14 Best APIs for USSD in Nigeria

Arkesel is a West African communications platform providing SMS, voice OTP, WhatsApp Business messaging, and email APIs built for the African market, with strong coverage across Ghana and Nigeria as its primary markets. Founded in Ghana, Arkesel brings deep knowledge of West African mobile network behavior, regulatory environments, and developer needs to its API platform — offering competitive African-market pricing, direct network routing for Ghanaian and Nigerian carriers, and customer support that understands the West African telecommunications context. For Nigerian developers who also serve Ghanaian users or work within West African conglomerates operating across both markets, Arkesel provides unified multi-channel communications from a single African-native platform. SMS delivery through Arkesel reaches Nigerian mobile subscribers on MTN, Airtel, Glo, and 9mobile with sender ID support, DND compliance, and delivery reporting. The API uses a simple REST interface with API key authentication, accepting the sender, recipient, and message in a POST request and returning a message ID and status. Nigerian developers can integrate Arkesel SMS in under an hour, with documentation and code examples available in PHP, Python, JavaScript, and other common languages. Voice OTP through Arkesel provides phone call-based verification for Nigerian users who cannot receive SMS (due to DND, no SMS coverage, or feature phone limitations). The voice OTP system calls the recipient's number and reads the OTP code using text-to-speech, providing an automatic fallback to voice when SMS OTP delivery fails or times out. Nigerian fintech apps and e-commerce platforms using Arkesel can implement SMS OTP with automatic voice retry — if the SMS is not confirmed within 60 seconds, trigger a voice call to the same number with the same code. WhatsApp Business API through Arkesel enables Nigerian businesses to send WhatsApp template messages and engage customers in WhatsApp conversations through a managed Business API integration. Arkesel handles the Meta Business verification and WhatsApp Business API approval process on behalf of the Nigerian business, providing a more straightforward path to WhatsApp API access than going through Meta directly. Nigerian e-commerce companies, banks, and service businesses can use Arkesel WhatsApp to send order updates, payment confirmations, and customer service responses on the channel Nigerians use most. Bulk SMS campaign management through the Arkesel dashboard allows uploading contact lists, creating message templates, scheduling sends, and monitoring delivery reports — all without writing any code. Nigerian business owners and marketing teams who are not developers can run SMS campaigns through the Arkesel web interface, while developers can automate the same campaigns through the API. Email delivery through Arkesel supports transactional email (automated single-recipient emails triggered by application events) and bulk email campaigns, with deliverability infrastructure managed by Arkesel. Nigerian businesses wanting a single vendor for both SMS and email notifications can unify their notification infrastructure through Arkesel rather than managing separate SMS and email providers. Arkesel pricing is designed for African market purchasing power, with NGN-compatible pricing and competitive rates for both Nigerian and Ghanaian SMS delivery. New accounts receive free trial credits for testing, and the freemium model allows Nigerian startups to build and test SMS features before committing to paid plans. Arkesel's combined SMS + WhatsApp + Voice + Email package from a single African API provider makes it a compelling choice for Nigerian developers who want to consolidate communications under a partner that understands their market.

