APIs built to be exposed, versioned, and depended on.
We specialize in designing and perfecting contract-first REST and GraphQL APIs that are secure, easy to use, and versioned — so they don’t break down when you need them most.
Contract-first API design
We model your resources and endpoints and publish a REST or GraphQL contract — an OpenAPI spec or schema — before a line of code is written, so everyone agrees on the shape up front.
Authentication & access control
OAuth 2.0, OpenID Connect, API keys, and JWTs with scope- and role-based authorization, so every request is identified and only does what it is allowed to do.
Versioning without breakage
A clear versioning strategy and backward-compatibility rules, so you can ship new capabilities without breaking the apps and partners already calling the API.
Rate limiting & resilience
Quotas, throttling, sensible timeouts, and retry behavior that keep the API stable and fair when traffic spikes — and keep one noisy consumer from degrading everyone else.
Validation & predictable errors
Strict request validation, consistent error contracts, and clean pagination, so consumers get the same predictable response shape every time instead of guessing.
Docs & developer experience
An interactive, always-current API reference with real examples, so the developers consuming your API can integrate themselves instead of opening a support ticket.
The anatomy of a production API
Returning JSON is easy. The layers around it are the work.
A real API is what a request passes through before it ever reaches your data — and all of it lives inside one published, versioned contract. Here is every layer we build.
The shape every request and response is held to — published before code.
What this layer guarantees
OAuth 2.0, OpenID Connect, API keys, or JWTs identify the caller; scope- and role-based rules decide what that caller is allowed to touch. Unidentified requests stop here.
One contract · hardened by default · versioned so consumers never break
Integrations that just work
Your own apps, mobile clients, and approved partners connect against a documented, predictable contract — so onboarding a new consumer is a self-serve task, not a project.
Safe to expose
Authentication, authorization, rate limiting, and validation are designed in from the start, so opening an endpoint to the outside world is a deliberate decision, not a risk.
Evolve without breaking anyone
A versioning discipline lets you add fields, endpoints, and capabilities while existing consumers keep working untouched — change without a coordinated migration scramble.
Yours to own and run
You receive the source, the API contract, the test suite, and a runbook. No proprietary tooling and no lock-in — your team can maintain and extend it without us.
Key Capabilities
- RESTful API design & development
- GraphQL schema design & resolvers
- Contract-first design with OpenAPI / Swagger
- OAuth 2.0, OpenID Connect, API keys & JWT authentication
- Role- and scope-based authorization
- API versioning & backward-compatibility strategy
- Rate limiting, throttling & quota management
- Request validation, pagination & consistent error contracts
- Webhooks & event callbacks
- Interactive API documentation & developer onboarding
- Contract & integration testing
- Structured logging, metrics & request tracing
Technologies
Engagement Models
API Design Sprint
- Endpoint and resource modeling
- A published OpenAPI or GraphQL contract
- Auth, versioning & error-handling strategy
- A build-ready spec your team or ours can implement
API Build
- Contract-first design workshop
- A production REST or GraphQL API
- Authentication, rate limiting & validation
- Interactive documentation with examples
- Contract and integration test suite
- Deployment with logging and monitoring
API Platform
- Everything in API Build
- An API gateway with centralized policy management
- Multiple services under one versioned contract
- A self-serve developer portal
- Onboarding and lifecycle documentation
Frequently Asked Questions
What kinds of APIs do you build?
We design and build REST and GraphQL APIs in three common shapes: internal APIs that power your own web and mobile apps, partner APIs you expose to selected integrators, and public APIs aimed at a developer audience. Every one is built contract-first, with authentication, versioning, and documentation treated as part of the build rather than an afterthought. The goal is the same in all three cases — an interface that other software can rely on without surprises.
How do you keep an API from breaking the apps that depend on it?
We agree a versioning strategy at design time and follow backward-compatibility rules: additive changes go into the current version, and anything that would break existing callers goes into a new version with a clear migration path. Consumers are never forced to change the day you ship. Combined with a published contract and contract tests, this means you can keep evolving the API while the apps and partners already using it keep working untouched.
How do you secure an API?
We build with standard, proven controls: OAuth 2.0 and OpenID Connect or API keys for authentication, scope- and role-based authorization so each caller only does what it is permitted to, strict input validation, and rate limiting to protect against abuse and runaway traffic. Traffic is encrypted in transit, and secrets are kept out of code. Security is designed into the contract from the start — it is not a layer we try to add after the API already works.
REST or GraphQL — which is right for us?
It depends on your consumers. REST is simple, cacheable, and a safe default for most public and partner APIs. GraphQL shines when clients need to fetch varied, nested data in a single round trip — common for rich mobile and single-page apps. We help you choose during the design phase based on who is calling the API and how, and we build either to the same standard. The right answer is the one your consumers find easiest to build against.
Will my team be able to use and maintain it?
Yes — that is a design goal, not an afterthought. The API ships with an interactive reference, real request and response examples, and clean, conventional code your engineers can read. We hand over the contract, the test suite, and a runbook covering deployment and common operational tasks. The aim is an API your team can extend and operate confidently on their own, whether or not you continue to work with us.
Do we own the API and the code?
Yes. The source code, the API contract, the documentation, the tests, and the infrastructure configuration are all yours. There is no proprietary framework you depend on us to maintain and no lock-in. You can keep building with us, take it in-house, or hand it to another team — the API and everything around it goes with you.
Need an API your apps and partners can actually build on?
Book a 30-minute call. We will map your endpoints, your consumers, and your auth and versioning needs — and scope an API contract worth building on.