> ## Documentation Index > Fetch the complete documentation index at: https://developers.phrase.com/llms.txt > Use this file to discover all available pages before exploring further. # Rate Limiting All API endpoints are subject to rate limiting to ensure good performance for all customers. The rate limit is calculated per user. The default limit is: * 1000 requests per 5 minutes * 4 concurrent (parallel) requests Limits can vary by plan, so check the [Phrase pricing page](https://phrase.com/pricing/) for the concrete limits included in your plan. For your convenience we send information on the current rate limit within the response headers: | Header | Description | | ---------------------- | -------------------------------------------------------------------- | | X-Rate-Limit-Limit | Number of max requests allowed in the current time period | | X-Rate-Limit-Remaining | Number of remaining requests in the current time period | | X-Rate-Limit-Reset | Timestamp of end of current time period as UNIX timestamp | | X-Rate-Limit-Reason | Indicates which limit was exceeded (only present on `429` responses) | If you should run into the rate limit, you will receive the HTTP status code `429: Too many requests`. The `X-Rate-Limit-Reason` header can have the following values: | Value | Description | | ------------------ | ------------------------------------------------------------- | | global-rate | You exceeded your plan's requests-per-5-minutes limit | | global-concurrency | You exceeded your plan's concurrent (parallel) requests limit | If you should need higher rate limits, [contact us](https://phrase.com/contact). Conditional requests that return a `304 Not Modified` response don't count against your rate limits. See [Conditional GET requests / HTTP Caching](/en/api/strings/getting-started#conditional-get-requests-%2F-http-caching).