Mektup gives any domain you own real inbound and outbound email, set up in minutes by you, or by the AI coding agent that built the rest of your app.
Free tier: 1 domain, 1,000 emails/month. No credit card required.
You can ship a full SaaS with Lovable, Bolt, or Cursor in a weekend. You can buy a domain from Vercel or Cloudflare in thirty seconds. Neither one gives you a working hello@yourdomain.com.
Transactional-email APIs solve half the problem, outbound only. Contact-form services stop at "message sent." Nobody built the inbound half, and nobody built it for the way people actually build software now: through an AI coding agent, not a support ticket.
Actual mailboxes running on real mail infrastructure, not just an SMTP relay. Receive mail from anyone, not just fire-and-forget sends.
A real MCP server: your agent registers the domain, gets the DNS records, creates the mailbox, and sends the first email, all inside its own session.
Every domain gets a real DKIM keypair and the exact records to add. No key management, no guessing what a DNS provider expects.
Every client project, every side project, every domain you own, one dashboard and one API key across all of them.
Threaded conversations, search, drafts, folders, forwarding, vacation replies. Everything a normal inbox has, not a stripped-down logs viewer.
No MCP client? The same operations are a documented REST API or a CLI, nothing here is locked to one tool.
Through the dashboard, the API, or ask your agent to. You get back the exact MX, SPF, DMARC, and DKIM records.
At whatever registrar or DNS host you already use. Mektup never touches your DNS itself, it only ever tells you what to add.
Real mail, in the Mektup dashboard, in Outlook or Apple Mail over IMAP, or straight through the API from your own code.
Every capability is a documented HTTP endpoint too, for whatever isn't running through an agent.
# send real mail from a domain you registered curl -X POST https://api.usemektup.com/v1/emails \ -H "Authorization: Bearer mek_live_..." \ -H "Content-Type: application/json" \ -d '{ "from": "hello@yourstartup.com", "to": "someone@gmail.com", "subject": "It works", "text": "Real mail, sent through Mektup." }'
Both. Mektup runs real mail infrastructure behind the API, so a mailbox you create receives real mail from anyone, not just fires off transactional sends. Read it in Mektup's own dashboard, or in Outlook, Apple Mail, or Thunderbird over real IMAP and SMTP.
Yes. Mektup ships a real MCP server with tools covering the whole platform. An agent like Claude Code or Cursor can register a domain, walk through DNS setup, create a mailbox, and send the first email, all inside its own session.
No. Mektup runs and operates the mail infrastructure. You register a domain and get a mailbox, nothing to install, patch, or keep online yourself.
Mektup never touches it. Registering a domain returns the exact records to add, and you, or your agent, add them at whatever registrar or DNS host you already use.
Yes. 1 domain, 1,000 emails a month, 3GB of storage, no credit card required.