Developers

Built for Developers

Use Hyfin's enterprise payment features in your own application. Simple to integrate, powerful at scale.

We've got you certified, with access to 20+ gateways and counting, your solution will never be limited when integrating with Hyfin.

Read the Docs

			
// Create a customer
const resp = await fetch("https://api.hyfin.app/api/v4/site/YOUR_SITE_ID/customer/addUpdate", {
  method: "POST",
  headers: {
    "Authorization": "Bearer YOUR_API_KEY",
    "Content-Type": "application/json"
  },
  body: JSON.stringify({
    displayName: "ABC Plumbing",
    primaryContact: { firstName: "John", lastName: "Doe" }
  })
});

const { success, _id } = await resp.json();

Hyfin Docs

Get an overview of Hyfin's features, integrations, and how to use them.

Getting Started

Everything you need to quickly set up and start using the API.

Onboarding

Set up your organization structure and get your system ready.

Invoices

Create, send, and manage invoices seamlessly.

Customers

Manage customer data across your platform.

Contacts

Manage multiple contacts for each customer.

Payments

Process and manage all payment activities.

Subscriptions

Handle recurring billing with flexible subscription management.

Items

Manage your catalog of products and services.

Webhooks

Stay updated with real-time system events.

Support

Get help when you need it and reach out for assistance.

Embed payments directly into your software

Simple API

The easiest way to embed payments directly into your software without changing your user's workflow.

The easiest way to add payments to your software

Simple RESTful JSON API

Use our prebuilt code snippets and integrate within minutes

Onboard new merchant accounts, send payment requests, generate payment links all within a single easy-to-use API

Read the Docs

Integrate in a Few Lines

Example Code Snippet below.

Example Code

			
// Create a customer
const resp = await fetch("https://api.hyfin.app/api/v4/site/YOUR_SITE_ID/customer/addUpdate", {
  method: "POST",
  headers: {
    "Authorization": "Bearer YOUR_API_KEY",
    "Content-Type": "application/json"
  },
  body: JSON.stringify({
    displayName: "ABC Plumbing",
    primaryContact: { firstName: "John", lastName: "Doe" }
  })
});

const { success, _id } = await resp.json();

Frequently Asked Questions

Can't find what you're looking for?

What can be branded/customized?

Hyfin allows for many brand or feature customizations.
Logo, color theme, message details, Payment types (CC, ACH), payment confirmations/notifications, payment terms, tipping, partial payments, hosted payment page field additions, text message contents, and much more can all be set in Hyfin.

Can users have different roles/limits?

Roles are completely customizable.
With proper permissions, Hyfin gives the ability to create any number of roles as needed so their employees can create invoices and/or, apply refunds, produce reports, receive payment confirmation or failure notifications, and much more.

Does the merchant have access to the customer's credit card information?

No.
Hyfin does not store or display credit card data. Hyfin receives an encrypted token that is used to facilitate payments.

Is there a limit or fee per Hyfin Users?

No.
Hyfin does not limit the number of users per merchant account.
Authorized users can add new users and assign permissions according to job function.

Can customers submit a tip?

Yes, if applicable, tipping can be enabled.
Like the partial payment option, once enabled in Hyfin, the option to provide a tip would be available to any and all customers

Can Hyfin automatically charge a credit card on file?

Yes, Hyfin supports a "payment-on-file" like functionality which requests customers provide a CC or ACH payment method that can be used for future invoices or to initiate a subscription.
This is completely secure and better than "card-on-file" in that the Credit Card or ACH information is never shared with the merchant and the tokenized payment method can be charged

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