Electronic Payments
EPI
Electronic Payments
For software companies and developers

Integrate your software and add incremental revenue from payments.

Online payments, invoicing, recurring billing, ACH and card present payments, all through one API. Answer a few questions and we’ll tell you exactly which endpoints you need.

Become a software partner Find the APIs you need
Get a test key and start building today
Portfolio healthWhat partners get
ISV Portal Overview: merchants connected, devices online, card-present sales today and each merchant's integration stage
Our integration is free

Merchant360 is your conduit to monetizing payments

No monthly fees and no transaction fees for the integration. Only merchants pay processing fees, set during merchant setup. You earn on every merchant you bring.

Merchant360 integration

Free
$0
per month and per transaction
  • Monthly platform fee$0 per month
  • Per-transaction platform fee$0 per transaction
  • Integration setup feeNo setup fee
  • Only merchants pay processing fees, set during merchant setup
  • You earn on every merchant you bring

Other payment platforms

~$15
per month, plus per-transaction fees
  • Monthly platform feeAbout $15 per month
  • Per-transaction platform feeA platform fee on every transaction
Why partner with Electronic Payments

Everything you need to run payments across your merchants

Three-step onboarding

From first call to live merchants without a long certification project.

  • Apply as a software partner
  • Build with a test key and a Merchant360 dev kit
  • Connect your merchants and go live. Start monetizing payments right away!

Complete terminal management

Every reader at every merchant, managed from one portal.

  • Register one reader or import up to 1,000 at once
  • Standalone, integrated, POS Listener or your own app on the reader
  • Change Payment App settings for all of a merchant's readers or one
  • Activation codes, staging and production units
  • Your logo on the POS Listener screen

Portfolio health in real time

A dashboard of all your merchants, from boarding to taking payments.

  • Each merchant's stage: boarding, terminal setup, activation, live
  • Readers online now, offline and not activated
  • Card-present sales today across your merchants
  • Last payment per merchant
  • Failed webhook deliveries
See what software partners get in the ISV PortalPortfolio health, terminal management, merchant details, your logo on the terminal, platform keys and webhooks.See the ISV Portal
Inside the ISV Portal

Terminal health and every merchant's details

Terminal health

Every reader across your merchants: online or offline, last seen, app version, mode and activation.

ISV Portal Devices: each terminal's model, serial, merchant, environment, app version, mode, status and last seen

Merchant details

One merchant's account status, readers, recent card-present payments and webhook deliveries.

ISV Portal merchant page: account status, Merchant360 Terminal, devices, recent card-present payments and webhooks
Monetize your software

Earn on the payments your merchants already take

  • Revenue share on the processing of every merchant you connect
  • Signing bonuses and incentives for software partners
  • The $750 Merchant360 dev kit, refunded after your integration is done
Tell us about your software

A partner manager puts together your offer from these answers.

Get your partner offer

Apply in a minute and get a sandbox test key right away.

How it works

Three steps to go-live

  1. 1

    Apply

    Tell us about your software and your merchants. A partner manager sets you up and you get a test key right away.

    Apply as a partner
  2. 2

    Build and test

    The wizard lists the exact endpoints for what your software does. Test with a sandbox key and a Merchant360 dev kit.

    Open the wizard
  3. 3

    Connect merchants and go live

    Your merchants are boarded and connected to your platform key. One key serves them all, and the portal shows every one.

    Platform keys
Devices

The PAX devices we support

Choose the form factor that fits your application: handheld, countertop, PIN pad, unattended or POS station. One EMV kernel is supported across the whole device lineup.

PAX A920MAX
PAX
A920MAX
PAX A77
PAX
A77
PAX A35
PAX
A35
PAX A6650 / A6630
PAX
A6650 / A6630
PAX A80
PAX
A80
PAX IM25 / IM30
PAX
IM25 / IM30
PAX A8700
PAX
A8700
PAX A8900
PAX
A8900
PAX A910 / A910S
PAX
A910 / A910S
PAX A960
PAX
A960
PAX A800
PAX
A800
PAX E500
PAX
E500
PAX E700
PAX
E700
PAX E800
PAX
E800
PAX A50 / A50S
PAX
A50 / A50S
PAX A60
PAX
A60
For POS vendors

POS stations built for your software

Run your POS on PAX Android POS stations with payments from Merchant360.

PAX A3700
PAX
A3700
PAX Aries6
PAX
Aries6
PAX Aries8
PAX
Aries8
PAX Elys POS
PAX
Elys POS
Products

What you can build with

Merchant360

Merchant360 API

Payments and billing for every kind of software: point of sale, online ordering, ecommerce and invoicing.

  • Card and ACH payments
  • Hosted fields and checkout pages
  • Invoices, payment links, recurring
  • Customers and cards on file
  • Webhooks for every event
API reference Guides Examples

Card readers and Terminal SDK

PAX countertop and handheld readers running the Merchant360 Payment App, driven from your POS or your own app on the reader.

  • Send a sale, pre-auth or refund to the reader
  • POS Listener mode for integrated POS
  • Tips, surcharge and dual pricing
  • Terminal SDK for your app on the reader
  • Merchant360 dev kit with a test reader
Card-present docs Terminal SDK

TableTurn POS

A full point of sale for restaurants and retail, with payments from Merchant360 built in.

  • Tables, tabs and kitchen display
  • Online ordering
  • Runs on the same PAX readers
TableTurn
ISO360

ISO360 API

For ISOs and agent offices: boarding, terminals and statements from your own CRM.

  • Applications and statement analysis
  • Merchants, devices and terminal settings
  • Monthly portfolio income
API reference Become a partner
eGiftSolutions

eGift and loyalty

Gift cards and loyalty points that work online, in the POS and on the card reader.

  • Issue, activate and add value
  • Balance and redemption
  • Loyalty points
API reference

Every API

All Electronic Payments APIs in one place, including the legacy ProCharge reference for existing integrations.

  • Merchant360, ISO360, eGift
  • Handpoint terminal reference
  • ProCharge (legacy)
Handpoint ProCharge
Where to start

Pick the path that fits you

I build software

A POS, online ordering, ecommerce, invoicing or any platform that takes payments for merchants.

Start the wizard

I'm an ISO or agent

Board merchants, set up terminals and pull statements from your own CRM. Join our reseller program at Residuals.com.

ISO360 API Residuals.com

I'm a merchant

Payments, terminals and a point of sale for your business.

Electronic Payments TableTurn POS

Ready to earn on payments?

Apply as a software partner, or talk to our partner team first.

Become a software partner Talk to our partner team