Wireless Card Issuing and USSD API is an African fintech infrastructure platform that combines card issuance capabilities with USSD payment processing, providing two distinct but complementary payment channels through a single API integration. By offering both card-based payments for smartphone and internet users and USSD-based payments for feature phone and low-connectivity users, Wireless enables Nigerian and African platforms to maximize their payment acceptance coverage across the full spectrum of device and connectivity capability in the market. USSD (Unstructured Supplementary Service Data) is a GSM protocol that works on every mobile phone — from basic feature phones to modern smartphones — by dialing a short code that initiates a menu-driven session with a backend system. USSD requires no internet connection, no data plan, no smartphone, and no app installation. The payment session is conducted entirely through the familiar dial-pad interface that every mobile phone user already knows how to use. In a country like Nigeria where smartphone penetration reaches approximately 50 percent of mobile users, USSD-based payments provide critical market reach into the 50 percent of mobile users on feature phones and the substantial portion of smartphone owners who are on very limited data plans or in areas with poor internet connectivity. The Wireless USSD API provides a programmatic backend for USSD payment flows, connecting the carrier-delivered USSD session to the merchant's payment system. When a customer dials the merchant's USSD short code, the session is routed through Wireless's infrastructure to the merchant's API endpoint, which delivers menu prompts and processes customer inputs to complete the payment transaction. The merchant's API receives structured session data, can respond with text menus, and receives notification of successful payment completion. Card issuance through Wireless allows partner platforms to issue physical and virtual payment cards to their customers, extending the card infrastructure alongside the USSD capabilities. The combination serves different user segments: USSD for the feature phone and low-bandwidth segment, cards for internet-connected and smartphone users. A platform using Wireless can serve both groups from a single API relationship rather than integrating separate USSD and card infrastructure providers. Low-bandwidth optimization in Wireless's platform design reflects the reality that much of Nigeria's mobile internet infrastructure delivers variable data speeds. Payment flows and API responses are designed to function reliably even on 2G EDGE connections, which are still prevalent in rural areas and can appear in urban areas during network congestion. This optimization is not just a technical detail — it directly affects whether customers in rural Nigerian states and smaller towns can successfully complete transactions or are excluded from digital payment access. Spending controls on Wireless-issued cards allow partner platforms to configure transaction limits, merchant category restrictions, and per-day or per-period spending caps. For fintech platforms issuing expense cards or input finance cards with use restrictions, these controls ensure that issued cards are used within the intended scope. A cooperative issuing cards for agricultural input purchases can restrict card spending to approved input supplier merchant categories, preventing misuse of financed funds. Real-time authorization events from card transactions are delivered via webhooks to the partner platform, enabling immediate transaction visibility, fraud monitoring, and customer notification. For platforms operating at scale, real-time transaction events are essential for maintaining accurate account balances, detecting suspicious patterns, and delivering the instant transaction notifications that customers expect from modern fintech products. The dual-channel payment architecture of Wireless — covering both USSD for basic connectivity and cards for internet connectivity — reflects a practical response to Nigeria's heterogeneous digital infrastructure reality. Platforms that deploy only card or only online payment channels systematically exclude the portions of their potential market that don't have internet access or smartphone capability. Wireless's combined infrastructure removes this trade-off, enabling payment acceptance across the full user base a Nigerian platform serves.

Swiftmodem SMS API is a Nigerian SMS gateway and telecommunications platform providing bulk SMS, USSD, and messaging services. The Swiftmodem SMS API enables Nigerian businesses to send SMS, manage USSD applications, and handle customer communication. Nigerian SMEs, fintech platforms, and e-commerce businesses use Swiftmodem for affordable bulk SMS, transactional messaging, OTP delivery, and customer notifications with local Nigerian payment options in naira.

