Changelog
New features and changes to the AppStract SMS API.
November 2026
AppStract SMS is in development. The API below is in preview and may change before launch.
SMS API preview
- Send single messages and batches of up to 10,000 recipients.
- Estimate the cost of a message or batch before sending.
- Send and verify one-time codes with the OTP endpoints.
- Request sender IDs and follow their review.
- Receive delivery updates through signed webhooks.
- Check your balance, price and wallet transactions.
- Test everything without sending or paying, using test keys.