Gateway Documentation

Build payment integrations with our REST API. Accept cards, ACH, and digital wallets.

Get Started in 5 Minutes

Log in to your Control Panel and navigate to Settings → API Keys.

You'll need two keys:

• Public key (pub_XXX) — For frontend tokenization
• Secret key — For backend API calls

Read the Full Quick Start Guide →

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What Are You Building?

Choose your integration path:

I want to...	Start here
Accept one-time payments on my website	Tokenizer — Hosted payment fields
Save cards for future purchases	Customer Vault — Store payment methods
Set up recurring billing	Recurring API — Subscriptions & plans
Send payment links to customers	Simple Payments — Hosted checkout
Add Apple Pay / Google Pay	WalletJS — Digital wallets
Integrate with WooCommerce	WooCommerce Plugin

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Core APIs

Transactions

Process payments, refunds, and authorizations.

Endpoint	Description
Sale/Auth	Charge cards and bank accounts
Capture	Capture authorized transactions
Refund	Refund settled transactions
Void	Cancel pending transactions
Search	Query transaction history

Customer Vault

Securely store payment methods for repeat customers.

Endpoint	Description
Customer Vault	Create, update, and manage customers
Recurring	Subscriptions and scheduled payments

Other APIs

API	Description
Invoices	Create and send payment requests
Batch Processing	Upload transaction files
Settlement Batches	View daily settlements
Terminals	Physical terminal integration
Custom Fields	Add custom data to transactions
Cart	Shopping cart management

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Services & Tools

Service	What It Does	Best For
Tokenizer	Hosted payment form via iframe	Staying out of PCI scope
Simple Payments	"Pay Now" hosted checkout page	Quick setup, no coding
Webhooks	Real-time event notifications	Automating workflows
Fraud Protection	Risk scoring and rules	Reducing chargebacks
WalletJS	Apple Pay & Google Pay	Mobile-friendly checkout

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Integration Workflows

Step-by-step guides for common patterns:

Workflow	Description
Tokenizer → Customer → Payment	Collect card, save it, charge later
Invoice Payment	Create invoice, send link, get paid
Duplicate Detection	Prevent accidental double charges
Fee Programs	Surcharge, cash discount, dual pricing

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E-Commerce Plugins

Pre-built integrations for popular platforms:

Platform	Status
WooCommerce	WordPress e-commerce
Magento	Enterprise e-commerce
Gravity Forms	WordPress forms

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Testing

Sandbox Environment

All development should use the sandbox:

• Base URL: https://sandbox.example.com
• No real money is processed
• Use test cards to simulate scenarios

Test Cards

Card Number	Result
4111111111111111	Approved
4000000000000002	Declined
4000000000009995	Insufficient Funds
4000000000000051	Partial Approval

View All Test Data →

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Quick Reference

Authentication

All API requests require your secret key in the Authorization header:

-H "Authorization: YOUR_SECRET_KEY"

Request Format

• Content-Type: application/json
• Method: POST for creates, GET for reads
• Amounts: In cents (e.g., 1000 = $10.00)

Response Format

{
  "status": "success",      // or "error"
  "msg": "success",         // Human-readable message
  "data": { }               // Response payload
}

Common Response Codes

Code	Meaning
100	Approved
200	Declined
201	Declined - Call issuer
300	Gateway error

View API Request Documentation →

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Resources

Resource	Description
Quick Start	Get up and running
Test Data	Cards, triggers, and scenarios
Webhooks	Event notifications
Fee Programs	Surcharge & cash discount

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Need Help?

• API Issues: Check the response msg field for details
• Integration Questions: Review the Workflows section
• Testing Problems: Verify you're using sandbox test data
• Account Issues: Contact support through your Control Panel