Backend API foundations

0.6–2.6 weeks typical Fixed quote after scoping

The API contract, the service scaffold, and authentication on every endpoint.

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What we build

The API contracts the rest of the system is built against, the service and its CI, and authentication enforced on every endpoint rather than most of them — plus, when outside developers build against it, documentation for them. Every other backend component depends on this one. Where the service runs — environments, networking, secrets — is cloud infrastructure development, not this member.

What you get

  • A service repository with a CI pipeline building and testing every push
  • HTTP endpoints implementing the agreed API contract
  • A test proving every route rejects unauthenticated requests
  • An end-to-end test suite running against in-memory fakes, green with no external services running

How the work unfolds

  1. Design the API contracts
  2. Scaffold the service and CI
  3. Implement authentication on every endpoint
  4. Document the API for consuming developers

What shapes the price

Before you see a number, our scoping conversation asks:

  • How many different kinds of things will the API manage — customers, orders, bookings, that sort of thing? Each resource is its own contract, validation and routes.
  • Will developers outside your team build against this API? Consumer-grade documentation is real work that an internal-only API can skip.

How an engagement starts

This work builds on Discovery workshop, so scope, boundaries and constraints are agreed before anything is built.

Teams often combine it with:

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