4 Best APIs for SME in Nigeria

We've analyzed and compared the top 4 API providers supporting SME for Nigerian developers and businesses. Find the right infrastructure fit for your startup below.

Written by Editorial Staffs as at 5th August, 2026

All APIs with SME

4 of 4 selected

VelvPay

Pricing
Local transactions: 1% per transaction with no hidden charges. International transactions: flexible rate (contact VelvPay for exact fees). Same-day settlement available. No publicly listed monthly subscription fee.
Card Payment Acceptance
Available
Bank Transfer Acceptance
Available
Payment Link Generation
Available
Invoicing Tools
Available
Same-day Settlement
Available
Web Checkout Integration
Available
Mobile Payment Support
Available
In-person / POS Payments
Available
International Card Acceptance
Available
Developer API Access
Available
Webhook Notifications
Available
Recurring / Subscription Billing
Not available
Bulk Payouts API
Not available
USSD Payments
Not available
Split Payments
Not available
Payment processing
Not available
Fund management
Not available
Business automation
Not available
Account management
Not available
Transfers
Not available
Banking feature integration
Not available
Wallet Balance & Transactions
Not available
QR Code Payments
Not available
Virtual Account Generation
Not available
Merchant Onboarding API
Not available
Payment Links & Checkout
Not available
Webhooks
Not available
Sandbox Environment
Not available
POS Terminal Support
Not available
Crypto Payments
Not available
International Transfers
Not available
Card Issuance
Not available

Mainstack API

Pricing
Free tier with embedded payments. Paid: $49-299/month for business tools
Card Payment Acceptance
Not available
Bank Transfer Acceptance
Not available
Payment Link Generation
Not available
Invoicing Tools
Not available
Same-day Settlement
Not available
Web Checkout Integration
Not available
Mobile Payment Support
Not available
In-person / POS Payments
Not available
International Card Acceptance
Not available
Developer API Access
Not available
Webhook Notifications
Not available
Recurring / Subscription Billing
Not available
Bulk Payouts API
Not available
USSD Payments
Not available
Split Payments
Not available
Payment processing
Available
Fund management
Available
Business automation
Available
Account management
Not available
Transfers
Not available
Banking feature integration
Not available
Wallet Balance & Transactions
Not available
QR Code Payments
Not available
Virtual Account Generation
Not available
Merchant Onboarding API
Not available
Payment Links & Checkout
Not available
Webhooks
Not available
Sandbox Environment
Not available
POS Terminal Support
Not available
Crypto Payments
Not available
International Transfers
Not available
Card Issuance
Not available

Brass API

Pricing
Free for basic features; premium for high-volume transactions
Card Payment Acceptance
Not available
Bank Transfer Acceptance
Not available
Payment Link Generation
Not available
Invoicing Tools
Not available
Same-day Settlement
Not available
Web Checkout Integration
Not available
Mobile Payment Support
Not available
In-person / POS Payments
Not available
International Card Acceptance
Not available
Developer API Access
Not available
Webhook Notifications
Not available
Recurring / Subscription Billing
Not available
Bulk Payouts API
Not available
USSD Payments
Not available
Split Payments
Not available
Payment processing
Not available
Fund management
Not available
Business automation
Not available
Account management
Available
Transfers
Available
Banking feature integration
Available
Wallet Balance & Transactions
Not available
QR Code Payments
Not available
Virtual Account Generation
Not available
Merchant Onboarding API
Not available
Payment Links & Checkout
Not available
Webhooks
Not available
Sandbox Environment
Not available
POS Terminal Support
Not available
Crypto Payments
Not available
International Transfers
Not available
Card Issuance
Not available

CBI Monie

Pricing
Pricing not publicly listed. Contact CBI Monie at support@cbitechnologiesltd.com for enterprise API access and fee structure.
Card Payment Acceptance
Not available
Bank Transfer Acceptance
Not available
Payment Link Generation
Not available
Invoicing Tools
Not available
Same-day Settlement
Not available
Web Checkout Integration
Not available
Mobile Payment Support
Not available
In-person / POS Payments
Not available
International Card Acceptance
Not available
Developer API Access
Not available
Webhook Notifications
Not available
Recurring / Subscription Billing
Not available
Bulk Payouts API
Not available
USSD Payments
Not available
Split Payments
Not available
Payment processing
Not available
Fund management
Not available
Business automation
Not available
Account management
Not available
Transfers
Not available
Banking feature integration
Not available
Wallet Balance & Transactions
Available
QR Code Payments
Available
Virtual Account Generation
Available
Merchant Onboarding API
Available
Payment Links & Checkout
Available
Webhooks
Available
Sandbox Environment
Available
POS Terminal Support
Available
Crypto Payments
Not available
International Transfers
Not available
Card Issuance
Not available

