Top API Development & Integration Agency in Nairobi

Connect Everything. Automate Anything.

Your systems should talk to each other — automatically, reliably, securely. Techhold Developers builds production-grade REST, GraphQL, and webhook APIs and integrates M-Pesa, ERPs, CRMs, banks, and third-party tools into seamless workflows.

Book Free API Discovery Call → Explore Services
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150+ APIs & Integrations
⚡
< 100ms Average Response
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99.99% Uptime Target
✓
200 OK
api.techholddev.com/v1
GET /api/v1/orders/:id
1// Fetch order with payment status
2const order = await api.getOrder(id);
3
4return {
5  status: 'paid',
6  amount: 7600,
7  currency: 'KES',
8  provider: 'mpesa',
9};
✓ 200 OK · 42ms · cached
{ "id": "ord_9xk3", "total": 7600, "paid": true }
🚀
99.99% Uptime
The Hidden Cost

Why Disconnected Systems Bleed Kenyan Businesses

Every manual data entry, every delayed report, every missed integration is revenue and time lost silently, every single day.

🧩

Disconnected Systems

Your ERP, CRM, eCommerce, and finance tools don't talk — teams work in silos.

✍️

Manual Data Entry

Staff re-typing data across systems introduces errors, delays, and wasted hours.

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Slow Processes

Orders, payments, and updates take hours or days — instead of seconds.

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No Real-Time Visibility

Leaders can't see current data because systems report at different times.

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Security Gaps

Ad-hoc integrations leak credentials and expose sensitive business data.

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Capped Scale

Manual workflows don't scale — you can't double revenue without doubling headcount.

What We Offer

API Development & Integration Services

End-to-end API and systems integration services for Kenyan businesses — from custom API builds to complex multi-system orchestration.

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API Strategy & Architecture

API design, versioning strategy, and integration architecture.

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REST API Development

Robust, well-documented REST APIs with modern security and versioning.

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GraphQL API Development

Flexible GraphQL schemas with resolvers, subscriptions, and caching.

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Webhook Development

Reliable, idempotent webhooks with retries and dead-letter handling.

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API Gateway & Management

Gateway setup, rate limiting, authentication, and analytics.

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M-Pesa API Integration

Daraja API — STK Push, Paybill, B2C, C2B, and reconciliation flows.

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Bank API Integration

PesaLink, RTGS, bank feeds, and reconciliation APIs.

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ERP & CRM Integration

SAP, Odoo, Salesforce, HubSpot, and custom ERP/CRM connections.

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Third-Party API Integration

Stripe, Twilio, SendGrid, Google, Meta, and beyond.

🎛️

Middleware & Orchestration

Middleware layers that coordinate complex multi-system workflows.

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API Security & Auth

OAuth2, JWT, API keys, mTLS, and best-practice access control.

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API Analytics & Monitoring

Real-time logs, tracing, alerting, and performance dashboards.

How We Work

Our API Development & Integration Process

A disciplined, reliability-first process designed to reduce risk, ensure data integrity, and deliver APIs your teams can trust.

01 — DISCOVER

Discover & Design

System mapping, use cases, authentication, and API contract design.

02 — BUILD

Build & Document

Implementation, OpenAPI docs, sandbox environment, and test coverage.

03 — INTEGRATE

Integrate & Test

Consumer integration, load testing, and edge-case handling.

04 — OPERATE

Operate & Evolve

Monitoring, versioning, deprecation cycles, and ongoing evolution.

REST API Development

Battle-Tested REST APIs

REST remains the workhorse of modern integrations. We build REST APIs that are clean, well-documented, versioned, and reliable at scale.

  • RESTful design with clear resource modeling
  • JSON, form-data, and multipart support
  • API versioning and deprecation strategy
  • OpenAPI/Swagger documentation
  • Pagination, filtering, and sorting
  • Rate limiting, caching, and throttling
REST API development in Nairobi Kenya
GraphQL API Development

Flexible GraphQL for Complex Data

When your frontends need precise control over what they fetch — and your data is deeply connected — GraphQL is the answer. We build GraphQL APIs properly.

