01
Businesses stitching together legacy systems — Tally, Zoho, Shopify, WhatsApp, SMS gateway — that were never designed to talk.
Fits you
Blueprint in 2 weeks
14M/d
Requests
190ms
P99
99.99%
Uptime
API Development
Every system in your business, finally talking to each other.
Your CRM doesn't know what your accounting software sold. Your warehouse doesn't know what your storefront shipped. Your mobile app calls a 2012 PHP endpoint that times out every third request. We fix this.
Storefront
→Warehouse
→CRM
→Accounting
→Mobile app
SaaSLogisticsFintechE-commerceHealthtechManufacturingSaaSLogisticsFintechE-commerceHealthtechManufacturingSaaSLogisticsFintechE-commerceHealthtechManufacturing
Who this is for
Where our APIs earn their keep.
If any of these sound like you, we should talk.
02
Product teams shipping mobile + web + admin where a shared API layer is the foundation.
Fits you
03
Enterprises exposing data to partners, dealers, integrators — where API security, rate limiting, and documentation matter.
Fits you
04
SaaS founders whose v1 API is a tangle of express routes and is blocking the next hire from being productive.
Fits you
The proof
How our APIs are structured in production.
The layers that separate "works in staging" from "works under load, with retries, at 3AM".
LAYER 1
Contract layer
OpenAPI / GraphQL schema first. Versioned, documented, SDK-generated. No "check the code to find out."
LAYER 2
Business layer
Stateless handlers. Input validated, domain logic isolated, side-effects explicit. Easy to test, hard to break.
LAYER 3
Infra layer
Rate limiting, auth (JWT / OAuth / API keys), retries, idempotency keys, structured logs, traces, alerts — baked in.
What we build
Types of APIs we ship.
01
Internal APIs
For your own products — mobile, web, partner.
02
Public APIs
For customers and integrators — with SDKs and docs.
03
Integration middleware
Connect Tally / Zoho / Shopify / SAP to each other.
04
Webhooks & events
Real-time notifications, event-sourced architecture.
Our approach
Not a template. Your answer, engineered.
Four disciplines we apply to every engagement — tuned to your context, your team, your constraint.
- 01DiscoverStep 01 of 03
Schema first.
We write OpenAPI or GraphQL schemas before a line of handler code. Frontend and backend can then work in parallel, against a contract, not each other.
- 02DesignStep 02 of 03
Idempotency from day one.
Networks fail. Clients retry. If your POST /order endpoint isn't idempotent, you'll eventually bill someone twice. We design for that.
- 03DeliverStep 03 of 03
Observability is not optional.
Every API we ship has structured logs, distributed traces, and alerts tied to business-relevant SLOs. You'll know an endpoint is degrading before your users do.
ClientA logistics marketplaceLogistics
From <em>brittle PHP endpoints</em> to an event-driven API handling 14M requests/day.
Rewrote a legacy REST layer into a versioned, documented, idempotent API with full observability. Error rate fell from 2.3% to 0.04%. P99 latency from 3.2s to 190ms.
01
14M/day
Requests handled
02
190ms
P99 latency
03
0.04%
Error rate
04
99.99%
Uptime
What it's like working with us
We had four different "APIs" held together by assumptions and WhatsApp messages. Now we have one. With docs. That every team reads.
AG
Aditya G.
VP Engineering · A logistics marketplace
Logistics · Mumbai
Tech stack
The tools. Chosen for your reasons.
12technologies in rotation
01Node.js
02TypeScript
03Fastify
04NestJS
05GraphQL
06tRPC
07PostgreSQL
08Redis
09Kafka
10OpenAPI
11Datadog
12Grafana
Process
How we actually work.
06 stages
- 01
API audit / discovery
Weeks 1-2What exists today? What needs to change? Who consumes what?
- 02
Contract design
Weeks 2-3OpenAPI / GraphQL schema. Reviewed with all consumers.
- 03
Core build
Weeks 3-8Handlers, validation, auth, rate limiting, observability.
- 04
Integration
Weeks 8-10Plug into existing systems. Migration scripts if needed.
- 05
Load + security test
Weeks 10-11Realistic load. Penetration testing on public APIs.
- 06
Launch + SDK docs
Weeks 11-12Developer portal, client SDKs, migration guides.
Questions
Answers, without the fluff.
Still have questions? Talk to us — we answer within a business day.
06common questions
01REST or GraphQL?
For public APIs consumed by many external parties: REST + OpenAPI. For internal APIs serving multiple first-party clients (web, mobile, admin): GraphQL or tRPC. Both have their place.
02How do you handle versioning?
URL versioning for public APIs (/v1, /v2). Header versioning for internal APIs where we control clients. Deprecation policy is always explicit — minimum 6 months notice.
03What about Tally / Zoho / SAP integration?
We've written middleware layers for all of these. Typically an event-driven integration that keeps systems in sync without brittle point-to-point coupling.
04Documentation?
Always. Auto-generated from schema, hosted on your domain, with authentication, changelog, SDKs, and code samples. Not a Word doc attached to an email.
05How do you test APIs?
Unit tests for business logic, contract tests for schema compliance, integration tests with real DBs, load tests before launch. Minimum 80% coverage on critical paths.
06What about backwards compatibility?
We never break existing clients silently. Breaking changes go through versioning, deprecation warnings, and a migration window. Clients fail loudly or not at all — never confusingly.
Related
Explore more of what we do.
Stop stitching. Start integrating.
30-minute architecture call. Bring your current stack diagram. We'll bring specific recommendations.
API blueprint in 2 weeks.