YouTube Transcript API - Extract video transcripts

curl --request POST \ --url https://api.llmlayer.dev/api/v2/youtube_transcript \ --header 'Authorization: Bearer <token>' \ --header 'Content-Type: application/json' \ --data ' { "url": "https://www.youtube.com/watch?v=dQw4w9WgXcQ", "language": "en" } '

{ "transcript": "<string>", "url": "<string>", "title": "<string>", "description": "<string>", "author": "<string>", "views": 123, "likes": 123, "date": "<string>", "cost": 123, "language": "<string>" }

Authorizations

Authorization

string

header

required

Bearer token authentication using your LLMLayer API key. Include in Authorization header as: Bearer YOUR_LLMLAYER_API_KEY

Body

application/json

url

string<uri>

required

YouTube video URL (supports youtube.com and youtu.be)

Example:

"https://www.youtube.com/watch?v=dQw4w9WgXcQ"

language

string | null

Language code for transcript (e.g., 'en', 'es', 'fr'). If not specified, uses video's default language.

Example:

"en"

Response

Extracted transcript with video metadata

transcript

string

required

Full video transcript text

url

string

required

YouTube video URL

title

string | null

Video title

description

string | null

Video description

author

string | null

Channel name/author

views

integer | null

View count

likes

integer | null

Like count

date

string | null

Upload date

cost

number | null

Cost in USD (value from COST_YOUTUBE_TRANSCRIPT constant)

language

string | null

Language of the returned transcript