Koskamo

Arcaeon MCP

Arcaeon is a tool for creating tamper-evident records of AI agent actions. The MCP server enables agents to stamp files, verify receipts, and maintain a chained log that visibly breaks if edited, providing a way for anyone to check the integrity of the agent's history.

Visit Arcaeon

Package and access

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

Arcaeon MCP logo, by ArcaeonVendor evidenceLocal stdioSource reviewed; not executedOperated by Arcaeon
You need:pip install arcaeon
Vendor documentation

Checks and signals

Each line is separate evidence, not a trust score.

  • Passed Official MCP Registry namespace is tied to arcaeon.io ·
  • Popularity 1 GitHub star

What you can do with it

  • Stamp a file to record its SHA-256 fingerprint
  • Verify a receipt to check for edits
  • Maintain a tamper-evident chain of agent actions
  • Check if a log has been altered

Source and maintenance

Vendor evidenceRegistry 0.9.0MIT
mcp-registry: io.arcaeon/arcaeon@0.9.0Source repositoryProject website
Last repository push
Maintenance checked

Packages and installation

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

arcaeon 0.9.0

pypiuvx
arcaeon package definition
{
  "version": "0.9.0",
  "transport": "stdio",
  "identifier": "arcaeon",
  "runtimeHint": "uvx",
  "registryType": "pypi",
  "registryBaseUrl": "https://pypi.org",
  "packageArguments": [
    {
      "type": "positional",
      "value": "mcp",
      "description": "The verb that starts the MCP server on stdio."
    }
  ],
  "runtimeArguments": [
    {
      "name": "--with",
      "type": "named",
      "value": "mcp>=2.0.0,<3",
      "description": "The MCP server needs the MCP Python SDK (the package's [mcp] extra); the base install has no dependencies."
    }
  ],
  "environmentVariables": [
    {
      "name": "ARCAEON_KEY",
      "format": "string",
      "description": "Witness API key for the two paid tools (witness_pin, witness_renew). Free tools work without it."
    }
  ]
}

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": {
    "arcaeon-mcp": {
      "command": "uvx",
      "args": [
        "arcaeon==0.9.0",
        "mcp"
      ],
      "env": {
        "ARCAEON_KEY": "<YOUR_ARCAEON_KEY>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "arcaeon-mcp": {
      "command": "uvx",
      "args": [
        "arcaeon==0.9.0",
        "mcp"
      ],
      "env": {
        "ARCAEON_KEY": "<YOUR_ARCAEON_KEY>"
      }
    }
  }
}

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": {
    "arcaeon-mcp": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "arcaeon==0.9.0",
        "mcp"
      ],
      "env": {
        "ARCAEON_KEY": "<YOUR_ARCAEON_KEY>"
      }
    }
  }
}

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": {
    "arcaeon-mcp": {
      "command": "uvx",
      "args": [
        "arcaeon==0.9.0",
        "mcp"
      ],
      "env": {
        "ARCAEON_KEY": "<YOUR_ARCAEON_KEY>"
      }
    }
  }
}

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