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Connect to your AI
I will develop, fix and integrate any API
Zain Ul Abdeen
Level 2
1 order in queue
4.8
4.8
Gig Summary
What people loved about this freelancer
danfo78
Singapore
⭐⭐⭐⭐⭐ 5/5 – Outstanding Developer, Highly Recommended! Excellent experience working with this developer! Very professional, knowledgeable, responsive, and...
probestone
Morocco
Amazing dev, highly recommend! ⭐⭐⭐⭐⭐ Honestly, thank you so much bro! You did a really great job and I’m very happy with what you made for me. You were helpful,...
samarabishop
Australia
Zain is absolutely amazing! nd I cannot recommend him enough! He helped me create a fully custom app that my clients now move through revelation by revelation...
rosturdy
United Kingdom
gave him a deadline of 48 Hours and he delivered well within that time frame for me, done more than i asked and cannot express how professional and polite he...
samarabishop
Australia
Managed to deliver what 3 others couldn't! Zain was great to work with - exceeded all of my expectations and delivered a complicated project and api set up...
About this gig
I am a professional API integration developer who connects your website or application to the tools your business depends on, including payment gateways, SMS services, CRMs, AI platforms, and more.
What I Do
- Third-party API integration for websites and web applications
- Payment gateway integration
- Custom REST API development
- API bug fixing and troubleshooting
- Webhook setup and automation
- API authentication and data synchronization
APIs I Have Worked With
Payments: Stripe, PayPal, Skrill, Payeer, Perfect Money, 2Checkout, Payfast
Crypto: Coinbase, CoinPayments, CoinGate, Block.io
Messaging: Twilio, Plivo, Vonage, SendGrid
AI & Data: OpenAI, Google Sheets, Airtable
CRM & More: ActiveCampaign, CallRail, X (Twitter), USPS, and many more
Platforms: WordPress, Shopify, Wix, and custom websites
Why Choose Me?
- Clean, secure, and well-documented code
- Fully tested integrations before delivery
- Clear communication throughout the project
- On-time delivery and post-delivery support
Not sure if your API is supported?
Send me the documentation before placing an order, and I will confirm whether I can work with it.
Get to know Zain Ul Abdeen
Zain Ul Abdeen
API Integration Expert
Level 2
- FromPakistan
- Member sinceApr 2024
- Avg. response time1 hour
- Last deliveryabout 5 hours
Languages
English, Urdu, Hindi
I am a professional Laravel and API Developer with 5+ years of experience in API integrations, workflow automation, and custom web development.
I help businesses with:
• API integration & development
• Payment gateways
• Shopify automation
• Twilio SMS & WhatsApp
• CRM & Xero integrations
• AI chatbots
• n8n workflows
Every project comes with clean code, clear communication, and on-time delivery. Message me with your idea and I will suggest the best solution.
My Portfolio
Other Software Development Services I Offer
FAQ
Can you integrate any API?
Yes, if the API has proper documentation and access credentials. Send me the docs before ordering and I will confirm whether it can be integrated with your website or app.
What do you need from me to start?
The API documentation, API keys or sandbox credentials, access to your website or code (hosting, cPanel, GitHub, or admin panel), and a short description of what the integration should do.
Do you fix existing API integrations?
Yes. I debug broken integrations, failed payments, webhook issues, authentication errors, and outdated API versions.
Will you test the integration before delivery?
Yes. I test every integration in sandbox or test mode first, then verify it works on your live site before delivery.
What's included in the delivery?
Complete source code, setup instructions, and a short guide or video explaining how the integration works.
Is my data and API key safe?
Yes. I never share your credentials, I store API keys securely (not in public code), and I am happy to sign an NDA if needed.