  • Schema-first GraphQL design
  • Efficient resolvers and N+1 elimination
  • Subscriptions for real-time data
  • Persisted queries and caching
  • Apollo, Hasura, and custom GraphQL stacks
  • Playground, introspection, and docs
GraphQL API development Nairobi Kenya
Webhook Development

Webhooks Done Reliably

Webhooks keep systems in sync in real time. The difference between a webhook that works and one that silently fails is reliability engineering.

  • Idempotent webhook handlers
  • Automatic retries with backoff
  • Dead-letter queues for failed events
  • Signed payloads (HMAC) for security
  • Delivery monitoring and replay
  • Provider webhooks (M-Pesa, Stripe, GitHub, etc.)
Webhook development and integration Nairobi
M-Pesa API Integration

M-Pesa via Daraja, Done Right

M-Pesa is central to Kenyan commerce. We integrate it via the official Daraja API with proper authentication, retries, and reconciliation logic.

  • STK Push (Lipa na M-Pesa Online)
  • Paybill and Till Number collections
  • B2C disbursements and refunds
  • C2B validation and confirmation URLs
  • Callback handling with retries
  • Automated reconciliation and reporting
M-Pesa Daraja API integration Nairobi Kenya
Core Features

Every API We Build Includes

The engineering standards that make APIs reliable, secure, and maintainable.

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OpenAPI Documentation

Interactive docs, examples, and a sandbox for consumers.

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Authentication & Authz

OAuth2, JWT, API keys, mTLS, and role-based access.

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Idempotency

Idempotency keys for safe retries on critical operations.

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Monitoring & Tracing

Real-time metrics, distributed tracing, and alerting.

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Automated Tests

Unit, integration, and load tests built into CI/CD.

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Rate Limiting & Caching

Redis-backed rate limits and intelligent caching layers.

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Versioning

Clear version strategy and backward-compatible evolution.

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Security Hardening

Input validation, secret management, and audit logging.

Systems We Integrate

Tools We Connect Every Day

Kenyan, African, and global systems — integrated properly, tested thoroughly.

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M-Pesa

Daraja API

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Airtel Money

Mobile money

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Stripe

Global cards

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Flutterwave

Pan-African

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Salesforce

Enterprise CRM

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HubSpot

Growth CRM

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Odoo

ERP platform

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SAP

Enterprise ERP

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Pesapal

Kenyan gateway

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WhatsApp

Business API

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SendGrid

Transactional email

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Africa's Talking

SMS gateway

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Google APIs

Analytics, Maps

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Meta APIs

Facebook & IG

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Custom APIs

Any REST or SOAP

Tech Stack

Technologies We Use for API Development

We choose the right stack for the right API — not the trendiest one.

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Node.js

Express, NestJS, Fastify

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Laravel

PHP APIs

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Python

FastAPI, Django

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GraphQL

Apollo, Hasura

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PostgreSQL

Relational data

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MongoDB

NoSQL data

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Redis

Cache & queues

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Message Queues

RabbitMQ, Kafka

🐳

Docker & K8s

Containerized

☁️

AWS & GCP

Cloud infrastructure

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Observability

Datadog, Grafana

What You Receive

API Development Deliverables

Every project produces documented, production-ready outputs — not just working code.

✓

API Architecture Document

Design decisions, endpoints, data models, and authentication.

✓

OpenAPI / Swagger Docs

Interactive, up-to-date documentation with examples.

✓

Production-Ready API

Clean, tested, version-controlled, and deployed.

✓

Automated Test Suite

Unit, integration, and load tests built into CI/CD.

✓

Sandbox Environment

Test environment for consumer teams to build against.

✓

Integration Setup

Third-party systems connected and tested end-to-end.

✓

Monitoring & Alerting

Real-time metrics, tracing, and alert rules configured.

✓

Security Review Report

Auth, encryption, secrets, and audit log validation.

✓

Documentation & Handover

Developer guides and knowledge transfer sessions.

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Support & Evolution Plan

Ongoing support, versioning, and enhancement roadmap.

Real Results

API Integration Case Study

How an API middleware layer removed 60 hours of manual work per week for a Nairobi firm.

API integration case study for Nairobi business

Nairobi Distribution & Logistics Firm

Problem: Orders, inventory, M-Pesa payments, and courier tracking lived in four disconnected systems. Staff re-entered data manually — 60+ hours weekly — with frequent errors and no real-time view.

