Koskamo

Vouch MCP

A standalone Model Context Protocol server that enables AI agents to create identities, sign and verify W3C Verifiable Credentials, scan for leaked keys, and decode DIDs. It provides cryptographic authorization for agent actions, keeping signing keys out of the model's context to prevent prompt injection attacks.

Package and access

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

Vouch MCP logo, by vouch-protocolCommunity listingLocal stdioSource reviewed; not executedPublished by vouch-protocol
Vendor documentation

What you can do with it

  • Create agent identities and sign verifiable credentials
  • Verify credentials to cryptographically authorize agent actions
  • Scan codebases for leaked Vouch key material
  • Decode DIDs for agent identity verification

Source and maintenance

Community listingRegistry 2.0.1
mcp-registry: io.github.vouch-protocol/vouch-mcp@2.0.1Source repository
Maintenance checked

Packages and installation

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

vouch-mcp 2.0.1

pypi
vouch-mcp package definition
{
  "version": "2.0.1",
  "transport": "stdio",
  "identifier": "vouch-mcp",
  "registryType": "pypi",
  "environmentVariables": [
    {
      "name": "VOUCH_PRIVATE_KEY",
      "isRequired": true,
      "description": "The agent's signing key as a JWK JSON string, held only in this server process."
    },
    {
      "name": "VOUCH_DID",
      "isRequired": true,
      "description": "The agent's DID, e.g. did:web:agent.example.com"
    },
    {
      "name": "VOUCH_MCP_TRANSPORT",
      "description": "Transport to serve: 'stdio' (default), 'http' (Streamable HTTP), or 'sse'."
    },
    {
      "name": "VOUCH_MCP_HOST",
      "description": "Bind host when VOUCH_MCP_TRANSPORT=http (default 127.0.0.1)."
    },
    {
      "name": "VOUCH_MCP_PORT",
      "description": "Bind port when VOUCH_MCP_TRANSPORT=http (default 8080)."
    }
  ]
}

Tools

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

No tool definitions available.

Connect from your client

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

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Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.
Cursor configuration
{
  "mcpServers": {
    "vouch-mcp": {
      "command": "uvx",
      "args": [
        "vouch-mcp==2.0.1"
      ],
      "env": {
        "VOUCH_PRIVATE_KEY": "<YOUR_VOUCH_PRIVATE_KEY>",
        "VOUCH_DID": "<YOUR_VOUCH_DID>",
        "VOUCH_MCP_TRANSPORT": "<YOUR_VOUCH_MCP_TRANSPORT>",
        "VOUCH_MCP_HOST": "<YOUR_VOUCH_MCP_HOST>",
        "VOUCH_MCP_PORT": "<YOUR_VOUCH_MCP_PORT>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "vouch-mcp": {
      "command": "uvx",
      "args": [
        "vouch-mcp==2.0.1"
      ],
      "env": {
        "VOUCH_PRIVATE_KEY": "<YOUR_VOUCH_PRIVATE_KEY>",
        "VOUCH_DID": "<YOUR_VOUCH_DID>",
        "VOUCH_MCP_TRANSPORT": "<YOUR_VOUCH_MCP_TRANSPORT>",
        "VOUCH_MCP_HOST": "<YOUR_VOUCH_MCP_HOST>",
        "VOUCH_MCP_PORT": "<YOUR_VOUCH_MCP_PORT>"
      }
    }
  }
}

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": {
    "vouch-mcp": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "vouch-mcp==2.0.1"
      ],
      "env": {
        "VOUCH_PRIVATE_KEY": "<YOUR_VOUCH_PRIVATE_KEY>",
        "VOUCH_DID": "<YOUR_VOUCH_DID>",
        "VOUCH_MCP_TRANSPORT": "<YOUR_VOUCH_MCP_TRANSPORT>",
        "VOUCH_MCP_HOST": "<YOUR_VOUCH_MCP_HOST>",
        "VOUCH_MCP_PORT": "<YOUR_VOUCH_MCP_PORT>"
      }
    }
  }
}

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": {
    "vouch-mcp": {
      "command": "uvx",
      "args": [
        "vouch-mcp==2.0.1"
      ],
      "env": {
        "VOUCH_PRIVATE_KEY": "<YOUR_VOUCH_PRIVATE_KEY>",
        "VOUCH_DID": "<YOUR_VOUCH_DID>",
        "VOUCH_MCP_TRANSPORT": "<YOUR_VOUCH_MCP_TRANSPORT>",
        "VOUCH_MCP_HOST": "<YOUR_VOUCH_MCP_HOST>",
        "VOUCH_MCP_PORT": "<YOUR_VOUCH_MCP_PORT>"
      }
    }
  }
}

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