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Build 3D web apps: physics, audio, music, Blender import. Live edits, undo, versions, publishing.
R3 is an MCP server entry in ChatHome Skills, sourced from Official MCP Registry and scored 100/100. As a Model Context Protocol server, it exposes tools that MCP-compatible LLM clients such as Claude, Cursor, and Copilot can call directly, extending an agent's reach beyond its built-in capabilities. ChatHome Skills discovered this entry through its daily ingest of official registries and GitHub discovery queries, and re-verifies repository facts, freshness signals, and install metadata on every run. The quality score weighs official-registry presence, a working install command, license clarity, GitHub star trajectory, and repository freshness — the full formula is on the Sources page. The install command above is ready to copy. Review the last-pushed date and repository status before adding R3 to a production agent workflow; the snapshot facts below are point-in-time values from the most recent ingest.
mcp add org.r3js/r3 https://mcp.r3js.org/mcpReview the upstream source before running this command.
{
"_meta": {
"io.modelcontextprotocol.registry/official": {
"status": "active",
"isLatest": true,
"updatedAt": "2026-10-25T13:03:55.728023Z",
"publishedAt": "2026-10-25T13:03:55.728023Z",
"statusChangedAt": "2026-10-25T13:03:55.728023Z"
}
},
"server": {
"name": "org.r3js/r3",
"icons": [
{
"src": "https://r3js.org/android-chrome-192x192.png",
"sizes": [
"192x192"
],
"mimeType": "image/png"
},
{
"src": "https://r3js.org/android-chrome-512x512.png",
"sizes": [
"512x512"
],
"mimeType": "image/png"
}
],
"title": "R3",
"$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
"remotes": [
{
"url": "https://mcp.r3js.org/mcp",
"type": "streamable-http",
"headers": [
{
"name": "Authorization",
"isSecret": true,
"description": "Optional. Leave empty to sign in with R3 (OAuth). Or Bearer r3agent_… from r3js.org → Settings → AI & apps"
}
]
}
],
"version": "3.102.0",
"websiteUrl": "https://r3js.org",
"description": "Build 3D web apps: physics, audio, music, Blender import. Live edits, undo, versions, publishing."
}
}