urlstringrequired
YouTube video or Short URL (e.g. "https://www.youtube.com/watch?v=dQw4w9WgXcQ" or "https://www.youtube.com/shorts/Fir1x9cw2vg").
YouTube Video Transcript (Provenance)
https://api.sandbase.ai/v1/api/youtube/video-transcript-fullFetch a YouTube video or Short transcript with timed segments and its provenance: whether the words are creator-written captions or machine speech recognition.
- Price
- $0.002USD / call
- Method
- POST
- Response
- JSON
- Parameters
- 1 required · 3 optional
Playground
Input
YouTube video or Short URL (e.g. "https://www.youtube.com/watch?v=dQw4w9WgXcQ" or "https://www.youtube.com/shorts/Fir1x9cw2vg").
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. With `captionKind` set to "manual" or "automatic", no other language is returned.
Which caption track to accept: "manual" only creator-written captions, "automatic" only YouTube's speech recognition, "any" whichever exists. Allowed values: manual, automatic, any.
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 `views`, 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.
OutputReady
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Complete the inputs, then click Run.
API README
YouTube Video Transcript (Provenance) 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.
Request
curl -X POST "https://api.sandbase.ai/v1/api/youtube/video-transcript-full" \
-H "Authorization: Bearer $SANDBASE_API_KEY" \
-H "Content-Type: application/json" \
-d '{"url": "https://www.youtube.com/watch?v=dQw4w9WgXcQ"}'
The result is returned in outputs[0].data. A lookup that finds nothing still succeeds and returns found: false.
Parameters
| Name | Type | Required | Description |
|---|---|---|---|
url | string | Yes | YouTube video or Short URL (e.g. "https://www.youtube.com/watch?v=dQw4w9WgXcQ" or "https://www.youtube.com/shorts/Fir1x9cw2vg"). |
captionKind | string | No | Which caption track to accept: "manual" only creator-written captions, "automatic" only YouTube's speech recognition, "any" whichever exists. One of: manual, automatic, any. Default "any". |
language | string | No | 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 whi |
requireFields | array | No | 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 views, and it is served only by a source that returns every one of t |
Pricing
Billed at the actual cost of each call, usually $0.002 per request. A call can cost more when the first data source fails and another one answers. Failed calls are not charged. Lookups that find nothing and searches with no results are billed at their actual cost, which is often lower and can be $0.
Start building
Send your first request
Platform API endpoint with unified authentication and usage tracking.
# The quoted heredoc keeps Unicode and shell metacharacters unchanged.
result=$(curl --fail-with-body --silent \
-X POST "https://api.sandbase.ai/v1/api/youtube/video-transcript-full" \
-H "Authorization: Bearer $SANDBASE_API_KEY" \
-H "Content-Type: application/json" \
--data-binary @- <<'SANDBASE_JSON'
{
"url": "https://www.youtube.com/watch?v=dQw4w9WgXcQ",
"captionKind": "any"
}
SANDBASE_JSON
)
printf '%s\n' "$result"2. Authentication
Set your SandBase API key in your server environment. Requests use Bearer authentication.
export SANDBASE_API_KEY="YOUR_API_KEY"Keep your key on the server. Do not expose it in browser code.
3. Parameters
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. With `captionKind` set to "manual" or "automatic", no other language is returned.
captionKindstring
Which caption track to accept: "manual" only creator-written captions, "automatic" only YouTube's speech recognition, "any" whichever exists.
Default: "any"
Possible values: manual, automatic, any
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 `views`, 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.
4. Response
Saved example response for this API; no live request is made when viewing it.
No saved response has been published. Run the API in Playground to inspect its response.
Explore more
Related APIs
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YouTube | From $0.002 per call | JSON |
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YouTube | From $0.0012 per call | JSON |
YouTube | From $0.0012 per call | JSON |
YouTube | From $0.0012 per call | JSON |
YouTube | $0.01 per call | JSON |
Questions
FAQ
How do I use the YouTube Video Transcript (Provenance) API?
Send a POST request to https://api.sandbase.ai/v1/api/youtube/video-transcript-full with your SandBase API key in the Authorization header (Bearer) and the parameters as a JSON body. You can also try it in the Playground on this page without writing code.
How much does the YouTube Video Transcript (Provenance) API cost?
From $0.002 per call, billed from your SandBase balance. You are only charged for calls you make; there is no subscription.
What parameters does the YouTube Video Transcript (Provenance) API accept?
Required: url (string). Optional: language (string), captionKind (one of manual, automatic, any) and requireFields (array). The Parameters table and the Playground on this page list every field.
What does the YouTube Video Transcript (Provenance) API return?
A JSON response returned in the same HTTP request (synchronous).
Do I need a YouTube developer account or API key?
No. YouTube Video Transcript (Provenance) runs through SandBase, so one SandBase API key covers this endpoint and every other API and model in the catalog. You do not need to apply for YouTube API access separately.