Leading REST API Development DevelopersAPI Development
We build production-grade RESTful APIs for SaaS, fintech, and healthcare. 200+ APIs shipped with 99.9% uptime.
IRPR builds REST APIs using Node.js, Python, Go, and Java. We design with OpenAPI specs, implement JWT authentication, and deploy on AWS or GCP with auto-scaling. Every API gets rate limiting, retry logic, and idempotency keys from day one.
Each API project ships in 8-12 weeks. Pricing starts at $80K and goes to $250K+ for complex multi-endpoint systems. We support HIPAA, PCI-DSS, and SOC 2 compliance with audit trails and encryption at rest and in transit.
Startups hire us to build public APIs for their SaaS products. Fintech companies need PCI-DSS compliant transaction APIs. Healthcare organizations require HIPAA-compliant data exchange. Enterprises want to modernize legacy SOAP services into RESTful interfaces.
Types of software we ship.
Public REST API for SaaS
Expose your app's core features via REST endpoints. We use Fastify, Stripe, Twilio, and SendGrid integrations for low-latency routing.
Internal REST API for Microservices
Connect microservices with a consistent REST layer. We use gRPC-to-REST gateways and RabbitMQ for async communication.
REST API for Mobile Backend
Power iOS and Android apps with a scalable REST API. We implement GraphQL wrappers, push notifications, and offline sync.
REST API for Payment Processing
Handle transactions, refunds, and webhooks securely. We integrate Stripe, Braintree, and PayPal with idempotency keys per request.
REST API for Data Aggregation
Aggregate data from multiple sources into a unified REST endpoint. We use Elasticsearch, Redis caching, and scheduled ETL jobs.
REST API for IoT Device Communication
Manage device registration, telemetry, and commands via REST. We use MQTT bridges, AWS IoT Core, and device-level authentication.
REST API for Third-Party Integrations
Build a public integration API for your partners. We include OAuth2 flows, webhook management, and usage analytics.
REST API for Real-Time Dashboards
Stream live data to dashboards via REST endpoints. We combine WebSockets, Redis Pub/Sub, and PostgreSQL for sub-second queries.
We build for every business type.
SaaS Companies
Fintech
Healthcare
Ecommerce
Real Estate
Why choose leading REST API development developers
We have shipped 200+ APIs with measurable results.
Every API we build is designed with an OpenAPI contract before any code is written. This approach eliminates integration surprises and lets you generate client SDKs in minutes.
Our APIs handle 10,000+ requests per second with 99.9% uptime. We include monitoring dashboards, error tracking, and automated scaling out of the box.
Generic dev shop vs IRPR
Most shops build one-off endpoints. We build production-grade APIs.
Generic shops often skip specification and testing. You get a pile of endpoints that break under load and have no documentation.
IRPR treats every API as a product. We deliver a contract-first spec, auto-generated docs, and full test coverage before deployment.
- No API specification upfront
- Inconsistent error handling
- No rate limiting
- No documentation
- No monitoring
- No versioning strategy
- OpenAPI contract before coding
- Uniform error responses with RFC 7807
- Rate limiting with Redis
- Auto-generated Swagger docs
- Prometheus+Grafana dashboards
- Semantic versioning and changelog
How we build your REST API
Four phases from contract to deployment.
We start with an OpenAPI spec that defines every endpoint, response, and error. You approve the contract before a single line of code is written.
After coding, we deploy to a staging environment with CI/CD and run load tests. You get full access to logs, metrics, and dashboards.
What ships with your API
Full ownership of code and infrastructure.
Every API project includes these deliverables.
- Source code in your GitHub repository
- OpenAPI specification document
- CI/CD pipeline with GitHub Actions
- AWS or GCP infrastructure as code (Terraform)
- Docker containers with health checks
- Rate limiting and authentication middleware
- Log aggregation with CloudWatch or Stackdriver
- Error tracking with Sentry
- Performance monitoring dashboard
- 1-month post-launch support
What we ship in this practice.
Payment Processing API for Fintech Startup
Built a RESTful payment API handling 10,000 transactions per second. Reduced payment failures by 30% using idempotency keys and webhook retries. Tech stack: Node.js, PostgreSQL, Stripe Connect, Redis.
FHIR-based API for Telehealth Platform
Developed a HIPAA-compliant API for patient data exchange. Integrated with Epic and Cerner EHRs, enabling 500+ providers to access records. Tech stack: Python, Flask, FHIR R4, AWS HealthLake.
Inventory Sync API for Ecommerce Brand
Built a REST API syncing inventory across Shopify, Amazon, and warehouse WMS. Reduced overselling by 95% and cut manual entry by 20 hours per week. Tech stack: Node.js, Express, RabbitMQ, MongoDB.
Real-time Offers API for Quick Service Chain
Created an API powering dynamic pricing and offers across 200 locations. Handled 5,000 requests per second with sub-50ms latency. Tech stack: Go, Gin, Redis, PostgreSQL.
Data Aggregation API for Real Estate Platform
Aggregated MLS listings from 10+ sources into a single REST API. Reduced query time from 3 seconds to 200ms with caching. Tech stack: Node.js, GraphQL (REST wrapper), Elasticsearch, AWS Lambda.
Subscription Management API for SaaS
Designed a REST API for pricing plans, usage metering, and invoicing. Supported 50,000 active subscriptions with 99.9% uptime. Tech stack: Ruby on Rails, Stripe, PostgreSQL, Sidekiq.
Why teams hire us.
Fixed price, not hourly
Every API project gets a fixed quote after our Roadmap phase (week 2). No hourly billing, no surprise invoices. Average project costs $80K-$250K.
Senior engineers only
Our team averages 10+ years of experience. No junior developers. Every API is built by engineers who have shipped at least 10 production APIs.
API-first architecture
We write the OpenAPI spec before any code. This ensures consistent design, testability, and client SDK generation. 95% of our APIs are consumed within a week of launch.
Compliance built in
We handle HIPAA, PCI-DSS, and SOC 2 as standard. All data at rest and in transit is encrypted. Audit logs are automatic.
98% on-time delivery
We track every project with a public roadmap. 98 out of 100 projects ship on the date promised. If we are late, you get a discount.
Full code ownership
You own all source code, specs, and infrastructure scripts. No licensing fees. No vendor lock-in. We transfer everything when you accept the release.
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.