Philippines API Introduction

Getting started

Use Sandbox for integration tests, then switch to Production when you go live. For merchant credentials and environment switching, see the integration guide. For request signing, see signature generation.

API reference

Area	Documentation
Transaction	Pay-in collection · Disbursement (pay-out)
Inquiry	Transaction status · Balance inquiry
Settlement	Settlement · Settlement SLA
Payment methods	Payment methods

Environment Configuration

Environment	Protocol	Media Type	Base URL
Sandbox	HTTPS	application/json	https://sandbox-gateway.smilepayz.com
Production	HTTPS	application/json	https://gateway.smilepayz.com

API Overview

Philippines’ digital payment ecosystem is vibrant and rapidly growing, driven by widespread adoption of payment gateway APIs. Key solutions include e-wallets like GCash, supporting both native (GCASH) and pseudo-native (GCASH_WAP) payment methods to meet diverse merchant and user needs.

The system is well-adapted to local market habits and infrastructure, with strong security and compliance that protect user data and funds. Real-time, flexible processing enhances user experience, while cross-border capabilities support international commerce and remittances.

Developer- and merchant-friendly APIs enable easy integration and fast deployment, fueling ongoing innovation and financial inclusion toward a cashless society.

Development Resources

Code examples

smilepayz-demo-java →

• PayInRequestDemo.java — Pay-in
• PayoutRequestDemo.java — Pay-out
• InquiryBalanceDemo.java — Balance inquiry
• InquriyOrderStatusDemo.java — Order / transaction status
• SignatureUtils.java — Signing helpers (minify, RSA-SHA256)

smilepayz-demo-python →

• pay_in_request_demo.py — Pay-in
• pay_out_request_demo.py — Pay-out
• balance_inquiry.py — Balance inquiry
• status-inquiry.py — Order / transaction status
• Tool_Sign.py — Signing helpers (minify, RSA-SHA256)

smilepayz-demo-node.js →

• pay_in_request_demo.js — Pay-in
• pay_out_request_demo.js — Pay-out
• inquiry_balance_demo.js — Balance inquiry
• inquiry_order_status.js — Order / transaction status
• SignatureUtils.js — Signing helpers (minify, RSA-SHA256)

smilepayz-sdk-php →

• PayInRequestDemo.php — Pay-in
• PayoutRequestDemo.php — Pay-out
• InquiryBalanceDemo.php — Balance inquiry
• InquiryOrderStatusDemo.php — Order / transaction status
• Signature.php — Signing helpers (minify, RSA-SHA256)

smilepayz-demo-cs →

• PayInRequestDemo.cs — Pay-in
• PayOutRequestDemo.cs — Pay-out
• BalanceInquiryDemo.cs — Balance inquiry
• OrderStatusInquiryDemo.cs — Order / transaction status
• SignatureUtils.cs — Signing helpers (minify, RSA-SHA256)

smilepayz-demo-golang →

• PayInRequestDemoV2.go — Pay-in
• PayoutRequestDemoV2.go — Pay-out
• BalanceInquiryDemoV2.go — Balance inquiry
• OrderStatusInquiryDemoV2.go — Order / transaction status
• SignatureUtils.go — Signing helpers (minify, RSA-SHA256)