Affordable Custom API Development FirmAPI Development
We build custom APIs that connect your systems and scale with your data. Fixed price, 8-12 week delivery, senior engineers only.
IRPR is an affordable custom API development firm. We build REST, GraphQL, and gRPC APIs using Node.js, Python, Go, and Postgres. Every API is designed for low latency, high throughput, and easy integration.
We ship production-ready APIs in 8-12 weeks. Pricing starts at $80K and goes to $250K depending on complexity. All projects include HIPAA, PCI-DSS, or SOC 2 compliance if needed. You own the code and the infrastructure.
CTOs hire us when their in-house team is overloaded. Startup founders hire us to build the backend for their MVP. Enterprise architects hire us to replace legacy SOAP APIs with modern REST or GraphQL endpoints. Product managers hire us to add API integrations with Stripe, Salesforce, or HubSpot.
Types of software we ship.
REST API Development
Build stateless RESTful APIs with OpenAPI specs, JWT auth, and rate limiting. Deploy on AWS Lambda or ECS.
GraphQL API Development
Create flexible GraphQL APIs with Apollo Server, schema stitching, and real-time subscriptions. Ideal for complex data queries.
gRPC API Development
High-performance gRPC APIs using Protocol Buffers for microservices communication. Low latency, strong typing.
Third-Party API Integration
Connect your app to Stripe, Salesforce, HubSpot, Twilio, or any REST/SOAP API. Handle webhooks, retries, and rate limits.
API Gateway & Proxy
Deploy API gateways with Kong or AWS API Gateway. Add caching, authentication, and request throttling in one layer.
Data API & ETL Pipeline
Build APIs that serve aggregated data from multiple sources. Use Apache Kafka or AWS Kinesis for real-time streaming.
Internal API & Microservices
Design internal APIs for microservice architectures. Use Docker, Kubernetes, and service mesh for discovery and resilience.
API Documentation & SDK
Generate interactive API docs with Swagger/OpenAPI. Build client SDKs in Python, JavaScript, or Java for your partners.
We build for every business type.
Ecommerce & Retail
Healthcare & Life Sciences
Fintech & Banking
SaaS & Platform Companies
Logistics & Supply Chain
Why choose IRPR as your affordable custom API development firm
We deliver production APIs faster and cheaper than most agencies because we use proven patterns and senior engineers.
IRPR has shipped over 200 products across 50 countries. Our engineers average 10+ years of experience. We use a fixed-price model so you know the cost upfront. No hourly billing, no surprise invoices.
Every API project starts with a 2-week Roadmap phase. We define endpoints, data models, auth flows, and deployment architecture. You get a fixed quote before any code is written. Typical timelines are 8-12 weeks for a complete API.
How IRPR compares to other API development firms
Most agencies charge by the hour and deliver late. IRPR gives you a fixed price and a firm timeline.
Generic dev shops often start coding without a clear spec. They use junior developers and change scope mid-project. You end up paying more for less.
IRPR works differently. We define the full API contract in the Roadmap phase. Senior engineers write every line of code. We ship on time or we discount your next project.
- Hourly billing with no cap
- Junior developers on your project
- No fixed timeline
- Scope creep without change orders
- No compliance expertise
- You don't own the code
- Fixed price from the Roadmap phase
- Senior engineers only (10+ years avg)
- 8-12 week delivery guarantee
- Scope locked in week 2
- HIPAA, PCI-DSS, SOC 2 ready
- Full code ownership
Our API development process: from idea to production
We follow a 4-phase process that eliminates surprises and delivers a working API fast.
Phase 1 is the Roadmap. We map every endpoint, data model, and integration. You get a detailed spec and a fixed price. Phase 2 is the build. Our engineers code the API in 6-10 weeks using your preferred stack.
Phase 3 is the release. We deploy to staging, run load tests, and fix any issues. Phase 4 is the handoff. You get source code, CI/CD pipelines, monitoring dashboards, and documentation.
What ships with every API project
Every API we build comes with production-ready infrastructure and documentation.
You don't just get code. You get a complete deployment package. We set up CI/CD, monitoring, error tracking, and API documentation. Everything is ready for your team to maintain.
We also include a 30-day warranty. If anything breaks or needs tweaking, we fix it at no extra cost. After that, we offer ongoing support at a monthly rate.
- Source code in your private GitHub repo
- CI/CD pipeline with GitHub Actions or GitLab CI
- API documentation with Swagger/OpenAPI
- Postman collection for testing
- Monitoring with Datadog or Grafana
- Error tracking with Sentry
- Load test results with k6
- Deployment scripts for AWS, GCP, or Azure
- 30-day warranty with Slack support
What we ship in this practice.
Payment Gateway API for Fintech Startup
Built a REST API that processes 10,000 transactions per day. Integrated with Stripe and Plaid. Reduced payment failure rate by 40%. Tech stack: Node.js, PostgreSQL, Redis, AWS ECS.
Patient Data API for Telehealth Platform
Developed a FHIR-compliant API for patient records and appointment scheduling. Handles 50,000 requests per hour. HIPAA compliant. Tech stack: Python, FastAPI, PostgreSQL, AWS Lambda.
Product Catalog API for Ecommerce Brand
Created a GraphQL API that serves product data to a React storefront and a mobile app. Reduced page load time by 60%. Tech stack: Apollo Server, MongoDB, Redis, Vercel.
Order Management API for Logistics Company
Built a gRPC API for real-time order tracking across 3 warehouses. Integrated with ShipStation and FedEx. Cut order processing time from 4 hours to 15 minutes. Tech stack: Go, PostgreSQL, NATS, Kubernetes.
Multi-Tenant API for SaaS Platform
Designed a REST API with tenant isolation, rate limiting, and usage metering. Supports 500+ customers. SOC 2 compliant. Tech stack: Node.js, Postgres, Redis, AWS API Gateway.
Real Estate MLS API for Property Portal
Developed an API that aggregates MLS listings from 10 sources. Normalizes data into a single schema. Reduced data sync time from 24 hours to 30 minutes. Tech stack: Python, Django, PostgreSQL, Celery.
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 write a single line of code.
Senior engineers only
Our team averages 10+ years of experience. No junior developers. Every engineer has shipped production APIs for companies like Stripe, Airbnb, and Shopify.
8-12 week delivery
We ship production-ready APIs in 8-12 weeks. Our process is optimized for speed. We use proven patterns and reusable components to cut development time.
Full code ownership
You own every line of code we write. No licensing fees, no lock-in. We transfer the repo to you at the end of the project. You can modify, deploy, or sell it.
Compliance built in
We build HIPAA, PCI-DSS, and SOC 2 compliant APIs. We handle encryption, audit logging, and access controls. Your API passes compliance audits on day one.
30-day warranty
After launch, we fix any bugs or issues for 30 days at no extra cost. We stay on Slack for quick questions. Your API runs smoothly from day one.
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.