A unified payments SDK for Kenya should make integrations feel consistent without pretending that every provider has the same APIs, setup process or transaction lifecycle. For Afrinex, that means designing a common interface around provider-specific adapters, treating callbacks as part of the payment—not an optional extra—and keeping the SDK’s role distinct from the legal obligations of the businesses that use it. The design below is a blueprint, not a description of verified Afrinex features: no implementation, launch status or test results are established here.
What a unified SDK should unify—and what it should not
Kenya’s payment system includes banks, government, financial institutions and payment system providers. Retail payments can move through channels including cards, mobile money, credit transfers, direct debits, cheques, ATMs and electronic funds transfer. That variety creates a reasonable case for a shared developer interface, but it does not make the underlying integrations interchangeable.
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Afrinex can aim to unify the parts an application needs to work with repeatedly: initiating a payment, identifying its status, receiving an outcome, and handling errors. It should not conceal which provider is involved, which credentials and account prerequisites apply, or whether an outcome is final. A common interface is useful only if developers can still reach provider-specific capabilities when their use case requires them.
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What the documented M-PESA integrations establish
Safaricom describes Daraja 3.0 as its developer platform for accessing Safaricom and M-PESA APIs for web and mobile integrations. Its introductory documentation describes RESTful interactions using HTTP verbs and JSON-encoded parameters and responses. Separately, the M-Pesa Business developer portal documents its own products and onboarding workflow. These are official integration references, not evidence that Afrinex currently supports either service.
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| Integration reference | Documented capabilities and workflow | What a unified SDK must not assume |
|---|---|---|
| Safaricom Daraja | Daraja documentation describes C2B, B2C and B2B interfaces, along with reversal and transaction-status query functionality in the documented API material. It describes asynchronous responses routed to a CallbackURL or ResultURL, and use of the appropriate public-key certificate for sandbox or production credentials. (Safaricom Daraja developer documentation.) | Endpoint access depends on the relevant product and account. The documentation is not proof that all endpoints are available to every account or that Afrinex has integrated them. |
| M-Pesa Business developer portal | The portal describes C2B, reversals and transaction-status queries. Its workflow includes account registration and activation, access to API documentation and test calls, API keys and public keys, sandbox testing, review of account details and transaction reports, and a Go Live process. It provides Java and Python examples and an optional Java library file. (M-Pesa Business developer portal.) | This is a separate portal and workflow; its endpoint list and onboarding steps should not be treated as identical to Daraja’s. |
Safaricom’s Daraja getting-started material also lists Curl, Ruby, PHP, Python, NodeJS and Java examples. Those are examples in the provider documentation, not a claim about Afrinex’s supported languages.
Represent a payment lifecycle, not just an API call
A caller may receive an initial response before the provider has delivered the final transaction outcome. Daraja’s documentation describes asynchronous responses, so a successful request submission and a completed payment must be represented as different events. A sensible neutral model would give an application a stable payment or intent identifier, record the provider’s transaction reference when available, and distinguish states such as created, pending, succeeded, failed and reversed. The exact state vocabulary should be documented and mapped carefully to each provider’s actual responses.
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That model is a design recommendation for Afrinex, not a verified feature. Provider-specific codes and raw response details should remain inspectable alongside any normalized status. Normalization helps application code handle common cases; preserving source details helps developers diagnose edge cases and reconcile a transaction with the provider.
Make callbacks part of the payment path
Daraja directs asynchronous outcomes to a CallbackURL or ResultURL. Its introductory documentation advises deploying a reachable HTTP listener with POST methods and warns that if a server is unavailable, the gateway can record a 503 response and discard the result. An integration therefore cannot safely treat the initial API response as the only record of what happened.
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For a unified SDK, callback handling belongs in the lifecycle design. A production-ready implementation should define how the host application exposes and secures callback endpoints, how incoming events are associated with the right transaction, and how duplicate or out-of-order notifications are handled. Idempotent processing is a useful design goal: receiving an event twice should not cause the application to fulfil an order twice. These are recommendations for the architecture; no Afrinex callback implementation or behavior is established.
Callbacks are also not a substitute for reconciliation. Where a provider documents transaction-status queries, an integrator can use them to investigate a transaction whose state remains unclear. Reversal support should likewise be modelled as a provider operation with its own outcome, rather than silently rewriting a completed payment as though it never occurred.
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Keep provider adapters, credentials and environments explicit
A provider adapter can translate between Afrinex’s proposed common operations and a particular provider’s request fields, response formats, error codes and callback conventions. The shared interface should not force a provider to support an operation it does not document. If an operation is unavailable for a configured product or account, the SDK should make that limitation visible rather than inventing a universal success path.
Configuration should make the selected provider, account context and environment unambiguous. Daraja documentation distinguishes sandbox and production credentials and calls for the corresponding public-key certificate. The M-Pesa Business portal describes its own account activation, sandbox testing, credential and review steps before its Go Live process. These workflows should remain provider-specific in the SDK’s setup instructions; a generic “add your API key” step would hide material differences.
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For a developer, the goal is an explicit boundary between test and live traffic: credentials and certificates should not be accidentally reused across environments, and a sandbox result should not be mistaken for evidence of production readiness. How Afrinex currently handles configuration, credential storage or environment separation is not established.
Separate SDK integration from payment-service regulation
The Central Bank of Kenya describes the National Payment System Act (2011) and National Payment System Regulations (2014) as the framework for regulating and supervising payment systems and payment service providers. The Regulations provide for PSP authorization and oversight, designation of payment systems and instruments, and anti-money-laundering measures. The CBK also describes mobile phone money-transfer operators as authorized PSPs under that framework.
Those general rules do not determine whether a particular SDK author, platform or merchant is itself a PSP. That question depends on the actual activity and operating model and requires legal analysis; this overview is not legal advice. An SDK can facilitate a technical connection, but it should not imply that using the SDK settles a customer’s or platform’s authorization obligations.
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1Scan for outdated or missing drivers - takes under a minute2Clear out junk files and repair common Windows errors3Fix the driver behind crashes, sound loss and screen glitchesAs of October 4, 2026, the National Treasury and CBK’s Draft National Payment System Policy, dated August 2026, and the accompanying draft bill described in the CBK’s September 2026 notice are proposals, not enacted replacements for the existing framework. The draft policy identifies interoperability across banks, mobile money operators and fintech platforms, alongside efficiency, affordability, inclusion, risk management, consumer protection and regional and global payments as modernization aims. It states: “The Policy’s overall objective is to promote a modern, integrated, and resilient payment system that facilitates secure and efficient transfer of funds across all sectors of the economy.” Its policy direction provides context for interoperability, but it should not be presented as current law.
A practical boundary for Part 1
The foundation for Afrinex is not a claim that one API can erase provider differences. It is a disciplined contract between a shared payment model and adapters that preserve each provider’s documented behavior. The next implementation decisions—state mapping, callback processing, configuration, reconciliation and error visibility—need to be described as Afrinex facts only when supported by its actual code, documentation or test evidence.
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