OAuth Integration
Auth that's secure by default — and out of your way.
Weeks
to launch, not quarters
100%
code & IP ownership
Fixed
pricing, agreed up front
Senior
engineers on every build
In short
OAuth Integration without the security holes
OAuth Integration is easy to get subtly wrong and expensive to get wrong badly. We implement authentication, SSO and user management using proven providers and patterns, so sign-in is secure, smooth and maintainable.
Clerk, Auth.js, Better Auth or a custom setup — matched to your needs, not a one-size default.
| What is it? | Custom-built oauth integration delivered with AI-assisted development. |
| Typical timeline | Weeks, not quarters — first working software in about 1–2 weeks |
| Tech stack | Next.js, React, TypeScript, PostgreSQL, Vercel |
| Pricing | Fixed, quoted after a free scoping call |
| Ownership | You own 100% of the code and infrastructure |
| Best for | Startups, SMBs and enterprises replacing manual work or off-the-shelf tools |
The problem
You've been burned by slow, over-budget builds
You need results, not another six-month project that runs over budget and ships something nobody uses.
What's broken
How it feels
"You shouldn't need a giant budget or a year of runway to get software that fits your business and actually gets used."
Why IMS
A software partner built for speed and trust
We get it — you've seen projects run long, blow the budget, or deliver something the team quietly abandons. That's exactly why we approach oauth integration differently: a small senior team, working software every week, and a fixed price you agree before we start.
AI-native team shipping production software in weeks, not quarters
Senior engineers on every build — no junior churn or offshore hand-offs
Fixed scope and pricing agreed before we write a line of code
You own 100% of the code and infrastructure — zero lock-in
Modern, proven stack: Next.js, TypeScript, PostgreSQL and Vercel
What you get
What you get
Secure by default
Proper session handling, hashing, MFA and provider best-practice — not a hand-rolled login waiting to leak.
The right provider
Clerk, Auth.js, Better Auth or custom — chosen for your stack, budget and control needs.
SSO & enterprise-ready
Single sign-on, SAML/OAuth and role management when you need to sell to bigger customers.
AI-accelerated delivery
We build with Claude Code, Cursor and modern AI tooling, so you ship in weeks what agencies quote in quarters — without cutting corners on quality.
Smooth for users
Fast sign-up, social login and password resets that just work, so auth never costs you a conversion.
You own everything
Source code, infrastructure and accounts are yours from day one. No proprietary platform, no lock-in, no hostage situation.
Use cases
Common use cases
Add auth to a new app
Secure sign-up, login, social and MFA using the right provider for your stack from day one.
Enterprise SSO
Add SAML/OAuth single sign-on and role management to unlock enterprise deals.
Fix or replace auth
Harden a hand-rolled login or migrate to a managed provider without disrupting users.
User & org management
Teams, roles, invitations and permissions for multi-tenant products.
How it works
How we work
Discovery & scoping
We map your workflows, data and goals on a focused strategy call, then scope a build with clear milestones, timeline and fixed pricing — no open-ended retainers.
AI-accelerated build
Our senior engineers pair with AI coding tools to ship production software in a fraction of the usual time. You see working software every week, not a status deck.
Launch, measure & iterate
We deploy, train your team and keep improving from real usage. The code is yours — clean, documented and handed over with no lock-in.
Deep dive
What great OAuth Integration actually looks like
What OAuth Integration really means
Good oauth integration starts with the business problem, not the technology. We scope tightly, build in the open, and hand you software that fits how you actually work. That's the whole idea behind how IMS approaches oauth integration: senior engineering, AI-accelerated delivery, and working software you can see every single week.
What's included
Every oauth integration engagement with IMS is built on the same foundation:
- Secure by default. Proper session handling, hashing, MFA and provider best-practice — not a hand-rolled login waiting to leak.
- The right provider. Clerk, Auth.js, Better Auth or custom — chosen for your stack, budget and control needs.
- SSO & enterprise-ready. Single sign-on, SAML/OAuth and role management when you need to sell to bigger customers.
- AI-accelerated delivery. We build with Claude Code, Cursor and modern AI tooling, so you ship in weeks what agencies quote in quarters — without cutting corners on quality.
- Smooth for users. Fast sign-up, social login and password resets that just work, so auth never costs you a conversion.
- You own everything. Source code, infrastructure and accounts are yours from day one. No proprietary platform, no lock-in, no hostage situation.
Our process
We keep it simple and transparent — three clear stages, with working software in your hands throughout:
1. Discovery & scoping
We map your workflows, data and goals on a focused strategy call, then scope a build with clear milestones, timeline and fixed pricing — no open-ended retainers.
2. AI-accelerated build
Our senior engineers pair with AI coding tools to ship production software in a fraction of the usual time. You see working software every week, not a status deck.
3. Launch, measure & iterate
We deploy, train your team and keep improving from real usage. The code is yours — clean, documented and handed over with no lock-in.
The stack we build on
We build oauth integration on a modern, proven stack — Next.js, React, TypeScript and Tailwind CSS on the front end, PostgreSQL (often via Supabase or Neon) for data, and Vercel for fast, global hosting. It's a deliberately boring-on-purpose toolchain: fast for your users, cheap to run, and familiar to whichever engineer you hire next.
Production-grade from day one
Secure authentication, real databases, automated tests, error handling and monitoring are part of the build, not an afterthought. The difference between a demo and oauth integration that survives real users is exactly this plumbing — and it's where we spend our care.
Built with AI, reviewed by engineers
AI coding tools like Claude Code and Cursor let a senior engineer produce far more, far faster. We use them every day, then review, architect and harden the output so you get the speed of AI-assisted development without the tech debt that comes from letting a tool run unsupervised.
Why AI-assisted development changes the math
The old economics of custom software — big teams, long timelines, huge budgets — pushed businesses toward generic tools in the first place. AI-accelerated delivery collapses that. OAuth Integration that once cost a fortune and took two quarters can now ship in weeks at a fraction of the price, so custom-fit software finally beats compromise software on cost as well as fit.
Related
Related capabilities
Explore related capabilities, or see the full picture on our AI & software development hub:
FAQ
OAuth Integration — frequently asked questions
Which auth provider should we use?
It depends on your stack and how much control you want. Clerk is fastest to ship; Auth.js and Better Auth keep everything in your codebase; custom makes sense for unusual requirements. We'll recommend the right one for your case and implement it properly.
Can you add SSO to our existing app?
Yes. We add single sign-on, OAuth and role-based access to existing apps, which is often what unlocks enterprise deals. We integrate it cleanly without forcing a rewrite of the rest of your auth.
Why choose IMS for oauth integration?
You get a senior team that ships production software in weeks using AI-assisted development, fixed pricing agreed up front, and full ownership of the code and infrastructure. No junior churn, no lock-in, and working software you can see every week.
How fast can you deliver?
Because we build with AI-assisted tooling, a working first version usually ships in weeks rather than months, with larger platforms rolled out in phases. You see working software every week instead of waiting for a big reveal.
Do we own the code and intellectual property?
Yes — completely. The source code, infrastructure and accounts are yours from day one, built on open, standard tools with no proprietary platform or lock-in.
How do we get started?
Book a free strategy call. We'll learn about your business and goals, then scope the work into clear milestones with fixed pricing and a timeline — so you know exactly what you're getting before any build begins.
Let's scope your build
Book a free strategy call. We'll tell you what we'd build, how long it takes and what it costs — no obligation.