Marketplace · API · x402

api.sumvid.app/v1/transcript

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 API key.

Endpoint	`https://api.sumvid.app/v1/transcript`
Trust	100% uptime over 1 checks · ~240 ms
Pricing	Pay per call with x402, no account. Call it to get an exact quote before paying.
network	eip155:8453
scheme	exact
pay to	0x9036fF40101eeff4Cb8A377d59e9432819b5d420
method	POST
last updated	2026-10-30T06:18:49.752Z

Use it

Call it (an x402 client pays automatically)

curl -i https://api.sumvid.app/v1/transcript
# 402 reply -> sign PAYMENT-REQUIRED with an x402 client (e.g. @x402/fetch) -> retry with PAYMENT-SIGNATURE

This listing as JSON

curl https://aipaygen.com/v1/catalog/api/x402-bcfef7bb41bb3c51

Search the whole marketplace from your agent (MCP)

{
  "mcpServers": {
    "aipaygen": {
      "url": "https://aipaygen.com/mcp"
    }
  }
}