Limits
Rate limits
You’re limited to sending 3,000 messages per minute. You should avoid sending messages in large spikes.
This limit is calculated on a rolling basis, per API key type. If you exceed the limit, you will get a 429 error RateLimitError.
Daily limits
There’s a limit to the number of messages you can send each day:
Live
Team or live
250,000 emails
250,000 text messages, including a default 100 international text messages
20,000 letters
Trial
Team
50 emails or text messages
Live or trial
Test
250,000 emails
250,000 text messages, including a default 100 international text messages
20,000 letters
GP surgeries cannot send any text messages in trial mode.
While your service is in trial mode, you can only send messages to yourself and your team members.
These limits reset at midnight UTC.