We enforce a rate limit on how many HTTP requests can be made in a given period. When the limit is reached, our PSD2 API will return an error 429 Too Many Requests.
To allow you to handle this rate limiting in a programmatic way, the following headers are sent along every response:
RateLimit-Limit: total number of available requests between two quota resets;RateLimit-Remaining: number of available requests until the quota is reset;RateLimit-Reset: time remaining (in seconds) until the quota is reset.