Callosium MCP Server
by callosiumio.github.callosium/callosiumv0.1.18
One shared memory for every AI you use, in plain Markdown files you own.
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Maintained41d ago
Install Callosium MCP server
Install in Claude Code
claude mcp add callosium -- npx -y callosium mcp --brain '<--brain>' --agent '<--agent>' --token '<--token>'Install in Cursor
{
"mcpServers": {
"callosium": {
"command": "npx",
"args": [
"-y",
"callosium",
"mcp",
"--brain",
"<--brain>",
"--agent",
"<--agent>",
"--token",
"<--token>"
]
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).
Install in Claude Desktop
{
"mcpServers": {
"callosium": {
"command": "npx",
"args": [
"-y",
"callosium",
"mcp",
"--brain",
"<--brain>",
"--agent",
"<--agent>",
"--token",
"<--token>"
]
}
}
}Settings → Developer → Edit Config (claude_desktop_config.json), then restart.
Install in VS Code
{
"servers": {
"callosium": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"callosium",
"mcp",
"--brain",
"<--brain>",
"--agent",
"<--agent>",
"--token",
"<--token>"
]
}
}
}Add to .vscode/mcp.json in your workspace.
Install in Windsurf
{
"mcpServers": {
"callosium": {
"command": "npx",
"args": [
"-y",
"callosium",
"mcp",
"--brain",
"<--brain>",
"--agent",
"<--agent>",
"--token",
"<--token>"
]
}
}
}Add to ~/.codeium/windsurf/mcp_config.json.
Configuration
| Variable | Required | Secret | Description |
|---|---|---|---|
| CALLOSIUM_MODEL_DIR | — | — | Optional. Where the local embedding model is cached. Defaults to a per-user cache directory. |
Freshness
Maintained — last maintenance signal 41d ago. The newest of the signals below sets the band.
Last commit (default branch)
2026-08-30 · 41d ago · GitHub
Latest release
2026-08-01 · 2mo ago · GitHub · desktop-v0.1.17
Package published
no data · npm/PyPI
Registry entry updated
2026-08-04 · 2mo ago · official registry · v0.1.18
FAQ
›How do I install the Callosium MCP server in Claude Code?
Run: claude mcp add callosium -- npx -y callosium mcp --brain '<--brain>' --agent '<--agent>' --token '<--token>'. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.
›Does Callosium require an API key?
No required environment variables are declared in its published metadata.
›Can I use Callosium as a remote (hosted) MCP server?
No hosted endpoint is published; it runs locally over stdio.
›Is Callosium in the official MCP registry?
Yes, as io.github.callosium/callosium.
Alternatives to Callosium
Other memory MCP servers.