Fetch a YouTube transcript

Extract a text transcript from a YouTube video URL. The server talks to YouTube’s InnerTube API internally.

POST/v1/youtube/transcript

Authorization

AuthorizationBearer token (JWT) · headerrequired

Bearer API key issued for your account. Send Authorization: Bearer <key>.

Request body

requiredapplication/json

urlstring<uri>required

YouTube video URL

languagestring

Preferred language code or auto

default: "auto"

Responses

200

Transcript text and detected language

textstringrequired

Full transcript text

languagestringrequired

Language code of the selected caption track

400

Bad request

string

401

Missing or invalid bearer token

string

403

Billing or plan entitlement blocked the request

string

502

Upstream service (arXiv, YouTube, web page) failed

string

Try it

Server

Base URLCustom base URLOverrides the selected server when set.

Authorization

Bearer token (JWT)Remember on this deviceInclude my values in samples

Bodyapplication/json

urlstring*YouTube video URLlanguagestringPreferred language code or `auto`

Request

curl -X POST 'https://api.webfold.ai/v1/youtube/transcript' \
  -H 'Authorization: Bearer YOUR_TOKEN' \
  -H 'Accept: application/json' \
  -H 'Content-Type: application/json' \
  -d '{
  "url": "https://youtu.be/dQw4w9WgXcQ",
  "language": "en"
}'

import requests

response = requests.post(
    "https://api.webfold.ai/v1/youtube/transcript",
    headers={
        "Authorization": "Bearer YOUR_TOKEN",
        "Accept": "application/json",
        "Content-Type": "application/json"
    },
    data="{\n  \"url\": \"https://youtu.be/dQw4w9WgXcQ\",\n  \"language\": \"en\"\n}",
)

const response = await fetch("https://api.webfold.ai/v1/youtube/transcript", {
  method: "POST",
  headers: {
    "Authorization": "Bearer YOUR_TOKEN",
    "Accept": "application/json",
    "Content-Type": "application/json"
  },
  body: "{\n  \"url\": \"https://youtu.be/dQw4w9WgXcQ\",\n  \"language\": \"en\"\n}"
});

Response

{
  "text": "string",
  "language": "en"
}

"string"

"string"

"string"

"string"