Transmit
Free sandbox email API. Credits that roll over.
7 followers
Free sandbox email API. Credits that roll over.
7 followers
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
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Launch Team / Built With
Tines The single, secure environment for agents, apps, and automations.
Promoted
Sandbox keys never send. Live keys never pretend.
Free sandbox (no domain to start) → monthly retainer → real inboxes. $20 / 30k / unused balance rolls over while you’re subscribed.
Happy to answer anything on the sandbox, keys, or the rollover math.