Tools/Resend
Resend
Start freeFree: 3,000 emails/mo, 100/day. No card required for Free. Pro from ~$20 for higher volume.
Transactional confirm. Agent drafts. You gate the send.
Agent: GET /api/catalog/tools/resend
Your confirm lives in a different tool than your newsletter. Beehiiv sends the issue. Kit runs the creator list. **Resend** sends the email that has to land after they pay, book, or sign up.
Draft subject, from, to, and body. Leave it unsent until they say yes. Soft slots ({{offer}} {{who_it_is_for}} {{proof}} {{do_not_touch}}) come from principal/memory — ask once if missing. Domain DNS is still a human step. The agent can list records. You click the registrar. Free is 3,000 emails a month and 100 a day. No card. Pro starts around $20 for 50k. Marketing plans are separate — do not blur them into transactional. Hosted MCP at mcp.resend.com is real (OAuth or Bearer key — human creates the key). Nothing leaves without your yes. Friday is delivery status for approved sends only — never invent opens.
- Free caps concrete: 3k/mo, 100/day — no card
- Transactional seat — not Beehiiv/Kit broadcast
- Hosted MCP (mcp.resend.com) — OAuth or API key
- Agent drafts; you approve every send
- Domain verify is human — agent lists records only
Use cases
This is transactional mail, not a newsletter list
One confirm, receipt, or magic link after they act. Beehiiv/Kit own the broadcast issue. Resend owns the send that must land after pay / book / signup.
The agent drafts the payload. Send is gated
Subject, from, to, HTML/text. Leave it unsent until they say yes in that message. Never silent-send.
Domain DNS is still human
Agent can list DNS records. You click the registrar. Do not invent a verified domain.
Friday is delivery truth, not vanity opens
Pull send status for messages they approved. Do not invent open rates or deliverability scores.
Draft the confirm. Gate the send.
Free tier is real. MCP is real. Nothing leaves without your yes.
- Agent never silent-sends
- Free caps concrete (3k/mo, 100/day)
- Pay only when volume needs Pro/Scale
