I will integrate any API or develop custom API for your website

Starting at

$

300

About this service

Summary

Are you looking to integrate a third-party API into your PHP application or need a custom API built from scratch? You're in the right place!
I specialize in API integration and custom API development using PHP. Whether its REST APIs, JSON/XML-based services, or payment gateways I can help you connect and build smooth, reliable backend solutions.
Services I Offer:
API integration (REST, SOAP, GraphQL)
Custom PHP API development
Authentication (OAuth, API keys, JWT)
Payment gateway integration (Stripe, PayPal, etc.)
Webhook setup and handling
Error handling and response formatting
API documentation (Postman, Swagger)
Tools & Technologies:
PHP (Core, Laravel, CodeIgniter, etc.)
cURL, Guzzle, HTTP Clients
MySQL / MariaDB
JSON, XML
Postman for testing
Why choose me?
100% PHP-based solutions
Clean, modular, and well-documented code
Fast response and on-time delivery
Custom solutions tailored to your needs
Lets build something great together!
Before placing an order, please message me with your API requirements this helps avoid confusion and ensures a smooth delivery.

FAQs

  • What information do you need to start the API integration?

    I usually need the API documentation, your API credentials (key, secret, token), a brief description of what the API should do, and access to your PHP application/server. If you don’t know these details, I’ll guide you.

  • Can you work with any type of API?

    Yes. I work with REST, SOAP, GraphQL, JSON/XML-based APIs, and even custom or undocumented APIs. If the API has valid endpoints, I can integrate it.

  • Can you build a custom API for my PHP website or application?

    Absolutely! I can create secure, scalable, well-structured APIs using Core PHP or frameworks like Laravel and CodeIgniter, complete with authentication and response formatting.

  • Do you integrate payment gateways such as Stripe or PayPal?

    Yes. I can integrate payment gateways (Stripe, PayPal, Razorpay, etc.) securely, including payments, subscriptions, refunds, and webhook handling.

  • What if the API is not working or showing errors?

    I can debug, fix, and improve your existing API integration — including authentication failures, invalid payloads, incorrect endpoints, or unexpected API responses.

  • Can you set up webhooks for real-time events?

    Yes! I can set up webhooks to handle real-time events such as payments, form submissions, lead notifications, or system triggers.

  • Do you provide API documentation?

    Yes. I can prepare documentation using Postman Collections, Swagger/OpenAPI, or custom-written documentation to help your team understand and use the API.

  • Can you handle authentication like OAuth, JWT, or API keys?

    Yes. I implement OAuth2, JWT tokens, API keys, HMAC signatures, and custom authentication flows as required by the API provider.

  • Do you provide maintenance or updates after delivery?

    Yes. I offer ongoing support, updates, bug fixes, and improvements as gig extras or custom offers.

  • Can you integrate multiple APIs into a single project?

    Yes. I can connect multiple APIs (payment, CRM, SMS, analytics, etc.) and structure them in a clean, scalable way.

What's included

  • API Integration or Custom API

    Full integration of the required third-party API (REST/SOAP/GraphQL) or Fully developed custom PHP API built from scratch.

  • Clean & Well-Structured Source Code

    Organized PHP code (Core PHP/Laravel/CodeIgniter) Modular structure, following best practices Proper comments and documentation within the code.

  • Authentication Setup (If Required)

    Implementation of OAuth, API keys, JWT, or other required authentication methods.

  • Database Integration

    MySQL/MariaDB schema setup (tables)

  • API Endpoints

    All requested endpoints implemented, tested, and optimized Consistent JSON/XML responses.

  • Error Handling & Validation

    Standardized error responses Server-side validations for all inputs.

  • Testing & Debugging

    End-to-end testing of all API calls Postman collection provided for testing.

  • Support After Delivery

    Free bug fixing for a specified period (define it in your service, e.g., 7–14 days).


Duration

5 days

Skills and tools

Backend Engineer

Frontend Engineer

Web Developer

CodeIgniter

CodeIgniter

jQuery

jQuery

PHP

PHP

React

React

WordPress

WordPress

Industries

Business Management