Fetch a YouTube transcript from a video URL or 11-char id (video_id, also accept
Fetch a YouTube transcript from a video URL or 11-char id (video_id, also accepted as ref or url); returns a presigned download URL to the transcript
Answeringour last check, 2026-09-24
1 of 1checks answered this week
890 msmedian answer time
$0.01listed price per call
$0.01price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://surf.cascade.fyi/api/v1/youtube/get
| Category | Image and media |
|---|---|
| Provider host | surf.cascade.fyi |
| Networks | eip155:143, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 4 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.01 | 890 ms |
Example input (from the provider)
{
"body": {
"language_code": "en",
"origin": "uploader_provided",
"video_id": "https://www.youtube.com/watch?v=dQw4w9WgXcQ"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"description": "Input for POST /youtube/get",
"properties": {
"format": {
"default": "inline",
"description": "'inline' (default): include the transcript in the response when it fits the inline cap; otherwise omit it and set transcript_omitted_reason. 'url': never include the transcript; caller fetches download_url. download_url is always present.",
"enum": [
"inline",
"url"
],
"type": "string"
},
"language_code": {
"default": "en",
"description": "ISO 639-1 language code (e.g. 'en', 'de', 'fr')",
"maxLength": 10,
"minLength": 2,
"type": "string"
},
"origin": {
"default": "uploader_provided",
"description": "'uploader_provided' for human captions (default), 'auto_generated' for YouTube auto-captions.",
"enum": [
"uploader_provided",
"auto_generated"
],
"type": "string"
},
"video_id": {
"description": "YouTube video URL or 11-char video id (e.g. https://youtu.be/dQw4w9WgXcQ, https://www.youtube.com/watch?v=dQw4w9WgXcQ, or dQw4w9WgXcQ). Also accepted as `ref` or `url`.",
"minLength": 1,
"type": "string"
}
},
"required": [
"video_id"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}