{
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "name": "io.mcp-hangar/hangar",
  "title": "MCP Hangar",
  "description": "Policy enforcement plane for MCP: every tool call ends in a verdict. Self-hosted, MIT.",
  "websiteUrl": "https://mcp-hangar.io",
  "repository": {
    "url": "https://github.com/mcp-hangar/mcp-hangar",
    "source": "github"
  },
  "version": "2.21.0",
  "packages": [
    {
      "registryType": "pypi",
      "identifier": "mcp-hangar",
      "version": "2.21.0",
      "runtimeHint": "uvx",
      "transport": {
        "type": "stdio"
      },
      "environmentVariables": [
        {
          "name": "MCP_CONFIG",
          "description": "Path to config.yaml declaring the upstream MCP servers and policy. Without it Hangar starts on a demo config that serves no real upstream.",
          "format": "filepath",
          "isRequired": false
        }
      ]
    }
  ]
}