A transactional email API without templates

Most transactional email APIs send content you write. Sendable is the API that writes the content — you describe what happened, it composes and sends it.

One call, from any language over HTTP or the JS SDK:

import { send } from 'sendableme';

await send('sam@example.com', 'order_shipped', { orderId: 'A-1042', eta: 'Friday' });

Or raw HTTP: POST /v1/send with Authorization: Bearer <key> and a body of { to, event, data }. Works from Node, Ruby, Python, PHP, Go, or any HTTP client.

Why it's not a template

You send an event name and field names — never a designed template. The model that writes the copy never sees your values, so a price or a link is inserted verbatim and can't be altered, and a second model blocks any claim your data doesn't support.

Written, on-brand email with nothing to maintain.

What it includes

One-call send — no templates, no dashboard step
Values inserted verbatim; a second model blocks unsupported claims
Test mode (sk_test_ keys compose without delivering)
Automatic unsubscribe handling
MCP server, so Claude and Cursor can wire it up by asking

Honest limitations

Email only today — no SMS.
No batch, scheduling, or webhooks yet.
Composes best with a specific event name (order_shipped, not update).

Try it free

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500 messages a month, no card. One call to integrate.