How long does it take to build an API?

Most projects are delivered in 8-12 weeks from kickoff. The first prototype is ready by week 3 so your frontend team can start integrating. Larger microservices projects may take up to 16 weeks.

What tech stack do you use for API development?

IRPR uses Node.js, Go, and Python for backend logic, with PostgreSQL, MongoDB, or Redis for data. We deploy on AWS or GCP using Docker and Kubernetes. For API specs we use OpenAPI 3.0 or AsyncAPI.

Can you integrate with my existing systems?

Yes. IRPR has integrated with over 200 third-party APIs including Stripe, Salesforce, HubSpot, Twilio, and Epic. We handle OAuth 2.0, webhooks, and custom authentication flows.

Do you handle API security and compliance?

Absolutely. Every API we build includes authentication (JWT, OAuth 2.0, API keys), rate limiting, and encryption at rest and in transit. We follow OWASP guidelines and can achieve HIPAA, PCI-DSS, and SOC 2 compliance.

Who owns the API code after the project?

You own full IP and source code. We transfer everything to your GitHub or GitLab repo. There are no licensing fees or ongoing royalties.

How quickly can we start?

We can kick off your project within 1-2 weeks of signing the Roadmap agreement. The initial phase involves a 2-week discovery to finalize scope and produce a fixed-price contract.

Do you offer post-launch support?

Yes. Every engagement includes 1 week of hyper-care support after launch. We also offer monthly retainer options for ongoing maintenance, monitoring, and feature additions.

studio.online·50+ countries

est. 2026·parent: irpr.agency ↗

API Consultants

Experienced API Development ConsultantsAPI Development

We design and build APIs that your developers will love. REST, GraphQL, microservices - delivered on time, on budget.

See our work

200+APIs shipped

12 wksaverage delivery

50+countries served

99.9%uptime

─── [ how it works ] ───

Idea

discovery + brief

wk 1-2

Roadmap

architecture + price

wk 2

Product

design + build + test

wk 3-12

Release

launch + support

wk 12+

what ships

Source codeCI/CDTestsDocsMonitoringHandoff

compliance ready

RESTGraphQLHIPAA/PCI

IRPR specializes in building production-ready APIs for fast growing companies. We use Node.js, Go, Python, and cloud-native tools like AWS API Gateway, Kong, and Hasura to ship REST, GraphQL, and gRPC interfaces that scale.

Every project ships in 8-12 weeks with a fixed price from $80K to $250K. We handle compliance out of the box - HIPAA for healthcare, PCI-DSS for payments, SOC 2 for SaaS.

We work with CTOs who need a reliable API backend for their product, engineering leads integrating third-party services, startup founders launching a SaaS MVP, and enterprise architects migrating to microservices.

─── [ what we build ] ───

Types of software we ship.

REST API Development

Build RESTful endpoints with OpenAPI specs, auto-generated docs, and rate limiting using Kong or NGINX.

GraphQL API Design

Design GraphQL schemas with Apollo or Relay, resolver optimization, and real-time subscriptions.

Microservices Architecture

Decompose monoliths into event-driven microservices with Docker, Kubernetes, and message queues.

API Gateway Implementation

Deploy and configure API gateways like AWS API Gateway or Tyk for routing, auth, and throttling.

Third-Party API Integration

Integrate with Stripe, Salesforce, HubSpot, and 100+ other SaaS APIs using secure OAuth 2.0 flows.

Real-Time API (WebSocket)

Build low-latency WebSocket APIs for chat, live updates, and streaming data with Socket.IO or WS.

API Security & Authentication

Implement JWT, API keys, OAuth 2.0, and mTLS with rate limiting and AWS WAF for production safety.

API Documentation & Developer Portal

Generate interactive docs with ReadMe or Stoplight, plus SDK examples in 5 languages for developers.

─── [ built for your business ] ───

We build for every business type.

API consulting for

SaaS Companies

B2B platformssubscription managementCRM systemsproject management toolsHR softwareanalytics platformsemail marketing tools

API consulting for

Healthcare

EMR/EHR integrationtelemedicine APIspatient portalsHIPAA-compliant data exchangepharmacy systemslab data APIs

API consulting for

Fintech

payment gatewaysbanking APIsKYC/AML servicesrobo-advisorscryptocurrency exchangeslending platforms

API consulting for

Ecommerce

product catalog APIsinventory managementorder processingpayment integrationsshipping APIsmarketplace APIs

API consulting for

Logistics & Travel

route optimizationreal-time trackingbooking APIssupply chain integrationfleet managementtravel aggregators

/01

Why Experienced API Development Consultants Matter

APIs are the backbone of modern software. A poorly designed API costs months of rework.

IRPR has shipped over 200 APIs across 50 countries. Our experienced API development consultants follow a strict design-first process that prevents breaking changes and reduces integration time by 40%.

Clients who use IRPR for API consulting see 3x faster time-to-market for their products. We enforce versioning, error handling, and monitoring from day one.

APIs shipped

200+

faster integration

40%

average delivery

12 wks

starting investment

$80K

/02

Generic Dev Shop vs IRPR

Most agencies treat APIs as an afterthought. We do not.

