ToolVet
70trust / 100

Youtube Transcript

by WebLens in News & content

x402 APIPassing, checked 1 min ago

Full transcript of any YouTube video with timestamps. Accepts a video ID or any YouTube URL.

POST
https://api.weblens.dev/social/youtube/transcript
Price
$0.03
per call in USDC
Uptime
95.5%
last 30 days
Response time
868 ms
1.4 s slowest 5%
Last check
Passed
1 min ago, next in 26 min

Run a free test callHow to call it

Reliability

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Status and outage history · Atom feed · Watch with other listings

How to call it

POST https://api.weblens.dev/social/youtube/transcript

Each call costs $0.03 in USDC on Base, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

POST https://api.weblens.dev/social/youtube/transcript
content-type: application/json

{
  "videoId": "dQw4w9WgXcQ"
}

Parameters

ParameterTypeRequiredDescription
langstringNoTranscript language code (default: video default)
videoIdstringYesYouTube video ID (e.g. dQw4w9WgXcQ) or full video URL

Example response

The provider's example. We can't check it without paying.

{
  "fetchedAt": "2026-07-25T12:00:00.000Z",
  "fullText": "We're no strangers to love...",
  "requestId": "req_yt123",
  "segments": [
    {
      "startMs": 0,
      "startTime": "0:00",
      "text": "We're no strangers to love"
    }
  ],
  "videoId": "dQw4w9WgXcQ"
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.03.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://api.weblens.dev/social/youtube/transcript' \
  -H 'content-type: application/json' \
  --data-raw '{"videoId":"dQw4w9WgXcQ"}'

# 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 - -X POST 'https://api.weblens.dev/social/youtube/transcript' \
  -H 'content-type: application/json' \
  --data-raw '{"videoId":"dQw4w9WgXcQ"}' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// 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 $0.03 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.03" });
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 $0.03 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fapi.weblens.dev%2Fsocial%2Fyoutube%2Ftranscript&method=POST
const res = await pay("https://api.weblens.dev/social/youtube/transcript", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "videoId": "dQw4w9WgXcQ"
  }),
});
console.log(res.status, await res.text());
Python: pay and call
# 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 $0.03 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.03"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://api.weblens.dev/social/youtube/transcript",
        json={
            "videoId": "dQw4w9WgXcQ",
        },
    )
    print(res.status_code, res.text)

Security scan

No findings

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Recent checks

WhenResultHTTPTimePrice
1 min agoPassed4021.4 s$0.03
5 h agoPassed4021.4 s$0.03
10 h agoPassed402436 ms$0.03
15 h agoPassed402669 ms$0.03
20 h agoPassed402707 ms$0.03
Show 10 older checks
25 h agoPassed402806 ms$0.03
29 h agoPassed4021.1 s$0.03
34 h agoPassed402983 ms$0.03
39 h agoPassed402661 ms$0.03
43 h agoPassed402868 ms$0.03
47 h agoPassed4021.0 s$0.03
2 days agoPassed4021.0 s$0.03
2 days agoPassed402892 ms$0.03
3 days agoPassed402772 ms$0.03
3 days agoPassed402726 ms$0.03