ChatCrystal
MCP server by github.com/zengliangyi/chatcrystal
Local-first AI PKM memory for coding conversations.
About ChatCrystal
ChatCrystal is an MCP (Model Context Protocol) server published by zengliangyi in the official MCP registry, listed under Knowledge & Memory on Loomal. Local-first AI PKM memory for coding conversations.
It ships as an npm package (chatcrystal), so any MCP client that can launch a local process can run it.
Development happens in the open at github.com/zengliangyi/chatcrystal, where the project has earned 31 GitHub stars.
Use ChatCrystal with your agent
claude mcp add chatcrystal -- npx -y chatcrystal{
"mcpServers": {
"chatcrystal": {
"command": "npx",
"args": [
"-y",
"chatcrystal"
]
}
}
}chatcrystalFrequently asked questions
- What is ChatCrystal?
- ChatCrystal is an MCP (Model Context Protocol) server by zengliangyi in the Knowledge & Memory category. Local-first AI PKM memory for coding conversations.
- How do I connect ChatCrystal to Claude, Cursor, or another MCP client?
- Install ChatCrystal from its npm package (chatcrystal) and register it under "mcpServers" in your client's MCP configuration — for example claude_desktop_config.json or Cursor's mcp.json — then restart the client.
- Is ChatCrystal open source?
- Yes — the source code is public at github.com/zengliangyi/chatcrystal, with 31 GitHub stars.
- Can AI agents pay to use ChatCrystal?
- Not yet through Loomal — ChatCrystal is listed as a free directory entry. If its maintainer verifies ownership, they can set per-call USDC pricing that agents pay over x402, with settlement on Base.
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Listing data from the official MCP registry and GitHub, refreshed periodically. Not affiliated with the maintainer unless claimed. Maintain ChatCrystal? Claim this listing free by verifying GitHub ownership, or contact us.