We are senior engineers who build production-grade APIs in 8-12 weeks. You get code owned by you, delivered on time, at a fixed price.
IRPR builds custom APIs for companies that need more than a basic CRUD endpoint. Our experienced API development developers use Python (FastAPI, Django REST), Node.js (Express, NestJS), Go, and Kotlin to design, build, and document APIs that handle millions of requests per day.
Every API project ships in 8-12 weeks at a fixed price between $80K and $250K. We follow your compliance requirements: HIPAA for healthcare, PCI-DSS for fintech and ecommerce, SOC 2 for SaaS. We own no code - you get the full repo, CI/CD pipeline, and deployment scripts.
Our buyers are CTOs at Series A startups who need a secure API layer for their product, engineering leads at healthcare companies who must meet HIPAA data handling rules, fintech founders integrating with banking APIs (Plaid, Stripe, Dwolla), and ecommerce operations directors syncing inventory across Shopify, BigCommerce, and a custom warehouse API.
Build stateless, cacheable REST APIs with proper versioning, pagination, and rate limiting. We use OpenAPI/Swagger for docs.
Deliver a single GraphQL endpoint that lets frontend teams query exactly what they need. We use Apollo with Node.js or Hasura.
Architect a distributed system of small, independent services communicating via gRPC or message queues like RabbitMQ.
Connect your app to Stripe, Salesforce, HubSpot, or custom SOAP/REST endpoints. We handle auth, rate limits, and error recovery.
Create a public or private API product that external partners can use. Includes API keys, usage tiers, and developer portal.
Build WebSocket or Server-Sent Events (SSE) APIs for live dashboards, chat, and monitoring. We use Socket.IO or AWS AppSync.
Design cross-service APIs for your own engineering team to use. We document with Swagger and test with Postman collections.
Review existing APIs for OWASP Top 10 risks, rate limiting gaps, and improper auth. We fix vulnerabilities and add monitoring with Datadog.
A poorly built API costs you in security breaches, slow integrations, and lost customers.
IRPR's experienced API development developers design APIs that handle 10,000 requests per second without crashing. We set up proper error handling (HTTP 400s, retries, circuit breakers), authentication (JWT, OAuth 2.0, API keys), and monitoring (Sentry errors, Datadog latency). In one project, we rebuilt a fintech API that had 23% downtime - after us, it hit 99.9% uptime for 18 months straight.
We use code generators to produce typed SDKs for your API so your frontend team never touches raw HTTP. Our API documentation is auto-generated from the spec and hosted on your domain. We also write integration tests that run on every commit, catching breaking changes before they reach production.
Not all API developers are equally experienced. Here is what separates IRPR from the rest.
Most dev shops assign junior engineers to API projects because they think any developer can build a REST endpoint. The result is inconsistent error formats, no versioning, and security vulnerabilities that surface months later. IRPR assigns senior engineers with 7+ years of API experience to every project.
We start with a specification phase where we write the entire API contract in OpenAPI before writing a single line of code. Your team reviews and approves the contract. This single practice eliminates 80% of integration bugs. After approval, we build, test, and deploy in parallel - not sequentially.
We follow a repeatable framework that delivers a production-ready API in 8-12 weeks.
Every API project follows the same four-phase process: Idea, Roadmap, Product, Release. This structure was refined over 200+ projects and ensures we never skip a quality step.
In the Roadmap phase (week 2), we produce a fixed quote, a timeline, and a full API contract in OpenAPI. You approve it. Then we build the Product in 6-8 weeks, and the Release phase includes load testing against your target traffic and setting up monitoring.
You own everything. No vendor lock, no hidden fees.
When IRPR finishes your API project, you receive a complete, production-ready package. Your team can extend it, maintain it, or pass it to another agency. We do not hold any code or access ransom.
Built a HIPAA-compliant REST API for a health insurance startup that aggregates provider data from 12 sources. The API handles 5 million queries per month and reduced data lookup time from 15 seconds to 200ms. Tech stack: FastAPI, PostgreSQL, Redis, AWS Lambda.
Designed and built a PCI-DSS Level 1 compliant payment API that supports 45 currencies and 8 payment gateways (Stripe, Adyen, Braintree, etc.). The API processes $3M in transactions monthly with zero security incidents. Tech stack: Node.js, Express, MongoDB, Stripe Connect.
Built a WebSocket API that syncs inventory across 4 warehouses and 3 storefronts (Shopify, BigCommerce, custom frontend). The API reduced stockout incidents by 80% and saved the operations team 20 hours per week. Tech stack: Node.js, Socket.IO, PostgreSQL, AWS SQS.
Created a REST API for a B2B SaaS product that serves 500 tenants. Each tenant gets isolated data, custom rate limits, and API keys. The API integrates with Stripe for usage-based billing and Metronome for invoice generation. Tech stack: Python, FastAPI, PostgreSQL, Redis, Stripe.
Built a GraphQL API that normalizes listing data from 23 different MLS systems into a single schema. The API ingests 200,000 new listings daily and serves 5,000 real estate agents. Tech stack: Node.js, Apollo Server, PostgreSQL, Redis, Elasticsearch.
Developed a set of microservices that implement the IMS Global LTI 1.3 standard for a learning management system. The API handles SSO (OIDC), grade passback (LIS 2.0), and deep linking. It integrated with Canvas and Blackboard within 4 weeks. Tech stack: Node.js, Express, MongoDB, Redis.
Every API project is built by developers with 7+ years of experience. We do not staff juniors. Your project gets a lead engineer who has shipped at least 10 APIs before.
After the Roadmap phase, we give you a fixed price (typically $80K-$250K) and a hard timeline (8-12 weeks). No hourly billing, no surprises. If we miss the deadline, we tell you before it happens.
We write the full API contract in OpenAPI 3.0 during week 2. You approve every endpoint, error code, and response schema. This single step eliminates rework and integration delays.
We handle HIPAA, PCI-DSS, SOC 2, and FERPA from day one. Our engineers configure logging, encryption, and access controls as they build each endpoint - not during a separate security review.
You own the source code, CI/CD pipeline, and documentation. We deploy to your AWS, Azure, or GCP account. You can fire us today and your team takes over tomorrow with zero disruption.
Every project includes 30 days of post-release support where we fix bugs, answer questions, and make minor changes. We also provide a one-hour walkthrough session with your engineering team.
Every engagement runs through the same four-stage pipeline. Predictable by design.
30-minute discovery call. No deck. We'll tell you honestly what it takes, how long, and how much.
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