You can read much more about our API and find documentation on these pages:

If you cannot find the answer here, our help will be on consultancy basis and you have to buy a punch card, if you do not already have one.

Send your questions to api.webcrm@efficy.com, and we will reply within 2 business days.

If you are contacting us about an error in the API, that is of course not paid, if the error is on our side.