Koskamo

Mark MCP

Mark is an open-source MCP server and CLI client for Agent Escrow, enabling non-custodial 2-of-3 Bitcoin escrow for AI agent-to-agent payments. It manages keys, funds, and signs deals over Lightning, supporting features like dispute resolution, reputation checks, and demo transactions.

Visit yuvlero

Package and access

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

Mark MCP logo, by yuvleroCommunity listingLocal stdioSource reviewed; not executedPublished by yuvlero
Vendor documentation

What you can do with it

  • Create non-custodial 2-of-3 Bitcoin escrow deals between AI agents
  • Fund escrows via Lightning Network and manage payouts
  • Check agent reputation and transaction history
  • Run demo deals to test escrow workflows

Source and maintenance

Community listingRegistry 0.2.3MIT
mcp-registry: io.github.yuvlero/mark@0.2.3Source repositoryProject website
Last repository push
Maintenance checked

Packages and installation

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

@yuvlero/mark 0.2.3

npmnpx
@yuvlero/mark package definition
{
  "version": "0.2.3",
  "transport": "stdio",
  "identifier": "@yuvlero/mark",
  "runtimeHint": "npx",
  "registryType": "npm",
  "registryBaseUrl": "https://registry.npmjs.org",
  "packageArguments": [
    {
      "type": "positional",
      "value": "mcp"
    }
  ],
  "environmentVariables": [
    {
      "name": "MARK_NETWORK",
      "default": "bitcoin",
      "description": "bitcoin (default, real money) or mutinynet (test)"
    },
    {
      "name": "MARK_ESCROW_URL",
      "description": "Escrow server URL. Default on bitcoin: https://agentescrow.to"
    },
    {
      "name": "MARK_HOME",
      "description": "Directory for the agent's key and config (default ~/.mark)"
    },
    {
      "name": "MARK_PASSWORD",
      "description": "Keystore password (else MARK_PASSWORD_FILE, else an auto-created 0600 file)"
    }
  ]
}

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": {
    "mark-mcp-yuvlero-mark": {
      "command": "npx",
      "args": [
        "-y",
        "@yuvlero/mark@0.2.3",
        "mcp"
      ],
      "env": {
        "MARK_NETWORK": "<YOUR_MARK_NETWORK>",
        "MARK_ESCROW_URL": "<YOUR_MARK_ESCROW_URL>",
        "MARK_HOME": "<YOUR_MARK_HOME>",
        "MARK_PASSWORD": "<YOUR_MARK_PASSWORD>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "mark-mcp-yuvlero-mark": {
      "command": "npx",
      "args": [
        "-y",
        "@yuvlero/mark@0.2.3",
        "mcp"
      ],
      "env": {
        "MARK_NETWORK": "<YOUR_MARK_NETWORK>",
        "MARK_ESCROW_URL": "<YOUR_MARK_ESCROW_URL>",
        "MARK_HOME": "<YOUR_MARK_HOME>",
        "MARK_PASSWORD": "<YOUR_MARK_PASSWORD>"
      }
    }
  }
}

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": {
    "mark-mcp-yuvlero-mark": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@yuvlero/mark@0.2.3",
        "mcp"
      ],
      "env": {
        "MARK_NETWORK": "<YOUR_MARK_NETWORK>",
        "MARK_ESCROW_URL": "<YOUR_MARK_ESCROW_URL>",
        "MARK_HOME": "<YOUR_MARK_HOME>",
        "MARK_PASSWORD": "<YOUR_MARK_PASSWORD>"
      }
    }
  }
}

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": {
    "mark-mcp-yuvlero-mark": {
      "command": "npx",
      "args": [
        "-y",
        "@yuvlero/mark@0.2.3",
        "mcp"
      ],
      "env": {
        "MARK_NETWORK": "<YOUR_MARK_NETWORK>",
        "MARK_ESCROW_URL": "<YOUR_MARK_ESCROW_URL>",
        "MARK_HOME": "<YOUR_MARK_HOME>",
        "MARK_PASSWORD": "<YOUR_MARK_PASSWORD>"
      }
    }
  }
}

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