API integration from Nairobi

API integration for
the systems you rely on.

Connect payment services, statutory portals, ERPs, SMS providers, and internal applications through APIs that are documented, observable, and designed around the data that must move.

API integration for
connected systems

Connecting a third-party service is part of a wider workflow. Our API integration services cover payment gateways such as M-Pesa and Stripe, logistics platforms, SMS providers, business systems, and the applications that rely on them.

We define an integration layer with clear contracts, retries where safe, useful logs, callbacks, and reconciliation. That gives the team a way to understand what happened when an external provider is slow or unavailable.

Payment connections

Connect M-Pesa, cards, banks, or other providers around the payment journey your product needs.

Callbacks and events

Receive provider updates, record state changes, and notify the right parts of your application.

Example API integration architecture

A dependable API layer

A useful API gives each system a clear contract. It should make valid requests easy to understand, make failures visible, and avoid exposing data or actions that the caller does not need.

We provide backend API development in Kenya for mobile apps, web frontends, and services such as M-Pesa. The design may include idempotency, rate limits, authentication, queues, and reconciliation depending on the workflow.

  • Clear request and response contracts
  • Retry and failure handling
  • Documentation and support notes
response.json
{
  "status": "success",
  "data": {
    "transaction_id": "LGM1293K",
    "amount": 5000,
    "currency": "KES",
    "provider": "MPESA_EXPRESS",
    "timestamp": "provider response time",
    "webhooks": {
       "delivered": true,
       "status": "recorded"
    }
  }
}

Business system
integration

Organisations often need to connect older systems with newer applications. We assess what is already in place and add the smallest useful integration layer before recommending a larger replacement.

This can include connecting Oracle or SAP systems to web dashboards, synchronising an on-premise database with a hosted application, or moving records between services with clear ownership and error handling.

We review authentication, permissions, transport, secrets, logging, and data retention as part of the integration design. The controls depend on the systems and information involved.

Integration Workflow

01
Understand the systems

Map users, records, interfaces, dependencies, and the outcome the integration must support.

02
Define the contract

Agree requests, responses, callbacks, error states, retries, and ownership.

03
Test and hand over

Test normal and failure paths, then document release, support, and reconciliation steps.

APIs for the work at hand

The right endpoint depends on the workflow. We help teams connect the services they use and keep the request, response, callback, and support details understandable.

SMS API

Messaging integrations for alerts, one-time passwords, reminders, and other customer or internal notifications.

Connect to SMS API

Airtime API

Connect airtime distribution to the carriers and use case the product supports. Suitable for rewards, staff incentives, and other approved payment workflows.

Connect to Airtime API

M-Pesa Core

The crown jewel of our Hub. Native M-Pesa integration support for C2B, B2C, and B2B Orchestration. Handle STK Pushes, reversals, and balance queries.

Connect to M-Pesa Core
Developer Experience

Documentation for the team

Good developer experience starts with clear documentation, examples, useful errors, and an agreed way to test integrations before release.

  • Working examples where useful
  • Test requests and responses
  • Error and support notes
View integration documentation →
Illustrative request shapes only. Provider endpoints, fields, and authentication requirements vary by integration.
curl -X POST https://provider.example/v1/payment-request \
  -H "Authorization: Bearer {ACCESS_TOKEN}" \
  -H "Content-Type: application/json" \
  -d '{
    "phone": "+254700000000",
    "amount": 1000,
    "reference": "ORDER_123"
  }'
const response = await fetch(process.env.PROVIDER_URL, {
  method: 'POST',
  headers: { Authorization: `Bearer ${process.env.ACCESS_TOKEN}` },
  body: JSON.stringify({
  phone: '+254700000000',
  amount: 1000,
  reference: 'ORDER_123'
  })
});
use Illuminate\Support\Facades\Http;

$response = Http::withToken($accessToken)->post($providerUrl, [
    'phone' => '+254700000000',
    'amount' => 1000,
    'reference' => 'ORDER_123'
]);

Security in the integration

Access, data handling, and failure paths are considered as part of the API design.

Transport security

Secure connections selected for the environment

Authentication

Access designed around the clients and systems involved

Permissions and limits

Only the required systems and actions are exposed

Recovery planning

Backups, retries, and reconciliation where appropriate

How we work

Clarify the system boundaries before connecting them.

We define contracts, error handling, callbacks, retries, observability, and support ownership before integrations go live.

Start with

System owners, business events, data responsibilities, and the contract each side must meet.

Plan for

Failure handling, retries, monitoring, change management, and support ownership.

Review with

The technical and operational teams who rely on the information moving correctly.

Handover includes

Documentation, operational checks, and a clear escalation path.

A useful first conversation

Bring the workflow, decision, or technical constraint that is creating the most friction. We can then decide whether discovery, a focused delivery phase, or a different next step makes sense.

Discuss a project with Statum

Need a Custom API?

Tell us which systems need to exchange information and what should happen when a request fails. We can help you define a sensible integration plan.