the402 endpoint detail

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api.sumvid.app v1 transcript

https://api.sumvid.app/v1/transcript

payable

Full transcript of a YouTube video from its URL — captions/subtitles as clean plain text in your language. YouTube transcript, video to text, captions extraction, subtitle download, speech to text, multilingual. 105 languages supported, including English, Spanish, Portuguese, French, German, Hindi, Arabic, Chinese, Japanese, Korean, Russian, Indonesian and Vietnamese. Pay per call, no account or A

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.005
Network
base
Pay to
0x9036fF40101eeff4Cb8A377d59e9432819b5d420
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
297 ms
Payment options
1 usable of 1
Last checked
2026-08-10T09:09:22.738Z (1d ago)
Category
web-scraping

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.sumvid.app%2Fv1%2Ftranscript"