Thailand 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

Thailand 's Payment Gateway APIs are reshaping the financial sector by facilitating seamless, secure, and fast transactions across a variety of platforms.

1. Diverse Payment Methods include QR Payments...
2. Seamless Integration.
3. Security and Compliance
4. Real-Time Processing
5. Local and International Compatibility
6. Developer and Merchant Support

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)