Sovereign MCP Gateway

A gating proxy for Model Context Protocol servers that connects to upstream servers, merges their tool catalogues into one, and puts every call through a verification chain before it reaches the server. It provides policy enforcement, verification, and a single audit trail across all upstreams, protecting servers that cannot be modified by acting as a central point for security checks.

Package and access

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

Community listingLocal stdioSource reviewed; not executedPublished by mattijsmoens

You need:pip install sovereign-mcp-gateway

Vendor documentation

What you can do with it

Merge tool catalogues from multiple MCP servers
Enforce policy and verification on agent calls
Maintain a hash-chained audit trail across upstreams
Protect unmodifiable MCP servers from prompt injection

Source and maintenance

Community listingRegistry 0.3.0

mcp-registry: io.github.mattijsmoens/sovereign-mcp-gateway@0.3.0 Source repository Project website

Maintenance checked: Nov 1, 2026, 6:05 AM UTC

Packages and installation

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

sovereign-mcp-gateway 0.3.0

pypi

sovereign-mcp-gateway package definition

{
  "version": "0.3.0",
  "transport": "stdio",
  "identifier": "sovereign-mcp-gateway",
  "registryType": "pypi",
  "registryBaseUrl": "https://pypi.org",
  "packageArguments": [
    {
      "name": "--config",
      "type": "named",
      "value": "{config_path}",
      "variables": {
        "config_path": {
          "format": "filepath",
          "isRequired": true,
          "description": "Path to your gateway.json"
        }
      },
      "isRequired": true,
      "description": "Path to the gateway configuration: which upstream MCP servers to proxy, the tool policy, and where to write the audit log. See the repository README for the format and an example."
    }
  ]
}

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": {
    "sovereign-mcp-gateway": {
      "command": "uvx",
      "args": [
        "sovereign-mcp-gateway==0.3.0",
        "--config={config_path}"
      ]
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.

Cline configuration

{
  "mcpServers": {
    "sovereign-mcp-gateway": {
      "command": "uvx",
      "args": [
        "sovereign-mcp-gateway==0.3.0",
        "--config={config_path}"
      ]
    }
  }
}

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": {
    "sovereign-mcp-gateway": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "sovereign-mcp-gateway==0.3.0",
        "--config={config_path}"
      ]
    }
  }
}

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": {
    "sovereign-mcp-gateway": {
      "command": "uvx",
      "args": [
        "sovereign-mcp-gateway==0.3.0",
        "--config={config_path}"
      ]
    }
  }
}

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