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

Detailed technical benchmark and comparison between Mono API and Duplo API. Analyze pricing structures, verified webhooks, sandbox testing, authentication, and compliance for teams building in Nigeria.

MMono API

Mono API

Connect financial accounts and process direct debits.

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DDuplo API

Duplo API

Automate B2B payments, expense management & NRS-compliant e-invoicing

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Mono API is best for Nigerian businesses and developers looking for reliable banking & fintech solutions.

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.

Mono API VS Duplo API Key Highlights

Highlight
MMono API
Mono API
DDuplo API
Duplo API
AuthenticationAPI KeyAPI Key (dp_test_* for test mode, dp_live_* for live mode)
Rate LimitRate limits apply per API key. Contact Mono for specific limits based on plan tier.Not publicly specified
Sandbox Mode✓ Available✓ Available
Webhooks✓ SupportedNot verified yet
API Services
Virtual Account & Account OpeningAccount Balance & Transaction HistoryDirect Debit / Mandate PaymentsBank Transfers & Payouts
Virtual Account & Account OpeningAccount Balance & Transaction HistoryDirect Debit / Mandate PaymentsCard Issuance
Supported Regions
NigeriaNigeriaGhanaGhanaKenyaKenya
NigeriaNigeriaGhanaGhanaKenyaKenya

Pricing & Fee Structure

Fee Component
MMono API
Mono API
DDuplo API
Duplo API
Local Transactions / CardsContact providerLocal cards:1.5% capped at ₦1,200 ₦1,300
International / FX CardsContact provider
  • International cards:3.8% 4.0%
  • Custom volume tiers for high-volume international processing
Free Tier / Trial CreditsFree tier available for development and testingFree account available
Rates & Additional Terms
  • Production pricing is per API call account linking, statement pulls, and direct debits each priced per transaction
  • Contact Mono for volume pricing
Contact Duplo for enterprise pricing

Mono API & Duplo API Feature by Feature Comparison

Feature / Capability
MMono API
Mono API
DDuplo API
Duplo API
Virtual Accounts✓✓
Account Balance & Transaction History✓✓
Direct Debit / Mandate Payments✓✓
Bank Transfers & Payouts✓✗
BVN / KYC Identity Verification✓✗
Card Issuance✗✓
Savings & Investment Products✗✗
Open Banking / Data Access✓✗
Sandbox Testing Environment✓✓
Webhooks & Event Notifications✓✗
API Key / Token Authentication✓✓

Frequently Asked Questions

Which is better between Mono API and Duplo API in Nigeria?
Mono API is best for: Nigerian businesses looking for reliable banking & fintech solutions. 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 API's developer ecosystem or Duplo API's specific capability set.
Does Mono API or Duplo API support webhooks and sandbox testing?
Mono API provides a dedicated sandbox testing environment and supports real-time webhooks. Duplo API offers sandbox testing and has webhook status unverified.
What are the fees and pricing models for Mono API vs Duplo API?
Mono API pricing: Free tier available for development and testing. Production pricing is per API call account linking, statement pulls, and direct debits each priced per transaction. Contact Mono for volume pricing.. 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.
What authentication methods do Mono API and Duplo API use?
Mono API uses API Key authentication with Rate limits apply per API key. Contact Mono for specific limits based on plan tier.. Duplo API uses API Key (dp_test_* for test mode, dp_live_* for live mode) authentication with Not publicly specified.

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