Api Endpoint

Automaton Media APIs

YouTube transcript API: the full transcript of a YouTube video (or another site with captions) from its own captions in seconds, as txt, srt, vtt or JSON segments with timestamps, title and language. No speech recognition, flat price per video up to 4 hours. Videos without captions are refused before payment; use /v1/transcribe for those.

Open interactive test console

Offering

Provider: api.language123.net
Method: POST
Offering type: Api Endpoint
Transport type: http
Category: Creative
Delivery: Not provided
Pricing model: Not provided
x402 version: 2

Endpoint context

URL: https://api.language123.net/v1/youtube-transcript
MIME type: Not provided
First seen: 2026-10-16T01:50:24.663Z
Last seen: 2026-11-01T15:06:40.170Z
Tags: YouTube, youtube-transcript, captions, subtitles, transcript

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1: 0.002 USDC
Atomic price: 2000 · Network: eip155:8453 · Asset: USDC · Scheme: exact

Raw x402 terms

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "2000",
    "payTo": "0x0360F2276f55A7430667134577D396CD76ffDDfe"
  }
]

Observed health

Status: Healthy
Latest latency: 1488 ms
Average latency: 2154 ms
HTTP status: 204
Last checked: 2026-11-02T18:38:21.994Z
Reachability: 100% over 14 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "additionalProperties": false,
  "properties": {
    "body": {
      "properties": {
        "format": {
          "description": "Default txt",
          "enum": [
            "txt",
            "srt",
            "vtt",
            "json"
          ],
          "type": "string"
        },
        "url": {
          "description": "Video URL with captions (YouTube watch/shorts/youtu.be links, or another site yt-dlp supports)",
          "type": "string"
        }
      },
      "required": [
        "url"
      ],
      "type": "object"
    },
    "bodyType": {
      "enum": [
        "json",
        "form-data",
        "text"
      ],
      "type": "string"
    },
    "method": {
      "enum": [
        "POST"
      ],
      "type": "string"
    },
    "type": {
      "const": "http",
      "type": "string"
    }
  },
  "required": [
    "type",
    "method",
    "bodyType",
    "body"
  ],
  "type": "object"
}

Output schema

{
  "properties": {
    "example": {
      "type": "object"
    },
    "type": {
      "type": "string"
    }
  },
  "required": [
    "type"
  ],
  "type": "object"
}