YouTube Transcript Downloader
Clean YouTube transcripts for agents: single videos, channels, playlists, plus AI caption cleanup.
使うべきか
品質と安全性
ツール定義とプロトコルへの準拠に関する自動分析に基づいています。
コンテキストコスト
これは、サーバーのツールがモデルのコンテキストに読み込まれるたびに消費されるおおよそのトークン数です。数が多いほど、ほかのタスクに使える注意が減ります。
インストール
ワンクリックインストール
これを `claude_desktop_config.json` ファイルに追加してください:
{
"mcpServers": {
"transcripts": {
"url": "https://youtubetranscriptdownload.com/api/mcp"
}
}
}リモートエンドポイント
https://youtubetranscriptdownload.com/api/mcpstreamable-httpできること
ツール一覧
ツール（4）
🟢get_transcript(video)
Get the full transcript of a single YouTube video as timestamped markdown. Read-only: fetches existing captions, modifies nothing. Requires an API key; each successful call charges 1 credit, including repeat calls for the same video, so reuse a transcript already in context instead of re-fetching. Videos without captions return an error and cost nothing. Rate limit: 5 requests per 10 seconds.
入力スキーマ
{
"type": "object",
"properties": {
"video": {
"type": "string",
"description": "YouTube video ID (e.g. dQw4w9WgXcQ) or full video URL (youtube.com/watch?v=... or youtu.be/... forms)"
}
},
"required": [
"video"
],
"$schema": "http://json-schema.org/draft-07/schema#"
}出力スキーマ
{
"type": "object",
"properties": {
"videoId": {
"type": "string",
"description": "YouTube video ID"
},
"title": {
"type": "string",
"description": "Video title"
},
"transcript": {
"type": "string",
"description": "Full transcript as timestamped markdown"
},
"creditsUsed": {
"type": "number",
"description": "Credits charged for this call"
},
"creditsRemaining": {
"type": "number",
"description": "Account balance after this call"
}
},
"required": [
"videoId",
"title",
"transcript",
"creditsUsed",
"creditsRemaining"
],
"$schema": "http://json-schema.org/draft-07/schema#",
"additionalProperties": false
}🟢polish_transcript(video)
Get a cleaned-up transcript of a YouTube video's auto-generated captions: punctuation and capitalisation restored, filler and false starts removed, paragraphs added, misheard names fixed, faithful to what was said. Use when raw captions are too messy to read or quote; for a plain transcript use get_transcript. Read-only; requires an API key. Each call charges credits by transcript length (about 3 per 1,000 words, minimum 5), including repeat calls, so keep the result in context. Human-uploaded captions (already clean) and transcripts over ~7,000 words return an error without charging. Rate limit: 5 requests per 10 seconds.
入力スキーマ
{
"type": "object",
"properties": {
"video": {
"type": "string",
"description": "YouTube video ID (e.g. dQw4w9WgXcQ) or full video URL (youtube.com/watch?v=... or youtu.be/... forms)"
}
},
"required": [
"video"
],
"$schema": "http://json-schema.org/draft-07/schema#"
}出力スキーマ
{
"type": "object",
"properties": {
"videoId": {
"type": "string",
"description": "YouTube video ID"
},
"title": {
"type": "string",
"description": "Video title"
},
"transcript": {
"type": "string",
"description": "Cleaned transcript as timestamped markdown"
},
"creditsUsed": {
"type": "number",
"description": "Credits charged for this call (scales by length)"
},
"creditsRemaining": {
"type": "number",
"description": "Account balance after this call"
}
},
"required": [
"videoId",
"title",
"transcript",
"creditsUsed",
"creditsRemaining"
],
"$schema": "http://json-schema.org/draft-07/schema#",
"additionalProperties": false
}🟢get_channel_transcripts(url, limit)
Get transcripts for a YouTube channel's most recent videos (newest first) as timestamped markdown, one section per video. Use for research across a creator's recent output; for one known video use get_transcript. Read-only; requires an API key. Charges 1 credit per video that returns a transcript, including repeat calls; videos without captions are skipped free. A 10-video call typically costs up to 10 credits, so start with a small limit. Rate limit: 5 requests per 10 seconds.
入力スキーマ
{
"type": "object",
"properties": {
"url": {
"type": "string",
"description": "YouTube channel URL or handle (e.g. https://www.youtube.com/@lexfridman or @lexfridman)"
},
"limit": {
"default": 10,
"description": "Number of most-recent videos to fetch, 1-50 (default 10). Upper bound on the credit charge for this call.",
"type": "integer",
"minimum": 1,
"maximum": 50
}
},
"required": [
"url"
],
"$schema": "http://json-schema.org/draft-07/schema#"
}出力スキーマ
{
"type": "object",
"properties": {
"channel": {
"type": "string",
"description": "Channel name"
},
"totalVideos": {
"type": "number",
"description": "Videos attempted in this call"
},
"succeeded": {
"type": "number",
"description": "Videos that returned a transcript (each charged 1 credit)"
},
"failed": {
"type": "number",
"description": "Videos skipped without charge (no captions)"
},
"transcripts": {
"type": "string",
"description": "All transcripts as timestamped markdown, one section per video, divider-separated"
},
"creditsUsed": {
"type": "number",
"description": "Credits charged for this call"
},
"creditsRemaining": {
"type": "number",
"description": "Account balance after this call"
}
},
"required": [
"channel",
"totalVideos",
"succeeded",
"failed",
"transcripts",
"creditsUsed",
"creditsRemaining"
],
"$schema": "http://json-schema.org/draft-07/schema#",
"additionalProperties": false
}🟢get_playlist_transcripts(url, limit)
Get transcripts for the videos in a YouTube playlist (in playlist order) as timestamped markdown, one section per video. Use for working through a course, series, or curated list; for one known video use get_transcript. Read-only; requires an API key. Charges 1 credit per video that returns a transcript, including repeat calls; videos without captions are skipped free. A 10-video call typically costs up to 10 credits, so start with a small limit. Rate limit: 5 requests per 10 seconds.
入力スキーマ
{
"type": "object",
"properties": {
"url": {
"type": "string",
"description": "YouTube playlist URL (e.g. https://www.youtube.com/playlist?list=PLxxxxxx)"
},
"limit": {
"default": 10,
"description": "Number of videos to fetch from the start of the playlist, 1-50 (default 10). Upper bound on the credit charge for this call.",
"type": "integer",
"minimum": 1,
"maximum": 50
}
},
"required": [
"url"
],
"$schema": "http://json-schema.org/draft-07/schema#"
}出力スキーマ
{
"type": "object",
"properties": {
"playlist": {
"type": "string",
"description": "Playlist title"
},
"totalVideos": {
"type": "number",
"description": "Videos attempted in this call"
},
"succeeded": {
"type": "number",
"description": "Videos that returned a transcript (each charged 1 credit)"
},
"failed": {
"type": "number",
"description": "Videos skipped without charge (no captions)"
},
"transcripts": {
"type": "string",
"description": "All transcripts as timestamped markdown, one section per video, divider-separated"
},
"creditsUsed": {
"type": "number",
"description": "Credits charged for this call"
},
"creditsRemaining": {
"type": "number",
"description": "Account balance after this call"
}
},
"required": [
"playlist",
"totalVideos",
"succeeded",
"failed",
"transcripts",
"creditsUsed",
"creditsRemaining"
],
"$schema": "http://json-schema.org/draft-07/schema#",
"additionalProperties": false
}コミュニティ
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