Integrate over raw HTTP
Send and track messages with fetch or curl when you’re not using the SDK.
Send a welcome email on signup
Trigger a welcome email from a Clerk webhook or an Auth.js event.
Recover failed payments & win back churn
Dunning, win-back, and trial-ending emails from Stripe webhooks.
Send team & workspace invites
Invite teammates with a tokenized accept link.
Notify on a database change with Supabase
Email on a row change via a Database Webhook and Edge Function.
Send emails from your AI agent
Give a Vercel AI SDK agent a SenderKit tool.
Add SenderKit from your coding agent
Install the skills plugin for Claude Code, Codex, or Cursor.