i have question, how many limit API access for free account?
The Dropbox API does have a general rate limiting system that applies to all account types, but we don't have specific rate numbers documented for that. Apps should be written to handle these rate limit responses automatically. Also note that not all responses with a 429 or 503 status code indicate explicit rate limiting, but in any case that you get a response with 429 or 503 status code the best practice is to retry the request, respecting the Retry-After header if given in the response, or using an exponential back-off, if not. I recommend referring to theĀ error documentation and Error Handling Guide for more information.