Skip to content
fernet.consultores

Digital Engineering & Automation

API Development.

Well-designed, documented and secure APIs to expose data and functions between systems.

The problem we solve.

When systems talk to each other through direct database access or files exchanged by hand, every change breaks something and nobody knows what depends on what.

What’s included.

  • API contract design
  • Development and implementation
  • Authentication and access control
  • Documentation with OpenAPI
  • Testing, versioning and observability

How we work.

Five phases, always in the same order. Select each one to see what happens in it. In full projects they map onto the stages of our method.

We understand the process, the systems involved, the constraints and how success will be measured.

We design the solution: components, interfaces, security, error handling and deployment.

We implement the API according to the agreed contract, with authentication, rate limits and observability.

We run contract and load tests and validate the documentation with the teams that will consume it.

We measure actual usage, fix issues and document so your team can maintain it.

Technical capabilities.

  • REST
  • OpenAPI
  • OAuth 2.0 and tokens
  • Version management
  • Contract testing
  • OpenTelemetry

Use cases.

Exposing data

Give controlled access to internal data for other systems.

Decoupling

Replace direct database access with an API.

Partner integration

Offer a stable interface to third parties.

Benefits for your organisation.

  • Stable integrations
  • Controlled, auditable access
  • Documentation always available
  • Changes that don't break consumers

Deliverables.

  • Deployed API
  • OpenAPI specification
  • Automated tests
  • Usage guide

Frequently asked questions.

What documentation standard do you use?

OpenAPI, so the API can be tested and clients generated automatically.

How is it protected?

With authentication, permission-based authorisation, usage limits and access logging.

Can it be monitored?

Yes, we instrument it with OpenTelemetry to see latency, errors and usage.

Shall we talk about API Development?

Tell us about your situation. If this service is not what you need, we will tell you; if it is, we will propose a concrete first step.

Request this service