You have a YouTube URL, you need an MP3 link, and you need it in production this week. By the end of this article you’ll know exactly how to call a single endpoint that converts a YouTube video (≈5 minutes or less) into an audio file, parse the response, and ship it behind a feature flag.
What this API does and when to use it
The Youtube Video to Audio API converts a YouTube video into an audio file and returns a downloadable link plus basic metadata. Typical media workflows that benefit from this include:
- Extracting audio for podcast segments, intros/outros, or highlights.
- Generating audio-only previews for content libraries.
- Preparing voice tracks for transcription or moderation pipelines.
- Building internal tools that aggregate short-form media into audio playlists.
The API is available on Zyla API Hub, which provides a single account, one API key, and a subscription + quota billing model across thousands of APIs. For this listing you can start a 7-day trial on the product page.
Getting started on Zyla API Hub
Open the API page, click Subscribe or Start Free Trial when available, and copy your API key from the dashboard. All requests use the Authorization header with a Bearer token.
Start 7-day trial on Youtube Video to Audio API
- Authentication: Authorization: Bearer YOUR_API_KEY
- Billing: subscription + quota (not pay-per-call). Check the API page for current access options and pricing.
Endpoint overview
This API exposes a single endpoint that you can wire up quickly:
- Get Audio (GET) — converts a specified YouTube video to audio and returns a link and metadata.
Get Audio
- Method: GET
- URL: https://zylalabs.com/api/1812/youtube-video-to-audio-api/5870/get-audio
- Required query parameter:
- id (string): The YouTube video ID to convert. Example: p-Z3YrHJ1sU
- Note: Videos should be approximately 5 minutes or less in length.
cURL: one request that gets the job done
Copy, paste, run. Replace YOUR_API_KEY with your key if you want to test immediately.
curl -s -X GET "https://zylalabs.com/api/1812/youtube-video-to-audio-api/5870/get-audio?id=p-Z3YrHJ1sU" \
-H "Authorization: Bearer YOUR_API_KEY"Official example response
{
"link": "https://eta.123tokyo.xyz/get.php/9/9e/ty7nkwYqodA.mp3?cid=MmEwMTo0Zjg6YzAxMjozMmVlOjoxfE5BfERF&h=FwrcvY5cIfOO0jyXh5C-6Q&s=1737705748&n=%E2%82%B91%2C07%2C000%20_iPhone%2016%20Pro%20Max_%20USA%20to%20INDIA_%20%23shorts%20%23youtubeshorts&uT=R&uN=QWxlam9aeWxhTGFicw%3D%3D",
"title": "₹1,07,000 *iPhone 16 Pro Max* USA to INDIA! #shorts #youtubeshorts",
"filesize": 417480,
"progress": 100,
"duration": 22.896054233758,
"status": "ok",
"msg": "success"
}Field highlights you’ll actually use:
- link: Direct URL to the generated audio file. Use this to download or stream.
- title: Title of the source YouTube video (useful for filenames or UI labels).
- filesize: Size of the audio file (numeric value as returned by the API).
- duration: Length of the audio clip (numeric value as returned by the API).
- progress: 100 indicates the audio is ready to download.
- status and msg: Quick success/error check.
Python example: fetch and persist the audio URL
This example calls the same endpoint, validates status/progress, and prints the audio link and metadata. It’s minimal by design so you can paste it into a script or job.
import os
import requests
API_KEY = os.getenv("ZYLALABS_API_KEY", "YOUR_API_KEY")
VIDEO_ID = "p-Z3YrHJ1sU"
url = "https://zylalabs.com/api/1812/youtube-video-to-audio-api/5870/get-audio"
headers = {
"Authorization": f"Bearer {API_KEY}"
}
params = {
"id": VIDEO_ID
}
resp = requests.get(url, headers=headers, params=params, timeout=60)
resp.raise_for_status()
data = resp.json()
# Basic health checks
if data.get("status") != "ok" or data.get("progress") != 100:
raise SystemExit(f"Conversion not ready or failed: {data}")
audio_link = data.get("link")
title = data.get("title")
duration = data.get("duration")
filesize = data.get("filesize")
print("Audio URL:", audio_link)
print("Title:", title)
print("Duration:", duration)
print("Filesize:", filesize)
# Optional: download to a local file (streaming)
if audio_link:
r = requests.get(audio_link, stream=True, timeout=120)
r.raise_for_status()
