# YouTube Subtitles & AI LLM Context (`unrivaled_fortress/youtube-transcript-summary-ai`) Actor

Extract full transcripts, auto-captions, and timestamps from any YouTube video in seconds. Formatted for ChatGPT, Claude, RAG, and AI summarizers.

- **URL**: https://apify.com/unrivaled\_fortress/youtube-transcript-summary-ai.md
- **Developed by:** [David A](https://apify.com/unrivaled_fortress) (community)
- **Categories:** Videos, AI
- **Stats:** 3 total users, 2 monthly users, 100.0% runs succeeded, 0 bookmarks
- **User rating**: No ratings yet

## Pricing

from $0.98 / 1,000 results

This Actor is paid per event. You are not charged for the Apify platform usage, but only a fixed price for specific events.
Since this Actor supports Apify Store discounts, the price gets lower the higher subscription plan you have.

Learn more: https://docs.apify.com/actors/running/actors-in-store.md#pay-per-event

## What's an Apify Actor?

An Actor is a serverless cloud program that runs on the Apify platform. It has two run modes.
In Batch mode, an Actor accepts a well-defined JSON input, performs an action which can take anything from a few seconds to a few hours,
and optionally produces a well-defined JSON output, datasets with results, or files in key-value store.
In Standby mode, an Actor provides a web server which can be used as a website, API, or an MCP server.

Apify vocabulary and the platform model are defined once, in the agent quickstart at https://apify.com/agents.md.

## How to integrate an Actor?

If asked about integration, you help developers integrate Actors into their projects.
You adapt to their stack and deliver integrations that are safe, well-documented, and production-ready.

Do not guess an integration path. Every one of them is in the agent quickstart at https://apify.com/agents.md: the Apify MCP server, Agent Skills with the Apify CLI, the JavaScript and Python clients, the REST API, and the account-free path for an agent with no human to sign in. It also carries the rule on stating cost before the first paid run.

For examples already wired to this Actor's own input schema, see the [API](#api) section below.

Each client library has reference documentation the quickstart does not restate: [JavaScript/TypeScript](https://docs.apify.com/api/client/js/docs.md) (`npm install apify-client`) and [Python](https://docs.apify.com/api/client/python/docs.md) (`pip install apify-client`).

# README

## 📺 YouTube Subtitles & AI LLM Context — Timestamped Transcripts

High-speed, zero-browser YouTube transcript and captions extractor. Instantly converts any YouTube video into **clean text for LLMs (ChatGPT, Claude, Gemini)**, **timestamped subtitles for RAG pipelines**, and structured JSON segments.

***

### ⚡ Key Features

- 🚀 **Zero-Browser Architecture**: Runs in under 1 second per video with minimal memory usage.
- 🌐 **Multilingual Support**: Supports English, Korean, Spanish, French, German, Japanese, and 100+ languages.
- 🤖 **AI & RAG Ready**: Outputs `cleanProse` (stripped of timestamps and music brackets) ready for LLM prompt context, plus estimated token count.
- ⏱️ **Timestamped Formats**: Provides `[00:01:23]` formatted subtitles for video navigation and study notes.
- 📊 **Full Metadata**: Extracts video title, channel name, thumbnail URL, and word count.
- 💰 **Cost Effective**: Pay-Per-Event pricing at just **$0.0015 / video** ($1.50 / 1,000 videos).

***

### 📥 Input Parameters

| Field | Type | Description | Default |
| :--- | :--- | :--- | :--- |
| `videoUrls` | Array of strings | YouTube URLs or 11-char Video IDs | `["https://www.youtube.com/watch?v=dQw4w9WgXcQ"]` |
| `languages` | Array of strings | Priority language codes | `["en", "ko", "es", "fr", "de", "ja"]` |
| `includeMetadata` | Boolean | Include video title and author | `true` |

***

### 📤 Output Format

```json
{
  "videoId": "dQw4w9WgXcQ",
  "videoUrl": "https://www.youtube.com/watch?v=dQw4w9WgXcQ",
  "title": "Rick Astley - Never Gonna Give You Up (Official Music Video)",
  "author": "Rick Astley",
  "language": "en",
  "wordCount": 382,
  "estimatedLlmTokens": 450,
  "cleanProse": "We're no strangers to love You know the rules and so do I...",
  "timestampedTranscript": "[00:00:18] We're no strangers to love\n[00:00:22] You know the rules and so do I...",
  "segments": [
    { "start": 18.5, "duration": 4.1, "timestamp": "00:18", "text": "We're no strangers to love" }
  ]
}
```

***

#### 🔥 The B2B Contact & OSINT Intelligence Suite

Combine these actors to build a full-spectrum OSINT & lead intelligence stack:

