API Design & Integration
REST and GraphQL APIs that connect your systems reliably, securely and with clear contracts.
APIs are the contracts between your systems, partners and apps. Poorly designed ones leak internal details, break clients on every change and become hard to secure.
We design APIs contract-first, document them, version them and build the integrations that connect your applications to payment providers, CRMs, ERPs and other third-party platforms.
What's included
- API design and specification (OpenAPI for REST, schemas for GraphQL)
- Authentication and authorization (OAuth 2.0, API keys, role-based access)
- Integrations with third-party platforms and internal systems
- Webhooks and event-driven processing with retries and idempotency
- Rate limiting, input validation and error handling conventions
- Developer documentation and versioning strategy
Who it's for
- Products that need a public or partner API
- Companies whose systems exchange data through manual exports
- Teams consolidating several services behind one consistent API
Technologies
REST · GraphQL · OpenAPI · Node.js · Go · Stripe · Webhooks
Frequently asked questions
REST or GraphQL?
It depends on the consumers. REST is simpler to cache and secure for most partner integrations; GraphQL helps when many clients need different shapes of the same data. We recommend one per use case.