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Radar YouTube Transcript Bulk Extractor
x402
Radar YouTube Transcript Bulk Extractor is a paid API for AI agents from 2-29-135-242.sslip.io, paid per call via x402, $0.02/call, status unknown (last checked 2026-11-03).
Extracts transcripts from multiple YouTube videos, playlists, or channels in bulk, with options for language preference, translation, and output format
Price / call$0.02
Success—
StatusUnknown
How this service works
Data APIs (leads, jobs, YouTube, Reddit, Trends, SEC, tenders...). POST JSON, pay per call in USDC on Base via x402. Charged only when results are returned.
Output
Returns a JSON object with a count and an array of transcript items, each containing the video's transcript in the requested format (plain text, timed segments, merged sentences, or timestamped text), sourced from the first available preferred language or translated as specified.
Example use cases
Research competitor YouTube content
“Grab the transcripts from the last 10 videos on the @TED YouTube channel in English, using the 'text' output format so I just get plain readable text — prefer manual captions where they exist.”
Translate foreign language video transcripts
“Extract transcripts from these 5 French YouTube videos and translate them all into English: [list of URLs]. Give me the full output format with segments and sentences.”
Summarize a YouTube playlist
“Get transcripts for up to 20 videos from this playlist https://www.youtube.com/playlist?list=PLxxxxxx — I want timestamped format in English so I can identify key moments in each video.”
Technical details
Endpoint
POSThttps://2-29-135-242.sslip.io/x402/youtube-transcript-bulk-extractor?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need transcripts from multiple YouTube videos, playlists, or channels in a single call with fine-grained control over language preference, caption type (manual vs auto-generated), output format, and optional translation. Prefer this over single-video transcript tools when processing channel archives or playlists at scale. The pay-per-result model (USDC on Base via x402) means you only pay when transcripts are successfully returned.
Side effects
- Video has no captions available and fallbackToAnyLanguage is false — video is skipped
- Requested language not available and no fallback configured — empty result for that video
- Invalid or inaccessible YouTube URL — error or skipped item
- maxItems reached before all source videos are processed — partial results returned
- Private or age-restricted video — inaccessible, skipped
- Translation requested for unsupported language — YouTube translation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| maxItems | integer | Hard limit on how many transcripts the run saves (and you pay for). |
| languages | array | Language codes in order of preference, e.g. en, de, es. The first available one is used. |
| startUrls | array | One per line: a video URL or ID, a playlist URL, or a channel URL / @handle. Playlists and channels are expanded into their videos. |
| translateTo | string | Language code to translate every transcript into using YouTube's translation, e.g. en. Leave empty to keep the original language. |
| outputFormat | string | full = text + segments + sentences. text = plain text only. segments = timed caption fragments. sentences = fragments merged into sentences. timestamped = readable text with [m:ss] marks. |
| maxVideosPerSource | integer | How many of the newest videos to take from each playlist or channel. |
| preferManualCaptions | boolean | Use captions written by the creator when they exist, and auto-generated ones otherwise. |
| fallbackToAnyLanguage | boolean | If none of the preferred languages exists, take the first available transcript instead of skipping the video. |
Output
Schema · Response
{
"type": "json",
"example": {
"count": 1,
"items": [
{
"...": "one result object"
}
]
}
}Tags
x402
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