get https://sandboxapi.givechariot.com/v1/nonprofit/
Get a nonprofit organization by EIN.
If the nonprofit does not exist, this returns 404 Not Found status.
If the nonprofit does not pass our compliance checks, a 422 Unprocessable Content is returned with a reason.
In the case that the nonprofit does not exist, you can create one by calling the POST /v1/nonprofits API endpoint.
The EIN should be exactly 9 digits and should not contain any special characters such as dashes.