Paystack API vs OPay API Comparison: Discover the best for Payment Gateways & Processors in Nigeria

Paystack API is best for: Nigerian businesses of all sizes from solo developers to enterprises needing Nigeria's best-documented payment API with the widest developer ecosystem, comprehensive payment methods, and full-feature parity between test and live environments.. Meanwhile, OPay API is best for: Nigerian businesses needing a payment gateway that also integrates deeply with OPay's 40M+ user wallet ecosystem accepting card, bank transfer, USSD, and OPay wallet QR payments in one checkout particularly for mass-market consumer apps, FMCG merchants, and businesses selling to OPay's large mobile money user base.. Your choice should align with whether your team prioritizes Paystack API's developer ecosystem or OPay API's specific capability set.

Paystack API provides a dedicated sandbox testing environment and has webhook status unverified. OPay API offers sandbox testing and has webhook status unverified.

Paystack API pricing: Local cards: 1.5% + ₦100, capped at ₦2,000 (waived for ≤₦2,500). International cards: 3.9% + ₦100. Transfers: ₦10 (≤₦5K), ₦25 (₦5K ₦50K), ₦50 (>₦50K). Volume discounts >₦10M/month. No setup/monthly fees.. OPay API pricing: Local transactions: 1.5% capped at ₦2,000. International: 4% per transaction. OPay wallet transfers: ₦5 each. Other bank transfers: ₦10 (≤₦5K), ₦25 (₦5K ₦50K), ₦50 (>₦50K). Volume discounts available for large processors.. Both platforms offer tailored pricing structures for Nigerian transactions.

Paystack API uses Bearer Token (Secret Key from Paystack Dashboard) authentication with Rate limited contact Paystack for exact limits. OPay API uses API Key + HMAC signature (AppId + request signing with AppKey). Keys from OPay Business Dashboard. authentication with Not publicly specified.