API Integration Services
If it has an API, we'll connect it. If it doesn't, we'll find the way in.
- From
- ₹45,000 per integration
- Timeline
- 1–3 weeks
Every business eventually hits the integration that no off-the-shelf connector covers — the legacy ERP, the regional logistics provider, the industry-specific software with a PDF for documentation.
That's the work we do: read the docs, handle the auth, respect the rate limits, deal with the pagination, and build something that keeps working when the other side returns an unexpected error.
What we build
- REST, GraphQL, SOAP and webhook integration
- OAuth 2.0, API keys, JWT, HMAC signing and certificate auth
- Rate limiting, exponential backoff and retry with idempotency keys
- Pagination, bulk endpoints and incremental sync strategies
- Webhook receivers with signature verification and replay protection
- Error handling, dead-letter queues and alerting
- API documentation when the vendor's is missing or wrong
- Middleware layers so multiple systems share one integration
Examples of this work
Concrete builds rather than capability statements.
Legacy ERP bridge
Built a middleware layer over a 15-year-old on-prem ERP with only a SOAP interface, exposing clean REST endpoints that modern tools could consume.
Courier aggregation
Single interface over four courier APIs with different auth schemes and response formats, so the order system talks to one endpoint instead of four.
What you get
- Working integration with documented endpoints and payloads
- Error handling, retry policy and alerting
- Credential storage and rotation procedure
- Technical documentation for your developers
Tools we use here
- n8n
- Node.js
- PostgreSQL
- Redis
- Postman
- REST
- GraphQL
API integration — questions we get asked
What if the system has no API at all?
There's usually a way — a database view, a scheduled file export, an email report we can parse, or browser automation as a last resort. We'll assess what's available and tell you honestly if the only option is fragile.
Who owns the code?
You do. We hand over source, documentation and deployment instructions, and you're free to take it to any developer afterwards.
Want API integration working in your business?
Book a free 30-minute audit. We'll tell you what it would take, what it would cost, and whether it's worth doing at all.
No obligation · Reply within 1 business day · NDA on request