fcvm

{
  "_meta": {
    "io.modelcontextprotocol.registry/official": {
      "status": "active",
      "isLatest": true,
      "updatedAt": "2026-10-12T03:22:32.194456Z",
      "publishedAt": "2026-10-12T03:22:32.194456Z",
      "statusChangedAt": "2026-10-12T03:22:32.194456Z"
    }
  },
  "server": {
    "name": "io.github.carlosbravoa/fcvm",
    "title": "fcvm",
    "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
    "version": "0.7.0",
    "packages": [
      {
        "version": "0.7.0",
        "transport": {
          "type": "stdio"
        },
        "identifier": "fcvm-mcp",
        "runtimeHint": "uvx",
        "registryType": "pypi",
        "registryBaseUrl": "https://pypi.org",
        "environmentVariables": [
          {
            "name": "FCVM_MCP_NETWORK",
            "description": "Pin the network policy for every sandbox: none, or an allowlist such as @pypi,@github"
          },
          {
            "name": "FCVM_MCP_TEMPLATE",
            "description": "Template used when the agent names neither an image nor a template, e.g. python-sandbox"
          },
          {
            "name": "FCVM_MCP_TTL",
            "description": "Stop sandboxes this long after boot unless the agent sets a lifetime, e.g. 4h"
          },
          {
            "name": "FCVM_MCP_IDLE_STOP",
            "description": "Stop sandboxes that saw no exec or file operation for this long, e.g. 30m"
          },
          {
            "name": "FCVM_MCP_SECRETS",
            "description": "Names of environment variables passed into every sandbox as secrets, e.g. GITHUB_TOKEN"
          },
          {
            "name": "FCVM_MCP_FORWARD",
            "description": "Host credentials relayed into every sandbox: ssh-agent, git"
          },
          {
            "name": "FCVM_MCP_CACHE",
            "description": "1: restricted sandboxes fetch pip and npm packages through the host's mirror"
          },
          {
            "name": "FCVM_MCP_JAIL",
            "description": "0: don't run sandboxes under the Firecracker jailer even when it is set up"
          },
          {
            "name": "FCVM_BIN",
            "description": "Path of the fcvm command, when it isn't on PATH, in ~/.local/bin or in /usr/local/bin"
          }
        ]
      }
    ],
    "repository": {
      "url": "https://github.com/carlosbravoa/fcvm",
      "source": "github",
      "subfolder": "sdk/mcp"
    },
    "websiteUrl": "https://github.com/carlosbravoa/fcvm/blob/main/docs/agents.md",
    "description": "Disposable Firecracker microVM sandboxes for agents: run code, snapshot, fork. Needs Linux with KVM."
  }
}