API development and integration
Integration work is where estimates go wrong. The API is rarely the hard part — the hard part is the undocumented behaviour, the rate limits, and what happens when the other side is down.
Why teams come to us
What this fixes.
- Data re-keyed between systems
- Integrations that break silently
- No API for partners to build against
- Point-to-point connections nobody can map
Capabilities
What the work covers.
API design and build
REST and GraphQL interfaces with versioning, pagination and error semantics thought through up front.
Payment and messaging
Payment gateways, mobile money, SMS and email — with idempotency and reconciliation handled properly.
Business system integration
ERP, CRM and accounting connections, including the ones that only speak scheduled file transfer.
Resilience
Retries, backoff, circuit breakers and dead-letter queues, so one slow dependency does not take the system down.
Documentation and sandboxes
Reference documentation and a test environment, so partners can integrate without phoning you.
What you get
API and reference documentation
Sandbox environment
Monitoring and alerting on integrations
Runbook for third-party outages
- TypeScript
- Node.js
- GraphQL
- OpenAPI
- Redis
Questions
Before you ask.
There is usually a route — scheduled exports, a partner endpoint, sometimes a supported file drop. We will scope it honestly, including when the answer is that it cannot be done reliably.
Where we have done this
Related work.
Talk to us about api development and integration
Send a short brief and we will tell you within two working days whether we are the right fit.
Start a project