Search / io.github.carlosbravoa/fcvm
fcvm
L0· runs locallyDisposable Firecracker microVM sandboxes for agents: run code, snapshot, fork. Needs Linux with KVM.
v0.7.0 · active · repository · website · descriptor JSON · versions
Search / io.github.carlosbravoa/fcvm
L0· runs locallyDisposable Firecracker microVM sandboxes for agents: run code, snapshot, fork. Needs Linux with KVM.
v0.7.0 · active · repository · website · descriptor JSON · versions
{
"mcpServers": {
"fcvm": {
"command": "uvx",
"args": [
"fcvm-mcp==0.7.0"
]
}
}
}claude mcp add fcvm -- uvx fcvm-mcp==0.7.0[mcp_servers.fcvm]
command = "uvx"
args = ["fcvm-mcp==0.7.0"]
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"fcvm": {
"type": "local",
"command": [
"uvx",
"fcvm-mcp==0.7.0"
],
"enabled": true
}
}
}{
"mcpServers": {
"fcvm": {
"command": "uvx",
"args": [
"fcvm-mcp==0.7.0"
]
}
},
"deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=fcvm&config=eyJjb21tYW5kIjoidXZ4IiwiYXJncyI6WyJmY3ZtLW1jcD09MC43LjAiXX0%3D"
}{
"servers": {
"fcvm": {
"type": "stdio",
"command": "uvx",
"args": [
"fcvm-mcp==0.7.0"
]
}
}
}{
"mcpServers": {
"fcvm": {
"command": "uvx",
"args": [
"fcvm-mcp==0.7.0"
]
}
}
}extensions:
"fcvm":
enabled: true
name: "fcvm"
type: stdio
cmd: "uvx"
args:
- "fcvm-mcp==0.7.0"
timeout: 300
This is a local package: the command runs on your machine.
Not scored: fewer than three checks apply, usually because no remote answered a credential-free probe or the server is a local package.
protocol.modern, protocol.stateless, protocol.transport, protocol.list_ttlno remote answered a protocol handshake (not probed yet, unreachable, or local-only)auth.prm, auth.as_metadata, auth.cimdno remote uses OAuthauth.secret_in_urlno templated URLtools.descriptions, tools.description_length, tools.schemas, tools.annotations, tools.directory_hints, tools.token_cost, tools.api_dumptool list unknown (behind auth, not probed, or empty)stability.changes, stability.rug_pulltool list unknowndeps.known_vulnsno known advisory in 1 resolved packagesdeps.mcp_sdk_versionthe official MCP SDK is not in the dependency graphdeps.resolvable[email protected] resolved: 1 packagesNo tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.
Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.
+repository +namespace-matches-repo +website ~liveness-unmeasured +updated-8d-ago
Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.
[email protected] PyPI0 dependencies, resolved · advisories checked 2026-10-19
No known advisory affects this dependency graph.
Dependency graphs from deps.dev; advisories from OSV.dev, including the GitHub Advisory Database and the PyPI Advisory Database; all CC BY 4.0. The graph is what a clean install of this version resolves today; nothing was installed or run. How it is checked.
| package | registry | version | runtime | secrets |
|---|---|---|---|---|
fcvm-mcp | pypi | 0.7.0 | uvx |
No tools observed. Local packages are never executed by the registry.
Schemas: list_tools.
{
"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."
}