YouTube Video transcript full API
Fetch a YouTube video or Short transcript with timed segments and its provenance: whether the words are creator-written captions or machine speech recognition.
$1.00/1k req, pay per request, no subscription.
Transcript
{"text": "welcome back to the channel today we're going to talk about","startSeconds": 0,"endSeconds": 4.2}
Pricing and providers
YouTube Video transcript full API pricing: one API, 2 interchangeable providers
The cheapest provider serves first. If it fails, the next one takes over in the same call.
Try it
Get YouTube video transcript full in one request
{
"found": true,
"data": {
"transcript": "welcome back to the channel today we're going to talk about how sourdough starters actually work at a chemistry level first let's talk about the flour you use because that changes everything about fermentation speed",
"language": "en",
"isAutoGenerated": false,
"isAiGenerated": false,
"title": "The Science of Sourdough, Explained Simply",
"channel": "Kitchen Chemistry with Owen",
"durationSeconds": 612,
"segments": [
{
"text": "welcome back to the channel today we're going to talk about",
"startSeconds": 0,
"endSeconds": 4.2
},
{
"text": "how sourdough starters actually work at a chemistry level",
"startSeconds": 4.2,
"endSeconds": 9.1
},
{
"text": "first let's talk about the flour you use because that changes",
"startSeconds": 9.1,
"endSeconds": 14.6
},
{
"text": "everything about fermentation speed",
"startSeconds": 14.6,
"endSeconds": 17.8
}
],
"videoId": "nS3oOb6VwJq",
"url": "https://www.youtube.com/watch?v=nS3oOb6VwJq",
"description": "A deep dive into the microbiology and chemistry behind a healthy sourdough starter, with tips for troubleshooting a sluggish rise.",
"views": 341000,
"likes": 18900,
"authorId": "UC5sTr3u6vBzPq8fWdZgX9Lm",
"authorUrl": "https://www.youtube.com/@kitchenchemistrywithowen",
"image": "https://i.ytimg.com/vi/nS3oOb6VwJq/hqdefault.jpg",
"createdUtc": 1757462400,
"keywords": [
"sourdough",
"baking science",
"fermentation"
],
"category": "Education"
}
}Full parameter and response reference - every field, type, and example for this endpoint.
Reference
One request, one response shape.
Every field you send and every field you get back, each with a real example.
Last verified 2026-10-07 · uptime and latency measured over 30d
Request body
JSON, posted to this endpoint.
- urlstring
https://www.youtube.com/watch?v=nS3oOb6VwJq
YouTube video or Short URL (e.g. "https://www.youtube.com/watch?v=dQw4w9WgXcQ" or "https://www.youtube.com/shorts/Fir1x9cw2vg").
- captionKindenum
Which caption track to accept: "manual" only creator-written captions, "automatic" only YouTube's speech recognition, "any" whichever exists.
- languagestring
Preferred caption language code (e.g. "en", "es"). Defaults to English. If the video has no captions in that language, you get the transcript in another language the video has; the `language` field in the result says which.
- requireFieldsarray
Optional; omit it and routing is unchanged, with the cheapest source serving. Name the output fields this request must be able to return, for example `isAiGenerated`, and it is served only by a source that returns every one of them. Fields you do not name are still returned whenever the serving source has them. This can raise your price: when the cheapest source cannot return a named field, a dearer source serves, and you are quoted and charged its price. A named field can still be absent on a transcript that genuinely lacks it. Naming a combination that no single source returns together is refused as invalid input, with no charge.
Response
JSON, one example value per field.
- foundboolean
true
- transcriptstring
welcome back to the channel today we're going to talk about how sourdough starters actually work at a chemistry level first let's talk about the flour you use because that changes everything about fermentation speed
- languagestring
en
- isAutoGeneratedboolean
false
- isAiGeneratedbooleancan require
false
- titlestring
The Science of Sourdough, Explained Simply
- channelstring
Kitchen Chemistry with Owen
- durationSecondsnumber
612
- videoIdstring
nS3oOb6VwJq
- urlstring
https://www.youtube.com/watch?v=nS3oOb6VwJq
- descriptionstring
A deep dive into the microbiology and chemistry behind a healthy sourdough starter, with tips for troubleshooting a sluggish rise.
- viewsnumber
341000
- likesnumber
18900
- authorIdstring
UC5sTr3u6vBzPq8fWdZgX9Lm
- authorUrlstring
https://www.youtube.com/@kitchenchemistrywithowen
- imagestring
https://i.ytimg.com/vi/nS3oOb6VwJq/hqdefault.jpg
- createdUtcnumber
1757462400
- keywords[]string
sourdough
- categorystring
Education
- textstring
welcome back to the channel today we're going to talk about
- startSecondsnumber
0
- endSecondsnumber
4.2
FAQ
About the YouTube Video transcript full API
The AnyAPI YouTube Video transcript full API returns YouTube video transcript full data as normalized JSON from one POST call to /v1/run/youtube.video_transcript_full. Fetch a YouTube video or Short transcript with timed segments and its provenance: whether the words are creator-written captions or machine speech recognition. AnyAPI routes each request across 2 sources and falls back automatically when one fails. It costs from $1 per 1,000 requests, in US dollars with no subscription and no monthly minimum. Over the last 30 days, 99.8% of YouTube video transcript full calls through AnyAPI succeeded, with a median response time of 6.8 seconds across 1,561 measured calls.