Most email APIs make you verify a domain before you can really test. Your first “test” is already a send.
Transmit starts in a free sandbox: separate keys, simulated email, real webhooks. Sandbox keys never send — like Stripe. No domain to start.
When you’re ready: subscribe, verify domain, create a live key. Same API. Real delivery.
$20/mo adds 30,000 emails. Unused credits roll over. No tiers. No midnight reset.
Build first. Send when you’re ready.
transmit.dev
