> ## Documentation Index
> Fetch the complete documentation index at: https://docs-vip.apigo.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Rate Limits

> Rate limit guidance inside API Guide for request frequency and concurrency planning.

This page explains the throughput and throttling constraints you should pay attention to when calling the API.

## What to check

* request rate per time window
* concurrency limits
* whether different models or capabilities have separate quotas
* whether free, test, and production environments differ

## Engineering guidance

* centralize retry, backoff, and circuit breaking on the server
* use caching or queueing for high-frequency flows
* separate business traffic spikes from model invocation spikes

## Suggested debugging order

1. confirm whether you hit a platform-level throttle
2. confirm whether the specific model or capability has its own rate cap
3. inspect whether the client is retrying or resubmitting unexpectedly