Koskamo

Callosium MCP

Callosium provides a local-first shared memory layer for AI assistants, storing knowledge in plain Markdown files on the user's machine. It enables multiple AIs like Claude and ChatGPT to read and write to a shared folder, ensuring offline recall, scoped access, and zero hallucination by citing sources.

Visit Callosium

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

Callosium MCP logo, by CallosiumCommunity listingLocal stdioSource reviewed; not executedPublished by Callosium
Vendor documentation

Checks and signals

Each line is separate evidence, not a trust score.

  • Popularity 11 GitHub stars

What you can do with it

  • Connect multiple AI assistants to a shared memory folder
  • Recall knowledge from plain Markdown files offline
  • Ensure AI answers are cited from user-owned notes
  • Manage per-agent folder-scoped access permissions

Source and maintenance

Community listingRegistry 0.1.18Apache-2.0
mcp-registry: io.github.callosium/callosium@0.1.18Source repositoryProject website
Last repository push
Latest release
desktop-v0.1.17
Maintenance checked

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

callosium 0.1.18

npm
callosium package definition
{
  "version": "0.1.18",
  "transport": "stdio",
  "identifier": "callosium",
  "registryType": "npm",
  "packageArguments": [
    {
      "type": "positional",
      "value": "mcp",
      "description": "Serve the brain over MCP on stdio."
    },
    {
      "name": "--brain",
      "type": "named",
      "format": "filepath",
      "isRequired": true,
      "description": "Path to your brain folder. Run 'callosium' first: the dashboard creates or adopts it."
    },
    {
      "name": "--agent",
      "type": "named",
      "isRequired": true,
      "description": "Agent id for this AI client, issued by the dashboard's Agents screen."
    },
    {
      "name": "--token",
      "type": "named",
      "isRequired": true,
      "description": "Token for this agent, issued alongside the id. Scopes which folders this AI may read."
    }
  ],
  "environmentVariables": [
    {
      "name": "CALLOSIUM_MODEL_DIR",
      "format": "filepath",
      "description": "Optional. Where the local embedding model is cached. Defaults to a per-user cache directory."
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · repository · passed · metadata changed · updated
  • · backfill · recorded · Pre-expansion baseline; unobserved rich metadata remains unknown

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.
Cursor configuration
{
  "mcpServers": {
    "callosium-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "callosium@0.1.18",
        "mcp"
      ],
      "env": {
        "CALLOSIUM_MODEL_DIR": "<YOUR_CALLOSIUM_MODEL_DIR>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "callosium-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "callosium@0.1.18",
        "mcp"
      ],
      "env": {
        "CALLOSIUM_MODEL_DIR": "<YOUR_CALLOSIUM_MODEL_DIR>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.
VS Code configuration
{
  "servers": {
    "callosium-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "callosium@0.1.18",
        "mcp"
      ],
      "env": {
        "CALLOSIUM_MODEL_DIR": "<YOUR_CALLOSIUM_MODEL_DIR>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.
Claude Desktop configuration
{
  "mcpServers": {
    "callosium-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "callosium@0.1.18",
        "mcp"
      ],
      "env": {
        "CALLOSIUM_MODEL_DIR": "<YOUR_CALLOSIUM_MODEL_DIR>"
      }
    }
  }
}

Let your agent find its tools

Find servers like Callosium MCP from your agent. Add Koskamo once to search the index for endpoints, access requirements, and client setup. Public discovery needs no key.

Connect Koskamo Explore workflows
See all 4,469