# Derive a simple filename from the title; customize as needed.
filename = "output.mp3"
with open(filename, "wb") as f:
for chunk in r.iter_content(chunk_size=8192):
if chunk:
f.write(chunk)
print("Saved:", filename)Real-world integration notes
- Video length: The endpoint is designed for videos approximately 5 minutes or less. Enforce this constraint in your UI or job layer before calling the API.
- Idempotency by YouTube ID: If you expect repeated requests for the same clip, cache by the YouTube video ID. You can also persist the returned link if your workflow downloads immediately.
- Progress handling: The response includes a progress field. In the example shown it’s 100 when the audio is available. For simple flows, call once and proceed when progress equals 100.
- Retries and backoff: For background jobs, add retries on transient network errors when calling the Zyla Hub endpoint and when downloading from the returned link.
- Content handling: Use the title field to label files or UI rows. Sanitize for filenames when writing to disk.
Use cases you can ship fast
- Clip-to-audio buttons in editorial tools: Paste a YouTube ID, click Convert, get a streaming URL back.
- Automated preview generation: For short media submissions, convert to audio for fast moderation queues.
- Audio archivist for short-form content: Periodically ingest a set of channel video IDs and store audio artifacts.
- Transcription pre-processing: Convert short videos to audio prior to passing to your speech-to-text pipeline.
Calling via AI agents using MCP
If you use Claude Code, Cursor, Windsurf, or another MCP-compatible client, you can let the agent call Zyla APIs by routing requests through the MCP gateway. Point the client at the MCP endpoint and pass your API key:
- Gateway: https://mcp.zylalabs.com/mcp?apikey=YOUR_API_KEY
From there, instruct your agent to make a GET request to the exact Hub endpoint shown above, include the Authorization header with your key, and provide the id query parameter. For security, keep your API key in the agent’s secret store and avoid logging sensitive headers.
Operational tips
- Headers: Always send Authorization: Bearer YOUR_API_KEY to the Zyla Hub endpoint.
- Timeouts: Network time varies; configure sensible timeouts for both the API call and the subsequent file download.
- Storage: If you need persistent access, download the file when you receive the link and store it in your storage bucket. Do not assume third-party links are permanent.
- Monitoring: Log status, msg, and progress values to spot failures early in batch or queue workers.
- Quotas: The hub uses a subscription + quota model. Track your usage; if you expect spikes, review your plan on the listing page.
End-to-end flow you can implement today
- Get an API key from the listing page and store it in your config or secrets manager.
- Accept a YouTube video ID in your UI or job queue. Validate length constraints upstream when you can.
- Call GET https://zylalabs.com/api/1812/youtube-video-to-audio-api/5870/get-audio with the id parameter and Authorization header.
- Check that status == "ok" and progress == 100.
- Consume the link for download or streaming. Save to your storage if you need durable access.
- Use title, duration, and filesize for UI, logging, and QA signals.
FAQ
What parameter do I pass to convert a video?
Pass the YouTube video ID using the id query parameter (example: p-Z3YrHJ1sU) to the Get Audio endpoint.
What is the endpoint URL and method?
GET https://zylalabs.com/api/1812/youtube-video-to-audio-api/5870/get-audio
How do I authenticate?
Include the header Authorization: Bearer YOUR_API_KEY on every request to the Zyla Hub endpoint.
Is there a video duration limit?
Yes. Videos should be approximately 5 minutes or less in length.
What does progress mean?
The response includes a numeric progress field. A value of 100 indicates the audio is ready to download.
Ship it
You only need one GET request to convert a YouTube video ID into a downloadable audio link. Create your account, grab an API key, and wire it into your media workflow today via the listing page: Start 7-day trial on Youtube Video to Audio API.
