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Vantio Gate

Official registry AI and agents

Vantio Gate — Policy Latch dry-run evaluate for agents. No live enforce from MCP.

Source code Website Documentation

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

NPM package @vantio/gate-mcp
Claude Code 
claude mcp add vantio-gate -e 'VANTIO_API_KEY=<your vantio_api_key>' -e 'VANTIO_API_BASE=<VANTIO_API_BASE>' -- npx -y @vantio/gate-mcp@0.1.0
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "vantio-gate": {
            "command": "npx",
            "args": [
                "-y",
                "@vantio/gate-mcp@0.1.0"
            ],
            "env": {
                "VANTIO_API_KEY": "<your vantio_api_key>",
                "VANTIO_API_BASE": "<VANTIO_API_BASE>"
            }
        }
    }
}

Environment variables

  • VANTIO_API_KEY secret Optional Pro API key for gate_get_policy / gate_residual_risk against your control plane
  • VANTIO_API_BASE Optional Pro API base URL (default https://api.vantio.ai)

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. Vantio
  2. Vantio Optics (Open Core)
  3. Phantom Engine installer
  4. Documentation
  5. License
  6. Security
  7. Contributing

Vantio

Linux security for AI.

This repository contains Vantio Optics, the Phantom Engine installer, and the Python SDK.

Vantio Optics (Open Core)

Free, local-first observability for AI egress. Optics is the free Observe tier. It records the destination, the process, the size, and the timing of a supported outbound call. Does not block actions or retain prompts or completions.

The Optics home is moving to github.com/vantioai/vantio-optics. Publishing still runs from this repository. The editor extension stays at extensions/vantio-optics. Commands and local install notes are in extensions/vantio-optics/README.md.

Install

These are the versions npm and PyPI served on 2026-10-21. Manifests in this git tree can be newer than the registry.

PackageRegistryVersion
@vantio/clinpm0.3.24
@vantio/agent-sdknpm0.2.4
vantio-agent-sdkPyPI3.1.1
@vantio/optics-mcpnpm0.1.2
@vantio/gate-mcpnpm0.1.0

@vantio/gate-mcp is a compatibility package for an older integration.

Optics CLI, on macOS, Linux, and Windows (WSL):

npm install -g @vantio/cli@0.3.24
vantio run node agent.js

vantio run injects the Node interceptor with NODE_OPTIONS --require for node, npx, tsx, and ts-node. On Node it covers fetch, undici, http/https, http2, net/tls, WebSocket, and spawned curl or wget.

Python SDK:

pip install vantio-agent-sdk==3.1.1

Wrap a Python callable with @shield. Prefixing vantio run python does not intercept by itself.

Node SDK:

npm install @vantio/agent-sdk@0.2.4

The Node SDK exposes shield(). Outbound Node coverage comes from vantio run.

Optics MCP:

npm install @vantio/optics-mcp@0.1.2

Free Optics needs no account and no API key.

Browser paths stay outside this wrap.

A process can miss the wrapper when it opens a socket the Node interceptor does not see, starts a subprocess outside vantio run, or uses a runtime other than Node without the Python SDK. Optics records the paths it wrapped.

vantio coverage prints the processes and connections recorded on this system, and which of those paths are on a local allowlist. vantio destinations flags the first time a recorded program connects to a destination that is not on that list. vantio export sends those events as OTLP/HTTP JSON, syslog or JSON lines, or a webhook. Optics does not stop the call.

Telemetry is disabled by default. Set VANTIO_TELEMETRY=1 to opt in. VANTIO_TELEMETRY_DISABLED=1 or DO_NOT_TRACK=1 override that opt-in.

Phantom Engine installer

Phantom Engine is enforcement and control for enrolled Linux systems. Contact Vantio. The product page is vantio.ai/phantom-engine.

The installer source is packages/vantio-install. vantio-install is not on npm or PyPI. Operator install uses the sealed wheel described in packages/vantio-install/docs/QUICKSTART.md. The commands are vantio-install and vantio-verify. That install does not replace @vantio/cli. The installer notes in that package target Ubuntu 24.04 LTS on x86_64.

Documentation

License

@vantio/cli, @vantio/agent-sdk, and vantio-agent-sdk declare MIT. License files for the CLI and the Python SDK are packages/vantio-cli/LICENSE and packages/vantio-agent-sdk-py/LICENSE. The Node SDK declares MIT in packages/vantio-agent-sdk/package.json. There is no root LICENSE file. The MIT grant covers the published packages named here.

Security

Report a suspected vulnerability to security@vantio.ai. The process is SECURITY.md.

Contributing

See CONTRIBUTING.md and CODE_OF_CONDUCT.md.

Frequently asked questions

What is Vantio Gate?

Vantio Gate — Policy Latch dry-run evaluate for agents. No live enforce from MCP.

How do I install Vantio Gate?

It runs on your machine. In Claude Code: claude mcp add vantio-gate -e 'VANTIO_API_KEY=<your vantio_api_key>' -e 'VANTIO_API_BASE=<VANTIO_API_BASE>' -- npx -y @vantio/gate-mcp@0.1.0. For other clients, paste the JSON configuration from this page into their MCP settings.

Does Vantio Gate need an API key?

Yes. It expects VANTIO_API_KEY, which you set in its configuration.

Is Vantio Gate open source?

Its code is public on GitHub, but the repository does not declare a standard license.

Who maintains Vantio Gate?

It is published by vantioai. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.