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io.github.leekung125/web-data-toolkit

by leekung125 · remote · no sign-in to list tools · v1.2.0 · published by GitHub user leekung125

YouTube transcripts (video, channel, search), Google Trends, Google Play and App Store reviews.

Changes · 4
CompareRegistry entry

5 tools: 4 change things and 1 only read.

Scanned Oct 21, 2026

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http web-data-toolkit https://web-data-toolkit.vercel.app/mcp --header 'x-api-key: <your-x-api-key>'

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

5 tools

Changes things 4Claude Code: ask
  • app_store_reviewsRating, title, text, author, app version and the review date for any iOS App Store app, plus the app's own metadata row (name, seller, price, average rating, rating count).No findings

    Why it is in this group

    • The name "app_store_reviews" says "store": a word for a change.
    Description, as the server wrote it
    Rating, title, text, author, app version and the review date for any iOS App Store app, plus the app's own metadata row (name, seller, price, average rating, rating count).
  • google_play_reviewsRating, text, author, thumbs-up count, app version and the developer's reply for any Google Play app.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    Description, as the server wrote it
    Rating, text, author, thumbs-up count, app version and the developer's reply for any Google Play app.
  • youtube_channel_transcriptsEnumerates the newest videos of a channel, @handle or playlist and returns each video's metadata and transcript in a single call.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    Description, as the server wrote it
    Enumerates the newest videos of a channel, @handle or playlist and returns each video's metadata and transcript in a single call. Pass "search: your query" instead of a channel to go straight from a question to transcripts without knowing which creator to ask - the top results come back with full transcripts. Useful for building a corpus on a topic or from one creator.
Only reads 1Claude Code: allow, ask for 1 outbound
  • youtube_transcriptReturns the transcript text for each video plus its language, whether the captions were auto-generated, word count, title and channel.Reads text others writeCan send data outNo findings

    Why it is in this group

    • The description's first verb is "return": a word for reading.

    What it can reach

    • untrusted-inputThe input takes a URL (input.url), and the tool reads it: it reads web pages, which anyone can write.
    • outboundThe input takes a URL (input.url): a request to a URL can carry data to whoever runs it.

    Claude Code: ask, because it is tagged outbound.

    Description, as the server wrote it
    Returns the transcript text for each video plus its language, whether the captions were auto-generated, word count, title and channel. Comma-separate up to 50 video URLs or ids. Videos with no captions come back with a status instead of text.

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Exfil surface

Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.

No private-data, untrusted-input, outbound path in this server alone: no tool is tagged private-data.

Reads private data0
Reads files, mail, messages, databases, secrets, calendars or repositories.
Reads text others write1
Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
Can send data out1
Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.

Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.

Install

Pinned to version 1.2.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http web-data-toolkit https://web-data-toolkit.vercel.app/mcp --header 'x-api-key: <your-x-api-key>'

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [],
    "ask": [
      "mcp__web-data-toolkit__youtube_transcript",
      "mcp__web-data-toolkit__youtube_channel_transcripts",
      "mcp__web-data-toolkit__google_trends",
      "mcp__web-data-toolkit__app_store_reviews",
      "mcp__web-data-toolkit__google_play_reviews"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as web-data-toolkit. Review it before you use it.

Capability tags behind 1 rule
  • mcp__web-data-toolkit__youtube_transcript untrusted-input, outbound