Does Dropbox OAuth have a Rate Limit?

Question

I am doing CI automation testing and using Dropbox for archiving documents. The test begins by performing OAuth authentication with static page objects: Login, Confirmation, Consent. This afternoon, for the first time, CI testing was presented with a new OAuth authentication page: "Verification you are a person" captica. No way will the CI testing handle this captica.

Verification captica

So, curious:

* Is there a rate limit for doing OAuth?
* Is there a way to determine OAuth has reached it rate limit without checking page contains object header "Verification"?

Verification initial page

Greg-DB · Accepted Answer

For reference, it looks like this is related to this earlier post, in case anyone is looking for more context: https://www.dropboxforum.com/t5/Discuss-Developer-API/Critical-New-quot-Verification-as-real-person-quot-captcha-Work/m-p/358012#M696

Anyway, as I covered somewhat there, the Dropbox website, including the login flow used during the OAuth app authorization process, does have a number of protections such as this, but we don't have any specific numbers documented for this, and it's subject to change over time. The Dropbox web site is not intended or supported for automations like this.