Rate Limits

Understanding API rate limits and credit-based usage.

Credit System

Apex uses a credit-based system. Each reply consumes credits from your balance. Credits reset based on your subscription billing cycle.

Plan	Credits/Month	Rate (replies/hour)
Trial	30	10
Starter	150	10
Basic	500	10
Pro	1500	15
Beast	5000	20
Business	Custom	Custom

Reply Rate Limiting

The rate field on your user profile controls how many automated replies per hour Apex will post. This is separate from credit limits and applies to the automation engine.

API calls vs automation rate

API rate limits are separate from the automation reply rate. The automation rate controls how fast Apex posts replies on your behalf. API calls themselves are not rate-limited beyond credit consumption.

Insufficient Credits

When you run out of credits, reply endpoints return a 403 error:

{ "statusCode": 403, "message": "Insufficient credits" }

Checking Your Balance

Use the usage endpoint to check your remaining credits at any time: