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Fiverr Pro
English
$
USD
I will develop, fix and integrate rest API or third party API development
Romostomosn
5.0
5.0
About this gig
Is an API failing, returning errors, or stopping two systems from communicating properly?
I will diagnose, develop, fix, or integrate your API so data moves reliably between your website, application, platform, or third-party service.
SERVICES OFFERED
- REST API integration
- Third-party API connection
- Custom API development
- API debugging and fixes
- Authentication and JSON
- Webhooks and data syncing
TECH STACK
REST, JSON, PHP, Node.js, JavaScript, Laravel, Webhooks
WHY CHOOSE ME
You get a solution focused on reliable communication, clean data flow, testing, and the actual problem affecting your integration.
Contact me before ordering so I can review your API requirements.
Get to know Romostomosn
Romostomosn
API Integration and Automation Expert!
- FromNigeria
- Member sinceMay 2026
- Avg. response time1 hour
- Last delivery3 months
Languages
German, Italian, English
Need APIs, payments, apps, or business tools to work together without errors? I build and fix REST APIs, payment integrations, webhooks, Shopify and WordPress connections, plus AI and workflow automation. Get reliable data flow, secure integrations, and systems built around your business needs.
My Portfolio
FAQ
Can you fix an API that is already integrated but not working?
Yes. I can troubleshoot REST API errors, authentication problems, failed requests, incorrect responses, and broken integrations.
Can you integrate a third-party API into my website?
Yes. I can connect compatible third-party APIs to websites, web applications, and backend systems.
Do you develop custom APIs?
Yes. I can build custom API endpoints based on your application's requirements and required data flow.
Can you work with API authentication?
Yes. I can work with common authentication methods such as API keys, tokens, and OAuth where supported.
Can you set up webhooks?
Yes. I can configure webhooks for supported platforms to automatically send data or trigger actions.
Can you work with JSON API data?
Yes. I can retrieve, process, transform, and send JSON data between compatible systems.
What do you need before starting?
Please provide your API documentation, website/app details, required functionality, current errors, and appropriate access if needed.
Reviews
1 reviews for this Gig
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Rating Breakdown
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- Quality of delivery
- Value of delivery
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alfrield_herick
United Kingdom
Very calm and detailed person, even though he needs some things to level up he always tries his best to get the work done! i can still recommend him to you!
$50
Price
6 days
Duration
R 
Seller's Response
Helpful?
Reviews
1 reviews for this Gig
| (1) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
A alfrield_herick
United Kingdom
Very calm and detailed person, even though he needs some things to level up he always tries his best to get the work done! i can still recommend him to you!
$50
Price
6 days
Duration
R Seller's Response
Helpful?
