POST/v1/youtube/transcript

YouTube Transcript API

YouTube transcript API — full video captions with timestamps in multiple languages. AI training data and content indexing from $0.01/call.

Fetch the complete transcript (captions) for any YouTube video including start/end timestamps for each line. Supports multiple languages. Ideal for AI training, search indexing, and accessibility.

Full Docs Get API Key — Free $5 Credit $0.01 / call

Try it live

Fill in the fields and hit Run to see a real response.

POST/v1/youtube/transcripttranscript$0.01/call

Response

Example response — hit "Send Request" to see a live result

{
  "ok": true,
  "data": {
    "id": "dQw4w9WgXcQ",
    "transcript": [
      {
        "startMs": "320",
        "endMs": "14580",
        "startTime": "0:00",
        "text": "[Music]"
      },
      {
        "startMs": "18170",
        "endMs": "22120",
        "startTime": "0:18",
        "text": "We're no strangers to love"
      }
    ]
  }
}

Features

✓Full transcript with start and end timestamps

✓Multi-language support

✓Formatted start times (e.g., 0:18)

✓Works with auto-generated and manual captions

Use cases

AI Training Data

Extract video transcripts as training data for AI and NLP models.

Search Indexing

Index video content by transcript text to enable full-text search over video libraries.

Content Summarization

Feed transcripts into summarization models to generate video summaries.

Accessibility

Provide text transcripts alongside embedded videos for accessibility compliance.

Quick start

Copy this snippet and start making calls.

const res = await fetch('https://api.yepapi.com/v1/youtube/transcript', {
  method: 'POST',
  headers: {
    'x-api-key': 'YOUR_API_KEY',
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
    "id": "dQw4w9WgXcQ",
    "lang": "en"
  }),
});
const data = await res.json();
console.log(data);

What developers say

“Switched from SerpAPI and cut our SERP costs by 80%. Same data quality, way simpler billing.”
Marcus T.
SEO Platform Founder

“One API key for AI models, SERP data, and web scraping. Saved us from managing 4 separate providers.”
Priya S.
Full-Stack Developer

“The $5 free credit let us prototype our entire rank tracking feature before committing. No other API does that.”
Jake R.
Indie Hacker

Frequently asked questions

Fetch the complete transcript (captions) for any YouTube video including start/end timestamps for each line. Supports multiple languages. Ideal for AI training, search indexing, and accessibility.

Each API call costs $0.01. No monthly minimums or subscriptions — you only pay for what you use.

Sign up for a free API key, then send a POST request to /v1/youtube/transcript. Check the code example above for a ready-to-use snippet in JavaScript, cURL, or Python.

YepAPI bundles SEO, AI, and web scraping APIs under one key with no monthly minimums. You get lower per-call pricing, a unified dashboard, and one billing account instead of managing multiple providers.

Ready to integrate?

Get your API key and start making calls in 30 seconds. $5 free credit on signup — no credit card required.

Get API Key — Free $5 Credit Read Docs

More youtube api endpoints

Search

$0.01

YouTube search API — find videos, channels, and playlists with filters for date, duration, and type. Structured JSON results from $0.01/call.

POST /v1/youtube/search

Video Details

$0.02

Full YouTube video metadata — title, views, likes, description, keywords, thumbnails, and available formats. Video intelligence from $0.02/call.

POST /v1/youtube/video

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