domains, suppression, idempotency, spend caps and an audit log, enforced on our servers rather than in the prompt.

All 71 tools · MCP docs

Other clients

Claude Code

Send email from the terminal, inside the session you are already in.

Claude Desktop

Give Claude an email stack without pasting a secret anywhere.

claude.ai

The same connector, in the browser.

ChatGPT

Custom connectors, and the API path where a key still works.

VS Code

GitHub Copilot with a mailer attached, and the key never committed.

Windsurf

Through the mcp-remote bridge, because Windsurf speaks stdio.