Home/SaaS Tools/Opn Payments
Opn Payments
SaaSPaid

Opn Payments

Bangkok-founded payment gateway trusted by 30,000+ Thai merchants with fast API integration across SEA

Visit Site →
⭐ 4.5/5 · 1,870 reviews
via G2, Capterra or Trustpilot
•Pricing Verified May 2026
•Features Verified May 2026
•Thailand Fit Reviewed May 2026
Software Listing Editorial Team
Reviewed & Verified by
SaaS & AI Research Desk • Thailand, Singapore, Vietnam, Indonesia, Philippines, Malaysia Expertise
Structured Snapshot
Best For
Thai e-commerce founders and SaaS companies building their first payment integration without enterprise contracts
Pricing
Paid
Free Trial
Yes
Thailand Fit
High
SEA Localization
Strong
Main Competitor
Shopify

About Opn Payments

Opn Payments (formerly Omise) is a Thai-founded payment gateway with a developer-friendly REST API covering credit cards, PromptPay, QR payments, internet banking, e-wallets, and BNPL across Thailand, Japan, Singapore, and Malaysia. Founded in 2013 in Bangkok, it serves merchants from solo founders to enterprise brands like ICBC, True Corporation, and Pomelo Fashion. The clean API documentation and SDKs in multiple languages make it a top choice for SEA developers who need a payment layer without the procurement friction of larger global PSPs.

Key Features

✓ Credit and debit card acceptance with 3.65% per transaction fee in Thailand
✓ PromptPay QR code payments at 1.65% — the cheapest real-time payment method for Thai merchants
✓ Internet banking and e-wallet integrations including TrueMoney, Rabbit LINE Pay, and SCB Easy
✓ BNPL options via KBank and Krungsri installment plans built into the checkout flow
✓ Multi-currency processing for SGD, MYR, JPY, USD alongside THB
✓ Developer-first REST API with SDKs for Ruby, Python, Node.js, PHP, Go, and Swift

Best For

Thai e-commerce founders and SaaS companies building their first payment integration without enterprise contractsSingapore and Malaysia startups needing a trusted SEA-native PSP with multi-country supportMarketplace and platform builders needing split-payment and sub-account capabilities across SEAInternational brands entering the Thai market who need PromptPay and TrueMoney alongside international cards

Sources & Verification

We verify pricing and features via official vendor documentation and live platform audits. Software-listing.com is independent and may earn affiliate commissions from some links.

Related Analysis & Guides

Pricing

Modelpay-per-transaction
Free tier✓ Yes

Details

CategoryPayments
LanguagesEN, TH, JA
Updated2026-05-20