# @lexvibe/mcp

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[LexVibe](https://golexvibe.com?utm_source=mcp-readme) **MCP** server — one-step legal compliance for vibe-coded apps
(Lovable, Bolt, v0, Next.js, plain HTML). Wire it into your AI assistant
(Claude Code, Claude Desktop, Cursor…) and it makes your app "legally ready"
without you knowing the law: privacy policy, terms of service, cookie consent
banner with real script blocking, and an EU AI Act risk check.

Not using an AI coding tool? The same checks run in the browser: paste your URL
into the [free website checker](https://golexvibe.com/check?utm_source=mcp-readme) — no signup.

## Tools

| Tool                | What it does                                                                                                                                                           |
| ------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `make_compliant`    | One step: scan → generate docs into `/legal` → install the banner snippet → classify EU AI Act risk.                                                                   |
| `check_compliance`  | Read-only readiness report: what was detected, what could be auto-derived, and which human facts are still missing. Run it again after adding any SDK to catch drift.  |
| `scan_project`      | Detect analytics, payments, generative AI, email collection, third parties and platforms (web / iOS / Android).                                                        |
| `check_website`     | Free, no-signup compliance check of a **deployed** site by URL: per-vendor signals, recommendations and EU AI Act applicability (the same public checker as `/check`). |
| `verify_snippet`    | Fetch a deployed URL and confirm the cookie-banner snippet is actually live in the served HTML (`ok` / `missing` / `unknown`).                                         |
| `generate_policies` | Generate privacy policy / terms / AI disclosure, localized and tailored per market.                                                                                    |
| `install_snippet`   | Insert the cookie-banner snippet before `</head>`; for JSX layouts it returns exact instructions instead.                                                              |
| `check_ai_act`      | Classify EU AI Act risk and list the applicable obligations with deadlines.                                                                                            |
| `claim_app`         | Create a REAL app in the user's LexVibe account: returns a link the user opens to sign in and confirm (valid 7 days).                                                  |
| `get_claim_status`  | Poll a claim created with `claim_app`; once confirmed it returns the real app id, install snippet and policy URL.                                                      |

## Typical use (natural language)

> "Make my app legally compliant for the EU and the US."

One `make_compliant` call: the agent scans the project, writes the localized
policies to `/legal`, installs the cookie-banner snippet in your HTML head and
returns the EU AI Act classification plus next steps. You just review and
approve.

Draft-first flow: start with `check_compliance` — it reports what the scan
could figure out on its own and returns an `agentPrompt` your coding agent can
answer by reading the repo (company entity, contact email, target markets), so
there are no forms to fill.

No app id yet? The agent calls `claim_app` and hands you a link: open it, sign
in and confirm — that creates the real app in **your** LexVibe account (hosted,
auto-updated policies and consent proof linked to you). The agent then picks up
the real app id via `get_claim_status` and replaces any `YOUR_APP_ID`
placeholder automatically.

## Keep your policies in sync with your code

Legal documents describe your app as it was when they were generated. Every
SDK you add afterwards — payments, analytics, auth, AI — is a processing
activity your documents don't cover yet. LexVibe calls this **drift**, and the
MCP server is the sensor that lives inside your AI dev loop: the same
assistant that adds the SDK can catch the compliance gap before you deploy.

Paste this standing rule into your assistant's project rules — `AGENTS.md`
(Codex, Gemini CLI and most agents), `CLAUDE.md`, `.cursorrules`,
`.windsurfrules`…:

> After adding any SDK, analytics, payments, auth or AI integration to this
> project, run LexVibe's `check_compliance` tool and follow its
> recommendation.