← Swipe to compare all 4 APIs →

++++
VelvPay

VelvPay

VelvPay is a Nigerian payment gateway built specifically for local businesses, freelancers, SMEs, and startups that need an affordable, easy-to-integrate payment solution without the complexity or pricing overhead of larger platforms. Positioned as "a rising star" in Nigeria's fintech ecosystem, VelvPay differentiates itself through transparent flat-rate pricing, same-day settlement, built-in invoicing tools, and a local-first approach to customer support that understands the specific needs of Nigerian merchants. **What VelvPay Does** VelvPay provides a multi-channel payment acceptance platform that covers web checkout, mobile app payments, and in-person transactions. At its core, the platform allows Nigerian businesses to accept card payments (Visa, Mastercard, Verve) and bank transfers from customers, with settlement directly to the merchant's Nigerian bank account. The platform is accessible both through a developer API for technical integrations and through a merchant dashboard with no-code tools for non-technical users. **Pricing — 1% Local Transactions** VelvPay charges 1% per local NGN transaction — one of the more competitive rates in the Nigerian payment gateway market. There are no hidden charges on top of this fee. For international transactions, VelvPay applies a flexible fee structure (specific rates are provided during merchant onboarding). No publicly advertised monthly subscription fee is required, making it a low-risk choice for businesses with variable or seasonal transaction volumes. For context, this 1% flat fee compares favorably to other Nigerian gateways that charge 1.5%–2.5% per transaction — a meaningful cost difference at scale, particularly for businesses processing high volumes of low-to-mid-value transactions. **Same-Day Settlement** VelvPay offers same-day settlement, which means payments collected on a given business day are available in the merchant's bank account on the same day (subject to cut-off times). This is a significant advantage for cash-flow-sensitive small businesses and freelancers who cannot afford to wait 1–3 days for funds to clear. **Invoicing Tools** Unlike most payment gateways that focus purely on API integrations, VelvPay includes built-in invoicing tools in the merchant dashboard. Businesses can create professional invoices with a payment link embedded directly — the client clicks "Pay Now" and completes the payment via card or bank transfer. This makes VelvPay accessible to freelancers, consultants, and service businesses that don't have a website or e-commerce store. **API & Developer Tools** VelvPay provides a REST API for developers who need to integrate payment acceptance into websites, mobile apps, or backend systems. API keys are issued after completing merchant onboarding. The API follows standard patterns with JSON request/response formats and webhook notifications for payment lifecycle events (payment initiated, payment successful, payment failed). Documentation is available through the VelvPay developer portal. **Multi-channel Payment Acceptance** VelvPay supports three primary payment channels: - **Web checkout**: A hosted payment page or embeddable checkout widget for websites and web apps - **Mobile**: SDK/API integration for iOS and Android mobile applications - **In-person**: Payment acceptance at physical locations for retail, market vendors, and hospitality businesses **Nigeria Focus & Support** VelvPay is built exclusively for the Nigerian market. Customer support is local and understands the operational reality of Nigerian businesses — from intermittent banking system downtimes to the preferences of Nigerian consumers for specific payment methods. This localization is a meaningful advantage for businesses that find the support teams of international platforms less responsive to Nigeria-specific issues. **Compliance** VelvPay operates within Nigeria's CBN regulatory framework for payment service providers. Merchant onboarding includes standard Nigerian KYC requirements (CAC registration, director ID, business bank account) to comply with CBN anti-money laundering directives. **Challenges & Limitations** VelvPay is smaller than market leaders Paystack and Flutterwave, which means its ecosystem of plugins, third-party integrations, and developer community resources is less extensive. Recurring/subscription billing and bulk payout APIs are not documented as current product features. USSD payments and split payment capabilities are also absent. For businesses that need deep payment infrastructure (marketplace payment splitting, cross-border payouts, card issuance), a larger platform may be more appropriate. However, for straightforward payment collection and invoicing in Nigeria, VelvPay's simplicity and pricing are competitive advantages. **Frequently Asked Questions** Q: What is the transaction fee on VelvPay? A: 1% per local NGN transaction with no hidden charges. International transaction fees are flexible — contact VelvPay for current rates. Q: Does VelvPay offer same-day settlement? A: Yes. Payments collected are typically settled to the merchant's bank account the same business day. Q: Do I need a CAC-registered business to use VelvPay? A: A CAC registration is required for production merchant access. Test/sandbox credentials can be obtained for development testing before completing KYC. Q: Does VelvPay support recurring billing? A: Recurring/subscription billing is not a documented current feature — use Paystack or SPay if you need automated recurring charges. Q: Is VelvPay available outside Nigeria? A: VelvPay is designed for the Nigerian market. Non-Nigerian businesses should explore international gateway options.

