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API Docs 3.0API Docs 3.1API Docs 4.0 SimpleAPI Docs 4.0
Getting Started
Introduction
Authentication
Endpoints
Migration
Onboarding
POST
Add/Update Site Enterprise
POST
Add/Update Site Group
POST
Add/Update Site
Invoices
POST
Add/Update Invoice
POST
Send Invoice
GET
Invoice
GET
Invoices
Customers
POST
Add/Update Customer
GET
Customer
GET
Customers
Contacts
POST
Add/Update Contact
GET
Contact
GET
Contacts
Payments
POST
Add/Update Payment
POST
Void Payment
POST
Refund Payment
GET
Payment
GET
Payments
Subscriptions
POST
Add/Update Subscription
GET
Subscription
GET
Subscriptions
Items
POST
Add/Update Item
GET
Item
GET
Items
Webhooks
Introduction
Payment
Notification
Support
Contact Support

Support

If you need assistance with the Hyfin APIs, you can contact our API support team at jbanks@hyfin.app .