Vincere API: obtain API access and complete the OAuth2/Auth0 authorization flow

Steps

1. Check whether your integration is one of Vincere's existing marketplace partners; Vincere only issues API keys for partners with a formal integration agreement or for direct customer/IT-specialist use of the public docs.
2. Gather the required intake information before contacting Vincere Support: your Tenant URL, the integration name, and a Callback URL provided by your application/vendor.
3. Request API credentials from Vincere Support, who will coordinate with the Partnership Manager if you're not already a listed partner.
4. Add your application's redirect URL to the client's Allowed Callback URLs so Auth0 (Vincere's identity provider) recognizes it as valid.
5. Complete the Auth0-based OAuth2 flow: the callback receives an authorization code that is exchanged for id_token, access_token, and refresh_token.
6. Reference the full endpoint catalog at https://api.vincere.io/ (requires the issued API key/tenant context) for entity-specific operations once authenticated.