Mono Connect API vs Duplo API Comparison: Discover the best for Banking & Fintech in Nigeria

Mono Connect API is best for: Nigerian lenders, neobanks, savings apps, and personal finance tools that need to link customer bank accounts for transaction history, income verification, direct bank debits (DirectPay), and identity verification all via one open banking API covering 30+ Nigerian financial institutions.. Meanwhile, Duplo API is best for: African businesses, fintechs, SaaS platforms, and financial institutions that need a unified B2B payment operating system combining bulk payments, expense management, virtual accounts, FX, and NRS-compliant e-invoicing.. Your choice should align with whether your team prioritizes Mono Connect API's developer ecosystem or Duplo API's specific capability set.

Mono Connect API provides a dedicated sandbox testing environment and supports real-time webhooks. Duplo API offers sandbox testing and has webhook status unverified.

Mono Connect API pricing: DirectPay: 1% per transaction capped at NGN 1,000. Financial Data (account linking): subscription-based, contact Mono for pricing. Identity Verification: per-verification pricing. Free sandbox available.. Duplo API pricing: Local cards: 1.5% capped at ₦1,200 ₦1,300. International cards: 3.8% 4.0%. Custom volume tiers for high-volume international processing. Free account available. Contact Duplo for enterprise pricing.. Both platforms offer tailored pricing structures for Nigerian transactions.

Mono Connect API uses Client Secret Key (passed as mono-sec-key in request headers) authentication with Not publicly specified. Duplo API uses API Key (dp_test_* for test mode, dp_live_* for live mode) authentication with Not publicly specified.