| Tool | Purpose | Pricing | Link |
| :--- | :--- | :--- | :--- |
| 🕵️‍♂️ **Digital Footprint & OSINT Investigator** | Trace emails, usernames & phones across 30+ sites | $3.00 / 1K | [View on Store →](https://apify.com/unrivaled_fortress/digital-footprint-osint-investigator) |
| 💼 **B2B Tech Stack & Lead Enricher** | BuiltWith alternative — detect 120+ technologies | $3.00 / 1K | [View on Store →](https://apify.com/unrivaled_fortress/b2b-company-tech-stack-enricher) |
| 📺 **YouTube Subtitles & AI LLM Context** | Instant transcript & timestamp extractor for RAG | $1.50 / 1K | [View on Store →](https://apify.com/unrivaled_fortress/youtube-transcript-summary-ai) |
| 📣 **Meta Ads Library Creative Spy** | Scrape competitor Facebook & Instagram ads | $2.00 / 1K | [View on Store →](https://apify.com/unrivaled_fortress/facebook-meta-ads-library-scraper) |
| 🤖 **LLM Markdown Clean Web Crawler** | Firecrawl alternative — token-optimized Markdown | $1.50 / 1K | [View on Store →](https://apify.com/unrivaled_fortress/llm-markdown-clean-web-crawler) |
| 🔥 **LinkedIn Employees Scraper** | Extract decision makers & team members | $5.00 / 1K | [View on Store →](https://apify.com/unrivaled_fortress/linkedin-company-employees) |
| 📍 **Google Maps Business Leads** | Extract local businesses, addresses & phones | $2.00 / 1K | [View on Store →](https://apify.com/unrivaled_fortress/google-maps-business-enricher) |
| 🛡️ **Email Data Breach Hunter** | Detect compromised credentials & database leaks | $3.00 / 1K | [View on Store →](https://apify.com/unrivaled_fortress/email-data-breach-osint) |

***

### ⭐ Loved using this Actor?

If this Actor powered your data pipelines or saved you hours of manual research, **please take 10 seconds to leave a 5-star rating**! It helps independent creators maintain high-speed public tools.

👉 [**Click here to leave a review & rating on Apify Store**](https://apify.com/unrivaled_fortress/youtube-transcript-summary-ai#reviews)

***

**Crafted with precision by [David Ahn](https://apify.com/unrivaled_fortress)** · High-velocity data intelligence

# Actor input Schema

## `videoUrls` (type: `array`):

List of YouTube video URLs (watch, share, shorts) or 11-character video IDs.

## `languages` (type: `array`):

Priority list of language codes to extract (e.g. en, ko, es, de, fr, ja).

## `includeMetadata` (type: `boolean`):

Fetch video title, author, and channel details via oEmbed.

## Actor input object example

```json
{
  "videoUrls": [
    "https://www.youtube.com/watch?v=dQw4w9WgXcQ"
  ],
  "languages": [
    "en",
    "ko",
    "es",
    "fr",
    "de",
    "ja"
  ],
  "includeMetadata": true
}
```

# Actor output Schema

## `results` (type: `string`):

No description

# API

You can run this Actor programmatically using our API. Below are code examples in JavaScript, Python, and CLI, as well as the OpenAPI specification and MCP server setup.

## JavaScript example

```javascript
import { ApifyClient } from 'apify-client';

// Initialize the ApifyClient with your Apify API token
// Replace the '<YOUR_API_TOKEN>' with your token
const client = new ApifyClient({
    token: '<YOUR_API_TOKEN>',
});

// Prepare Actor input
const input = {
    "videoUrls": [
        "https://www.youtube.com/watch?v=dQw4w9WgXcQ"
    ]
};

// Run the Actor and wait for it to finish
const run = await client.actor("unrivaled_fortress/youtube-transcript-summary-ai").call(input);

// Fetch and print Actor results from the run's dataset (if any)
console.log('Results from dataset');
console.log(`💾 Check your data here: https://console.apify.com/storage/datasets/${run.defaultDatasetId}`);
const { items } = await client.dataset(run.defaultDatasetId).listItems();
items.forEach((item) => {
    console.dir(item);
});

// 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/js/docs

```

## Python example

```python
from apify_client import ApifyClient

# Initialize the ApifyClient with your Apify API token
# Replace '<YOUR_API_TOKEN>' with your token.
client = ApifyClient("<YOUR_API_TOKEN>")

# Prepare the Actor input
run_input = { "videoUrls": ["https://www.youtube.com/watch?v=dQw4w9WgXcQ"] }

# Run the Actor and wait for it to finish
run = client.actor("unrivaled_fortress/youtube-transcript-summary-ai").call(run_input=run_input)

# Fetch and print Actor results from the run's dataset (if there are any)
print(f"💾 Check your data here: https://console.apify.com/storage/datasets/{run.default_dataset_id}")
for item in client.dataset(run.default_dataset_id).iterate_items():
    print(item)

# 📚 Want to learn more 📖? Go to → https://docs.apify.com/api/client/python/docs/quick-start

```

## CLI example

```bash
echo '{
  "videoUrls": [
    "https://www.youtube.com/watch?v=dQw4w9WgXcQ"
  ]
}' |
apify call unrivaled_fortress/youtube-transcript-summary-ai --silent --output-dataset

```

## MCP server setup

```json
{
    "mcpServers": {
        "apify": {
            "type": "http",
            "url": "https://mcp.apify.com/?tools=fetch-actor-details,unrivaled_fortress/youtube-transcript-summary-ai"
        }
    }
}
```

The hosted server signs you in with OAuth on first connect, so no API token belongs in this config. Clients without OAuth support can send an `Authorization: Bearer <APIFY_API_TOKEN>` header instead, using a token from API & Integrations in Apify Console (https://console.apify.com/settings/integrations).

## OpenAPI specification

Download the OpenAPI definition: https://api.apify.com/v2/actors/TJCrvlWJ5Zt8WQGEI/builds/r8yDuzPHeghKBoKEx/openapi.json