The Unity editor, running an agent.

An open-source bridge that wires Claude Code, Cursor, Gemini, and your own models into the Unity Editor — with 290 typed tools across 64 categories, an MCP server, and three skill agents your team actually owns.

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try it live

Real commands · pick a tab · copy

One command. Walks you through the rest.

# from anywhere — no Unity-side setup needed
npx @mosaicxr-ai/create-bridge

# the installer asks for your Unity project path,
# which MCP clients to wire up (Claude Code, Claude
# Desktop, Cursor, Gemini CLI, Codex), then writes the
# package + every client config in one pass.

// What ships in the box

Four pillars. One plugin.

Every feature is open source, every tool is typed, every action is reversible. Pick the layer that fits the day’s work.

// Agentic editor

Agents that drive the Unity Editor like you do.

290 typed tools across 64 categories — GameObjects, scenes, prefabs, animation, lighting, particles, navigation, terrain, post-processing — exposed as MCP tools any compliant AI client can call.

290 typed Unity tools across 64 categories
Streaming tool calls with editor feedback
Undo / redo across agent actions

See how it ships in tiers

// MCP server

Talk to Unity from any MCP client.

One server entry, five clients out of the box: Claude Code, Claude Desktop, Cursor, Gemini CLI, and OpenAI Codex. The installer writes the same config into each — your existing entries are merged, never overwritten.

Five clients configured in one install pass
Loopback-only HTTP, HMAC-SHA256 authenticated
Per-project ephemeral ports — run multiple Editors at once

See how it ships in tiers

// Research-paper depth

Original implementations of published CS, graphics, and AI papers.

About 90 of the tools are not wrappers over Unity APIs — they are the algorithms themselves, callable by AI. Bridson Poisson Disk (2007), Müller SPH fluid (2003), Stam Stable Fluids (1999), Orkin GOAP (F.E.A.R., 2003), Lorensen-Cline Marching Cubes (1987), Reynolds Boids (1987), Harabor-Grastien Jump Point Search (2011), Garland-Heckbert quadric decimation (1997).

~90 algorithms implemented from primary sources
Curated KB cites NIST physics + Unity PhysicallyBased data
Responses include citations — no hallucinated numbers

See how it ships in tiers

// Privacy + vendor-neutral

Apache 2.0. No telemetry. Your project never leaves your machine.

Loopback-only listener bound to 127.0.0.1, ephemeral ports per project, mode-0600 discovery files on Unix, telemetry off by default. Apache 2.0 with explicit patent grant — not a funnel for a paid product.

Apache 2.0 with patent grant, no CLA gymnastics
Bring your own model — Claude, GPT, Gemini, local
Air-gapped friendly: nothing phones home

See how it ships in tiers

// How it ships

Free for individuals. Calm for teams. Built for the Gulf.

The plugin is and always will be MIT-licensed. Team and Enterprise tiers add the operational layer you need to ship with confidence.

Open source

Free

Apache 2.0 · forever

The whole product. Every tool, every algorithm, every MCP client integration. No telemetry, no feature gates, no upsell.

All 290 tools across 64 categories
All five MCP clients configured by the installer
Three skill agents — /mosaic-guide, /mosaic-shader, /mosaic-scene
Bring your own model API key
Community support on GitHub

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Recommended

Team support

$30

per seat / month · billed yearly

For studios shipping production Unity work together. Same open-source product — paid lane is for SLA, eval dashboards, and direct help.

Everything in Open source — same code, same tools
Email support · 1 business day reply
Eval suites for prompt regressions
Shared cost + latency dashboards
Quarterly roadmap input call

Talk to us about Team

Enterprise

Custom

scoped to your environment

Air-gapped on-prem deployment, dedicated training, custom Unity API tools written for you, and a direct line to the team. For Gulf B2B and regulated industrial environments.

Everything in Team support
On-prem / air-gapped deployment
Custom Unity tools written to your spec
Dedicated training + onboarding
Founder-level reply on every issue

Enterprise inquiry

// Get started

Star it on GitHub. Or talk to us.

Both paths are first-class. Indie devs and small studios start with the open-source plugin; enterprise teams skip the trial and get a founder reply within a day.

Star on GitHub Enterprise inquiry