[fragmede]

Are you referring to the Venmo API at https://venmo.com/docs/overview/ which has the following warning? If you've managed to buy a business' account to use that API, go for it, but otherwise that seems a bit of a development dead end.

> Our Venmo Developer and Payouts APIs have been retired, and we are no longer able to provide access to businesses who may want to start using it. To find out more about how you can use Venmo as a payment method in your checkout experience, visit https://venmo.com/business/accept-venmo-in-stores.

> For existing businesses who were granted access to the Developer or Payouts API in the past (generally prior to 2016), you will retain access to these APIs and may use them.

Edit: https://techcrunch.com/2016/02/26/how-not-to-run-a-platform

How are you getting access to the Venmo API?