API development that gets your systems talking to each other

An API is how one piece of software asks another for data or tells it to do something. It lets your website read stock levels from the warehouse system, or lets your billing tool create an invoice the moment a job is marked done. The work splits into two parts: building your own APIs for others to use, and connecting to the APIs of tools you already pay for.

• REST API development

  Clear, predictable endpoints with documented behavior and sensible error messages.

• Third-party integration

  Payment, CRM, accounting and shipping tools connected, with error handling for the cases that happen in real use.

• Authentication and access

  Token-based login and role-based permissions, so an API only exposes what it should.

• Data modeling

  The data structure is designed before the build, because most API problems turn out to be data problems.

• Performance and caching

  Query work and caching that keep response times low as usage grows.

• Documentation and handover

  Every endpoint written up, so the next developer does not have to read the code to use it.

• Staff copy data between systems. Weekly exports and imports are slow and full of typing errors. An API does the same job in seconds.
• Your systems disagree with each other. The same customer is entered twice and the two records drift apart.
• A tool you rely on has no integration. When the vendor will not build the connection, a custom one fills the gap.
• You want to share data with partners or customers. An API shares exactly the data you choose, without opening up everything else.
• An existing API is slow or unreliable. Timeouts and silent failures usually trace back to the data layer, and are usually fixable.

Node.js with Express or Nest.js, Python with FastAPI and TypeScript throughout. PostgreSQL, MySQL and MongoDB with Prisma, TypeORM or Mongoose. Redis and BullMQ for caching and background jobs, and webhooks where they fit. If you already have a stack, we work inside it instead of rewriting it.

1. Understand the systemsWe map what exists, where the data lives and what is done by hand today.
2. Design the contractEndpoints, request and response shapes, authentication and errors are agreed in writing before any code.
3. Build and testShort build cycles with tests written alongside the code.
4. IntegrateWe connect the API to the systems that use it and handle the edge cases real data brings.
5. Document and hand overDocumentation, access details and a walkthrough for whoever maintains it next.

• We map the systems before we quote. The price follows discovery, so it reflects the real work.
• You talk to the engineers building it. No account manager passing messages back and forth.
• Error handling is part of the build. Every integration is designed for services that are slow, down or return something unexpected.
• If an integration is not worth building, we say so. Sometimes a setting or an existing connector does the job.