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Fiverr Pro
English
$
USD
I will do API integration, webhook automation and custom API for website or app
Arnas Mockus
About this gig
Need a Reliable API Integration That Just Works?
Whether you're connecting a website, mobile app, SaaS platform, CRM, payment gateway, or a third party service. You're in the right place.
From simple REST API connections to complex webhook workflows and OAuth authentication, I develop integrations that are scalable, maintainable, and built for production.
Services I Provide:
- REST API Integration
- Custom API Development
- Third Party API Integration
- Webhook Development & Troubleshooting
- OAuth 2.0 Authentication
- Payment Gateway Integration
- CRM Integration
- ERP Integration
- Data Synchronization
- JSON & XML Processing
- API Debugging & Error Resolution
- API Testing & Documentation
PROJECT I CAN HANDLE:
- Website API Integration
- Mobile App Integration
- SaaS Platform Integration
- CRM & ERP Connectivity
- Payment Gateway Setup
- Third Party Service Integration
- Webhook Configuration
- Backend System Integration
Platforms & APIs I Work With:
Stripe, PayPal, Shopify, HubSpot, Salesforce, Google APIs, Meta APIs, Twilio, Firebase, AWS Services, Custom REST APIs.
Before placing an order...
Reach out to me so we can discuss your project details, every API has different authentication methods and rate limit.
Get to know Arnas Mockus
Arnas Mockus
AI Automation Specialist! n8n, Make, Zapier, API Integrations, AI Workflows
- FromLithuania
- Member sinceMay 2026
- Avg. response time2 hours
Languages
English, Lithuanian, French, Spanish
I am an AI Automation Specialist helping businesses automate repetitive tasks, connect their favorite tools, and build smarter digital workflows. I design AI powered automation solutions using n8n, Make, Zapier, APIs, webhooks, and custom integrations to streamline operations and improve productivity. My background in backend development and business systems allows me to create reliable workflows that connect CRMs, SaaS platforms, databases, and internal processes. I focus on turning manual operations into efficient, scalable automation systems. Contact me to discuss automation for business.
Other Software Development Services I Offer
FAQ
What APIs can you integrate?
I can integrate REST APIs, third-party services, payment gateways, CRMs, ERPs, and custom APIs.
Which platforms do you work with?
I work with Stripe, PayPal, Shopify, HubSpot, Salesforce, Google APIs, Meta APIs, Twilio, Firebase, AWS, and more.
Do you develop custom APIs?
Yes. I can build secure, scalable custom APIs tailored to your project.
Can you fix API errors or integration issues?
Yes. I troubleshoot API errors, authentication issues, webhooks, and data synchronization problems.
What do you need to get started?
Please share your project details, API documentation, and access credentials if required.
Should I contact you before ordering?
Yes. Please message me first so I can review your requirements and recommend the best solution.
