| What | Limit | Counted per |
|---|---|---|
| API requests with a secret key | 600 an hour | Calling IP address |
| Starting from a verify button or hosted link | 10 a minute and 60 an hour | Visitor IP address |
link When you hit a limit
You get a 429 with the code RATE_LIMIT_ERROR. Wait and try again, waiting longer after each failure: one second, then two, then four, up to a minute.
Need more?
If your volumes need higher limits, tell us your expected peak and we'll raise them for your account.