Every Email & Transactional APIs comparison and buyer's guide for building AI agents — 5 pieces and counting. Each is a head-to-head or a “best X for Y” roundup with a sources-backed verdict.
Point an MX record at Mailgun or Postmark and every inbound email becomes an HTTP POST your agent can act on — here's the real payload and the code.
4 min
The three real choices for shipping password resets and receipts, decided on the axes that matter to a team of one: free tier, price at scale, deliverability, and how much bounce-handling you have to build yourself. With the send code for each.
3 min
Email is the one inbox everyone already checks. For a solo builder, it's the cheapest way to ship an agent's review queue, alerts, and retention loop — here's how to wire it up reliably.
4 min
The developer-first email API for auth codes, receipts, and newsletters — send your first message with one curl call, then stop worrying about the SMTP plumbing.
4 min
The leap from chat agents to always-on, event-triggered ones gets framed as a question of how autonomous the agent can be. The harder, quieter constraint runs the other way.
4 min