Give the Cursor agent messaging tools with SendAPI

Add SendAPI to your .cursor/mcp.json and the Composer agent gets all 18 messaging tools. Ship a feature, then have Cursor send the launch SMS or onboarding email straight from the editor.

Connect Cursor to SendAPI

{
  "mcpServers": {
    "sendapi": {
      "url": "https://sendapi.co/mcp",
      "headers": { "Authorization": "Bearer sk_live_xxxxxxxx" }
    }
  }
}

Then just ask

• "After deploying, send an SMS to the on-call number saying the release is live."
• "Email the beta list a changelog summarising this PR."
• "WhatsApp me a heads-up when the migration finishes."

What you can build with Cursor

• Release notifications — Wire the agent to text or email your team the moment a build ships.
• Prototype messaging features — Test SMS, OTP, and email flows against the real API while you build, no Postman needed.
• Inline customer comms — Draft and send a customer email from the same window you fixed their bug in.

Pairs with the SendAPI MCP server. Get your API key to start.