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

# Rate limits

> How many tool calls the MCP server accepts, and what happens when the limit is exceeded

Each API key is subject to rate limits based on your subscription plan.

If you exceed the allowed number of tool calls, you will receive a `429 Too Many Requests` response. The rate limit resets after a certain period, which is specified in the `Retry-After` header. MCP clients surface this as a failed tool call, and the assistant can retry it once the wait has passed.

> [!NOTE]
>
> The MCP rate limit is separate from the REST API's rate limit. The two are counted independently, so MCP usage does not consume REST API quota and the other way round.

> [!NOTE]
>
> If you need a higher rate limit, please contact your Quartr representative to discuss options for increasing your limits based on your use case and subscription plan.


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