When `check_compliance` reports processing activities that were added after
your documents were generated, re-run `generate_policies` (or
`make_compliant`) so the documents disclose the new processing. The same
applies to the deployed site: `check_website` detects the trackers that
actually ship to visitors, so you can catch drift the local scan can't see
(scripts injected by a CMS, a tag manager, a no-code platform…). Claimed apps
are also watched by LexVibe's other drift sensors (periodic site rechecks and
the GitHub integration), and the remote `check_website` tool additionally
returns a `drift` section for claimed apps comparing the live site against
the baseline the documents were generated from.

## Agent skill

[`skills/lexvibe-compliance/SKILL.md`](skills/lexvibe-compliance/SKILL.md) is
an [Agent Skill](https://agentskills.io) that tells your coding agent _when_ to
use this server (before a deploy, after adding an SDK) and how to report the
result honestly. Drop the folder into your agent's skills directory — e.g.
`.claude/skills/` in Claude Code — next to the MCP server below.

## Quickstart

```bash
npx -y @lexvibe/mcp   # or build from source: npm run build -w packages/mcp
```

### Claude Code (`.mcp.json` in your project, or `claude mcp add`)

```json
{
  "mcpServers": {
    "lexvibe": {
      "command": "npx",
      "args": ["-y", "@lexvibe/mcp"],
      "env": {
        "LEXVIBE_APP_ID": "your-app-id"
      }
    }
  }
}
```

### Cursor (`~/.cursor/mcp.json`)

```json
{
  "mcpServers": {
    "lexvibe": {
      "command": "npx",
      "args": ["-y", "@lexvibe/mcp"],
      "env": {
        "LEXVIBE_APP_ID": "your-app-id"
      }
    }
  }
}
```

Claude Desktop uses the same `mcpServers` structure in
`claude_desktop_config.json`.

### Codex CLI (`~/.codex/config.toml`)

Codex is the one client that does **not** use the `mcpServers` JSON above — its
config is TOML:

```bash
codex mcp add lexvibe -- npx -y @lexvibe/mcp
```

Or by hand:

```toml
[mcp_servers.lexvibe]
command = "npx"
args = ["-y", "@lexvibe/mcp"]
env = { LEXVIBE_APP_ID = "YOUR_APP_ID" }
```

Project-scoped config lives in `.codex/config.toml` (trusted projects only).

### Gemini CLI (`~/.gemini/settings.json`)

Same `mcpServers` shape as Cursor. For the **remote** server use `httpUrl`, not
`url`: in Gemini CLI `url` means SSE, and this endpoint speaks Streamable HTTP
only, so `url` fails without saying why.

```json
{
  "mcpServers": {
    "lexvibe": { "httpUrl": "https://golexvibe.com/api/mcp" }
  }
}
```

## Remote MCP (no install)

Browser-based agents that cannot run local processes — claude.ai / Claude
Desktop connectors, ChatGPT connectors — can use the hosted remote server
instead (Streamable HTTP, no auth):

```
https://golexvibe.com/api/mcp
```

The remote server has no filesystem access, so it exposes the remote-safe
subset: `check_website`, `check_store`, `generate_policies` (template-based
drafts, capped for anonymous callers), `check_ai_act`, `get_install_snippet`,
plus `claim_app` / `get_claim_status` to create a real app in the user's
account. Stdio-only clients can bridge to it with
`npx -y mcp-remote https://golexvibe.com/api/mcp`.

### Which integration to use, per platform

| Platform                              | Integration       | How                                                     |
| ------------------------------------- | ----------------- | ------------------------------------------------------- |
| Claude Code                           | stdio (or remote) | `claude mcp add lexvibe -- npx -y @lexvibe/mcp`         |
| Cursor / Windsurf / Cline / VS Code   | stdio             | `mcpServers` config with `npx -y @lexvibe/mcp`          |
| Codex CLI                             | stdio (or remote) | `codex mcp add lexvibe -- npx -y @lexvibe/mcp`          |
| Gemini CLI                            | stdio (or remote) | `mcpServers` in `~/.gemini/settings.json`               |
| Zed                                   | stdio (or remote) | `context_servers` in `settings.json`                    |
| Claude Desktop / claude.ai            | remote            | Settings → Connectors → `https://golexvibe.com/api/mcp` |
| ChatGPT                               | remote            | Settings → Connectors → `https://golexvibe.com/api/mcp` |
| Lovable / Bolt / v0 / Base44 / Replit | prompt (no MCP)   | Paste the one-liner from <https://golexvibe.com/prompt> |

