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 $0.01 / call

Try it live

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

POST /v1/youtube/transcript$0.01/call

Live testing

API Key

Video ID*

Language

Optional. Two-letter language code.

Response

Example response — hit "Run" 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);

Why YepAPI is cheaper

No monthly minimums. No enterprise plans. Just pay per call.

Provider	Cost / call	Catch
YepAPI	$0.01	No minimum. Pay as you go.
YouTube Data API v3	$0.00	10K units/day free

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. No credit card required.

Get Started Read Docs

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POST /v1/youtube/search

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$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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