Semantic Runtime
Build Once.Evolve Forever.
Software has been producing the wrong artifact.
One command · Cursor · Claude Code · Codex · VS Code · Copilot
npx @closurenetwork/ide@latest initRun in a real terminal (not the agent shell). Then Connect MCP.
One graphMany surfaces
Software has always compiled human intent into code.
Closure compiles human intent into products.
Why teams buy
A faster, safer way to deliver software.
Build it once, not three times.
Site, canvas, world, assistant, and workflow are one product model — not four codebases and a process tool.
AI inside the application.
Agents operate on the same governed product model as your UI and process — not a chatbot bolted on.
Evolve the model, not the code.
Goals watch live Events and draft evolution proposals — you approve, the graph versions. Change the product without rewriting and redeploying.
Quality is a gate, not a hope.
Drift scans open Issues on the graph — i18n, brand, SEO, ops — and tiered heal fixes what it safely can. Promotion is blocked while high-severity Issues stay open.
Most software isn't unique — it's scaffolding wrapped around a business model. Closure makes the scaffolding part of the runtime. You author the business. Why a product graph? →
How it's organized
Four pillars. One product graph.
Experiences
Web, Canvas, 3D, Assistant — one product, four surfaces.
Workflows
Business process, agentic, and form — one runtime, human gates included.
Knowledge
What agents and apps may know — and what they may call.
Integrations
Connect out. Seal back. Keep your system of record.
Closure doesn't replace your IDE.
It gives your IDE a product model.Your agent learns the paradigm from the runtime, drafts against live schemas, and ships only through the gates every author passes — human or machine.
Experiences
One graph. Four Experiences.
Build the product once. Meet it as a site, a canvas game, a 3D world, or an assistant — same model underneath.
Web
Spec → mock → live sites and portals.
Explore Web →
Canvas
Arcade, casino, board — play in 2D.
Explore Canvas →
3D
Walkable worlds, characters, assets.
Explore 3D →
Assistant
Chat and Talk that write into your records.
Explore Assistant →
Shipping a portal, claims desk, or catalog? Same architecture — different pressure. See the solutions →
The Book
We wrote the book on it.
The Last Application traces seventy years of software producing the same artifact — and what happens when the artifact finally changes. Sixteen chapters on why applications rot, why every rewrite fails the same way, and how a governed product graph ends the cycle. Read it free.
Build once. Evolve forever.
Closure is invite-only while we heat toward launch. Request access — we'll approve and send an invite.