YouTube Transcript Pro API - IZHubs Developer

🎯 Getting Started with YouTube Transcript Pro

Welcome to the YouTube Transcript Pro API! This guide will show you how to quickly extract high-quality, AI-ready text from any YouTube video in seconds.

🌐 Looking for a no-code solution? Try our official free web tool: YouTube Transcript Generator

🌟 Why use our API?

Most scraping tools return dirty HTML or fragmented sentences that break LLM tokenizers. Our API provides:

transcript: A beautifully concatenated, single string of text — perfect for feeding directly into ChatGPT, Claude, or your custom RAG pipelines.
structured_transcript: A clean JSON array containing individual text blocks, ideal if you need to build custom video players or subtitle viewers.

🚀 1. Authentication

All requests to this API require your unique RapidAPI Key. You do not need to manage tokens yourself. Just ensure these headers are included in every request:

X-RapidAPI-Key: YOUR_RAPIDAPI_KEY
X-RapidAPI-Host: youtube-video-transcript-subtitles-pro.p.rapidapi.com

🛠️ 2. The `/transcript` Endpoint (GET)

This single endpoint handles everything. You can pass either a clean Video ID, or just dump a messy YouTube URL into the parameters.

Base URL: https://youtube-video-transcript-subtitles-pro.p.rapidapi.com/transcript

Parameters:

Parameter	Type	Required	Description
`videoId`	`string`	No*	The 11-character YouTube ID (e.g., `dQw4w9WgXcQ`).
`url`	`string`	No*	Any valid YouTube URL (e.g., `https://youtu.be/dQw4w9WgXcQ?t=43`).
`lang`	`string`	No	The language code. Defaults to `en`. Use `vi` for Vietnamese or other ISO codes.

Note: You must provide EITHER videoId OR url.

💻 3. Code Examples

Leverage the API in any environment. Click to expand your desired programming language below:

👉 cURL (Terminal)

curl --request GET \
	--url 'https://youtube-video-transcript-subtitles-pro.p.rapidapi.com/transcript?videoId=dQw4w9WgXcQ&lang=en' \
	--header 'X-RapidAPI-Host: youtube-video-transcript-subtitles-pro.p.rapidapi.com' \
	--header 'X-RapidAPI-Key: YOUR_RAPIDAPI_KEY'

👉 Node.js (Axios)

const axios = require('axios');

const options = {
  method: 'GET',
  url: 'https://youtube-video-transcript-subtitles-pro.p.rapidapi.com/transcript',
  params: { videoId: 'dQw4w9WgXcQ', lang: 'en' },
  headers: {
    'X-RapidAPI-Key': 'YOUR_RAPIDAPI_KEY',
    'X-RapidAPI-Host': 'youtube-video-transcript-subtitles-pro.p.rapidapi.com'
  }
};

try {
  const response = await axios.request(options);
  console.log(response.data.transcript);
} catch (error) {
  console.error(error);
}

👉 Python (Requests)

import requests

url = "https://youtube-video-transcript-subtitles-pro.p.rapidapi.com/transcript"
querystring = {"videoId": "dQw4w9WgXcQ", "lang": "en"}

headers = {
    "X-RapidAPI-Key": "YOUR_RAPIDAPI_KEY",
    "X-RapidAPI-Host": "youtube-video-transcript-subtitles-pro.p.rapidapi.com"
}

response = requests.get(url, headers=headers, params=querystring)
data = response.json()

print(data.get("transcript"))

👉 PHP (cURL)

<?php

$curl = curl_init();

curl_setopt_array($curl, [
	CURLOPT_URL => "https://youtube-video-transcript-subtitles-pro.p.rapidapi.com/transcript?videoId=dQw4w9WgXcQ&lang=en",
	CURLOPT_RETURNTRANSFER => true,
	CURLOPT_FOLLOWLOCATION => true,
	CURLOPT_ENCODING => "",
	CURLOPT_MAXREDIRS => 10,
	CURLOPT_TIMEOUT => 30,
	CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
	CURLOPT_CUSTOMREQUEST => "GET",
	CURLOPT_HTTPHEADER => [
		"X-RapidAPI-Host: youtube-video-transcript-subtitles-pro.p.rapidapi.com",
		"X-RapidAPI-Key: YOUR_RAPIDAPI_KEY"
	],
]);

$response = curl_exec($curl);
$err = curl_error($curl);
curl_close($curl);

if ($err) {
	echo "cURL Error #:" . $err;
} else {
	echo $response;
}

⚡ 4. No-Code Integrations

You can easily plug this API into your favorite automation platforms seamlessly.

🤖 n8n Integration Setup

Add an HTTP Request node to your workflow.
Set Method to GET.
Set URL to https://youtube-video-transcript-subtitles-pro.p.rapidapi.com/transcript.
Under Authentication, select None (we’ll use headers).
Add to Send Headers:
- Name: X-RapidAPI-Key | Value: YOUR_RAPIDAPI_KEY
- Name: X-RapidAPI-Host | Value: youtube-video-transcript-subtitles-pro.p.rapidapi.com
Add to Send Query Parameters:
- Name: videoId | Value: dQw4w9WgXcQ (or dynamic expression from previous node)
Execute the node. The response will instantly output clean JSON!

Make.com (Integromat) Setup

Add the standard HTTP - Make a request module.
Set URL to https://youtube-video-transcript-subtitles-pro.p.rapidapi.com/transcript.
Check the box for Show advanced settings.
In the Headers array, add two items:
- Key: X-RapidAPI-Key | Value: YOUR_RAPIDAPI_KEY
- Key: X-RapidAPI-Host | Value: youtube-video-transcript-subtitles-pro.p.rapidapi.com
In Query String, add the keys videoId and lang with the desired values.
Set Parse response to Yes.
Run the module to automatically map the transcript variable to downstream apps!

⚠️ 5. Error Handling

Status Code	Description	Solution
`200`	Success	Data retrieved successfully.
`400`	Bad Request	Invalid `url` or `videoId`.
`404`	Not Found	The video does not exist, is private, or has subtitles disabled.
`429`	Too Many Requests	Rate limit exceeded.
`500`	Server Error	YouTube change detected. Try again later.

💡 5. Best Practices for Developers

🧠 Caching is your friend: If you are building a wrapper application, cache the transcript response in your own database (e.g., Redis or PostgreSQL) using the videoId as the primary key. This saves your API quota!

🧠 Handling Long Videos: For podcasts over 2 hours long, the transcript string can be massive. Ensure your application’s memory can handle large JSON unmarshaling.