Urban Game Theory — Consensus Builder
Inspect real parcels, create and edit urban plans, compare alternatives, and share 2D/3D designs.
What can you do with Urban Game Theory — Consensus Builder?
- Buildings: blocks, row houses, detached houses and editable freeform footprints.
- Public space: parks with planting, paths and ponds; squares with furniture; lakes.
- Transport: roads with editable lane profiles, rail alignments and transit stations.
- Land readjustment: new plot boundaries, owner allocations, shares and cash balancing.
- Alternatives: local drafts, 2D/3D inspection, before/after views, parcel comparisons and forks.
- Coordination: owner deals, owner or community voting, shareable proposals and plans.
Install
Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).
claude mcp add --transport http urban-game-theory-consensus-builder 'https://urbangametheory.xyz/mcp'{
"mcpServers": {
"urban-game-theory-consensus-builder": {
"type": "http",
"url": "https://urbangametheory.xyz/mcp"
}
}
}Documentation
From the project's README on GitHub, refreshed weekly. Links open on GitHub.
Contents
Consensus Builder · Urban Game Theory
Explore real land. Design a possible future. Build support for it.
A free browser-based planning tool for people and agents. Start from the globe, choose a place, and design buildings, streets and public spaces on real land. Inspect alternatives in 2D and 3D, share a proposal or a whole plan, and explore how ownership, funding and forecasts shape what happens next.
Open the app · Watch the walkthroughs · Pitch deck · Demo
Try it
- Pick a city on the globe, or explore a place beyond the available parcel coverage.
- Click land and choose Propose here, select several parcels, or draw a site.
- Design the change, finish it, and inspect the result in 3D.
- Compare alternatives, fork a counterproposal, and share the design for discussion.
Drawing and exploring need no crypto wallet. Applying a draft on your map is separate from sharing, owner consent and execution. Coverage and ownership detail depend on the local source; the globe and map show what is available.
What you can make
- Buildings: blocks, row houses, detached houses and editable freeform footprints.
- Public space: parks with planting, paths and ponds; squares with furniture; lakes.
- Transport: roads with editable lane profiles, rail alignments and transit stations.
- Land readjustment: new plot boundaries, owner allocations, shares and cash balancing.
- Alternatives: local drafts, 2D/3D inspection, before/after views, parcel comparisons and forks.
- Coordination: owner deals, owner or community voting, shareable proposals and plans.
The experimental Hyperstition: Markets for Possible Cities build also connects proposals to funding, pledges, prediction markets, public-record evidence and agent APIs. Its public demo uses Solana Devnet. See the protocol and trust assumptions before using those integrations.
Learn more
| For | Start here |
|---|---|
| New users | How to use · Hrvatske upute |
| Designers and workshops | Buildings · Public space · Land readjustment · Roads, rail and stations |
| Reviewers | Views and counterproposals · Roadmap |
| Developers and agents | Documentation index · Local development · API and agent quickstart |
| Protocol contributors | Protocol build · Architecture · Build and verification |
The walkthrough library contains twelve concise narrated demonstrations of the current map workflow, with English captions and transcripts. Written instructions are available in English and Croatian; the app also supports Serbian and Spanish.
Code and contributions
The frontend uses JavaScript, Leaflet and Three.js. The API uses Node.js, Express and PostgreSQL/PostGIS; optional chain integrations live separately under blockchain/.
| Directory | Purpose |
|---|---|
frontend/ | Globe, maps, proposal tools, 3D views and public guides |
backend/ | API, shared proposal records, monitoring and agent services |
blockchain/ | Smart contracts and chain integrations |
restatements/ | Existing situations and plans restated in the app, with sources |
world-parcels/ | Parcel-source research and coverage evidence |
Start with the development guide, check test scope, and open a focused issue or pull request with a reproducible example. For a planning workshop, a city integration or a research collaboration, contact the project on Telegram.
Follow @UrbanGameTheory · Telegram community
License
This branch is released under the MIT License. Third-party code, imagery and datasets retain their own licences and attribution requirements.
Frequently asked questions
What is Urban Game Theory — Consensus Builder?
Inspect real parcels, create and edit urban plans, compare alternatives, and share 2D/3D designs.
How do I install Urban Game Theory — Consensus Builder?
It runs as a remote server. In Claude Code: claude mcp add --transport http urban-game-theory-consensus-builder 'https://urbangametheory.xyz/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.
Does Urban Game Theory — Consensus Builder need an API key?
Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.
Is Urban Game Theory — Consensus Builder open source?
Yes. Its code is on GitHub under the MIT license.
Who maintains Urban Game Theory — Consensus Builder?
It is published by Poglavar. AI.tn lists it but does not maintain or endorse it.
From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.