YouTube Transcript API

io.github.catalyst-labs-devPublished by GitHub account catalyst-labs-devv1.0.1Updated Oct 25, 2026

YouTube transcripts in bulk: 12/12 in our test, zero failures charged; human vs auto flagged.

The publisher's own server: Transcript

VerifiedStreamable HTTPWeb executableWeb Search & Scraping

Overview

AI-generated overview

Remote Apify-hosted MCP server that lets an assistant fetch YouTube video transcripts in bulk, flagging human-made versus auto-generated captions.

What you can do
Retrieve transcripts for YouTube videos in bulk through an Apify-hosted remote endpoint, with the provider reporting 12 of 12 successful in its own test and no charge for failed runs. Distinguish human-written captions from auto-generated ones so results can be filtered or judged by quality. No individual tools are listed in the manifest, so exact operations are not documented here.
When to use it
Useful when you need caption text from one or many YouTube videos for summarization, search, or analysis, and want to know whether each transcript was human-made or machine-generated.
Requirements
A remote MCP endpoint at mcp.apify.com over streamable HTTP. Authentication is required: an Apify API token sent as a Bearer token in the Authorization header, or OAuth sign-in with Apify if the client supports it. An Apify account is implied.
Before you install
The Apify API token is a credential; keep it private and scope it appropriately. Runs are executed on Apify's platform, so video identifiers and requests go to that third party, and usage may consume Apify credits or incur charges. Transcript retrieval depends on captions being available for the requested videos.

Installation

In SourceWeft

  1. Open YouTube Transcript API in the dashboard and add it to a workspace.
  2. Connect the required credentials. They are stored privately and never shown on public pages.
  3. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/io.github.catalyst-labs-dev%2Fyoutube-transcript-api/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config. The client completes OAuth sign-in on first connect.

{
  "mcpServers": {
    "youtube-transcript-api": {
      "type": "http",
      "url": "https://mcp.apify.com/?tools=catalyst-labs/youtube-transcript-api"
    }
  }
}

README

This repository has no README.

Tools

0
This server asks you to sign in, so SourceWeft could not read its tools without an account and has not indexed them. What a connected account sees can depend on that account and its permissions.

Version history

2
  1. v1.0.1LatestOct 25, 2026
  2. v1.0.0Oct 19, 2026

Score

60% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listed15 pts

    Answer tools/list without a credential, or ship a package that starts in a sandbox without one.

  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • License10 pts

    Declare a license in the repository or the registry entry.

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TubeToTranscript

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Fetches YouTube captions for an AI assistant, returning transcripts with timestamps, title, channel and language, plus subtitle exports.

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