Full per-platform setup guide: <https://golexvibe.com/docs/integrations>

## Configuration

| Variable             | Default                 | Purpose                                                            |
| -------------------- | ----------------------- | ------------------------------------------------------------------ |
| `LEXVIBE_APP_ID`     | `YOUR_APP_ID`           | Your LexVibe app id (links the snippet to your hosted policies)    |
| `LEXVIBE_API_URL`    | `https://golexvibe.com` | LexVibe instance that generates documents and classifies AI risk   |
| `LEXVIBE_CDN_URL`    | `https://golexvibe.com` | Host the widget script is served from (self-hosting only)          |
| `LEXVIBE_EVENTS_URL` | LexVibe events endpoint | Override where anonymous tool-usage events are sent (self-hosting) |
| `LEXVIBE_TELEMETRY`  | `1`                     | Set to `0` / `false` / `off` to disable usage telemetry            |

## Usage analytics

Each tool call sends one anonymous `mcp_tool_call` event to LexVibe so your MCP
usage shows up alongside your website in the Platform analytics dashboard
(same event the hosted remote server already records, tagged
`source: "mcp_stdio"` so the two channels are distinguishable).

- **Anonymous.** The event carries only the tool name, the package version and —
  only when `LEXVIBE_APP_ID` is a real app id (a valid UUID) — that app id, so
  the events map to your app. Placeholders like `your-app-id` are ignored. Never
  your file paths, file contents, app name, emails or generated documents.
- **Non-blocking.** It's fire-and-forget with a 3s timeout: it never delays,
  breaks or fails a tool call, even offline.
- **Opt-out.** Set `LEXVIBE_TELEMETRY=0` (or the de-facto `DO_NOT_TRACK=1`) to
  turn it off completely.

> Side effects: `scan_project`, `check_compliance`, `check_website`,
> `verify_snippet`, `check_ai_act` and `get_claim_status` are read-only
> (`check_website`, the AI Act check and the claim poll call the LexVibe API;
> `verify_snippet` fetches the URL you pass it — public http(s) hosts only,
> with the same anti-SSRF validation the platform uses). `generate_policies` calls the API and returns Markdown.
> `install_snippet` edits one file on your local filesystem (only when it
> contains `</head>`). `make_compliant` does both: it calls the API **and**
> writes files (`/legal/*.md` plus the snippet in your HTML head).
> `claim_app` creates a pending claim in LexVibe; the app itself is only
> created when the user confirms the link while signed in.

## Learn more

- [LexVibe](https://golexvibe.com?utm_source=mcp-readme) — hosted legal documents and a cookie banner with real script blocking, for web and mobile apps.
- [Free website checker](https://golexvibe.com/check?utm_source=mcp-readme) — paste a URL and see which documents and consent your site needs. No signup.
- [Compliance guides](https://golexvibe.com/guides?utm_source=mcp-readme) — each privacy law applied to the kind of product you built (SaaS, marketplace, mobile app, AI tool). Also [in Spanish](https://golexvibe.com/es/guides?utm_source=mcp-readme).
- [Privacy and AI law reference](https://golexvibe.com/law?utm_source=mcp-readme) — every framework with its effective date, the rights it grants and its primary sources, also available as an [open dataset](https://golexvibe.com/api/dataset) (CC BY 4.0).
- [Integration guides](https://golexvibe.com/docs/integrations?utm_source=mcp-readme) — setup for Claude, Cursor, Codex, Gemini CLI, ChatGPT, Lovable, Bolt, v0 and more.