Affordable Custom API Development PartnerDevelopment Partner
We build secure, scalable APIs that integrate with your stack. Fixed price, 8-12 weeks, 200+ products shipped.
IRPR builds custom APIs for web and mobile apps, using Node.js, Python (FastAPI), Go, Postgres, Redis, and cloud-native services like AWS Lambda and GCP Cloud Run. We handle REST, GraphQL, WebSocket, and gRPC.
Every API ships in 8-12 weeks with a fixed price starting at $80K. We comply with HIPAA, PCI-DSS, SOC 2, and FERPA. You get full ownership of the code and a CI/CD pipeline.
Our clients include startup CTOs who need a production-grade API fast, mid-market engineering leads integrating third-party services, healthcare IT directors building FHIR APIs, and fintech VPs launching payment gateways.
Types of software we ship.
REST API
Build standardized RESTful endpoints with OpenAPI specs, auto-generated docs, and Postman collections.
GraphQL API
Flexible GraphQL interfaces using Apollo Server or Hasura, with real-time subscriptions and schema stitching.
WebSocket API
Real-time bidirectional APIs for chat, live dashboards, and IoT with AWS API Gateway WebSocket support.
gRPC API
High-performance gRPC services with protobuf definitions, streaming, and polyglot client support.
Integration API
Custom connectors to Salesforce, HubSpot, Stripe, Shopify, and other SaaS platforms with sync logic.
Internal API
Microservice APIs with service mesh, circuit breakers, and observability via Prometheus and Grafana.
Public API
Developer-facing APIs with portal, authentication (OAuth2, API keys), rate limiting, and usage analytics.
Data API
Data-serving APIs with complex querying, caching (Redis, CDN), pagination, and ETL pipelines.
We build for every business type.
Healthcare
Fintech
Ecommerce
SaaS
Real Estate & Logistics
Why IRPR is your affordable custom API development partner
We deliver production-grade APIs on time and on budget.
IRPR has shipped over 200 custom APIs for clients across 50 countries. Our senior engineers specialize in building APIs that handle millions of requests per day with 99.9% uptime.
From healthcare FHIR APIs to fintech payment gateways, every API is built with security, monitoring, and documentation baked in. We use automated testing and continuous deployment to keep release cycles short.
How we differ from generic API shops
We don't do hourly billing or ambiguous deliverables.
Generic agencies often start with a vague statement of work and bill by the hour. This leads to scope creep, missed deadlines, and hidden costs.
IRPR works differently: we spend the first two weeks defining a precise Roadmap with wireframes, tech stack, and a fixed price. You know the cost and timeline before we write a line of code.
- Vague project scoping
- Hourly billing
- Unknown timelines
- Junior developers
- No compliance knowledge
- Code ownership unclear
- Fixed price from Roadmap
- No surprise invoices
- 8-12 week delivery
- Senior engineers only
- HIPAA/PCI/SOC 2 built-in
- Full code ownership
Our API development process in 4 phases
From idea to production, we follow a structured roadmap.
Each phase has clear deliverables and checkpoints. You stay involved without micromanaging.
We use agile sprints with biweekly demos and a dedicated Slack channel.
What ships with every API engagement
You get more than just code.
- Source code in your Git repository
- CI/CD pipeline with GitHub Actions or GitLab
- Sentry error tracking and performance monitoring
- OpenAPI / Postman collection for testing
- Dockerized environment for local development
- Logging and alerting via Datadog or CloudWatch
- API documentation hosted on developer portal
- Load testing report and performance benchmarks
- Security audit report (OWASP top 10 checked)
- SLA with 99.9% uptime guarantee
What we ship in this practice.
FHIR API for telehealth platform
Built a FHIR-compliant API that integrates with Epic and Cerner. Reduced patient data retrieval from 30 minutes to under 2 seconds. Tech stack: Node.js, Express, PostgreSQL, AWS Lambda, and HL7 FHIR.
Payment gateway API for fintech startup
Developed a PCI-DSS compliant payment orchestration API that routes transactions through Stripe, Braintree, and Authorize.net. Saved the client 15% on processing fees. Tech stack: Python FastAPI, Redis, PostgreSQL, AWS ECS.
Product catalog API for ecommerce brand
Created a GraphQL API that unifies product data from Shopify and a custom warehouse system. Cut product update time from 4 hours to 15 minutes. Tech stack: Apollo Server, MongoDB, Redis, Shopify Admin API.
Integration API for SaaS CRM
Built a connector API that syncs contacts and deals between HubSpot and Salesforce in real-time. Eliminated manual data entry for 50+ sales reps. Tech stack: Python Flask, Celery, PostgreSQL, AWS SQS.
MLS data API for real estate platform
Developed a REST API that aggregates MLS feeds from 20+ sources with deduplication. Enabled property search with sub-500ms response times. Tech stack: .NET Core, SQL Server, Elasticsearch, Azure Functions.
Student data API for edtech platform
Built a FERPA-compliant API that integrates with PowerSchool and Canvas. Reduced grade sync time from overnight batch to real-time. Tech stack: Ruby on Rails, PostgreSQL, Resque, AWS RDS.
Why teams hire us.
Fixed price, not hourly
We quote a fixed price after the two-week Roadmap phase. No hourly billing, no scope creep charges, no surprises.
Senior engineers only, no junior bench
Every engineer on your project has 8+ years of experience. We don't staff junior devs to cut costs - you get a senior team from day one.
HIPAA, PCI-DSS, SOC 2 compliance built in
Our compliance team reviews every API endpoint for security requirements. We have shipped HIPAA-compliant APIs for 30+ healthcare clients and PCI-DSS for 20+ fintech apps.
Full code ownership from day one
You own all source code, documentation, and infrastructure. We deliver everything to your own Git repository with no licensing restrictions.
Production-grade by default
Every API ships with monitoring (Sentry, Datadog), CI/CD, load testing, and security audits. We don't leave production readiness as an afterthought.
Async-first with daily overlap
Our team works across US time zones with daily standup overlap. We use Slack, GitHub, and weekly demos to keep you informed without micromanagement.
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.