> For the complete documentation index, see [llms.txt](https://developer.harness.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.harness.io/harness-ai/use-harness-platform/rate-limits.md).

# Platform Rate Limits

Learn about rate limits that help maximize the stability of the Harness Platform.

The Harness Platform uses several mechanisms, including rate limits, to safeguard against bursts of incoming traffic and help maximize stability. A rate limiter restricts the number of requests received within any given minute, after which Harness throttles requests from the IP address.

{% hint style="info" %}
**NOTE**

Throttling is a type of rate limiting used to control the amount of traffic that an application can handle. It is a way of limiting the number of requests accepted in a given period.
{% endhint %}

Harness has several rate limiters in the platform. Users who send multiple requests in quick succession may receive status code 429 error responses.

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**NOTE**

Retry-After in the 429 error responses is not currently supported by Google Cloud Armor.
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Harness Platform rate limits include:

* Any call: Harness allows 5000 requests every 10 seconds (30,000 requests per minute) per IP address.
* API calls: Harness allows 1000 requests per API key per minute.
* External API requests: 400 calls per minute per X-API-Key.
* GraphQL APIs (FirstGen only): Harness allows up to 1000 requests per minute per IP address.
* Large requests (character size > 500,000): 1 payload every 10 seconds.
* Reset password: 5 calls per minute per IP address.
* User invites: 10 calls per minute per IP address.

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**IMPORTANT**

Harness reserves the right to change limits at any time to protect the platform.
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{% @harness-feedback/feedback module="harness-ai" pagePath="harness-ai/use-harness-platform/rate-limits" %}