Extract YouTube video transcript
Extracts captions/subtitles from a YouTube video. Returns segments with timestamps and the full concatenated text. Responds with 200 if ready immediately, or 202 with a job_id to poll.
Authorization
Bearer AuthorizationBearer <token>
API key (rlay_live_* or rlay_test_*)
In: header
Request Body
application/json
TypeScript Definitions
Use the request body type in TypeScript.
Response Body
application/json
application/json
application/json
application/json
curl -X POST "https://api.relayapi.dev/v1/tools/youtube/transcript" \ -H "Content-Type: application/json" \ -d '{ "url": "string" }'{
"success": true,
"video_id": "string",
"language": "string",
"is_auto_generated": true,
"segments": [
{
"text": "string",
"start": 0,
"duration": 0
}
],
"full_text": "string"
}{
"job_id": "string",
"status": "processing",
"poll_url": "string"
}{
"error": {
"code": "string",
"message": "string",
"details": {
"property1": null,
"property2": null
}
}
}{
"error": {
"code": "string",
"message": "string",
"details": {
"property1": null,
"property2": null
}
}
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Poll for tool job result GET
Check the status of an async tool job (download or transcript). Returns processing, completed with result, or failed with error.
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