Top API Development ConsultantsDevelopment Consultants
We are among the top API development consultants for B2B and B2C products. Our team has shipped over 200 custom APIs in 50+ countries.
IRPR builds custom APIs for mobile and web applications using Node.js, Python FastAPI, Go, and AWS API Gateway. We design RESTful and GraphQL endpoints that handle thousands of requests per second.
Each API project ships in 12-14 weeks at a fixed price between $80,000 and $250,000. We handle compliance like HIPAA for healthcare, PCI-DSS for fintech, and SOC 2 for SaaS.
We work with CTOs who need a scalable backend for their SaaS, product managers building mobile app integrations, and startup founders launching an MVP with a clean API layer.
Types of software we ship.
REST API Development
Building RESTful endpoints for CRUD operations with proper HTTP methods, status codes, and pagination using Express or FastAPI.
GraphQL API Development
Flexible data querying with Apollo Server or Hasura, allowing clients to fetch exactly what they need in a single request.
API Integration Services
Connecting third-party APIs like Stripe, Twilio, Salesforce, and HubSpot with secure authentication and error handling.
API Security Consulting
Implementing OAuth 2.0, JWT, rate limiting with Redis, and data encryption to protect endpoints from abuse and breaches.
API Documentation and Testing
Generating OpenAPI 3.0 specs, Postman collections, and automated integration tests to keep your API developer-friendly.
API Migration Services
Moving from monolithic REST to microservices or upgrading API versions with zero downtime using API Gateway and blue-green deployments.
API Performance Optimization
Improving response times with caching (Redis, CDN), connection pooling, and load balancing across multiple regions.
API Monitoring and Analytics
Setting up Datadog or New Relic dashboards, error tracking with Sentry, and custom alerts for latency and error rates.
We build for every business type.
Fintech
Healthcare
E-commerce
SaaS
Media & Content
Why Top API Development Consultants Matter
The right API architecture determines your product's scalability, security, and speed.
A poorly designed API leads to expensive rework and slow performance. IRPR's team has built APIs that handle 10,000+ requests per second with 99.9% uptime.
Our consultants review your product requirements, data model, and integration points before writing a single line of code. This upfront planning cuts development time by 30%.
Generic Dev Shop vs Top API Consultants
Not every development firm can design APIs for scale, security, and long-term maintainability.
Generic dev shops often skip API versioning, miss error handling, and ignore security standards. They deliver endpoints that break under load and require constant patching.
IRPR treats APIs as products. We design with OpenAPI specs, enforce rate limiting, and include monitoring from day one. Every API ships with Postman collections and integration tests.
- No API documentation
- No versioning strategy
- No rate limiting
- No error standardization
- No security audit
- No performance testing
- OpenAPI docs generated
- Semantic versioning (v1.0 -> v2.0)
- Rate limiting with Redis
- Standard error responses (RFC 7807)
- OAuth 2.0 + JWT + role-based access
- Load testing with k6 before release
How IRPR Delivers Top API Consulting
Our process ensures your API is built right the first time.
We follow a structured approach from discovery to deployment. Each phase includes deliverables you can test and approve.
The entire process takes 12-14 weeks for a production-ready API with full documentation and monitoring.
What Ships with Every API Project
You get more than just endpoints. Every engagement includes these deliverables.
Our clients receive a complete API product, not a code dump. Everything is designed to be maintained and scaled by your team.
We also provide a runbook and a one-hour walkthrough for your engineers.
- OpenAPI 3.0 specification (YAML/JSON)
- Postman collection with all endpoints and test data
- Source code in your GitHub/GitLab repo
- CI/CD pipeline (GitHub Actions or CircleCI)
- Environment-specific config files (.env templates)
- Database migration scripts (PostgreSQL/MySQL)
- Rate limiting configuration (Redis-backed)
- Error logging with Sentry alerts
- Unit tests (Jest or Mocha) with 90%+ coverage
- Deployment runbook with rollback procedures
What we ship in this practice.
Payment Processing API for Fintech Startup
Built a REST API that handles 5,000+ transactions per second with PCI-DSS compliance. Tech stack: Go, PostgreSQL, Stripe Connect, Redis, AWS ECS.
Patient Data API for Telemedicine Platform
Designed a HIPAA-compliant GraphQL API that reduced data retrieval time by 60%. Tech stack: Node.js, Apollo Server, MongoDB, AWS Lambda, Auth0.
Inventory API for E-commerce Marketplace
Created a real-time inventory sync API connecting 200+ suppliers, cutting stockout errors by 80%. Tech stack: Python FastAPI, Kubernetes, RabbitMQ, PostgreSQL.
Integration API for SaaS CRM
Developed a unified API layer that integrates HubSpot, Salesforce, and Mailchimp, saving the client 20 engineering hours per month. Tech stack: Node.js, Prisma, AWS API Gateway, Terraform.
Content Delivery API for Media Platform
Optimized a video streaming API that reduced latency by 40% using CDN caching and adaptive bitrate. Tech stack: Go, MinIO, CloudFront, FFmpeg.
Booking API for Travel Aggregator
Built a multi-supplier booking API that handles 10,000+ requests per second with 99.95% uptime. Tech stack: Java Spring Boot, Redis, Kafka, AWS Aurora.
Why teams hire us.
Fixed Price, Not Hourly
Every API project gets a fixed quote after the Roadmap phase (week 2). No hourly billing. No surprise invoices. Our average API project costs $80K-$250K.
Senior Engineers Only
Every consultant has 10+ years of experience. No junior developers. Our team averages 12 years in backend engineering, with deep knowledge of API security and performance.
End-to-End Ownership
We handle everything from API design to deployment. You get a production-ready API with CI/CD, monitoring, and documentation. No handoffs to a separate ops team.
Security and Compliance Built In
Every API includes OAuth 2.0, JWT, rate limiting, and data encryption. We have delivered HIPAA, PCI-DSS, and SOC 2 compliant APIs for clients in regulated industries.
Full Code Ownership
You own all source code, docs, and infrastructure scripts. No licenses, no vendor lock-in. You can deploy, modify, and scale the API with your team after we hand it over.
2-Week Kickoff
We start scoping within 1-2 business days after your discovery call. Within two weeks we deliver a detailed Roadmap with timelines, tech stack, and fixed price.
Idea → Roadmap → Product → Release.
Every engagement runs through the same four-stage pipeline. Predictable by design.
Questions clients ask first.
Related services and industries.
Ready to build? Let's talk.
30-minute discovery call. No deck. We'll tell you honestly what it takes, how long, and how much.