API Development Services for Every Integration — Web to Mobile
We design and build secure, documented, versioned APIs using REST, GraphQL, and WebSocket patterns — ready for any client to consume.
What are you building?
Tell us what you need — scope and estimate in 24 hours, free.
API Development Services
REST APIs
CRUD-based resource APIs with proper status codes and error handling.
GraphQL APIs
Flexible query APIs with schema, resolvers, and subscriptions.
WebSocket APIs
Real-time bidirectional APIs for live data and chat.
Auth & Security
OAuth 2.0, JWT, API keys, rate limiting, and IP allowlisting.
OpenAPI Docs
Swagger/Redoc auto-generated documentation with examples.
API Versioning
URL, header, and content-type versioning strategies.
API Capabilities
Express & Fastify
Production-grade Node.js API frameworks.
Apollo Server
GraphQL with resolvers, dataloaders, and subscriptions.
Contract Testing
Pact and Dredd for API contract verification.
Performance
Response caching, pagination, and database query optimisation.
Security
Input validation, SQL injection prevention, CORS, and CSP.
Observability
Structured logging, tracing, and endpoint latency monitoring.
API Development Process
Design-First
OpenAPI spec written and reviewed before any code is written.
Core Implementation
Endpoints, validation, auth, and error handling.
Testing
Unit, integration, and contract tests with 80%+ coverage.
Documentation & Deploy
Swagger docs, rate limits, and production deployment.
- Figma design source files
- Clean documented codebase
- CI/CD pipeline
- SEO and analytics setup
- Performance report
API Stack
Why Digital Web Weaver for APIs?
Design-First
API spec reviewed before coding — avoids expensive rework.
Secure by Default
Auth, rate limiting, and input validation on every endpoint.
Contract Tested
Consumer-driven contract tests prevent breaking changes.
Observable
Every API ships with logging, tracing, and latency dashboards.
API Development Company Built Around the Contract, Not the Afterthought
As an API development company based in Vadodara, India, and delivering to teams across the UK, South Africa, and Ivory Coast, we treat the API as the contract every other system depends on — not a wrapper bolted onto a finished app. We work design-first, writing and reviewing the OpenAPI spec before a line of implementation exists, so your web frontend, mobile client, and third-party consumers all agree on shape and behaviour before anyone builds against it. Whether the API powers a public product, a partner integration, or the backend for a SaaS platform, we build it versioned, documented, and secure by default.
REST, GraphQL, and real-time — chosen for the job
There is no single correct API style, only the right one for your clients. We reach for REST when you need predictable CRUD resources and clean caching, GraphQL when a data-heavy dashboard or app needs to fetch exactly what it renders, and WebSocket patterns when live data, chat, or collaborative editing demand it. Most products end up needing more than one, which is why our engineers work across Express, Fastify, and NestJS, and lean on our Node.js developers when a build needs deeper backend firepower. The same endpoints feed our mobile app development work, so the client and the API it consumes are designed together rather than stitched up at the end.
Secure, observable, and built to keep its promises
Every endpoint ships with authentication — OAuth 2.0, JWT, or API keys — plus rate limiting, input validation, and CORS configured before launch, not patched in after an incident. Consumer-driven contract tests catch breaking changes before they reach production, and structured logging, tracing, and latency dashboards let you see exactly how each route behaves under load. As your product grows, that discipline scales cleanly into microservices and reaches outward through our API integration practice for payment gateways, CRMs, and ERPs. Tell us what needs to talk to what, and we'll scope your API in a free estimate.