I will integrate payment gateways and apis into your website
About this gig
I connect websites and online stores to the services they depend on: payment gateways, shipping and parcel lockers, POS and ERP systems, accounting software, marketing tools and AI APIs.
Examples of what I build:
- Payment gateways such as Stripe, PayPal and local bank or card providers, including refunds and webhooks
- Shipping: courier APIs, parcel locker selection, labels and tracking
- Stock, product and order sync between your shop and your POS or ERP
- Sales and payment export to accounting software
- Webhooks, scheduled sync jobs and CSV, XML or JSON feeds
- AI features using the OpenAI, Claude or Gemini APIs
- Automation workflows with n8n
Integrations usually break in the edge cases, so I build for them: duplicate-safe webhooks, retries, logging, alerts and clear error messages, so a missed callback does not become a lost order.
Works with Laravel, PrestaShop, WordPress and WooCommerce, and custom PHP or JavaScript.
Please message me before ordering with the systems you want to connect and links to their API docs, and I will confirm the scope.
Get to know Kristo G.
Full stack PHP, Laravel and Vue developer for ecommerce, APIs and web apps
- FromEstonia
- Member sinceMay 2020
Languages
Estonian, English, Russian, Finnish
Other Software Development Services I Offer
FAQ
Which systems can you integrate?
Almost any service with a documented API or webhooks. Send me a link to the API documentation and I will confirm.
Do you need my API keys?
Yes, but test or sandbox keys are best to start with. Please share them only through the order requirements, never in public.
What happens if the other service is down?
I add retries, logging and clear error messages, so failed calls are visible and can be repeated instead of being lost.
Can you also maintain the integration later?
Yes. When an API changes or something stops working, message me and I will send you an offer.
