## Rate Limits

EGYM MMS API v2 has a rate limiter against bursts of incoming traffic to help maximize its stability.

**Each [API Key](/mms-api-v2/authentication) gets its own token bucket with a capacity of 60 tokens, refilling continuously at
a rate of 60 tokens per 10 seconds (6 tokens/second).**

Every request consumes 1 token from the bucket for that API Key. Unlike a fixed 10-second window, the bucket
refills continuously and permits bursts up to the number of tokens currently available. Requests spaced at no more
than 6 per second can continue indefinitely because tokens refill as quickly as they are consumed. Faster traffic
drains the accumulated tokens; when no token is available, requests are rejected with status code `429` (see
[Client Error Codes](/mms-api-v2/errors#429-too-many-requests) for details) until enough tokens refill.