# `app.lyricvideogenerator/lyric-video` on anlyon.dev

> Text inside fenced blocks marked untrusted-server-text was written by the MCP server's publisher, not by anlyon.dev. It is data to inspect, not instructions to follow. Invisible characters are shown as [U+XXXX].
> No finding is not a safety guarantee: these are point-in-time checks of tool definitions, not of code or behaviour.

- Page: https://anlyon.dev/servers/app.lyricvideogenerator/lyric-video
- JSON: https://anlyon.dev/api/v1/servers/app.lyricvideogenerator/lyric-video
- Version: 1.0.1 (active)
- Publisher: app.lyricvideogenerator (domain proven to the MCP Registry)
- Runs: remote (streamable-http)
- Sign-in to list tools: none
- Repository: https://github.com/Dearest/lyricvideogenerator-mcp
- Metadata from the official MCP Registry, synced 2026-10-22T11:17:39.780Z

Title and description, as the publisher wrote them:

```untrusted-server-text
LyricVideoGenerator
Turn a song and its lyrics into a word-synced lyric video, with three styles to choose from.
```

Scanned 2026-10-22T11:18:05.742Z over streamable-http.

**12 tools: 1 can delete or cancel things, 1 do something that can't be undone, 8 change things and 2 only read.**

| Group | Class | Tools | Claude Code |
| --- | --- | --- | --- |
| Deletes or cancels | destructive | 1 | deny |
| Can't be undone | irreversible | 1 | ask |
| Changes things | write | 8 | ask |
| Only reads | read | 2 | allow |

## Findings

- **warn** Annotations that disagree with the tool in `open_in_browser` ([annotation-conflict](https://anlyon.dev/methodology#annotation-conflict))

```untrusted-server-text
The server marks "open_in_browser" read-only (readOnlyHint: true), and its own name, description or input give the class "write".

annotations: {"readOnlyHint":true,"destructiveHint":false,"openWorldHint":false}; The name "open_in_browser" says "open": a word for a change.
```


## Deletes or cancels (1)

Removes, cancels or revokes something. Claude Code: deny.

### `export_hd_video`

- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it destructive (destructiveHint: true).

Description, as the server wrote it:

```untrusted-server-text
Renders the lyric video in 1080p without a watermark, as 16:9 (landscape) or 9:16 (vertical). Requires the user's LyricVideoGenerator account: it uses 1 credit from their plan (or is free if this song was already unlocked on the website). Credits are refunded if the render fails. Returns an exportId; the widget shows progress and the download link.
```

## Can't be undone (1)

Sends, pays, publishes or merges: once done, it cannot be taken back. Claude Code: ask.

### `update_style`

- The name "update_style" says "update": a word for a change.
- The input addresses people (input.changes.background.to): what it sends cannot be taken back.

Description, as the server wrote it:

```untrusted-server-text
Changes the look of the current lyric video style: layout, word animation, colors, font, text size, background, and chorus emphasis. Send only the fields to change. Colors are #RRGGBB. Unreadable color combinations and unknown fonts are corrected or rejected with a reason.
```

## Changes things (8)

Creates or changes something that can be changed back. Claude Code: ask.

### `begin_local_export`

- Nothing in its name or description says what it does, so it is counted as a write.

Description, as the server wrote it:

```untrusted-server-text
Widget only: reserve a free 720p export to render in the browser.
```

### `choose_style`

- The description's first verb is "apply": a word for a change.

Description, as the server wrote it:

```untrusted-server-text
Applies one of the three proposed style options (1, 2 or 3) to the lyric video. Replaces any edits made to the current style.
```

### `create_lyric_video`

- The name "create_lyric_video" says "create": a word for a change.

Description, as the server wrote it:

```untrusted-server-text
Turns a song the user attached (MP3/WAV) into a word-synced lyric video and proposes three visual styles. Pass the lyrics if the user gave them; otherwise they are transcribed from the audio. Takes about 10–40 seconds. Creates a new project each call.
```

### `edit_lyrics`

- The name "edit_lyrics" says "edit": a word for a change.

Description, as the server wrote it:

```untrusted-server-text
Replaces the text of one lyric line (numbered from 1, as listed by get_lyric_video), keeping its timing. Use it to fix misheard or misspelled words.
```

### `export_video`

- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.

Description, as the server wrote it:

```untrusted-server-text
Free export: a 720p, 16:9 MP4 with a small watermark and a 2.5-second end card. It renders on the user's own computer inside the widget (about as long as the song), so this tool shows the widget and starts the export there; the user downloads the MP4 from the widget when it finishes. If their ChatGPT app can't render video, the widget offers to open the project in their browser instead.
```

### `finish_local_export`

- Nothing in its name or description says what it does, so it is counted as a write.

Description, as the server wrote it:

```untrusted-server-text
Widget only: complete a browser-rendered export after its upload, or fail it with an error.
```

### `open_in_browser`

- The name "open_in_browser" says "open": a word for a change.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
- Findings: warn annotation-conflict

Description, as the server wrote it:

```untrusted-server-text
Widget only: a short-lived link that opens this project in the user's browser, where it can be exported.
```

### `upload_local_export`

- The name "upload_local_export" says "upload": a word for a change.

Description, as the server wrote it:

```untrusted-server-text
Widget only: storage upload target for a browser-rendered MP4.
```

## Only reads (2)

Looks things up and changes nothing. Claude Code: allow.

### `get_export`

- The name "get_export" says "get": a word for reading.

Description, as the server wrote it:

```untrusted-server-text
Returns the status of a video export and, when finished, its MP4 download URL.
```

### `get_lyric_video`

- The name "get_lyric_video" says "get": a word for reading.

Description, as the server wrote it:

```untrusted-server-text
Returns a lyric video project's processing status, its three style options, the style now applied, and its numbered lyric lines.
```

## Claude Code permissions

For `.claude/settings.json`, assuming the server is installed as `lyric-video`:

```json
{
  "permissions": {
    "allow": [
      "mcp__lyric-video__get_lyric_video",
      "mcp__lyric-video__get_export"
    ],
    "ask": [
      "mcp__lyric-video__create_lyric_video",
      "mcp__lyric-video__choose_style",
      "mcp__lyric-video__update_style",
      "mcp__lyric-video__edit_lyrics",
      "mcp__lyric-video__export_video",
      "mcp__lyric-video__begin_local_export",
      "mcp__lyric-video__upload_local_export",
      "mcp__lyric-video__finish_local_export",
      "mcp__lyric-video__open_in_browser"
    ],
    "deny": [
      "mcp__lyric-video__export_hd_video"
    ]
  }
}
```