Many development shops write APIs that lack documentation, security reviews, and performance testing. This leads to fragile integrations and expensive rewrites within months.

IRPR treats every API as a product. We deliver versioned specs, automated tests, and production monitoring as part of every engagement.

the difference

✗ generic dev shop

No API design standards
No automated testing
No security review
No documentation beyond code comments
No performance benchmarks
No post-launch monitoring

✓ IRPR

API-first design with OpenAPI/AsyncAPI specs
Integration tests with Postman/Newman
Security audit with OWASP top 10 checks
Auto-generated documentation with Stoplight/ReadMe
Load testing with k6 to 99th percentile
Production monitoring with Datadog/Grafana

/03

How We Build Your API in 4 Phases

Every project follows a repeatable process that de-risks delivery.

Our experienced API development consultants use a phased approach to ensure quality at every step. We deliver a working prototype by week 3 and a production API by week 10.

Each phase includes a review gate where you see running code and provide feedback. No surprises, no hidden work.

Discovery & Design

We map your data model, define endpoints, and write OpenAPI 3.0 specs. You approve the contract before a line of code is written.

Prototype & Validation

We build a working prototype with mocked data for your frontend team to test. We iterate on feedback in 1-week sprints.

Production Build

We add authentication, error handling, logging, and performance testing. Your API gets deployed to a staging environment for UAT.

Release & Handoff

We launch to production with CI/CD, monitoring dashboards, and a developer guide. You get 1 week of white-glove support.

/04

What Ships with Every API Project

We hand over a complete, production-ready API system.

Every project includes everything your team needs to maintain and extend the API. No missing pieces, no surprises.

ships by default

Source code in your private repo
OpenAPI 3.0 specification
CI/CD pipeline with automated tests
API key authentication or OAuth 2.0
Rate limiting and throttling config
Error logging with Sentry
Performance dashboards
Postman collection for testing
Developer onboarding guide
1-week post-launch support

─── [ use cases ] ───

What we ship in this practice.

Healthcare

Patient Scheduling API

Built a HIPAA-compliant REST API for a telemedicine startup. The API reduced manual scheduling errors by 95% and integrated with Epic EHR via FHIR. Tech stack: Node.js, PostgreSQL, AWS Lambda.

◆ shipped pattern

Fintech

Payment Gateway API

Designed a PCI-DSS compliant API for a fintech that processes $50M monthly. Added idempotency keys and webhook replay. Tech stack: Go, Stripe Connect, Redis.

◆ shipped pattern

Ecommerce

Product Catalog API

Developed a GraphQL API for an ecommerce brand with 10,000 SKUs. Cut product page load time from 3s to 200ms using caching and pagination. Tech stack: Apollo Server, MongoDB, AWS CloudFront.

◆ shipped pattern

SaaS

Subscription Management API

Created a REST API for a SaaS platform handling 100,000 subscribers. Reduced churn by 15% through proactive billing alerts. Tech stack: Node.js, Stripe Billing, PostgreSQL.

◆ shipped pattern

Logistics

Real-Time Tracking API

Built a WebSocket API for a logistics firm tracking 5,000 vehicles. Delivered position updates every 2 seconds with 99.9% uptime. Tech stack: Python, Kafka, Redis Streams.

◆ shipped pattern

Travel

Booking Engine API

Architected a microservices API for a travel aggregator connecting 200 hotels. Handled 10,000 concurrent bookings without downtime. Tech stack: Go, NATS, Elasticsearch.

◆ shipped pattern

─── [ why irpr ] ───

Why teams hire us.

Fixed price from day one

Every project gets a fixed quote after the 2-week Roadmap phase. No hourly billing, no surprise invoices, no scope creep charges.

Senior engineers only

Our consultants average 10+ years of experience. No juniors, no outsourcing, no handoffs. You work directly with the people building your API.

Compliance built in

We handle HIPAA, PCI-DSS, and SOC 2 as part of the standard build. No extra fees or separate compliance audits needed.

Documentation included

Every API ships with auto-generated documentation via Stoplight or ReadMe. Your team gets interactive docs with code samples in 5 languages.

Performance tested

We run load tests with k6 to validate throughput and latency at 99th percentile. Your API handles peak traffic from day one.

On-time delivery guarantee

98% of our projects launch on the original timeline. If we slip, we cover the extra weeks at no cost.

─── [ how we engage ] ───

Idea → Roadmap → Product → Release.

Every engagement runs through the same four-stage pipeline. Predictable by design.

stage · 01

I·1

Idea

discovery · brief

stage · 02

R·2

Roadmap

architecture · plan

stage · 03

P·3

Product

design · build · ship

stage · 04

R·4

Release

rollout · handoff

─── [ faq ] ───

Questions clients ask first.

IRPR charges a fixed price of $80K to $250K depending on the complexity of the API. This covers design, build, documentation, and deployment. We provide a exact quote after the 2-week Roadmap phase.

─── [ explore ] ───

Related services and industries.

Services

Web App Development Mobile App Development AI Integration SaaS MVP Development Ecommerce Development Cloud & DevOps UI/UX Design Data & Analytics

Industries

Healthcare Fintech E-commerce SaaS Real Estate EdTech Manufacturing Logistics Media Travel

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.