Experienced Custom API Development StudioAPI Development
We build production-grade APIs for your product. 200+ APIs shipped in 8-12 weeks at a fixed price.
IRPR is an experienced custom API development studio. We build REST, GraphQL, and gRPC APIs using Node.js, Python, Go, and PostgreSQL. Every API is designed for scalability, security, and maintainability.
We ship a production-ready API in 8-12 weeks. Pricing is fixed, starting at $80K and scaling to $250K for complex integrations. All APIs comply with HIPAA, PCI-DSS, or SOC 2 as required.
We work with CTOs who need a secure backend for their SaaS, product managers launching a mobile app with a custom API, and founders building a platform that integrates with Stripe, Salesforce, or Shopify. You own the code from day one.
Types of software we ship.
REST API Development
Stateless, cacheable APIs for web and mobile clients. Uses Express.js, FastAPI, or Django REST Framework.
GraphQL API Development
Flexible query language for complex data needs. Built with Apollo Server, Hasura, or Prisma.
gRPC API Development
High-performance, bidirectional streaming APIs for microservices. Uses Protocol Buffers and Go or C++.
Webhook & Event-Driven API
Real-time event notifications using webhooks, AWS EventBridge, or Kafka. Integrates with Zapier, Slack, and more.
Third-Party API Integration
Connect your app to Salesforce, HubSpot, Shopify, Stripe, Twilio, or any external service. Custom adapters and error handling.
Internal Microservice API
Decouple monolithic apps into independent services. Uses Docker, Kubernetes, and message queues like RabbitMQ.
Public API / Developer Portal
Expose your product’s capabilities with documentation, rate limiting, API keys, and usage analytics. Built with Stoplight or Swagger.
Data Aggregation & ETL API
Collect, transform, and serve data from multiple sources. Uses Apache Airflow, dbt, and PostgreSQL or Snowflake.
We build for every business type.
SaaS platforms
Fintech & payments
Healthcare & life sciences
Ecommerce & retail
Logistics & supply chain
Why an experienced custom API development studio matters
A poorly designed API costs you customers and developer hours. Here is what we deliver.
An experienced custom API development studio like IRPR builds APIs that last. We use versioning from day one (e.g., /v1/, /v2/), enforce rate limiting with Redis, and implement OAuth 2.0 or JWT for authentication. Every endpoint has automated tests covering edge cases.
We also handle documentation automatically with OpenAPI specs. Your frontend team gets a working Postman collection and a Swagger UI. This cuts integration time by 30% on average.
The difference between IRPR and a generic dev shop
Not all API developers are equal. Here is what separates us.
Generic shops treat APIs as afterthoughts. They write one endpoint, test it manually, and move on. That leads to breaking changes, undocumented endpoints, and slow performance under load.
IRPR treats APIs as products. We design a contract first (OpenAPI), write integration tests before code, and set up monitoring with Datadog or Sentry from the first sprint. Your API ships with a CI/CD pipeline and a 99.9% uptime guarantee.
- No API contract before coding
- Manual testing only
- No rate limiting or caching
- No monitoring or alerting
- No documentation beyond a README
- Hourly billing with unlimited scope
- Contract-first design with OpenAPI
- Automated unit + integration tests
- Redis caching and rate limiting by default
- Datadog dashboards and Sentry error tracking
- Auto-generated Swagger UI and Postman collection
- Fixed price with clear scope in Roadmap phase
Our process for building your custom API
From idea to production in 8-12 weeks. Here are the steps.
We start with a two-week Roadmap phase. During this time, we define the API contract, choose the tech stack (Node.js, Python, Go, or Rust), and set up the infrastructure. You get a fixed quote for the full build.
Then we build in two-week sprints. Every sprint ends with a deployable endpoint. You see real progress, not slide decks. By week 8-12, the API is in production with documentation, monitoring, and a CI/CD pipeline.
What ships with every API we build
You get more than endpoints. Here is everything included.
Every API we build comes with a complete delivery package. No missing pieces, no hidden work. You can deploy and maintain it yourself from day one.
We also provide a one-week warranty after launch. If anything breaks, we fix it at no extra cost.
- Source code in your GitHub or GitLab repo
- OpenAPI 3.0 specification with auto-generated docs
- Postman collection with example requests
- CI/CD pipeline (GitHub Actions or GitLab CI)
- Dockerized deployment with Docker Compose
- Sentry error tracking and Datadog APM monitoring
- Unit and integration tests (Jest, pytest, or Go test)
- Rate limiting with Redis or in-memory store
- OAuth 2.0 or JWT authentication middleware
- API key management and usage analytics
What we ship in this practice.
Real-time inventory API for an ecommerce brand
Built a GraphQL API that syncs inventory across Shopify, Amazon, and a physical warehouse. Reduced overselling by 95%. Tech stack: Apollo Server, PostgreSQL, Redis, AWS Lambda.
HIPAA-compliant patient data API for a telehealth startup
Created a REST API for patient records, appointment scheduling, and video session metadata. Achieved HIPAA compliance with encryption at rest and in transit. Tech stack: FastAPI, PostgreSQL, AWS KMS, Twilio.
Payment orchestration API for a fintech platform
Developed a unified API that routes payments through Stripe, Adyen, and Braintree. Handled $5M in monthly transactions with 99.99% uptime. Tech stack: Go, PostgreSQL, Redis, Kubernetes.
Internal microservice API for a logistics company
Replaced a monolithic legacy system with 12 gRPC microservices. Reduced deployment time from 2 hours to 5 minutes. Tech stack: Go, gRPC, RabbitMQ, Docker, Terraform.
Public API for a SaaS analytics platform
Designed and built a developer portal with rate limiting, API keys, and usage dashboards. Onboarded 50+ third-party developers in the first quarter. Tech stack: Node.js, Express, Redis, Postgres, Stoplight.
Data aggregation API for a real estate marketplace
Built an ETL pipeline that ingests MLS data from 200+ sources and serves it via a unified REST API. Reduced data latency from 24 hours to 15 minutes. Tech stack: Python, Apache Airflow, PostgreSQL, Snowflake.
Why teams hire us.
Fixed price, not hourly
Every API project gets a fixed quote after the Roadmap phase. You know the cost before we write a line of code. No hourly billing, no surprise invoices.
Senior engineers only
Our team consists of engineers with 8+ years of experience. No junior developers. Every API is built by someone who has shipped production APIs for companies like Stripe and Shopify.
You own the code
We put the source code in your repository from sprint one. You hold the IP. There is no lock-in, no license fees, no recurring payments for the code.
Compliance built in
We build HIPAA, PCI-DSS, and SOC 2 compliant APIs by default. We use encryption, audit logs, and access controls from the start. No retrofitting.
98% on-time delivery
We have shipped over 200 APIs with a 98% on-time rate. Our sprint-based process ensures steady progress. You see working endpoints every two weeks.
Post-launch support included
Every API comes with one week of free post-launch support. We monitor logs, fix bugs, and help your team take over. After that, we offer maintenance at $150/hour.
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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