Reviews
66 reviews for this Gig
| (61) | ||
| (3) | ||
| (0) | ||
| (0) | ||
| (2) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
R rkp2026
United Kingdom
Ongoing collaborationZain did a great job completing the Safe Space Workplace video calls testing task. He thoroughly tested the full user journey from both the client and practitioner/provider perspectives, including joining the call, checking permissions, verifying audio and video functionality, and successfully ending...
$50
Price
6 days
Duration
Z 
Seller's Response
Helpful?D danfo78
Singapore
Ongoing collaboration⭐⭐⭐⭐⭐ 5/5 – Outstanding Developer, Highly Recommended! Excellent experience working with this developer! Very professional, knowledgeable, responsive, and committed to delivering quality work. Not only did the developer complete all the assigned tasks to my satisfaction, but also went above and beyond...
$100-$200
Price
10 days
Duration
Z Seller's Response
Helpful?S samarabishop
Australia
Ongoing collaborationZain is absolutely amazing! nd I cannot recommend him enough! He helped me create a fully custom app that my clients now move through revelation by revelation before downloading a beautiful keepsake PDF. This was not a simple build, with live chart data, AI-generated readings written in my voice and...
$200-$400
Price
12 days
Duration
Z Seller's Response
Helpful?P 
probestone
Morocco
Ongoing collaborationAmazing dev, highly recommend! ⭐⭐⭐⭐⭐ Honestly, thank you so much bro! You did a really great job and I’m very happy with what you made for me. You were helpful, easy to work with, and everything went smoothly. I’ll definitely come back to you again if I need anything in the future. You’ll be my first...
$50
Price
3 days
Duration
Z Seller's Response
Helpful?S sega2011
Ireland
Ongoing collaborationZain did an outstanding job developing our WhatsApp AI bot and integrating it directly with our Shopify store. He implemented automated customer responses, real-time product information, and direct buy links. He also handled the complete WhatsApp number setup, API configuration, permissions, hosting,...
$50-$100
Price
4 days
Duration
Z Seller's Response
Helpful?
Reviews
66 reviews for this Gig
| (61) | ||
| (3) | ||
| (0) | ||
| (0) | ||
| (2) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
R rkp2026
United Kingdom
Ongoing collaborationZain did a great job completing the Safe Space Workplace video calls testing task. He thoroughly tested the full user journey from both the client and practitioner/provider perspectives, including joining the call, checking permissions, verifying audio and video functionality, and successfully ending...
$50
Price
6 days
Duration
Z Seller's Response
Helpful?D danfo78
Singapore
Ongoing collaboration⭐⭐⭐⭐⭐ 5/5 – Outstanding Developer, Highly Recommended! Excellent experience working with this developer! Very professional, knowledgeable, responsive, and committed to delivering quality work. Not only did the developer complete all the assigned tasks to my satisfaction, but also went above and beyond...
$100-$200
Price
10 days
Duration
Z Seller's Response
Helpful?S samarabishop
Australia
Ongoing collaborationZain is absolutely amazing! nd I cannot recommend him enough! He helped me create a fully custom app that my clients now move through revelation by revelation before downloading a beautiful keepsake PDF. This was not a simple build, with live chart data, AI-generated readings written in my voice and...
$200-$400
Price
12 days
Duration
Z Seller's Response
Helpful?P probestone
Morocco
Ongoing collaborationAmazing dev, highly recommend! ⭐⭐⭐⭐⭐ Honestly, thank you so much bro! You did a really great job and I’m very happy with what you made for me. You were helpful, easy to work with, and everything went smoothly. I’ll definitely come back to you again if I need anything in the future. You’ll be my first...
$50
Price
3 days
Duration
Z Seller's Response
Helpful?S sega2011
Ireland
Ongoing collaborationZain did an outstanding job developing our WhatsApp AI bot and integrating it directly with our Shopify store. He implemented automated customer responses, real-time product information, and direct buy links. He also handled the complete WhatsApp number setup, API configuration, permissions, hosting,...
$50-$100
Price
4 days
Duration
Z Seller's Response
Helpful?
