Harmonize Integration Guides

Welcome to the Harmonize Integration Guide, your step-by-step resource for connecting your payment processors to the Harmonize platform. Whether you're integrating through modern APIs or coordinating secure SFTP delivery with legacy providers, this guide provides the detailed instructions, links, and templates you need to get started smoothly.

Optimized Payments will ingest daily transaction files and historical data from your payment processor, standardize and analyze using proprietary algorithms to build analytics dashboards. This data will help identify savings opportunities, help improve authorization rates, accelerate reconciliation, and manage chargebacks.

Data Security:

Optimized Payments is SOC 2 Type 2 compliant.

Optimized Payments will not request, store, or process any Personally Identifiable Information (PII) in Client transaction data. All transaction data is securely stored in a cloud data warehouse.

Access to the any payment processor’s portal is view-only, used solely for downloading missing files or performing necessary tasks.

What This Guide Covers

Each section of this documentation outlines:

  • Connection Type (e.g., API or SFTP)

  • Overview of how Harmonize integrates with each provider

  • Required Credentials or account access

  • Step-by-Step Instructions tailored to the PSP

  • Verification process and what to expect

  • Help contacts and escalation paths

📧 Contact us at [email protected] — our onboarding team is here to help and can guide you step-by-step.

We recommend starting with your signed service order or integration scope document to determine which providers are in scope for your account.


Payment Service Provider (PSP) Integration Guides

PSP

Connection

Integration Guide

AAFES

SFTP

Guide coming soon

Adyen

Webhook/SFTP

View guide

American Express (Amex)

Email/SFTP

View guide

BAMS Prop

SFTP

Guide coming soon

Braintree

API/SFTP

View guide

CenPos

SFTP

Guide coming soon

Chase

SFTP

View guide

Chase North American Platform (NAP)

SFTP

Guide coming soon

Checkout.com

SFTP

View guide

ComData

SFTP

Guide coming soon

Cybersource

API

View guide

Discover

SFTP

View guide

dLocal

SFTP

View guide

EBANX

SFTP

View guide

Elavon

SFTP

View guide

EPX


Guide coming soon

Finaro


Guide coming soon

Fiserv / CLE / First Data

Email/SFTP

Guide coming soon

Global Payments

API/SFTP

Guide coming soon

Heartland

SFTP

View guide

Hyperwallet

SFTP

Guide coming soon

Moneris

SFTP

View guide

PayPal

SFTP

View guide

Payrix

SFTP

Guide coming soon

Recurly

SFTP

Guide coming soon

Shift4

SFTP

View guide

Stripe

API

View guide

Tabapay

SFTP

Guide coming soon

Voyager

SFTP

Guide coming soon

WEX

SFTP

View guide

WorldPay

Email/SFTP

View guide

Zuora

SFTP

Guide coming soon