API Development & Integration

Overview

What we deliver

We design and build REST and GraphQL APIs with clear contracts, strong security, and documentation that engineering teams trust.

We build APIs that your internal teams, partners, and external customers can rely on. Our engineers start with the use case and traffic model, then design endpoints, authentication, and data contracts that match how the API will be consumed. We work in REST or GraphQL based on fit and write code in Node.js, Python, or Go depending on your stack. Security is built in from the start. We implement OAuth, API keys, rate limiting, input validation, and audit logging. We add automated tests, performance benchmarks, and clear OpenAPI or GraphQL schema documentation so consumers can integrate without long support cycles. We also handle versioning, deprecation policies, and developer portals when needed. Whether you are exposing data to mobile apps, launching a public API, or stitching microservices, we deliver predictable, observable, and maintainable interfaces ready for production load.

Fit Check

Built for teams like yours

Who it's for

Product teams launching new APIs
Companies opening data to partners
SaaS platforms adding integrations
Mobile app teams needing back-end services
Enterprises modernizing legacy interfaces

Pain points we solve

Unclear or missing API documentation
Inconsistent endpoint design
Weak authentication and rate limiting
Poor performance under load
Slow partner onboarding

What's included

Capabilities

Everything we cover in this engagement.

API discovery and contract design
REST and GraphQL development
Authentication and authorization
Rate limiting and throttling
OpenAPI and schema documentation
Automated test coverage
Performance and load testing
Developer portal setup

How we work

Our process

A clear, predictable path from kickoff to outcomes.

01

Discovery

We review use cases, consumers, and data sources with your team.

02

Design

We define endpoints, payloads, and auth flows in a contract.

03

Build

We implement services, tests, and observability hooks.

04

Document

We publish OpenAPI specs, examples, and changelogs.

05

Launch

We deploy, monitor, and support handover to your team.

What you get

Deliverables & outcomes

What you get

API contract and schema files
Production-ready API service
Authentication and rate limit setup
OpenAPI or GraphQL documentation
Test suite and CI pipeline
Monitoring and alerting setup

Outcomes you can expect

Faster partner and client integration
Stable performance under load
Reduced support tickets for integrations
Clear versioning and deprecation paths
Stronger security posture

Timeline

6 to 16 weeks per API surface

Engagement

Monthly retainer, Project, Sprint

Tools we use

Node.js, Python, Postman, Swagger, AWS API Gateway

KPIs we track

API uptime, P95 response time, Error rate, Time to first successful call, Partner integration time

Client stories

What clients say

"

We were drowning in tier-one tickets about password resets and appointment changes. They built a deflection layer on top of our help desk and kept their agents in the loop for anything sensitive. Volume to humans dropped 58 percent in two months and our patient NPS held steady. The hybrid handoff is the part most vendors get wrong. They did not.

P.M.

"

Our LCP was 4.8 seconds and Google was punishing us for it. They audited the build, dumped two plugins we did not need, moved hero images to a real CDN, and rewrote the critical CSS. LCP came down to 1.6 seconds within three weeks. Bounce rate on the pricing page dropped by a quarter without us touching the copy.

Sarah K.

Proof