Rate Limits and 429 - Too Many Requests Errors

Q: We are currently receiving 429 errors for “Too Many Requests” - what is happening and how can I fix this problem?

We currently limit the number of requests that a user can send in order to prevent system abuse and balance load across all of our users. Typically, the standard number of requests that a user is able to send is 100 requests per minute across all API endpoints.

Note: this is a request limit and not a transaction limit, so in one minute, you could POST 50 sets of 1000 transactions for 50 individual end_users and then send 50 PUT requests setting the end_users to ready.

We provide information in the response headers to help you understand how many requests you have remaining in your given limit window and when your limit window will reset. For more details, view our API docs here.