Develop or Integrate Any API with Ease

Pro

Marc Brown

Starting at

$

50

/hr

About this service

Summary

Need your app to connect seamlessly with other platforms? I specialize in API development and integrations that make systems talk to each other smoothly. Whether you need a custom REST/GraphQL API built from scratch or an integration with services like Stripe, Shopify, Twilio, or HubSpot I’ll make it secure, reliable, and well-documented.

FAQs

  • Can you integrate with any API?

    Yes as long as the API is accessible (public or with provided credentials), I can connect it to your app.

  • Do you build APIs from scratch too?

    Absolutely. I can design and develop secure REST/GraphQL APIs tailored to your project.

  • Will the integration be secure?

    Yes I follow best practices with authentication, token management, and data validation.

  • Can you help if my current API integration is buggy?

    Definitely I can debug, fix, and optimize existing integrations.

  • What’s the usual timeline?

    Simple integrations: 1–2 days. Custom APIs: 1–3 weeks depending on scope.

What's included

  • Deliverable 1: Custom API Development

    I will build secure and scalable REST or GraphQL APIs with proper authentication, error handling, and documentation.

  • Deliverable 2: Third-Party API Integration

    I will integrate APIs (Stripe, PayPal, Twilio, Shopify, HubSpot, Slack, etc.) into your existing app or website.

  • Deliverable 3: Data Flow & Automation Setup

    I will connect APIs between apps, enabling automated workflows (e.g., CRM syncs, email triggers, real-time dashboards).

  • Deliverable 4: Testing & Documentation

    I will thoroughly test endpoints and provide clear API documentation so your team can maintain and extend it easily.

  • Optional Add-ons

    - OAuth2 / JWT authentication setup - Webhooks development & event-driven workflows - API performance optimization & caching - Ongoing API maintenance & version upgrades

Recommendations

(5.0)

Recommended

Marc communicates excellent and is very professional and knowledgeable. I highly recommend him for your projects!!

Recommended

I enjoyed working with Marc. He's an easy going guy that actually knows his stuff. I was a bit worried when we hit some snafus, but he got the job done. Note: Allow more time than you think because we hit delays with Replit and Supabase

Recommended

Professional negotiations and high quality project management and work product. Was very flexible to adjust deliverables when asked on many of the different projects I’ve outsourced to Marc.

Skills and tools

Backend Engineer

DevOps Engineer

Fullstack Engineer

Apigee

Apigee

GraphQL

GraphQL

RoBERTa

RoBERTa

Showit

Showit

Industries

Other

More services

Build, Design, or Redesign a Responsive MODX Website

STARTING AT

$50/hour

hourly rate

Design or Redesign Your Webflow Website

STARTING AT

$50/hour

hourly rate

Build a Smart, Friendly AI Chatbot (Web, WhatsApp, Slack & More)

STARTING AT

$50/hour

hourly rate