Custom APIs thatconnect everything.
REST, GraphQL and webhook layers that wire your website, CRM, payments, WhatsApp, marketplaces and dashboards into one secure pipeline.
Service
API Development
Real-time data
No more manual work
Secure by design
Observability
Average impact
450x faster lead handling
For b2b manufacturer
Symptoms of a broken integration layer
Leads vanish between tools
Website form fills don’t reach CRM. Or arrive 3 days late.
Manual copy-paste hell
Your team spends hours moving data between sheets, CRM and WhatsApp.
No retry, no logging
When a third-party fails, you don’t know until a customer complains.
Fragile webhooks
Random duplicate events, no idempotency, no signature verification.
A production-grade integration layer
We design a clean API surface (REST + GraphQL + webhooks) with auth, retries, queues, logging and a developer dashboard. Your tools talk to each other reliably, in real time.
What you get
- Versioned REST / GraphQL endpoints
- OAuth2, API keys and rate-limiting
- Auto-retry, queues and idempotency
- Signature-verified webhooks
- Live request logs and alerts
- Stripe / Razorpay / PayU / WhatsApp ready
Why teams love this engine
Real-time data
Every lead, order and event reaches every tool in seconds.
No more manual work
Sheets and copy-paste replaced with automated, audited pipelines.
Secure by design
OAuth, signed webhooks, rate-limits and audit logs by default.
Observability
Live dashboards for latency, errors and uptime.
Scales with you
Queue + retry architecture handles 10x volume without rewrites.
Future-proof
Versioned endpoints + clean docs make every future tool plug-and-play.
From idea to growth in 5 clear steps.
Discovery
We deep-dive into your business, audience, offers and current funnel.
Planning
Strategy, scope, KPIs, timeline and team handoff documented clearly.
Execution
We build, design, set up, integrate and ship the system end-to-end.
Optimization
Weekly testing, iteration and tuning based on real data.
Growth
Scale spend, surface area, channels and audiences without breaking the engine.
Everything included
REST + GraphQL surface
Clean, documented endpoints with auth and versioning.
Webhook system
Signed, idempotent, with replay and audit history.
Queue + retry
BullMQ / SQS-based jobs for any flaky third party.
Payment integrations
Razorpay, Stripe, PayU, Cashfree — with webhooks and reconciliation.
WhatsApp Cloud API
Templates, sessions, opt-ins and delivery receipts.
Marketplace sync
IndiaMART, Amazon, Flipkart and Meta lead-ads webhooks.
Real numbers,
real businesses.
Connected their website, IndiaMART, WhatsApp and Zoho CRM via our API layer. Manual entry vanished overnight.
Before
- Avg lead handling6 hrs
- Manual entries / wk420
- Duplicate leads18%
After
- Avg lead handling48 sec
- Manual entries / wk0
- Duplicate leads1.2%
Results depend on industry, offer, budget and execution.
“Our team was doing 6 hours of copy-paste a day. After Vanilla wired the APIs, it’s literally zero.”
Pranav Kapoor
COO, B2B Manufacturing
Both — we build custom APIs from scratch and we integrate with third-party APIs you already use.
Mostly Node.js + TypeScript, Express / Fastify, MongoDB / Postgres, Redis, BullMQ. We choose what fits.
Yes — OpenAPI / Swagger docs and a simple internal developer portal are part of every project.
We deploy on Vercel, Railway, AWS or your existing infra — your choice.
Absolutely — we audit and add auth, rate-limiting, logging and monitoring to existing endpoints.
Yes — monthly retainers cover uptime monitoring, fixes and feature additions.
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