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API Development Company

API development company building REST, GraphQL and gRPC services with OpenAPI specs, rate limiting, auth, versioning and developer-friendly documentation.

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200+
Clients
8+
Years Experience
50+
Countries Served
Take off digitally with GreatWorks.

Run smarter, grow faster, and lead the future with advanced technology

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API Development Company

API development company building REST, GraphQL and gRPC services with OpenAPI specs, rate limiting, auth, versioning and developer-friendly documentation.

What We Offer

Our api development company services cover full-cycle development — from strategy and UI/UX design to development, testing, and deployment — tailored to your industry and business needs.

Dedicated Expert Team

Work with skilled professionals specializing in api development company. We align our processes for seamless, real-time collaboration with your team.

Proven Delivery

End-to-end api development company with on-time delivery, transparent processes, and ongoing post-launch support for your business.

Why Choose GreatWorks for API Development Company?

GreatWorks brings global expertise, delivering custom api development company solutions that are scalable, secure, and built for performance. We work with startups and enterprises alike to turn ideas into high-quality digital products.

Agile Development Process
100% Transparent Communication
Dedicated Project Manager
Post-Launch Support & Maintenance

What We Build

Frontend Engineering

React, Next.js, Vue, TypeScript — fast, accessible, SEO-ready UIs.

Backend Engineering

Node.js, Python, PHP, Java — REST/GraphQL APIs and microservices.

API & Integration

Stripe, Plaid, Twilio, SAP, Salesforce, and custom 3rd-party integrations.

Database & Data

PostgreSQL, MySQL, Mongo, Redis, ClickHouse — schema design and scaling.

Cloud & DevOps

AWS, Azure, GCP, Docker, Kubernetes — CI/CD and observability.

Performance & SEO

Core Web Vitals, structured data, image optimisation, lighthouse 95+.

Our Tech Stack

  • React
  • Next.js
  • Vue
  • Node.js
  • Python
  • PHP
  • PostgreSQL
  • AWS

Case Studies

Real engagements. Real outcomes. Names withheld under NDA on request.

FinTech Payments Platform

Challenge

Legacy SOAP gateway couldn't support partner growth.

Solution

Replaced with REST + OAuth2 gateway, OpenAPI-first design, developer portal.

Node.js OpenAPI Kong PostgreSQL

Results

  • Partner onboarding time 5 days → 5 hours
  • API throughput +6x
  • p95 latency under 80ms
Logistics Freight Network

Challenge

Needed a public tracking API for 3,000+ enterprise customers.

Solution

GraphQL gateway over event-sourced tracking pipeline + rate limiting.

GraphQL Kafka Redis Hasura

Results

  • Tracking queries 12M/day
  • p99 under 200ms
  • Customer integration time down 70%
SaaS B2B Platform

Challenge

API versioning hell breaking customer apps on every release.

Solution

Contract-first design + automatic SDK generation + deprecation pipeline.

OpenAPI Speakeasy TypeScript GitHub Actions

Results

  • Zero breaking-change incidents
  • SDKs in 6 languages auto-generated
  • Customer churn from API issues to 0

What Clients Say

“Partner onboarding went from a week to an afternoon.”

Khalid R.

“Tracking API handles 12M queries a day at sub-200ms p99. It just works.”

Arjun S.

“Zero breaking-change incidents since the contract-first migration.”

Sarah J.

Our Process

  1. 1

    Discovery

    Understand goals, audit the current state, and scope the work.

  2. 2

    Design & Planning

    Architecture, UX, and a sprint-by-sprint roadmap.

  3. 3

    Build

    Agile delivery with bi-weekly demos and transparent progress.

  4. 4

    QA & Hardening

    Automated and manual testing, security review, performance tuning.

  5. 5

    Launch & Support

    Go-live, monitoring, and ongoing maintenance.

Industries We Serve

Sector-specific experience delivering API Development Company across regulated and high-growth industries.

SaaS FinTech E-commerce EdTech Healthcare Enterprise
We align technology with your vision.

Finding solutions to complex problems in every sector within days, not years.

Emerging technologies.

Initiate emerging tech solutions to shape a smarter, connected, and innovative future.

How we can support you.

Using effective and powerful sector-specific technology, our experts help you attain your goals.

Healthcare
Education
FinTech
Sports and Media
AI solutions
Political
Energy, Oil and Gas
Retail and E-commerce
Travel and Logistics
Headless commerce

Why choose greatworks?

Delivering innovation, efficiency, and reliability to drive your success. Trust our expertise to build smarter, future-ready solutions.

Expert development team.

Our team has years of industry experience and expertise to deliver high-quality results every time.

Innovative solutions.

We leverage the latest tools, technology, and creative strategies to provide innovative solutions that drive results.

Efficient and punctual.

The development was completed efficiently, balancing both financial constraints and time management.

Product focused and Quality assurance.

Innovation and customer satisfaction with a strong commitment to excellence throughout the product lifecycle.

Speed and Growth.

Provide scalability, flexibility, and rapid deployment while maintaining quality, ensuring timely and high-standard delivery.

Let’s your idea into reality!

Here to assist, whenever you’re ready.

Wherever your journey takes you, we’re here to assist. Want more insights? Ready to start? We've got your back.

Let’s chat

Frequently Asked Questions

Do you support post-launch maintenance?

Yes — monthly retainers cover security patches, dependency upgrades, and feature releases.

Can you work with our existing in-house team?

Yes. We embed, pair-program, and run code reviews alongside in-house engineers.

How do you handle SEO and Core Web Vitals?

We ship to Lighthouse 90+ as a baseline, with structured data and image optimisation as part of every build.

What about accessibility?

WCAG 2.1 AA-compliant markup, semantic HTML, and keyboard navigation are part of every project.

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