phoenix
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Develop secure RESTful APIs and third party integrations

$85
Quantity
1
Delivery in
3 days
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What you get with this Offer

Need robust, fast, and secure API endpoints or third-party integrations for your application? I build scalable RESTful APIs and integrate external web services using Node.js/Express or PHP/Laravel.

What this offer includes for the base price:
- 1 Custom RESTful API endpoint with full CRUD operations
- OR integrate 1 third-party API (payment gateway, CRM, social login, SMS)
- Secure authentication handling (JWT, API keys, or OAuth 2.0)
- Input validation, proper error handling, and JSON responses
- Complete API documentation (Postman collection or Swagger)

Key Capabilities & Integrations:
- Payment Processors: Stripe, PayPal, Razorpay, Square
- Communications: Twilio, SendGrid, WhatsApp Cloud API, Mailchimp
- Cloud & Social: Google Cloud APIs, AWS S3, OpenAI, Firebase
- Webhook setup, receiver endpoints, and automated data syncing
- Database query tuning for low latency (PostgreSQL, MySQL, MongoDB)

Have a large microservice architecture, multi-endpoint project, or complex webhook pipeline? Send me a message so we can define the scope and timeline.

Get more with Offer Add-ons

  • I can set up secure webhook listener with signature verification

    Additional 1 working day

    +$33
  • I can integrate full payment gateway with checkout and refunds

    Additional 2 working days

    +$47
  • I can generate interactive Postman / Swagger documentation

    Additional 2 working days

    +$47

What the Freelancer needs to start the work

1. API documentation or developer access for the third-party service you want connected.
2. Details of endpoints, data payloads, or specific business logic required.
3. Access to your backend repository or development server environment.