Production-grade API development
Production-ready REST, GraphQL and webhook APIs — OpenAPI docs, versioning, rate limiting, JWT and OAuth2, idempotency and monitoring.
An API that ships to production cannot fall over on the first traffic spike, must not silently fail when a partner sends something unexpected, and cannot end up as "ten endpoints nobody ever documented". We build APIs partners can integrate themselves through your OpenAPI docs, with clear rules around versioning, authentication and rate limiting.
What we deliver
- OpenAPI 3.x specification — both the docs and the source of contract tests
- Versioning strategy (URL or header), backward-compatibility policy
- Authentication (JWT, OAuth2, API key) and SCIM when enterprise needs it
- Rate limiting per client and endpoint, with proper 429 responses
- Idempotency on write endpoints and a correlation ID for tracing
- Webhook delivery with retry, signature verification and a replay tool
- Monitoring (latency, error rate per endpoint) and alerting
When to call us
- You are opening an API to partners or a mobile app and need a production-serious setup
- The existing API has 100 endpoints and zero documentation
- You need a GraphQL gateway in front of multiple backend services
- Webhooks fail unpredictably and nobody knows why
How we work
Audit of the existing API or discovery for a new one → OpenAPI design and stakeholder review → implementation with contract tests → load testing → soft launch with a pilot partner → general rollout. After launch we run a continuous DX review based on partner feedback.
Tech stack
- Node.js
- TypeScript
- Fastify
- NestJS
- GraphQL
- PostgreSQL
- Redis
- OpenAPI
Frequently asked questions
Related services
Custom web applications
Bespoke applications when SaaS cannot model your process — Next.js + TypeScript on the front, Node or Python on the back, PostgreSQL as the primary store.
ExploreSoftware developmentMicroservices
Domain decomposition, message bus (Kafka, RabbitMQ, NATS), OpenTelemetry observability and Kubernetes deploys.
ExploreIntegrationsAPI integrations
Marketplaces, couriers, accounting tools and SaaS — every one with a different API, different rules and quirks, hidden behind a single interface for your shop or ERP.
ExploreGot a complex software challenge?
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