affordable custom api development consultantsapi development
We build custom APIs for your product. Fixed price, senior engineers, 8-12 week delivery.
IRPR builds custom APIs that connect your apps, automate workflows, and scale with your business. We use Node.js, Python, Go, and Postgres to create REST and GraphQL endpoints that handle millions of requests per day.
Every project ships in 8-12 weeks with a fixed price between $80K and $250K. We handle compliance for HIPAA, PCI-DSS, SOC 2, and FERPA. You get full source code ownership and a CI/CD pipeline on day one.
Startups hire us to build their API-first product. CTOs hire us to replace legacy integrations. Product managers hire us to add payment, auth, or data sync features. Enterprise teams hire us to meet compliance deadlines.
Types of software we ship.
REST API development
Build stateless RESTful endpoints with Node.js and Express. Supports JSON, XML, and OAuth 2.0 authentication.
GraphQL API development
Create a single GraphQL endpoint with Apollo Server. Clients query only what they need, reducing over-fetching.
Payment API integration
Integrate Stripe, PayPal, or Braintree APIs for one-time charges, subscriptions, and invoicing with webhook handling.
CRM API integration
Connect Salesforce, HubSpot, or Zoho CRM via their REST APIs. Sync contacts, deals, and activities in real time.
Data sync API
Build ETL pipelines that move data between Postgres, MongoDB, Snowflake, and S3. Schedule syncs with Airflow.
Auth API development
Implement OAuth 2.0, SAML, or OpenID Connect with Auth0 or Okta. Supports multi-tenant and role-based access.
Webhook API development
Create webhook endpoints that receive and process events from Shopify, Stripe, Twilio, or SendGrid. Retry logic and logging included.
Internal API development
Build private APIs for microservices communication using gRPC or RabbitMQ. Supports rate limiting and circuit breakers.
We build for every business type.
Ecommerce
SaaS companies
Healthcare
Fintech
Logistics
Why hire affordable custom API development consultants
Building an API in-house is slow and expensive. IRPR gives you a senior team at a fixed price.
Most companies spend 6-9 months building an API with a junior team. They hit scope creep, broken endpoints, and security gaps. IRPR delivers a production-ready API in 8-12 weeks. Our engineers average 10+ years of experience. We have shipped 200+ products across 50 countries.
You get a fixed price quote in week 2 during the Roadmap phase. No hourly billing. No surprise invoices. We handle compliance for HIPAA, PCI-DSS, SOC 2, and FERPA. Your code stays in your repo. You own everything.
The difference between generic dev shops and IRPR
Not all API consultants are the same. Here is what sets IRPR apart.
Generic dev shops pitch you a low hourly rate and then bill you for every meeting, every email, every bug fix. They use junior developers who learn on your project. They hand you code with no tests, no docs, and no CI/CD. You are left with a fragile API that breaks in production.
IRPR gives you a fixed price upfront. Senior engineers write the code. You get automated tests, API documentation with Swagger, and a CI/CD pipeline on GitHub Actions. We monitor errors with Sentry and uptime with Datadog. Your API ships on time and stays running.
- Hourly billing with no cap
- Junior developers learning on your project
- No automated tests
- No API documentation
- No CI/CD pipeline
- No monitoring or error tracking
- Fixed price from week 2
- Senior engineers with 10+ years experience
- Automated test suite (unit + integration)
- Swagger/OpenAPI documentation
- CI/CD on GitHub Actions
- Sentry error tracking + Datadog monitoring
How we build your custom API in 8-12 weeks
Our process from idea to release. Every phase is fixed scope and fixed price.
We follow a four-phase framework: Idea, Roadmap, Product, Release. Each phase has clear deliverables and a fixed timeline. You know exactly what you get and when you get it.
The Roadmap phase (week 2) produces a detailed spec with endpoints, data models, and integration points. You approve it. Then we build. No surprises.
What ships with every custom API project
Every deliverable is included in the fixed price. No add-ons. No surprises.
When IRPR builds your API, you get more than just endpoints. You get a complete production system that your team can run and extend. Everything is documented and automated.
We set up your infrastructure on AWS, GCP, or Azure. We configure auto-scaling, load balancing, and database backups. Your API is ready for millions of requests.
- Source code in your GitHub repo
- CI/CD pipeline on GitHub Actions
- Automated test suite (unit + integration)
- Swagger/OpenAPI documentation
- Sentry error tracking
- Datadog monitoring dashboard
- Infrastructure as code (Terraform or Pulumi)
- Postgres or MongoDB database with migrations
- Rate limiting and authentication (OAuth 2.0 or JWT)
- 30-day post-release warranty
What we ship in this practice.
Payment API for a subscription SaaS
Built a Stripe integration with webhooks for subscription lifecycle events. Reduced manual invoicing by 12 hours per week. Tech stack: Node.js, PostgreSQL, Stripe, Redis.
Patient data API for a telehealth platform
Developed a HIPAA-compliant API to sync patient records between EHR and mobile app. Achieved 99.9% uptime with sub-200ms response times. Tech stack: Python, FastAPI, FHIR, AWS.
Order sync API for a multi-vendor marketplace
Created a GraphQL API that aggregates orders from 50+ vendors into a single dashboard. Reduced order processing time by 40%. Tech stack: Node.js, Apollo Server, MongoDB, RabbitMQ.
Fraud detection API for a fintech lender
Built a real-time scoring API that checks applications against 15 data sources. Cut false positives by 30%. Tech stack: Go, Postgres, Redis, Kafka.
Inventory sync API for a logistics company
Developed a REST API that syncs inventory across 12 warehouses and 3 ecommerce platforms. Reduced stockouts by 25%. Tech stack: Python, Django, Postgres, Celery.
CRM integration API for a real estate firm
Connected MLS data to HubSpot CRM via a custom API. Automated lead enrichment for 500+ agents. Tech stack: Node.js, HubSpot API, MLS, Postgres.
Why teams hire us.
Fixed price, not hourly
Every project gets a fixed quote in the Roadmap phase (week 2). No hourly billing, no surprise invoices, no scope creep charges.
Senior engineers only
Our team averages 10+ years of experience. No juniors. Every developer has shipped production APIs for healthcare, fintech, and ecommerce clients.
8-12 week delivery
We ship in 8-12 weeks because we use proven patterns, reusable components, and a fixed scope. 98% of our projects deliver on time.
Full code ownership
You own every line of code. We put it in your GitHub repo from day one. No proprietary frameworks, no vendor lock-in.
Compliance built in
We build APIs that pass HIPAA, PCI-DSS, SOC 2, and FERPA audits. We handle encryption, logging, access control, and data retention.
Production monitoring included
We set up Sentry for error tracking and Datadog for performance monitoring. You get alerts and dashboards out of the box.
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.