How many requests can I send to the API?
600 requests and 60 purchases per minute per key, 3,000 requests per minute per account, and 100 numbers waiting at once.
By default each key can send 600 requests and make 60 purchases per minute, and all keys of an account together 3,000 requests per minute. Up to 100 numbers can wait for a code at once per account, and up to 20 waiting requests (?wait=) can be open per key. Beyond a limit you get 429 RATE_LIMITED with a Retry-After header; every answer also carries RateLimit-* headers. See Developer API quick start.
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