API & Third-Party Integrations (Payments, CRM, SaaS APIs)Sunil Kumar
I connect your product to the tools it depends on: payment gateways, CRMs, email and SMS providers, exchanges, and partner APIs that have no clean integration yet.
Examples from my own builds: Tradepilot connects to 12 crypto exchanges through trade-only API keys, and Knoock sends email + SMS through the customer's own providers with real-time tracking.
What you get
One integration built end to end (auth, sync, webhooks, error handling)
Retries and duplicate protection so nothing is sent or charged twice
Clean internal API or admin view for the synced data
Documentation and handover
Stack: Laravel/PHP, Node.js, NestJS, Python (FastAPI, Django, Flask), PostgreSQL, MySQL. The starting price covers one standard integration; multi-provider work is quoted after a short call.
Starting at$250
Duration1 week
Tags
Laravel
NestJS
Node.js
PostgreSQL
Python
Service provided by
Sunil Kumar Delhi, India
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- Followers
API & Third-Party Integrations (Payments, CRM, SaaS APIs)Sunil Kumar
Starting at$250
Duration1 week
Tags
Laravel
NestJS
Node.js
PostgreSQL
Python
I connect your product to the tools it depends on: payment gateways, CRMs, email and SMS providers, exchanges, and partner APIs that have no clean integration yet.
Examples from my own builds: Tradepilot connects to 12 crypto exchanges through trade-only API keys, and Knoock sends email + SMS through the customer's own providers with real-time tracking.
What you get
One integration built end to end (auth, sync, webhooks, error handling)
Retries and duplicate protection so nothing is sent or charged twice
Clean internal API or admin view for the synced data
Documentation and handover
Stack: Laravel/PHP, Node.js, NestJS, Python (FastAPI, Django, Flask), PostgreSQL, MySQL. The starting price covers one standard integration; multi-provider work is quoted after a short call.
$250