Solution: Techhold Developers built a middleware integration layer with unified APIs, webhook orchestration, M-Pesa Daraja integration, and real-time sync across ERP, eCommerce, courier, and finance systems.

-92%
Manual Data Entry
+218%
Ops Throughput
99.99%
API Uptime
6
Weeks to Launch
Client Testimonials

What Our Clients Say

Real outcomes from Techhold Developers' API development and integration services.

★★★★★

"Techhold built our internal API layer and connected M-Pesa, ERP, and our courier system. Manual work dropped by over 90% and our team finally has real-time visibility."

Alice Wambui, CTO at Nairobi Distribution Firm
Alice Wambui
CTO, Nairobi Distribution Firm
★★★★★

"We exposed our platform via APIs with Techhold. Developer onboarding went from weeks to hours thanks to their clean docs and sandbox environment."

Daniel Kimani, CEO at Nairobi SaaS Platform
Daniel Kimani
CEO, Nairobi SaaS Platform
Frequently Asked Questions

API Development & Integration FAQs

Answers to the questions we hear most from Kenyan businesses.

How much does API development cost in Nairobi?
API development in Nairobi typically ranges from KES 250,000 for a focused single-purpose API to KES 3,000,000+ for complex multi-service platforms with orchestration, gateways, and enterprise integrations. Pricing depends on scope, integrations, security requirements, and timeline. Techhold Developers provides fixed-scope proposals after a free discovery workshop.
What is the difference between REST and GraphQL APIs?
REST APIs expose endpoints for each resource and are ideal for standard business use cases. GraphQL APIs expose a single endpoint with flexible queries, ideal for complex data needs and frontend teams that want precise control over what data they fetch. We build both — and recommend based on your use case.
Can you integrate M-Pesa into our system via API?
Yes. Techhold Developers integrates M-Pesa (Daraja API — STK Push, Paybill, B2C, C2B) directly into your systems for payments, disbursements, and reconciliation via secure, production-grade APIs.
How long does API development take?
A focused single-purpose API typically takes 3–6 weeks. Multi-service APIs and integration middleware take 6–14 weeks. Full platform API suites with orchestration and consumer SDKs take 3–6 months depending on scope.
How do you handle API security?
We implement OAuth2, JWT, API keys, mTLS where needed, rate limiting, IP allowlisting, secret management with vaults, encrypted data at rest and in transit, and comprehensive audit logging. Security is baked into every layer, not an afterthought.
Do you provide API documentation and SDKs?
Yes. Every API comes with OpenAPI/Swagger documentation, a sandbox environment, code examples in multiple languages, and SDKs where it adds value for API consumers.
Who owns the code after the project?
You do. Upon final payment, all intellectual property, source code, and data belong to you. We hand over all repositories, documentation, and infrastructure access.
Do you provide ongoing API support and maintenance?
Yes. We offer monthly support retainers covering monitoring, incident response, small enhancements, security patches, versioning, and SLA-based support. APIs require ongoing vigilance — we provide it.
Do you work with businesses outside Nairobi?
Yes. We deliver API development and integration services to businesses across Kenya — including Mombasa, Kisumu, Nakuru, Eldoret, and Thika — and internationally. All work is delivered remotely with regular video reviews and shared project dashboards.
Free API Discovery Call

Book Your Free API & Integration Consultation

A 60-minute session with a senior API architect to review your systems, identify integration opportunities, and outline the right approach. No obligation.

Book Consultation →
System landscape review
Integration opportunities map
API strategy recommendation
M-Pesa Daraja planning
Security & auth design
Effort & timeline estimate
Budget guidance
Integration roadmap
Coverage Across Kenya

API Development & Integration in Your City

Techhold Developers serves businesses throughout Kenya — remote-first, engineering-obsessed.

API Development Nairobi API Development Mombasa API Development Kisumu API Development Nakuru API Development Eldoret API Development Thika API Development Kenya (Nationwide)

Ready to Connect Everything?

Stop re-entering data, chasing sync errors, and stitching tools by hand. Let's build APIs and integrations that make your systems work together — automatically.

Get Started Today →