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Local-first AI PKM memory for coding conversations.
ChatCrystal is an MCP server entry in ChatHome Skills, sourced from Official MCP Registry and scored 76/100. 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 ChatCrystal to a production agent workflow; the snapshot facts below are point-in-time values from the most recent ingest.
npx -y chatcrystal@0.6.2Review the upstream source before running this command.
{
"_meta": {
"io.modelcontextprotocol.registry/official": {
"status": "active",
"isLatest": true,
"updatedAt": "2026-10-23T09:14:25.346507Z",
"publishedAt": "2026-10-23T09:14:25.346507Z",
"statusChangedAt": "2026-10-23T09:14:25.346507Z"
}
},
"server": {
"name": "io.github.ZengLiangYi/chatcrystal",
"title": "ChatCrystal",
"$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
"version": "0.6.2",
"packages": [
{
"version": "0.6.2",
"transport": {
"type": "stdio"
},
"identifier": "chatcrystal",
"runtimeHint": "npx",
"registryType": "npm",
"packageArguments": [
{
"type": "positional",
"value": "mcp"
}
],
"runtimeArguments": [
{
"type": "positional",
"value": "-y"
}
],
"environmentVariables": [
{
"name": "CHATCRYSTAL_BASE_URL",
"description": "Optional ChatCrystal Core URL. Leave empty to use the local default at http://localhost:3721.",
"placeholder": "https://chatcrystal.example.com"
},
{
"name": "CHATCRYSTAL_API_TOKEN",
"isSecret": true,
"description": "Optional token for a protected ChatCrystal Cloud or remote instance."
}
]
}
],
"repository": {
"id": "1193284630",
"url": "https://github.com/ZengLiangYi/ChatCrystal",
"source": "github",
"subfolder": "server"
},
"websiteUrl": "https://zengliangyi.github.io/ChatCrystal/",
"description": "Local-first AI PKM memory for coding conversations."
}
}