Youtube Transcript

{
  "availableLanguages": [
    {
      "code": "en",
      "name": "English"
    },
    {
      "code": "de",
      "name": "German"
    }
  ],
  "checkedAt": "2026-10-15T07:59:38.624Z",
  "note": "Auto-generated captions contain recognition errors. The transcript is the video's own caption track; videos without captions are a 404 and not charged.",
  "source": "YouTube captions and video page, read through WebScraping.AI",
  "transcript": {
    "autoGenerated": false,
    "language": "en",
    "segments": [
      {
        "duration": 2.16,
        "start": 1.2,
        "text": "All right, so here we are, in front of the elephants"
      },
      {
        "duration": 2.656,
        "start": 5.318,
        "text": "the cool thing about these guys is that they have really..."
      },
      {
        "duration": 4.642,
        "start": 7.974,
        "text": "really really long trunks"
      }
    ],
    "text": "All right, so here we are, in front of the elephants the cool thing about these guys is that they have really... really really long trunks and that's cool (baaaaaaaaaaahhh!!) and that's pretty much all there is to say"
  },
  "video": {
    "channel": {
      "handle": "@jawed",
      "name": "jawed",
      "subscribers": 6690000,
      "url": "https://www.youtube.com/@jawed"
    },
    "chapters": [
      {
        "start_seconds": 0,
        "thumbnail": "https://i.ytimg.com/vi/jNQXAC9IVRw/hqdefault_0.jpg?sqp=-oaymwE6CNACELwBSFXyq4qpAywIARUAAIhCGAFwAcABBvABAfgBvgKAAvABigIMCAAQARhVIFkoZTAPuAL3GA==&rs=AOn4CLAhuYW3ZGUG5N_4AldnX9U3gZDqGg",
        "title": "Intro"
      },
      {
        "start_seconds": 5,
        "thumbnail": "https://i.ytimg.com/vi/jNQXAC9IVRw/hqdefault_10866.jpg?sqp=-oaymwE6CNACELwBSFXyq4qpAywIARUAAIhCGAFwAcABBvABAfgBvgKAAvABigIMCAAQARhVIFkoZTAPuAL3GA==&rs=AOn4CLBydROnmiablu3X987GYN4Es2EGiA",
        "title": "The cool thing"
      },
      {
        "start_seconds": 17,
        "thumbnail": "https://i.ytimg.com/vi/jNQXAC9IVRw/hqdefault_18866.jpg?sqp=-oaymwE6CNACELwBSFXyq4qpAywIARUAAIhCGAFwAcABBvABAfgBvgKAAvABigIMCAAQARhVIFkoZTAPuAL3GA==&rs=AOn4CLAh6LmK-AF5b146WbNsOkllq3q-Rw",
        "title": "End"
      }
    ],
    "durationSeconds": 19,
    "id": "jNQXAC9IVRw",
    "isLive": false,
    "likes": 20079378,
    "publishedAt": "2005-04-23T20:31:52-07:00",
    "title": "Me at the zoo",
    "url": "https://www.youtube.com/watch?v=jNQXAC9IVRw",
    "views": 444168235
  }
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://api.sitecheck-api.workers.dev/api/youtube/transcript?url=https%3A%2F%2Fyoutu.be%2FjNQXAC9IVRw'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - 'https://api.sitecheck-api.workers.dev/api/youtube/transcript?url=https%3A%2F%2Fyoutu.be%2FjNQXAC9IVRw' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.01 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.01" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.01 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.sitecheck-api.workers.dev%2Fapi%2Fyoutube%2Ftranscript
const res = await pay("https://api.sitecheck-api.workers.dev/api/youtube/transcript?url=https%3A%2F%2Fyoutu.be%2FjNQXAC9IVRw");
console.log(res.status, await res.text());

# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.01 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.01"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://api.sitecheck-api.workers.dev/api/youtube/transcript?url=https%3A%2F%2Fyoutu.be%2FjNQXAC9IVRw")
    print(res.status_code, res.text)