Expert API Development ConsultantsAPI Development
We build production-grade APIs for startups and enterprises. 200+ products shipped, 8-12 week delivery, fixed pricing.
IRPR is a team of senior engineers who act as expert API development consultants. We design and build REST, GraphQL, and gRPC APIs using Node.js, Python, Go, and Postgres. Every API ships with OpenAPI documentation, automated tests, and a CI/CD pipeline.
We deliver a production-ready API in 8-12 weeks. Pricing is fixed at $80K-$250K depending on complexity. We handle compliance for HIPAA, PCI-DSS, SOC 2, and FERPA. You get full source code ownership and a 1-year warranty on all work.
Our clients include CTOs at Series A startups who need a scalable API for their SaaS product, engineering leads at healthcare companies who require HIPAA-compliant data exchange, and product managers at fintech firms who need PCI-DSS certified payment APIs. We also work with ecommerce brands building custom checkout and inventory APIs.
Types of software we ship.
REST API Development
Build RESTful APIs with Express.js, FastAPI, or Django REST Framework. Includes versioning, rate limiting, and Swagger docs.
GraphQL API Consulting
Design GraphQL schemas with Apollo Server or Hasura. Optimize queries, implement subscriptions, and manage caching.
gRPC API Development
Build high-performance gRPC services with Protocol Buffers. Ideal for microservices and real-time data streaming.
API Integration Services
Connect your app to third-party APIs like Stripe, Salesforce, HubSpot, and Twilio. Handle auth, webhooks, and error retries.
API Security Audit
Audit your API for OWASP Top 10 vulnerabilities. Implement OAuth 2.0, JWT, API keys, and rate limiting.
API Documentation
Generate interactive API docs with Swagger UI, Postman collections, and Markdown guides. Keep docs in sync with code.
Microservices API Design
Design and build microservices with Docker, Kubernetes, and message queues like RabbitMQ or Kafka.
API Migration & Modernization
Migrate legacy SOAP or monolithic APIs to modern REST or GraphQL. Reduce latency and improve developer experience.
We build for every business type.
Healthcare
Fintech
Ecommerce
SaaS
Logistics & Travel
Why Hire Expert API Development Consultants
Building a production-grade API requires more than just code. It requires architecture, security, and scalability planning.
IRPR's expert API development consultants have shipped over 200 APIs for clients in 50 countries. We use a proven 4-phase process: Idea, Roadmap, Product, Release. In the Roadmap phase (week 2), we deliver a detailed API specification with endpoints, data models, and auth flows. This eliminates guesswork and keeps your project on budget.
We write every API with automated tests, rate limiting, and monitoring from day one. Our APIs handle 10,000+ requests per second and maintain 99.9% uptime. We deploy on AWS, GCP, or Azure using Terraform and Kubernetes. You get a fully documented, secure, and scalable API that your team can extend immediately.
Generic Dev Shop vs Expert API Consultants
Not all API development teams are the same. Here is how IRPR differs from a generic dev shop.
Generic dev shops often treat API development as a side task. They use boilerplate code, skip documentation, and ignore security. You end up with an API that breaks under load and costs more to maintain.
IRPR treats your API as a product. We design for scale, write comprehensive tests, and document every endpoint. Our APIs are built to pass compliance audits and handle real-world traffic from day one.
- No API specification before coding
- No automated tests for endpoints
- No rate limiting or auth
- No monitoring or alerting
- No documentation beyond code comments
- Hourly billing with no fixed price
- Detailed API spec in week 2 (Roadmap phase)
- 100% test coverage for all endpoints
- OAuth 2.0, JWT, API keys, rate limiting
- Sentry + Datadog monitoring from day one
- OpenAPI docs + Postman collection
- Fixed price from $80K, no surprises
Our API Development Process
We follow a 4-phase process that de-risks your API project and delivers on time.
Every API project starts with the Idea phase. We map your business requirements to API endpoints, data models, and integration points. This takes 1-2 weeks and costs $5K-$10K.
The Roadmap phase delivers a complete API specification with endpoint definitions, auth flows, error handling, and a deployment plan. You approve the spec before we write a single line of code.
What Ships With Every API
Every API project includes these deliverables by default. No hidden costs.
We believe in full transparency. Every API ships with source code, documentation, and infrastructure code. You own everything.
- Source code in your GitHub/GitLab repo
- OpenAPI 3.0 specification (Swagger UI)
- Postman collection with example requests
- CI/CD pipeline on GitHub Actions or GitLab CI
- Automated test suite (unit + integration + e2e)
- Docker Compose for local development
- Terraform scripts for cloud deployment
- Sentry error tracking + Datadog monitoring
- Rate limiting and auth (OAuth 2.0 or JWT)
- 1-year warranty on all code
What we ship in this practice.
HIPAA-Compliant Patient Data API
Built a REST API for a telehealth startup that connects to Epic and Cerner EHRs. Handles 50,000 patient records daily. Reduced data entry time by 8 hours per week. Tech stack: Node.js, Express, PostgreSQL, AWS, HIPAA compliance.
PCI-DSS Payment Processing API
Designed a payment API for a fintech company that processes $2M in transactions monthly. Integrated with Stripe and Plaid. Achieved PCI-DSS Level 1 certification. Tech stack: Python, FastAPI, Stripe, Plaid, AWS.
Real-Time Inventory Sync API
Built a GraphQL API for an ecommerce brand with 10 warehouses. Syncs inventory across Shopify, Amazon, and their own storefront. Reduced overselling by 95%. Tech stack: Apollo Server, PostgreSQL, Redis, Shopify API.
SaaS Subscription Management API
Created a REST API for a B2B SaaS company that manages 5,000+ subscriptions. Handles billing, user roles, and webhooks. Reduced churn by 15% with automated dunning. Tech stack: Node.js, Express, Stripe, MongoDB, SOC 2.
MLS Real Estate Data API
Developed a REST API that aggregates MLS listings from 50+ sources. Provides real-time property data to 200+ real estate agents. Reduced data latency from 24 hours to 5 minutes. Tech stack: Python, FastAPI, PostgreSQL, Elasticsearch.
EdTech Gradebook API
Built a FERPA-compliant API for a K-12 school district serving 30,000 students. Integrates with Canvas and Blackboard. Reduced grade entry time by 10 hours per week per teacher. Tech stack: Node.js, Express, PostgreSQL, FERPA compliance.
Why teams hire us.
Fixed price, not hourly
Every API project gets a fixed quote in the Roadmap phase (week 2). No hourly billing, no surprise invoices, no scope creep charges. You know the cost before we build.
Senior engineers only
Every IRPR consultant has 10+ years of experience. No junior developers, no offshore teams. Your API is built by engineers who have shipped production systems at scale.
Compliance built in
We build HIPAA, PCI-DSS, SOC 2, and FERPA compliant APIs from day one. We handle audits, logging, and encryption. You get a compliance-ready API without extra cost.
Full source code ownership
You own every line of code we write. No licenses, no royalties, no lock-in. We hand over the repo, CI/CD pipeline, and infrastructure code at the end of the project.
1-year warranty
We fix any bugs or issues for free for 12 months after launch. No retainer, no hourly fees. If something breaks, we fix it within 24 hours.
8-12 week delivery
We deliver a production-ready API in 8-12 weeks. Our process is optimized for speed without sacrificing quality. You get a working API faster than hiring an in-house team.
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.
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