Sendchamp is a Nigerian-founded multi-channel customer messaging platform providing a unified API for SMS, WhatsApp Business, voice OTP, and email — built specifically for Nigerian and African market conditions, with NGN pricing, Nigerian carrier-optimized SMS delivery, DND bypass for transactional messages, and WhatsApp Business API access in a single developer-friendly platform. Sendchamp is one of the few platforms that natively combines all the messaging channels Nigerian businesses actually use — SMS for broad reach, WhatsApp for engagement, voice OTP for reliability — in one product built by a team that understands Nigerian telecommunications deeply. The SMS API delivers messages to all four Nigerian mobile networks (MTN, Airtel, Glo, 9mobile) with competitive NGN pricing, making it economically attractive for Nigerian businesses that previously found dollar-denominated global SMS platforms expensive at scale. Transactional messages use DND-bypass routes compliant with NCC regulations, ensuring OTPs, bank notifications, and health alerts reach all recipients. Promotional messages respect DND opt-outs. The same API key handles both routing scenarios, with the message type parameter determining which route is used. WhatsApp Business API through Sendchamp gives Nigerian businesses access to the Meta WhatsApp Business Platform with Sendchamp managing the business verification and API onboarding process. This is Sendchamp's most differentiated feature for the Nigerian market: WhatsApp has extraordinary penetration in Nigeria with almost universal usage among smartphone users, making WhatsApp the highest-engagement channel for customer communication. Sendchamp's WhatsApp API supports template messages (one-way notifications sent outside of conversation windows), session messages (customer service replies within 24-hour conversation windows), and interactive messages with buttons and list menus that drive user actions within WhatsApp. Voice OTP provides phone call verification as an alternative or fallback to SMS OTP. Sendchamp's voice OTP calls the recipient's number and reads the code using text-to-speech — a critical fallback for reaching Nigerian users on DND, users in areas with poor SMS delivery, or users who prefer call verification. Sendchamp's automatic OTP retry logic can fall back from SMS to voice after a configurable timeout, ensuring maximum verification success rates for Nigerian apps handling user authentication. Email delivery through Sendchamp provides transactional email delivery for Nigerian applications — account verification emails, password resets, order confirmations, and receipt delivery. Sendchamp manages email sending infrastructure including SPF/DKIM setup, IP reputation management, and bounce handling, so Nigerian developers focus on email content rather than email deliverability engineering. The Sendchamp dashboard provides a unified view of all channel analytics — SMS delivery rates, WhatsApp message read rates, email open rates, voice call success rates — giving Nigerian marketing and product teams a consolidated view of customer communication performance across all channels. Sendchamp pricing uses a freemium model with a free tier providing limited monthly messages to allow Nigerian startups to build and test without upfront costs. Paid plans are priced in NGN with pricing tiers based on monthly message volume, scaling affordably from startup to enterprise. The combination of Nigerian-native understanding, multi-channel API in one platform, and NGN pricing makes Sendchamp one of the top choices for Nigerian businesses building customer communication infrastructure.

Max API is a comprehensive telecommunications and digital services platform providing SMS, voice, and data solutions. The Max API enables developers to integrate SMS sending, voice calls, USSD, and messaging capabilities into applications. Nigerian fintech, e-commerce, and telecom applications use Max API for reliable SMS delivery, two-factor authentication, promotional messaging, and customer communication across Nigeria.

D-TONE is a mobile messaging platform providing SMS, voice, and USSD APIs across 200+ countries and territories including Nigeria. The D-TONE SMS API enables developers to send and receive SMS, manage campaigns, and track delivery with real-time reporting. Nigerian fintech platforms, e-commerce sites, and service businesses use D-TONE for bulk SMS, OTP delivery, two-factor authentication, and customer communication with reliable African network coverage.

Smile Telecoms SMS API is a Nigerian telecom provider offering SMS services, USSD applications, and telecommunications solutions. The Smile Telecoms SMS API enables bulk SMS delivery, USSD menus, and mobile communication services directly from Nigeria primary telecom infrastructure. Nigerian businesses, fintech platforms, and government agencies use Smile Telecoms SMS API for reliable SMS delivery, USSD applications, and customer communication leveraging local Nigerian network infrastructure.

