Built on Closure
The platform is the engine.These are the proof.
Flagship products built entirely on the Closure graph — Assistant and Worlds showcase on Closure Platform, extending Closure into new application verticals and introducing new open protocols along the way. The web gave us pages. Closure gives us worlds.
Live on this site
Closure Assistant
An assistant with a face and a pipeline you can govern. Chat and Talk surfaces driven by one semantic workflow on the Organization graph — inference node, bounded tool loop, MicroForms that seal structured data out of the conversation. Kai is selling Closure on this site right now.
assist.closureapps.com · Closure Platform showcase
Free to enter · Homestead open
Closure Worlds
A persistent world, not a demo. An ocean planet with one charted island — Greenbeard Isle: Continuum City, Sealport, the Manifold range, Coherence University, the lazy Costa Lenta. Free Land Claim on founding Homestead parcels — build on what you own. Everyone knows there are other islands out there. No one has reached them yet.
world.closureapps.com · Closure Platform showcase
The Experience Web
The next web isn’t pages. It’s four primitives.
The current web is optimized for reading and clicking. The next web is optimized for entering and interacting.
Places
Where things happen — worlds, cities, buildings, interiors.
Characters
Who interacts — persistent intelligent identities, not NPCs.
Assets
What exists — owned, governed, tradable objects.
Organizations
Who owns and operates — identity, permissions, commerce.
New standards
Protocols, not lock-in.
Each flagship introduces open protocol work. Closure builds the first compatible implementation — the protocols don’t belong to the product.
CWP — Closure World Protocol
An open, graph-based protocol for publishing and linking interactive worlds: manifests, places, parcels and build rights, physics profiles, discovery. The graph is the source of truth; renderers are projections.
CAP — Closure Avatar Protocol
Persistent embodied identity: a mesh and viseme contract, renderer-independent animation frames, and the live Talk loop. One Character, many projections — chat panel today, world street tomorrow.
One graph underneath all of it.
That building is owned by an Organization. The person inside is an AI employee. The products are real Assets. The transactions are governed. The same graph powers the website, the assistant, and the world.