ChatCrystal
Rank #1,571io.github.ZengLiangYi/chatcrystal
Local-first AI PKM memory for coding conversations.
ChatCrystal is a Model Context Protocol (MCP) server published by zengliangyi. It ranks #1,571 of 132,046 servers tracked on MCP Toplist, and its repository has 58 GitHub stars. ChatCrystal is listed across 4 registries — Official MCP, Glama, PulseMCP and mcp.so, with 8 tracked versions. It was first listed on May 13, 2026 and most recently updated on Sep 20, 2026.
Ranks ahead of 130,475 of 132,046 servers on MCP Toplist.
Use ChatCrystal
No credentials or required configuration declared — add it to your MCP client and go.
claude mcp add chatcrystal -e "CHATCRYSTAL_BASE_URL=<your CHATCRYSTAL_BASE_URL>" -e "CHATCRYSTAL_API_TOKEN=<your CHATCRYSTAL_API_TOKEN>" -- npx -y chatcrystal mcpReplace each placeholder with your own value before saving.
[mcp_servers.chatcrystal]
command = "npx"
args = ["-y", "chatcrystal", "mcp"]
[mcp_servers.chatcrystal.env]
CHATCRYSTAL_BASE_URL = "<your CHATCRYSTAL_BASE_URL>"
CHATCRYSTAL_API_TOKEN = "<your CHATCRYSTAL_API_TOKEN>"Add to ~/.codex/config.toml. Replace each placeholder with your own value before saving.
{
"mcpServers": {
"chatcrystal": {
"command": "npx",
"args": [
"-y",
"chatcrystal",
"mcp"
],
"env": {
"CHATCRYSTAL_BASE_URL": "<your CHATCRYSTAL_BASE_URL>",
"CHATCRYSTAL_API_TOKEN": "<your CHATCRYSTAL_API_TOKEN>"
}
}
}
}Add to claude_desktop_config.json (Settings → Developer → Edit Config). Replace each placeholder with your own value before saving.
{
"mcpServers": {
"chatcrystal": {
"command": "npx",
"args": [
"-y",
"chatcrystal",
"mcp"
],
"env": {
"CHATCRYSTAL_BASE_URL": "<your CHATCRYSTAL_BASE_URL>",
"CHATCRYSTAL_API_TOKEN": "<your CHATCRYSTAL_API_TOKEN>"
}
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (per project). Replace each placeholder with your own value before saving.
{
"servers": {
"chatcrystal": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"chatcrystal",
"mcp"
],
"env": {
"CHATCRYSTAL_BASE_URL": "<your CHATCRYSTAL_BASE_URL>",
"CHATCRYSTAL_API_TOKEN": "<your CHATCRYSTAL_API_TOKEN>"
}
}
}
}Save as .vscode/mcp.json in your workspace. Replace each placeholder with your own value before saving.
{
"mcpServers": {
"chatcrystal": {
"command": "npx",
"args": [
"-y",
"chatcrystal",
"mcp"
],
"env": {
"CHATCRYSTAL_BASE_URL": "<your CHATCRYSTAL_BASE_URL>",
"CHATCRYSTAL_API_TOKEN": "<your CHATCRYSTAL_API_TOKEN>"
}
}
}
}Add to ~/.codeium/windsurf/mcp_config.json. Replace each placeholder with your own value before saving.
{
"mcpServers": {
"chatcrystal": {
"command": "npx",
"args": [
"-y",
"chatcrystal",
"mcp"
],
"env": {
"CHATCRYSTAL_BASE_URL": "<your CHATCRYSTAL_BASE_URL>",
"CHATCRYSTAL_API_TOKEN": "<your CHATCRYSTAL_API_TOKEN>"
}
}
}
}Replace each placeholder with your own value before saving.
Show your rank
Maintain this server? Add the live rank badge to your README — it updates automatically as the leaderboard changes.
[](https://mcptoplist.com/server/io.github.ZengLiangYi%2Fchatcrystal)<a href="https://mcptoplist.com/server/io.github.ZengLiangYi%2Fchatcrystal"><img src="https://mcptoplist.com/badge/io.github.ZengLiangYi%2Fchatcrystal.svg" alt="MCP Toplist: Top 5% of 132,046" /></a>Variants: append ?metric=score or ?metric=stars to the image URL.
Listed on 4 registries
zengliangyi
Available versions (8)
| Version | Published |
|---|---|
| 0.6.1 | Sep 20, 2026 |
| 0.6.0 | Sep 5, 2026 |
| 0.5.9 | Sep 3, 2026 |
| 0.5.7 | Jun 15, 2026 |
| 0.5.6 | Jun 15, 2026 |
| 0.5.5 | Jun 14, 2026 |
| 0.5.4 | Jun 13, 2026 |
| 0.5.3 | Jun 12, 2026 |
Frequently asked questions
- Who maintains ChatCrystal?
- ChatCrystal is maintained by zengliangyi, which publishes 1 MCP server (8 total versions) tracked on MCP Toplist.
- Is ChatCrystal listed on the Official MCP Registry?
- Yes — ChatCrystal is listed on the Official MCP Registry, alongside Glama, PulseMCP and mcp.so.
- How many versions does ChatCrystal have?
- MCP Toplist tracks 8 versions of ChatCrystal, most recently published on Sep 20, 2026.
- Where can I find the source code for ChatCrystal?
- The source code for ChatCrystal is hosted at github.com/zengliangyi/chatcrystal.
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