EasySendSMS is an African-focused bulk SMS API platform with coverage across Nigerian and other African mobile networks, providing businesses and developers with a simple, affordable interface for sending bulk SMS campaigns, transactional messages, and OTP codes to Nigerian subscribers on MTN, Airtel, Glo, and 9mobile. The platform is designed with African market requirements in mind — local currency pricing options, support for African sender ID registration processes, and routing infrastructure optimized for African carrier connectivity — making it a practical choice for pan-African businesses operating across multiple African countries including Nigeria. Bulk SMS sending through EasySendSMS handles the delivery of marketing messages, promotional campaigns, and mass communications to Nigerian audiences. A single API call specifying the message text and recipient list triggers delivery to all Nigerian numbers on the list, with the platform managing carrier routing across all four networks simultaneously. This is the core functionality for Nigerian businesses running SMS marketing campaigns — retail promotions, event announcements, customer re-engagement campaigns, and seasonal offers that reach Nigerian mobile subscribers directly in their message inbox. Transactional SMS through EasySendSMS covers the critical time-sensitive messages Nigerian businesses need to send reliably: OTP codes for user authentication, transaction confirmations from fintech apps and e-commerce platforms, shipping status updates from logistics companies, appointment reminders from healthcare providers, and account alert notifications from banks and savings platforms. These transactional messages require higher delivery priority and DND bypass routing, which EasySendSMS provides through NCC-compliant routing rules that distinguish between promotional and transactional traffic. Multi-country African coverage means Nigerian businesses with operations or customers in other African countries — Ghana, Kenya, South Africa, Egypt, Ethiopia, Tanzania — can use a single EasySendSMS account and API to reach mobile subscribers across multiple African markets without managing separate SMS provider relationships per country. For Nigerian conglomerates, remittance platforms, and pan-African fintech companies, consolidated multi-country SMS routing through EasySendSMS simplifies vendor management. Sender ID configuration through the EasySendSMS platform follows African regulatory requirements for sender ID registration. In Nigeria, the NCC mandates registration of alphanumeric sender IDs used for commercial messaging, and EasySendSMS facilitates this registration process. Registered sender IDs ensure messages display a recognizable brand name rather than an anonymous number, building recipient trust across Nigerian and other African markets. Delivery tracking is provided through the EasySendSMS dashboard and API callbacks, showing delivered, pending, and failed status for each message in a batch. Nigerian businesses running time-critical campaigns can monitor delivery progress in real time and investigate delivery failures for specific numbers or network segments, allowing proactive troubleshooting of any routing issues. API integration uses standard HTTP requests with API key or username/password authentication, providing a low-barrier integration path for Nigerian developers. The simple request structure — URL, credentials, sender, recipient, message — can be integrated in a single afternoon by a junior Nigerian developer. Pricing uses a credit-based model with African-market-sensitive rates, making EasySendSMS economically competitive for Nigerian businesses sending both low volumes for transactional use and high volumes for marketing campaigns.

Voice and messaging API platform for communications integration. Kirusa provides APIs for USSD, voice services, and messaging. Enables developers to build voice and text-based applications.