++++
Mainstack API

Mainstack API

Mainstack is a Nigerian fintech platform providing embedded payments, business tools, and payout APIs for entrepreneurs and SMEs. The Mainstack API enables payment processing, fund management, and business automation. Nigerian entrepreneurs, creators, and SMEs use Mainstack to accept payments, manage funds, and access embedded finance.

++++
Brass API

Brass API

Business banking API for SMEs providing account management, payments, and financial services. Brass enables businesses to manage accounts, make transfers, and integrate banking features directly into their platforms. Designed specifically for SME needs with developer-friendly APIs.

++++
CBI Monie

CBI Monie

CBI Monie is a Nigerian payment infrastructure platform operated by CBI Technologies Limited. The company is licensed by the Central Bank of Nigeria (CBN), ISO-certified, NDPR-compliant, and PCI-DSS certified — making it one of the compliance-ready options for Nigerian businesses and fintechs needing embedded payment capabilities. CBI Monie offers multi-channel payment acceptance including POS terminals, dynamic QR codes, virtual account numbers, payment links, and a developer API for programmatic integration. What the API Does The CBI Monie API provides RESTful endpoints for: wallet balance and transaction management; QR code and virtual account generation; merchant onboarding for agent networks; payment links and checkout sessions; and real-time webhook events for automated workflows. The API is designed for fintechs, ERP systems, government platforms, and agent network operators that need to embed payment infrastructure into their products. How Developers Use It API access is by request — developers contact support@cbitechnologiesltd.com to initiate onboarding. Once approved, API credentials are issued. The platform provides SDKs and webhook integration modules. A sandbox environment is available for safe testing of transactions and webhook events before going live. The API follows RESTful conventions. Pricing Not publicly listed. CBI Monie pricing is available upon request through their sales and support team at support@cbitechnologiesltd.com. There is also a dedicated pricing page at cbimonie.com/pricing for merchant plans. Compliance CBN-licensed, ISO-certified, NDPR-compliant (Nigeria Data Protection Regulation), and PCI-DSS certified. CBI Monie handles cardholder data in compliance with international payment security standards. All merchant and API partner onboarding includes KYC verification. Supported Payment Channels POS terminals (physical card-present), dynamic QR codes, virtual account numbers (NIP transfers), payment links and hosted checkout, and web/mobile integration via API. Challenges and Gotchas (1) API access is not self-serve — requires approval and manual onboarding. (2) No USSD payment support. (3) No crypto or cross-border payment capabilities. (4) Rate limits and detailed technical specs are not publicly documented. (5) Compared to Paystack or Flutterwave, documentation is less comprehensive and publicly accessible. Company Background CBI Monie is a product of CBI Technologies Limited, a Nigerian fintech infrastructure company. The platform targets enterprise and institutional clients including government agencies, large merchants, fintechs building on top of their rails, and agent network operators who need a compliant multi-channel payment stack. FAQs Q: How do I get API access? A: Contact support@cbitechnologiesltd.com to request API access. Access is not self-serve. Q: Is there a sandbox? A: Yes. CBI Monie provides a developer-safe sandbox for testing transactions and webhooks. Q: Is CBI Monie suitable for a consumer app? A: Yes, through the wallet and virtual account APIs. It is also well-suited for B2B and enterprise platforms. Q: Does CBI Monie accept international cards? A: Yes. POS and card acceptance includes Verve, Visa, and Mastercard. Q: Can CBI Monie handle agent network onboarding? A: Yes. The Merchant Onboarding API is specifically designed for programmatically onboarding agents at scale. The PCI DSS certification of CBI Monie ensures that card data processed through the platform meets the Payment Card Industry Data Security Standard requirements for cardholder data protection. For Nigerian fintechs and enterprises concerned about compliance with card scheme requirements, CBI Monie's certified status removes the burden of achieving independent PCI DSS certification for card data handling within the integrating platform's environment. QR code payment functionality in CBI Monie enables merchant-displayed QR codes that customers can scan to initiate payments using their mobile banking apps or fintech wallets. As QR code payment adoption grows in Nigeria — driven by CBN's promotion of cashless payment infrastructure and the expansion of mobile banking usage — merchants integrated with CBI Monie can offer this payment channel alongside traditional card and bank transfer methods without additional infrastructure. Merchant onboarding APIs within CBI Monie allow platform operators managing merchant networks to programmatically onboard new merchants, verify their identity and business credentials, and activate payment acceptance — building automated merchant lifecycle management for agent banking platforms, marketplace operators, and payment aggregators managing large merchant portfolios in Nigeria.