fcvm MCP

An MCP server that provides AI agents with tools to manage disposable Firecracker microVM sandboxes. It allows agents to create, snapshot, fork, and execute code within isolated VMs, supporting features like network policy pinning, port publishing, and state management via a stdio interface.

Package and access

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

Community listingLocal stdioSource reviewed; not executedPublished by carlosbravoa

Vendor documentation

What you can do with it

Create and boot isolated VM sandboxes for code execution
Snapshot and fork running VMs for parallel testing or rollback
Execute shell commands or background jobs within a sandbox
Publish TCP ports from a sandbox to the host for access

Source and maintenance

Community listingRegistry 0.7.0

mcp-registry: io.github.carlosbravoa/fcvm@0.7.0 Source repository Project website

Maintenance checked: Nov 1, 2026, 5:02 AM UTC

Packages and installation

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

fcvm-mcp 0.7.0

pypiuvx

fcvm-mcp package definition

{
  "version": "0.7.0",
  "transport": "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"
    }
  ]
}

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.

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": {
    "fcvm-mcp": {
      "command": "uvx",
      "args": [
        "fcvm-mcp==0.7.0"
      ],
      "env": {
        "FCVM_MCP_NETWORK": "<YOUR_FCVM_MCP_NETWORK>",
        "FCVM_MCP_TEMPLATE": "<YOUR_FCVM_MCP_TEMPLATE>",
        "FCVM_MCP_TTL": "<YOUR_FCVM_MCP_TTL>",
        "FCVM_MCP_IDLE_STOP": "<YOUR_FCVM_MCP_IDLE_STOP>",
        "FCVM_MCP_SECRETS": "<YOUR_FCVM_MCP_SECRETS>",
        "FCVM_MCP_FORWARD": "<YOUR_FCVM_MCP_FORWARD>",
        "FCVM_MCP_CACHE": "<YOUR_FCVM_MCP_CACHE>",
        "FCVM_MCP_JAIL": "<YOUR_FCVM_MCP_JAIL>",
        "FCVM_BIN": "<YOUR_FCVM_BIN>"
      }
    }
  }
}

Cline

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

Cline configuration

{
  "mcpServers": {
    "fcvm-mcp": {
      "command": "uvx",
      "args": [
        "fcvm-mcp==0.7.0"
      ],
      "env": {
        "FCVM_MCP_NETWORK": "<YOUR_FCVM_MCP_NETWORK>",
        "FCVM_MCP_TEMPLATE": "<YOUR_FCVM_MCP_TEMPLATE>",
        "FCVM_MCP_TTL": "<YOUR_FCVM_MCP_TTL>",
        "FCVM_MCP_IDLE_STOP": "<YOUR_FCVM_MCP_IDLE_STOP>",
        "FCVM_MCP_SECRETS": "<YOUR_FCVM_MCP_SECRETS>",
        "FCVM_MCP_FORWARD": "<YOUR_FCVM_MCP_FORWARD>",
        "FCVM_MCP_CACHE": "<YOUR_FCVM_MCP_CACHE>",
        "FCVM_MCP_JAIL": "<YOUR_FCVM_MCP_JAIL>",
        "FCVM_BIN": "<YOUR_FCVM_BIN>"
      }
    }
  }
}

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": {
    "fcvm-mcp": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "fcvm-mcp==0.7.0"
      ],
      "env": {
        "FCVM_MCP_NETWORK": "<YOUR_FCVM_MCP_NETWORK>",
        "FCVM_MCP_TEMPLATE": "<YOUR_FCVM_MCP_TEMPLATE>",
        "FCVM_MCP_TTL": "<YOUR_FCVM_MCP_TTL>",
        "FCVM_MCP_IDLE_STOP": "<YOUR_FCVM_MCP_IDLE_STOP>",
        "FCVM_MCP_SECRETS": "<YOUR_FCVM_MCP_SECRETS>",
        "FCVM_MCP_FORWARD": "<YOUR_FCVM_MCP_FORWARD>",
        "FCVM_MCP_CACHE": "<YOUR_FCVM_MCP_CACHE>",
        "FCVM_MCP_JAIL": "<YOUR_FCVM_MCP_JAIL>",
        "FCVM_BIN": "<YOUR_FCVM_BIN>"
      }
    }
  }
}

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": {
    "fcvm-mcp": {
      "command": "uvx",
      "args": [
        "fcvm-mcp==0.7.0"
      ],
      "env": {
        "FCVM_MCP_NETWORK": "<YOUR_FCVM_MCP_NETWORK>",
        "FCVM_MCP_TEMPLATE": "<YOUR_FCVM_MCP_TEMPLATE>",
        "FCVM_MCP_TTL": "<YOUR_FCVM_MCP_TTL>",
        "FCVM_MCP_IDLE_STOP": "<YOUR_FCVM_MCP_IDLE_STOP>",
        "FCVM_MCP_SECRETS": "<YOUR_FCVM_MCP_SECRETS>",
        "FCVM_MCP_FORWARD": "<YOUR_FCVM_MCP_FORWARD>",
        "FCVM_MCP_CACHE": "<YOUR_FCVM_MCP_CACHE>",
        "FCVM_MCP_JAIL": "<YOUR_FCVM_MCP_JAIL>",
        "FCVM_BIN": "<YOUR_FCVM_BIN>"
      }
    }
  }
}

Let your agent find its tools

Find servers like fcvm MCP from your agent. Add Koskamo once to search the index for endpoints, access requirements, and client setup. Public discovery needs no key.

Connect Koskamo Explore workflows

See all 7,187