Professional API Development VendorDevelopment Vendor
We build production-grade APIs in 8-12 weeks. 200+ products shipped with fixed pricing and full code ownership.
IRPR builds professional APIs using Node.js, Python, Go, Express, FastAPI, and Kong API Gateway. We design every endpoint with OpenAPI specs and test with Postman and Supertest.
Your API ships in 8-12 weeks with a fixed price between $80,000 and $250,000. Every project includes HIPAA, PCI-DSS, or SOC 2 compliance as needed. Source code, tests, and deployment scripts are all yours.
CTOs scaling internal tools hire us to replace fragile point-to-point integrations. Product managers launching SaaS platforms need our APIs for user auth, billing, and analytics. Engineering leads building microservices turn to us for API gateway and event-driven patterns. Startups choose IRPR when they need an API-first MVP ready for investors.
Types of software we ship.
REST API Development
Build stateless RESTful services with OpenAPI 3.0 specs. Use JWT auth, rate limiting, and auto-generated docs via Swagger UI.
GraphQL API Development
Implement GraphQL APIs with Apollo Server or Relay. Support queries, mutations, subscriptions, and real-time data with WebSockets.
gRPC API Service
Develop high-performance gRPC microservices using Protocol Buffers. Integrate with Envoy proxy for load balancing and observability.
WebSocket API
Build real-time WebSocket APIs for chat, live dashboards, and notifications. Use Socket.io or native WebSocket in Node.js.
Event-Driven API
Design event-driven APIs with Apache Kafka or AWS EventBridge. Enable async microservices with guaranteed delivery and replay.
API Gateway Configuration
Configure Kong, AWS API Gateway, or Azure API Manager. Add caching, throttling, authentication, and request transformations without code.
Third-Party API Integration
Integrate with Stripe, Salesforce, HubSpot, or Shopify. Handle OAuth 2.0 flows, webhooks, and error retry logic for reliable sync.
Internal API Development
Create backend-for-frontend (BFF) APIs tailored to web and mobile clients. Use Redis caching and PostgreSQL for low-latency responses.
We build for every business type.
Fintech
Healthcare
Ecommerce
SaaS
Logistics & Supply Chain
What a Professional API Development Vendor Delivers
Not every API project needs the same approach. We build what your integration actually requires.
IRPR has shipped over 200 API products across 50 countries. Our teams use standards like OpenAPI 3.0 and JSON:API to ensure consistent contract-first design. Every endpoint is tested with 90%+ code coverage using Jest or pytest.
We deliver APIs that handle 10,000 requests per second on average. Your API comes with Prometheus metrics, Grafana dashboards, and Sentry error tracking. You get a CI/CD pipeline on GitHub Actions that runs linting, tests, and deploys to AWS ECS or Kubernetes.
The Difference Between Generic Shops and a Real API Vendor
Most agencies say they build APIs. We prove it with measurable results and fixed contracts.
Generic development shops often treat APIs as an afterthought. They skip contract-first design, leave out monitoring, and hand off code with no documentation. IRPR starts every API with an OpenAPI spec approved by your team before writing a single line of code.
We enforce consistent error handling, pagination, and rate limiting out of the box. Your API ships with a Postman collection, auto-generated docs, and a runbook for operations. No surprises on launch day.
- No OpenAPI spec written upfront
- Inconsistent error format (400, 500, random strings)
- No rate limiting or throttling
- No authentication middleware (basic auth only)
- No logging or monitoring built in
- Code delivery without deployment scripts
- Contract-first design with OpenAPI 3.0
- Standardized error responses with RFC 7807 problem details
- Rate limiting with Redis + Kong
- JWT, OAuth 2.0, API keys ready to use
- Prometheus metrics + Grafana dashboards + Sentry alerts
- CI/CD pipeline with staging/prod deployment automation
How We Build Your Professional API in 8–12 Weeks
Our process removes guesswork. You see working endpoints every two weeks.
The Roadmap phase takes one week. We write the OpenAPI spec, define data models, and agree on authentication, rate limits, and error handling. You get a fixed price and timeline before any code is written.
After that, we build in two-week sprints. Every sprint ends with a deployable API on a staging environment. You test endpoints live and give feedback. By week 8 you get production-ready code with monitoring, documentation, and deployment scripts.
What Ships with Every Professional API Project
You don't just get endpoints. You get everything needed to run and maintain your API.
Every IRPR API project delivers a complete production environment. We don't stop at code. Your team gets the tools they need to debug, monitor, and scale without asking us for help.
All artifacts are placed in your own GitHub repository from day one. You own the source code, infrastructure code, and documentation. No license fees, no black boxes.
- Source code in your GitHub repository
- OpenAPI 3.0 spec with Swagger UI documentation
- Postman collection with example requests
- CI/CD pipeline using GitHub Actions (lint, test, deploy)
- Docker images and docker-compose for local development
- Helm charts or Terraform scripts for production deployment
- Prometheus metrics endpoint + Grafana dashboard template
- Sentry error tracking (with alerts for new errors)
- Runbook with startup, backup, and recovery procedures
- Admin API endpoints for key management and rate limit settings
What we ship in this practice.
Payment Processing API for a Fintech Startup
IRPR built a PCI-DSS compliant payment API using Go and Stripe Connect. The API handles 5,000 transactions per second with idempotency keys. The startup reduced payment failures by 40% and passed their PCI audit in the first attempt.
Patient Data API for a Telehealth Platform
We created a HIPAA-compliant FHIR API using Python FastAPI and PostgreSQL. The API syncs patient records across 200 clinics and supports real-time video session metadata. Data access latency dropped from 2 seconds to 120 milliseconds.
Order Management API for an Ecommerce Brand
IRPR built a GraphQL API using Apollo Server and Shopify's Admin API. The API handles order creation, inventory sync, and shipping label generation. The brand eliminated manual data entry for 1,200 orders per day.
Inventory Sync API for a 3PL Logistics Provider
We developed a WebSocket API using Node.js and AWS IoT Core. The API streams real-time inventory updates from 15 warehouses to client systems. The provider reduced stock discrepancy reports by 72% within the first month.
User Auth API for a SaaS CRM Platform
IRPR built an OAuth 2.0 / OpenID Connect API using Kong and Python. The API supports 50,000 concurrent users with social login, MFA, and passwordless options. The platform's sign-up conversion increased by 18% after launch.
Real-time Analytics API for a Media Company
We designed an event-driven API with Apache Kafka and Node.js. The API ingests 10 million events per hour from web and mobile clients. The media team now gets engagement dashboards with less than 5 seconds of delay.
Why teams hire us.
Fixed price, not hourly billing
Every API project gets a fixed quote after the Roadmap phase. You know the total cost by week 2. No hourly tracking, no surprise invoices, no scope creep charges.
Senior engineers only (10+ years experience)
Our team averages 12 years of software engineering experience. You work directly with the engineer who writes your API, not a junior contractor. We skip the junior-to-senior handoff overhead.
Full code ownership from day one
All source code is created in your own GitHub repository. You own everything: endpoints, tests, deployment scripts, and documentation. No license fees or IP transfers needed.
8-12 week delivery to production
We ship a working API in 8 weeks for standard projects and 12 weeks for complex multi-integration systems. Every sprint ends with a deployable staging environment.
Compliance built into every layer
We build HIPAA, PCI-DSS, and SOC 2 controls directly into your API. Encryption, audit logs, access controls, and data retention policies are part of the spec, not an afterthought.
Post-launch support and knowledge transfer
After launch we provide 4 weeks of production support to handle any issues. Your team gets a full runbook, training session, and direct access to the engineer who built the API.
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.