FirstBuild — Digital studio
We build the version people remember.
A studio for founders and executives — apps, websites, AI automation, and custom MCP servers. We ship software serious enough to be the argument.
Taking a select few founding partners.
- resolve_customer142ms
- fetch_invoices318ms
- reconcile_ledgerrunning
99.98%
success
0.4s
p95
14k
runs / mo
- Stack
- Next 16 · Tailwind v4 · TS
- Accessibility
- WCAG 2.2 AA
- Performance
- LCP < 1.2s target
- Engagement
- Fixed-scope sprints
What we build
Four disciplines. One standard — shown, not claimed.
Pick a discipline; each panel shows the real kind of thing we'd build you. The AI and MCP work is where most studios stop at the name-drop.
An MCP server is a secure, standard way to let AI assistants use your systems — read data, trigger workflows — instead of only talking about them.
- Scoped auth per tool, with a full audit trail
- Typed tools mapped to your real APIs
- Built to run in production, not as a demo
// 12 tools · p95 0.4s · 99.98% success
- resolve_customer
- fetch_invoices
- reconcile_ledger
- post_journal
- list_accounts
tool · reconcile_ledger
{
"input": { "period": "2026-Q2",
"account": "AR" },
"auth": "scoped",
"returns": "Report"
}connected · 12 tools · p95 0.4s
We connect the tools you already run and remove the manual steps between them — so a day of work runs on its own, correctly, every time.
- Mapped onto your existing stack
- Exception handling, not just the happy path
- Measured in hours returned, not features shipped
// 6 workflows · ~11h / wk returned
- Ingest orders210ms
- Match to invoices0.4s
- Flag exceptions120ms
- Post to ledgerrunning
6 workflows~11h / wk returned
Native-feeling iOS, Android, and web apps that hold up under real use — designed and engineered to a standard your team is proud to ship.
- One codebase where it earns its keep
- Offline-ready, 60fps, accessible by default
- Instrumented from day one
// 60fps · offline-ready · native + web
Active sessions
2,481
Marketing sites and product surfaces engineered like software — fast, accessible, precise to the pixel. This site is the reference build.
- Core Web Vitals held green
- WCAG 2.2 AA, keyboard-complete
- Content editable in a headless CMS
// LCP 0.9s · CLS 0.00 · 100 a11y
What we've shipped so far
A new studio, and honest about it.
One thing is already running in production. The rest are in build with our founding partners — named case studies land as they ship.
A custom MCP server
A secure MCP server that lets AI assistants act inside a real platform — reading data and triggering workflows through typed, scoped tools, with a full audit trail.
- list_accounts88ms
- post_journal204ms
- reconcile_ledger410ms
100%
success
0.4s
p95
12
tools
AI automation
A nightly reconciliation flow replacing a day of manual finance work. In build with a founding partner.
Product & web
A founder's first serious build — a native app and its marketing surface, designed and engineered together. In build.
How we work
A short path from decision to shipped.
Orient
We start with the decision you're actually trying to make — not a feature list. Scope, constraints, and the one outcome that matters.
Design
Interface, system, and content designed together. You see real screens early, on real data — not a deck of mockups.
Build
One senior team writing production code from week one. Fast feedback, visible progress, nothing thrown over a wall.
Ship
Launched, measured, and handed over clean — performance, accessibility, and docs included, so the work keeps holding up.
Our bias
We'd rather build one thing that becomes the reference than ten that blend in.
FirstBuild — studio principle
Start a project
Have something worth building?
Tell us what you're building. We take on a select few founding partners at a time — and we read every inquiry ourselves.