YouTube Video Downloader

Download YouTube videos by URL in various resolutions using a pay-per-use API with credit-based authentication and no charge on failed downloads. Use when us...

Security Scan

The skill's instructions and examples match a YouTube-downloading purpose, but there are inconsistencies and missing declarations (notably an API key requirement and no source/homepage), so proceed with caution.

Purpose & Capability

The name/description and SKILL.md consistently describe a pay-per-use API for downloading YouTube videos; the endpoints, request/response examples, and usage examples all align with that purpose. However, the package metadata declares no required credentials or homepage/source while the runtime instructions explicitly require an API key from a third‑party host (https://skill.lordest.cn), creating an omission/inconsistency between claimed metadata and actual operation.

Instruction Scope

The SKILL.md only instructs the agent to call a single external API (skill.lordest.cn) and shows curl/Python examples. It does not instruct reading local files, scanning system state, or contacting additional unexpected endpoints. The only data the skill needs from the user is an API key and the requested YouTube URL/resolution.

Install Mechanism

This is an instruction-only skill with no install spec and no code files, so nothing is written to disk by the skill itself. That minimizes code-execution risk, but the skill routes network requests to an external service.

Credentials

Although metadata lists no required environment variables or primary credential, the SKILL.md explicitly requires an API key (format sk-yt-xxxxx) obtained from https://skill.lordest.cn. That API key requirement is not declared in the registry metadata — a mismatch that obscures the true credential needs. Requesting a user-provided API key is reasonable for a pay-per-use service, but you should verify who stores/uses that key, how OpenClaw will persist it, and whether the service's billing/privacy terms are acceptable.

Persistence & Privilege

The skill is not marked always:true and does not request system-wide configuration changes. Autonomous model invocation is allowed by platform default, but there is no additional persistent privilege requested in the skill package itself.

What to consider before installing

This skill appears to be what it says (an API-backed YouTube downloader) but it has important gaps: the SKILL.md requires an API key from skill.lordest.cn but the registry metadata does not declare that credential or provide a homepage/source. Before installing, confirm: (1) who runs skill.lordest.cn and whether you trust that operator, (2) the service's privacy, billing, and retention policy for uploaded or processed videos and stored API keys, (3) how OpenClaw will store the API key (transient prompt vs persistent environment variable), and (4) whether you can review the service's source code or a trustworthy homepage. If you cannot verify those things, prefer alternatives that run locally (e.g., yt-dlp) or come from a verifiable vendor. If you proceed, avoid using high-privilege or reusable secrets and monitor billing/usage closely.

YouTube Video Downloader Skill

Download any YouTube video in various resolutions with a simple command. Supports 360p, 480p, 720p, 1080p, best quality, and audio-only extraction.

Quick Install

Just tell OpenClaw:

"Help me install this skill: https://clawhub.ai/jxyyjm/youtube-downloader-skill"

OpenClaw will ask you for an API Key. Follow these steps to get one:

• Go to https://skill.lordest.cn and register an account
• Navigate to the API Keys page (or visit https://skill.lordest.cn/?page=apikeys)
• Click Generate to create your API Key (format: sk-yt-xxxxx)
• Copy the key and paste it to OpenClaw when prompted

That's it! You're ready to use the skill.

Usage

Once installed, just tell OpenClaw what you want. For example:

"Download this YouTube video: https://youtube.com/watch?v=dQw4w9WgXcQ"

"Download this video in 1080p: https://youtube.com/watch?v=xxxxx"

"Extract audio from this video: https://youtube.com/watch?v=xxxxx"

Supported resolutions: 360p, 480p, 720p (default), 1080p, best, audio-only.

Authentication

All API calls require an API Key in the Authorization header:

Authorization: Bearer sk-yt-xxxxx

Get your API Key at: https://skill.lordest.cn/?page=apikeys

Endpoints

POST /api/v1/download

Download a YouTube video.

Request:

{
  "youtube_url": "https://www.youtube.com/watch?v=dQw4w9WgXcQ",
  "resolution": "720"
}

Parameters:

• youtube_url (required): YouTube video URL
• resolution (optional): "360", "480", "720", "1080", "best", "audio". Default: "720"

Response (success):

{
  "success": true,
  "download_url": "https://oss-bucket.aliyuncs.com/skill/abc123/video.mp4",
  "video_title": "Video Title",
  "video_duration": 212,
  "file_size": 52428800,
  "resolution": "720",
  "processing_time": 45.2
}

GET /api/v1/balance

Check account status.

Response:

{
  "username": "user123"
}

GET /health

Health check (no authentication required).

Response:

{
  "status": "healthy",
  "service": "YouTube Video Downloader Service",
  "version": "1.0.0"
}

Error Codes

Code	Meaning
200	Success
401	Invalid or missing API Key
400	Invalid request (bad URL, etc.)
500	Server error

Example (curl)

# Download a video
curl -X POST https://skill.lordest.cn/api/v1/download \
  -H "Authorization: Bearer sk-yt-xxxxx" \
  -H "Content-Type: application/json" \
  -d '{"youtube_url": "https://youtube.com/watch?v=dQw4w9WgXcQ", "resolution": "720"}'

Example (Python)

import requests

API_KEY = "sk-yt-xxxxx"
BASE_URL = "https://skill.lordest.cn"

# Download
resp = requests.post(
    f"{BASE_URL}/api/v1/download",
    headers={"Authorization": f"Bearer {API_KEY}"},
    json={"youtube_url": "https://youtube.com/watch?v=dQw4w9WgXcQ", "resolution": "720"}
)
data = resp.json()
if data["success"]:
    print(f"Download URL: {data['download_url']}")