Hire an API Development PartnerDevelopment Partner
We build production-ready APIs in 8-12 weeks. Fixed price, senior engineers only.
IRPR is a senior-only API development partner. We design and build custom APIs using REST, GraphQL, and gRPC. Every API ships with OpenAPI documentation, automated tests, and a CI/CD pipeline on GitHub Actions.
A typical API project takes 8-12 weeks from kickoff to production. Fixed pricing starts at $80,000 and goes up to $250,000 depending on endpoints, integrations, and compliance needs. We support HIPAA, PCI-DSS, SOC 2, and FERPA.
CTOs hire us when their internal team lacks API expertise. Startup founders need a scalable backend for their MVP. Product managers need to integrate third-party services like Stripe, Salesforce, or Twilio. Enterprise architects need a secure, compliant API layer for legacy systems.
Types of software we ship.
REST API development
Build stateless, cacheable HTTP APIs for web and mobile clients. Use Express.js, FastAPI, or Django REST Framework.
GraphQL API development
Flexible query language for front-end driven apps. Use Apollo Server, Hasura, or Prisma for real-time data.
gRPC API development
High-performance, low-latency APIs for microservices. Use Protocol Buffers with Go, Java, or C#.
Third-party API integration
Connect your product to Stripe, Salesforce, HubSpot, Twilio, and 100+ other services. Secure OAuth 2.0 flows.
API gateway development
Centralized routing, rate limiting, and authentication. Use Kong, AWS API Gateway, or NGINX.
Webhook and event-driven API
Real-time notifications and event streaming. Use AWS EventBridge, RabbitMQ, or Apache Kafka.
Internal API development
Private APIs for internal microservices and data pipelines. Focus on performance, security, and monitoring.
API documentation and testing
Auto-generated docs with Swagger/OpenAPI. Integration tests with Postman, Supertest, and k6 for load testing.
We build for every business type.
Fintech and payments
Healthcare and life sciences
Ecommerce and retail
SaaS and platform businesses
Logistics and supply chain
Why You Need an API Development Partner
A well-designed API is the backbone of every modern product. IRPR has built 200+ APIs for clients in 50+ countries.
Building an API in-house takes months and costs more than hiring a dedicated team. Many companies spend 3-4 months just on design and prototyping. IRPR compresses that into a 2-week Roadmap phase where we define endpoints, data models, and authentication flows.
After the Roadmap, we build your API in 6-10 weeks with fixed pricing. You get a production-ready API with automated tests, monitoring via Sentry and Datadog, and deployment on AWS or GCP. No scope creep, no surprise invoices.
Generic Dev Shop vs IRPR as Your API Development Partner
Most agencies promise custom APIs but deliver copy-paste code. IRPR builds from scratch with senior engineers.
Generic dev shops often assign junior developers to API projects. They skip documentation, ignore security, and deliver late. You end up with a fragile API that breaks in production.
IRPR assigns a senior engineer with 10+ years of experience. We write OpenAPI specs before writing code. Every endpoint has unit tests, integration tests, and a security review. Your API ships on time and on budget.
- Junior developers on your project
- No OpenAPI documentation
- No automated tests
- Hourly billing with no cap
- Delays without communication
- No post-launch support
- Senior engineers only (10+ years)
- OpenAPI spec before coding
- 100% test coverage on critical paths
- Fixed price from $80K
- Weekly demos and Slack updates
- 30 days free post-launch support
Our API Development Process
IRPR follows a proven 4-phase process to deliver your API on time and on budget.
Every API project starts with a 2-week Roadmap. We define endpoints, data models, authentication, and integration points. You get a fixed price quote and a timeline.
Then we build your API in 6-8 weeks of active development. After that comes a 1-week Release phase with load testing, security audit, and deployment. You own the code from day one.
What Ships with Your API
Every API project includes these 8 deliverables by default. No hidden fees, no extra charges.
You get a production-ready API with full documentation, automated tests, and a CI/CD pipeline. IRPR gives you the source code, deployment scripts, and monitoring dashboards. Everything is yours.
- Source code in your GitHub/GitLab repo
- OpenAPI 3.0 documentation
- Unit tests with Jest or Pytest
- Integration tests with Postman or Supertest
- CI/CD pipeline on GitHub Actions
- Docker containerization
- Deployment scripts for AWS or GCP
- Sentry error tracking
- Datadog performance monitoring
- 30 days free post-launch support
What we ship in this practice.
Payment processing API for a fintech startup
Built a REST API for processing payments across 5 gateways (Stripe, Square, PayPal, Braintree, Adyen). Reduced transaction failures by 40%. Tech stack: Express.js, PostgreSQL, Redis, Stripe API.
Patient data exchange API for a telehealth platform
Developed a HIPAA-compliant API for exchanging EHR data between clinics and labs. Handles 10,000 requests/day with 99.9% uptime. Tech stack: FastAPI, FHIR, AWS RDS, Auth0.
Order management API for an ecommerce brand
Created a GraphQL API for managing orders, inventory, and shipping across 3 warehouses. Cut order processing time from 4 hours to 15 minutes. Tech stack: Apollo Server, MongoDB, Shopify API, ShipStation.
Subscription billing API for a SaaS platform
Built a gRPC API for subscription management with Stripe Billing. Supports 50,000 active subscriptions with automatic retries and dunning. Tech stack: Go, CockroachDB, Stripe, Docker.
Real-time tracking API for a logistics company
Developed an event-driven API using Kafka for real-time package tracking. Reduced customer support calls by 60%. Tech stack: Node.js, Kafka, PostgreSQL, WebSockets, AWS EKS.
Content delivery API for a media platform
Built a REST API for serving video metadata and streaming URLs to 1 million monthly users. Cached responses with Redis, achieved 50ms average latency. Tech stack: Django, PostgreSQL, Redis, CloudFront.
Why teams hire us.
Senior engineers only
Every IRPR engineer has 10+ years of experience. No juniors, no bootcamp grads. Your API is built by someone who has shipped production systems at scale.
Fixed price, not hourly
You get a fixed price quote after the Roadmap phase. No hourly billing, no surprise invoices. The price covers all features in the spec.
8-12 week delivery
Most API projects ship in 8-12 weeks. We work in 1-week sprints with a demo every Friday. You see progress every week.
Full code ownership
You own the source code, documentation, and deployment scripts from day one. No licensing fees, no vendor lock-in.
Compliance built in
We build APIs that comply with HIPAA, PCI-DSS, SOC 2, and FERPA. Our engineers know the security requirements for each standard.
Post-launch support included
Every project includes 30 days free post-launch support. We fix bugs, add minor endpoints, and help with deployment issues.
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.