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API development·
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00API development
The contract is the product

API development
and design

REST and GraphQL APIs designed as products — stable contracts, clear errors and documentation that lets partners integrate without a call with your team.

What good API work includes

Four areas that decide whether an API is easy to live with for years.

01

Design and contracts

Resources, naming, pagination and errors designed up front and written as an OpenAPI spec, before the first endpoint is coded.

02

Security and access

Authentication, scopes, rate limits and audit logs, so one client's mistake or abuse does not become everyone's outage.

03

Versioning and stability

A change policy and versioning that lets you evolve the API without breaking the integrations already in production.

04

Documentation and developer experience

Reference docs, examples, a sandbox and SDKs where it makes sense, so a partner is productive on day one.

From spec to production

Contract first, so frontend, mobile and partners can work in parallel.

01 / 03

Design the contract

We workshop the use cases and agree the API spec with the teams that will consume it.

OpenAPIUse casesReview
02 / 03

Build and test

Implementation with contract tests, so the code cannot drift from the documented behaviour.

ImplementationContract testsCI
03 / 03

Run and evolve

Monitoring on latency and errors, usage analytics per client and a deprecation process for the day you need to change something.

MonitoringRate limitsVersioning

What we work with

The style follows the consumers: REST for most, GraphQL or gRPC where they earn it.

Styles
RESTGraphQLgRPCWebhooks
Backend
Node.jsNestJSGoPostgreSQL
Tooling
OpenAPIPostmanAPI gatewayOAuth 2.0

Need an API partners
can actually use?

Tell us who will consume it and what they need to do. We will start with the contract.

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