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Fiverr Pro
Nederlands
$
USD
I will build custom API integrations for your website web app or saas
Usman Jabbar
Level 2
4,9
4,9
Over deze dienst
Third-party APIs are where projects stall: broken auth flows, missing webhooks, rate limits, undocumented quirks. I fix that.
7+ years building and integrating APIs, including real-time flight, parking and security APIs for a US airport. 23 reviews at 4.9 stars on this exact service.
What I handle:
- Payments and billing: Stripe, PayPal, subscriptions, webhooks
- AI APIs: OpenAI, Claude and custom model endpoints
- CRM and marketing: HubSpot, Salesforce, Mailchimp, n8n or Zapier
- Shipping, maps, SMS, WhatsApp, social and data APIs
- Custom REST API development for your own product, with docs
- Secure key handling, retries and logging, done properly
Stack: Node.js, Next.js, Python, Laravel, PHP and TypeScript. If it has an API, I can connect it - and if your current integration is broken, I can rescue it.
Send the details and I will quote a fixed price with a realistic timeline.
Maak kennis met Usman Jabbar
Usman Jabbar
Senior AI and Full Stack Engineer, AI Agents, SaaS MVPs, App Rescue
Level 2
- Afkomstig uitPakistan
- Lid sindsaug 2020
- Laatste levering3 maanden
Talen
Urdu, Engels
I build the systems companies rely on when quick builds fail. 7+ years full-stack: real-time flight, parking & security APIs for a US airport, an EU ticketing platform, a German services marketplace, and 50+ custom GPTs and AI integrations.
I help founders and teams to:
• Rescue AI/vibe-coded apps (Lovable, Cursor, Bolt) and take them to production
• Build AI agents & automations that do real work
• Launch SaaS MVPs - Next.js, Node, Supabase, Stripe
Fast, secure, scalable - and it ships. Tell me what you're building.
Mijn portfolio
Andere Software development diensten die ik aanbied
Veelgestelde vragen
Which APIs can you integrate?
Almost any REST or GraphQL API: payments, AI, CRM, shipping, maps, SMS, social and internal company APIs. If it has documentation, I can work with it.
Can you fix an integration another developer broke?
Yes. I audit the current setup, find where auth, webhooks or data mapping fail, then rebuild the broken parts and test them properly.
Do I have to give you my API keys?
You create the accounts and stay the owner. Keys go in environment variables, never hard-coded, and you can rotate them after delivery.
Do I get the source code and documentation?
Yes. Every package includes the full source code and setup notes. Premium also includes complete API documentation and deployment.
Reviews
23 reviews van deze dienst
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Specificering van de beoordeling
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- Kwaliteit van de levering
- Waarde van de levering
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Meest relevant
F fiazahmad293
Verenigde Arabische Emiraten
I needed a quick resolution for my website, and Usman done very professionally the contact page on my website he just did it quickly. I see his expertise and skills beyond my expectations. highly recommend him!
US$ 50
Prijs
2 dagen
Looptijd
Nuttig?C csteingart
Canada
Lopende samenwerkingExcellent service once again. Understood the problem I was looking to solve and created a perfect solution.
US$ 200-US$ 400
Prijs
3 weken geleden
Looptijd
Nuttig?M matt540
Verenigde Staten
Lopende samenwerkingVery talented API developer. I will continue to use his expertise on our projects. Thanks!!
US$ 200-US$ 400
Prijs
10 dagen
Looptijd
Nuttig?J joa1974
Spanje
..............
US$ 100-US$ 200
Prijs
1 dag
Looptijd
Nuttig?C csteingart
Canada
Lopende samenwerkingFantastic service. I would highly recommend!
US$ 50
Prijs
3 dagen
Looptijd
Nuttig?
Reviews
23 reviews van deze dienst
| (23) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Specificering van de beoordeling
- Communicatieniveau van de freelancer
- Kwaliteit van de levering
- Waarde van de levering
Sorteer op
Meest relevant
F fiazahmad293
Verenigde Arabische Emiraten
I needed a quick resolution for my website, and Usman done very professionally the contact page on my website he just did it quickly. I see his expertise and skills beyond my expectations. highly recommend him!
US$ 50
Prijs
2 dagen
Looptijd
Nuttig?C csteingart
Canada
Lopende samenwerkingExcellent service once again. Understood the problem I was looking to solve and created a perfect solution.
US$ 200-US$ 400
Prijs
3 weken geleden
Looptijd
Nuttig?M matt540
Verenigde Staten
Lopende samenwerkingVery talented API developer. I will continue to use his expertise on our projects. Thanks!!
US$ 200-US$ 400
Prijs
10 dagen
Looptijd
Nuttig?J joa1974
Spanje
..............
US$ 100-US$ 200
Prijs
1 dag
Looptijd
Nuttig?C csteingart
Canada
Lopende samenwerkingFantastic service. I would highly recommend!
US$ 50
Prijs
3 dagen
Looptijd
Nuttig?
