I will fix API webhook integration and connect your apps


About this gig
Copy-Paste Gig Description
API returning errors? Webhook not firing? Two applications refusing to sync?
I will diagnose and fix your API or webhook integration and help connect your systems reliably.
I can work with:
REST APIs and JSON
OAuth and bearer-token authentication
Webhooks
Payment APIs
CRM APIs
OpenAI and AI APIs
WhatsApp and messaging APIs
Google APIs
Custom third-party APIs
Laravel APIs
Node.js APIs
Python services
React / Next.js frontend integration
Common problems I can solve:
401/403 authentication errors
Incorrect request or response formats
Webhook signature or delivery issues
Data not syncing between systems
API pagination or mapping problems
Frontend failing to call backend
Environment/configuration mistakes
Missing error handling
Please message me before ordering if the integration includes several systems, many endpoints, or complex business rules.
Get to know Syed Nabeel
Full Stack Developer, Bug Fixes, APIs, SaaS Apps
- FromPakistan
- Member sinceNov 2018
- Avg. response time1 hour
Languages
Urdu, English
FAQ
Can you integrate an API that is not listed?
Usually yes if it has usable documentation and required access.
Can you fix authentication errors?
Yes, including common API key, bearer token, OAuth, and webhook authentication issues within the agreed scope.
Can you connect my frontend to my backend API?
Yes.
Can you build a complete new API?
Yes, but a full API build may require a custom offer depending on scope.
