# Rate Limits — Vitrify IVF Software API

> Source: https://www.vitrifysoftware.com/api-docs/docs/rate-limits/

> API in active development. Conventions on this page are stable; the endpoint reference and exact values marked “at launch” are published when the API ships.

The API is rate limited so that one integration cannot affect the platform for everyone. Limits apply per API key.

## Limits

The exact request allowance (per minute and per hour) and the response headers that report your remaining quota are published at launch. Design your integration to back off and retry rather than to assume a fixed ceiling.

## When a limit is exceeded

A request over the limit returns HTTP 429 with the standard error envelope (see Errors). Wait and retry; where a retry window is provided it will be documented with the published limits.