Supercharge Your Platform with Integrated Payments

Give your users the ability to seamlessly accept payments from your platform with the industry’s leading all-in-one payments API.

grouping of devices with Omni dashboard displayed on the screens

Boost Retention and Revenue with the Best Payments API

By integrating payment processing into your platform, your users will enjoy the “one-stop-shop”
experience they want, while creating the revenue stream and increased user retention you deserve.

Smart Integrations

Developer-friendly API and SDK library for easy set-up.

Profit Sharing

Generous incentive programs for referral partners.

Sales & Marketing Support

A dedicated team to maximize your conversion rates.

Integrated Payment Solutions for Every Industry

Whether you connect doctors with patients, contractors with homeowners, or agencies with businesses,
our robust ISV partner program helps you provide a seamless payments experience for users.


Plastic Surgery

Professional Services

Public Relations
Real Estate

Field Services

Auto/Boat Repair
Moving Services

Health & Wellness

Pet Grooming

Keep Your Customers Coming Back For More

Providing a custom payments integration not only helps your users run their businesses more efficiently but also helps them be more profitable — allowing you to effortlessly attract and retain customers while creating a healthy new stream of revenue at the same time.

Benefits for You

Enjoy Better Retention

Combining your technology with our payment tools will make it easier for businesses to get everything they need in one place – and less likely to leave you for a competitor.

Attract New Customers

Powering your platform with payments will give you the edge you need to attract new customers. Help businesses manage all their needs in one place when you integrate payments.

Improve Functionality

When you integrate with the Fattmerchant payments API, in addition to payments, you can also include our business analytics and payments reporting into your platform’s functionality.

Increase Customer Satisfaction

Customers will love that you’re offering an affordable and time-saving solution by eliminating the need for a separate platform from yours to accept payments.

Benefits for Your Users

Seamless Experience

Customers will enjoy a seamless and simple experience accepting payments. With the API, you’ll be able to make the payments experience perfectly match the rest of your platform.

Low Processing Rates

With our subscription pricing model, customers get access to lower rates for processing credit cards. For a low monthly fee plus flat interchange rates, businesses save big.

Ability to Accept Any Payment

Your users will be able to accept any kind of digital payment with our payment API, giving them more ways to help their customers. Mobile and NFC payments, ACH deposits, and all cards are securely accepted in our platform.

Dependable Hardware

For businesses with a physical location, we offer a suite of credit card terminals and mobile readers to accept credit cards through swiping, chip card dipping, and keyed-in charges.

Desktop computer with Fattmerchant API documentation onscreen.

Developer Solutions for ISVs

Fattmerchant’s developer-friendly SDKs and RESTful API is the industry’s first to offer support for both eCommerce and in-person EMV payments. Check out what our API can do for you.

Easy Onboarding
Instantly connect systems and
start processing immediately.

Recurring Payments
Send recurring bills with a single
schedule by customer.

Customer Management
Manage customers, purchase history,
and stored payments.

Data Analytics
Gain valuable insights through
real-time data analytics with Omni.

One-Time Payments
Set up a catalog to quickly accept
one-time payments.

Bank-Level Security
Process at PCI Level 1, the highest
level of compliance.

Create invoices by product,
service type, or inventory.

Full end-to-end encryption,
protecting payment data.

Hosted Payments
Generate unique URLS to
make payments simple.

Payment Gateway Integrations

Already have a favorite payment gateway? Fattmerchant integrates directly with most of the nation’s popular gateways,
allowing you to upgrade your integrated processing with ease and providing your customers access to our low rates
— without any extra heavy lifting.

Activate Merchants Faster with Payment Facilitation

Payment facilitation (better known as PayFac) allows technology providers to provide a customized integrated payments experience without the hurdles of a traditional ISO. As a trusted payment facilitator, Fattmerchant allows you to activate seamless in-app payments with instant onboarding, advanced customization and quicker access to funds.

How Payment Facilitation Works
Benefits of a PayFac Partnership for ISVs
Features for Your Customers

How Payment Facilitation Works

When a business accepts a credit card, their merchant services provider will send the request through a payment facilitator to move the funds from the customer’s account into the merchant’s account. By acting as both merchant services provider and payment facilitator, Fattmerchant is able to help businesses start accepting payments almost instantly – typically within 20 minutes – getting you and your merchants paid quicker.

Benefits of a PayFac Partnership for ISVs

By partnering with a payment facilitator, you’ll be able to make your platform even better by adding a payments option without the additional time and cost it takes to build your own payments solution — Plus, you won’t have to deal with all the liability, risk, and compliance issues that come with becoming your own payment processor.

    1. Add value to your platform

      Allowing your customers to process transactions from within your platform enhances the value of your solution to business owners by giving them what they need when they need it. By activating in-app payments, your application becomes your customers’ all-in-one business solution — ultimately attracting new customers while keeping your current users happy and on board.

    2. Generate another stream of revenue

      With Fattmerchant’s generous profit sharing program, you’ll earn a percentage of each transaction back. With an ISO model, this money would just be going to the ISO and you’d be missing out on a significant cut of the profits — However, with a payment facilitator you can cut out the middleman, allowing you to earn more revenue without needing to pass unnecessary costs to your users.

    3. Lessen risk and liability

      Payment facilitators act as the underwriters for your users, taking on all the risk associated with merchant services. Fattmerchant is a level 1 PCI compliant merchant services provider, which means we have achieved the highest level of payment security, ensuring your user’s (and their customer’s) data is kept safe and secure.

Features for Your Customers

    1. Instant Merchant Approval

      Because we are acting as the payment facilitator, we can instantly approve your customers instead of having them wait weeks for underwriting approval. It’s the easiest way for your customers to start taking payments sooner.

    2. Same-Day Processing

      With a lightning-fast onboarding process, your customers will be able to take payments within the same day of signing up with us. That makes your platform even more attractive to prospective customers!

    3. Access to Cutting Edge Payment Features

      With instant access to new feature releases, your users will have more ways to get paid sooner by their customers.

      Additional features include:

              – Text2Pay
              – Quick Payments
              – Recurring Invoices
              – Split Payments
              – ACH Processing
              – QBO 2-Way Sync

cheerful man in customer service wearing phone headset at computer.

Your Dedicated Support System

We know that choosing a payments partner is a huge decision. That’s why we’re here to support you every step of the way. Our dedicated partner success team works closely from development to implementation to sales & marketing support to ensure a successful partnership.

Integration Support

We provide simple and clear documentation to help you connect our API with your platform. In addition, our helpful developers will work with your team one-on-one to ensure a seamless integration with your app or website.

Customer Support

In addition to supporting our partners, our in-house support team answers calls 24/7 to help your customers get the best experience. Don’t just take it from us; our NPS score is over 80 points higher than the industry average!

Marketing Support

We offer everything from ready to use co-branded materials to customized marketing plans in order to provide the marketing tools you need to start seeing results.

Sales Support

Our dedicated channel payment consultant team is educated on each partner and nurtures partner generated leads to enhance conversion rates.

Partner Blogs

Ready to upgrade your integrated payments with Fattmerchant?

You deserve the best payments partner, and our goal is to join forces with B2B, B2C and B2B2C SaaS platforms to maximize their potential through strategic payment integrations. Fill out the form below and someone from our business development team will reach out to you shortly!

Not looking for integrated payments?

If you’re an association, financial institution, or referral agent looking to form a partnership — we’d love to chat! Email [email protected] with your name, phone number, and a brief note and someone will reach out to discuss our current opportunities.