# Rate Limiting Speechace is architected to be highly available and auto-scalable to serve request spikes as needed. The API provides a concurrency guarantee of up to 16 concurrent Transactions per Second (TPS). Above that limit, the API will throttle calls returning `error_too_many_requests.` A higher concurrency limit is available with custom plans and annual contracts. You may contact us at to request a higher limit. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://api-docs.speechace.com/other-resources/rate-limiting.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.