Squad is a Nigerian payment gateway and developer-first payment infrastructure platform operated by HabariPay Limited, the fintech subsidiary of Guaranty Trust Holding Company (GTCO) — the parent company of Guaranty Trust Bank, one of Nigeria's Tier 1 commercial banks. This institutional backing gives Squad a unique position in the Nigerian fintech ecosystem: it combines the regulatory standing of a CBN-licensed commercial bank group with a modern API-first developer experience. Squad is available at squadco.com and provides documentation at docs.squadco.com. The Squad API is RESTful with JSON payloads. Authentication is via Bearer Token — developers obtain a secret key from the Squad dashboard and pass it in every request as Authorization: Bearer sk_test_xxxx (sandbox) or Authorization: Bearer sk_live_xxxx (production). All amounts are passed in Naira (NGN), unlike some Nigerian gateways that require amounts in Kobo. Squad's payment gateway supports card payments (Verve, Visa, Mastercard), bank transfers, and USSD — the three primary payment channels used by Nigerian consumers. The standard integration follows a three-step flow: initialize a transaction by posting to the Squad initiate endpoint with amount, email, and a unique transaction reference; display the Squad checkout widget to the customer; and verify the transaction on your server after the customer completes payment. Squad provides both a hosted checkout page and an embeddable inline SDK for seamless checkout experiences. One of Squad's most notable differentiators is its fee structure. The payment gateway charges a percentage fee capped at ₦1,500 per transaction — lower than Paystack (₦2,000 cap) and Monnify (₦2,000 cap). For virtual account collections, Squad charges a percentage capped at ₦1,000, which is again among the lowest caps in the Nigerian market for bank transfer collections. Payment links (used for social commerce and invoicing) are charged at 1% for local transactions and 3.5% for international transactions. This pricing advantage makes Squad particularly attractive for businesses processing high-value transactions, where the cap limits the absolute cost per transaction regardless of size. Squad's Virtual Accounts feature assigns a dedicated bank account number to each customer for use in collections. Businesses can create virtual accounts for individual customers — when a customer transfers any amount to their dedicated account, the Squad webhook fires and the balance is credited in real time. This is widely used by Nigerian savings apps, investment platforms, and bill payment services where customers top up wallets via bank transfer. The Subscription API allows platforms to create recurring billing products. When a customer first pays via Squad, the platform receives a unique charge token tied to that customer's card. Future charges can be triggered by passing this token without requiring the customer to re-enter card details — enabling automatic monthly subscriptions, usage-based billing, and installment plans for Nigerian consumers. Squad also provides a Payouts API for disbursing funds to any Nigerian bank account. Developers submit a destination bank code, account number, and amount, and Squad executes the transfer. Payout pricing is competitive and the API supports both single and bulk transfers. The BVN verification endpoint available through Squad allows platforms to look up a Bank Verification Number and return the associated name and basic identity information. This is commonly used by Nigerian lending products and fintech apps to confirm user identity as part of CBN-required KYC processes. The Squad sandbox environment provides full test mode access. Developers can test all features — gateway payments, virtual accounts, subscriptions, payouts, and BVN verification — using test credentials without processing real transactions. Moving to live requires completing Squad's business onboarding, including submitting CAC registration, director BVN, and a valid business bank account. From a compliance perspective, HabariPay Limited is a CBN-licensed Payment Service Provider operating under the regulatory oversight of the Central Bank of Nigeria. GTCO's banking license adds an additional layer of institutional compliance. Squad is also PCI-DSS certified, ensuring that card payment data is processed and stored to the highest security standards. Squad runs an annual Hackathon for Nigerian students and early-career developers — Squad by GTBank Hackathon — providing cash prizes and API credits to winners. This investment in the developer community has built significant goodwill among Nigeria's emerging developer ecosystem. Known challenges: Squad's documentation, while functional, is less comprehensive than Paystack's. Some advanced integration patterns (split payments, multi-vendor marketplace flows) are not as fully documented. The Squad developer community is smaller than Paystack's, which can make troubleshooting harder for niche use cases. Frequently Asked Questions: Is Squad backed by GTBank? Yes — Squad is operated by HabariPay Limited, which is a subsidiary of Guaranty Trust Holding Company (GTCO), the same holding company that owns GTBank. What is the fee cap advantage? Squad's gateway fee is capped at ₦1,500 versus ₦2,000 for Paystack and Monnify — meaning on large transactions, you save ₦500 per collection. Does Squad support dollar transactions? Squad supports international card payments (Visa/Mastercard). Settlement is in NGN. Can I test Squad without registering a business? Yes — create a free developer account and use the sandbox with test credentials before submitting any business documents.

Alat by Wema is Wema Bank's comprehensive digital banking and payments platform providing APIs for payment processing, account management, and embedded finance solutions. The platform enables businesses and fintech partners to accept payments through multiple channels (card payments, bank transfers, bank details/static accounts, USSD), manage accounts, and integrate banking services. Alat by Wema powers AlatPay, Wema's battle-tested payment gateway, and offers partner banking APIs for approved fintech partners. Key capabilities include: Instant payment processing with transparent pricing and no hidden charges, Multiple payment channels (Card, Bank Transfer, Bank Details, USSD, Static Account), Real-time merchant dashboard, Dedicated developer support, Unlimited transaction processing, Sandbox environment for testing, Partner banking APIs for embedded finance. Nigerian e-commerce platforms, service providers, USSD-based businesses, and fintech companies use Alat by Wema for reliable payment acceptance and banking integration. API Base URL: https://apibox.alatpay.ng. Support: alatpaysupport@wemabank.com. Powered by WEMA Bank.