Speechify API has certain limits built-in, to ensure seamless functioning and fair usage for all of our customers.

Input Size Limits

The input size (full input, including SSML tags) is limited to:

• 2,000 characters when using the speech endpoint
• 20,000 characters when using the stream endpoint

Rate Limit

The requests coming from the same user are limited to 200 requests/minute with max of 10 requests/second for bursts.

Note, that the limit is per user account and not per the individual API Key.