Rate Limits

ApexApi enforces rate limits to ensure fair usage and service stability. Limits are based on your account tier.

Rate Limit Tiers

Your tier is automatically determined by your total credit purchases. As you spend more, your limits increase.

Tier	RPM	RPD	Concurrency
Free For testing and development.	10 RPM	100 RPD	2
Starter For personal projects and prototypes.	60 RPM	1,000 RPD	5
Growth For production applications.	300 RPM	10,000 RPD	20
Scale For high-volume applications.	1,000 RPM	100,000 RPD	50
Enterprise Contact us for custom limits.	Custom	Custom	Custom

RPM = Requests Per Minute. RPD = Requests Per Day.

Rate Limit Headers

Every API response includes rate limit information in the response headers.

X-RateLimit-Limit

The maximum number of requests allowed in the current window.

X-RateLimit-Remaining

The number of requests remaining in the current window.

X-RateLimit-Reset

Unix timestamp when the rate limit window resets.

Retry-After

Seconds to wait before retrying (only present on 429 responses).

Handling Rate Limits

Monitor headers

Check X-RateLimit-Remaining in every response to proactively throttle your requests before hitting the limit.

Exponential backoff

When you receive a 429 response, wait for the duration specified in the Retry-After header. If not present, use exponential backoff starting at 1 second.

Request queuing

For high-volume applications, implement a request queue that respects your concurrency limit and spaces out requests evenly.