Echotik Get Video Download Url

解析TikTok视频地址，返回该视频的无水印/含水印下载地址、播放地址与封面地址，用于保存带货视频素材或离线分析。当用户提到TikTok视频下载、TikTok去水印下载、TikTok视频保存、下载TikTok带货视频、TikTok无水印视频、TikTok video download, download TikTok video, no watermark TikTok video, save TikTok video, TikTok video link解析时触发此技能。即使用户未明确提及"EchoTik"，只要其需求涉及从一个TikTok视频链接取出可下载/可播放的视频地址，也应触发此技能。

EchoTik TikTok Video Download

This skill guides you on how to resolve a TikTok video URL into direct download and playback links, helping sellers save influencer/promotional video assets for offline analysis or reuse.

Core Concepts

This tool takes a single TikTok video URL and resolves it to direct media addresses: a no-watermark download URL (preferred for clean assets), a watermarked download URL, a playback URL, and cover images (static and dynamic). This is useful when a seller wants to archive a high-performing promotional video found via the EchoTik product-video tool, or reuse a creator's clip without re-recording.

Required input: A url is mandatory. Two URL formats are accepted:

• Short link: https://vt.tiktok.com/xxxxxx
• Full link: https://www.tiktok.com/@user/video/1234567890

Conditional download URLs: Not every video returns a downloadable address. noWatermarkDownloadUrl and downloadUrl are returned only when the source video allows it; for some videos (region/privacy/availability restricted) both are absent and only playUrl plus cover images come back. Always check presence before presenting a download link, and fall back to playUrl for playback when the download fields are missing.

URL freshness: The returned download/playback addresses may expire over time. Use them promptly after resolving, and re-resolve if a link stops working.

Parameter Guide

Parameter	Type	Required	Description	Default
url	string	Yes	TikTok video URL (short link vt.tiktok.com/xxx or full link tiktok.com/@user/video/xxx). Max length 1000	-

API Usage

This tool calls the LinkFox tool gateway API. See references/api.md for calling conventions, request parameters, and response structure. You can also execute scripts/echotik_get_video_download_url.py directly to run a resolution.

Usage Examples

1. Resolve a full TikTok video link

json

{
  "url": "https://www.tiktok.com/@user/video/1234567890"
}

2. Resolve a TikTok short link

json

{
  "url": "https://vt.tiktok.com/Z123abc/"
}

Display Rules

1. Present the no-watermark link first: When noWatermarkDownloadUrl is present, surface it as the primary download option, since clean assets are usually what sellers want
2. Offer the watermarked variant: Also list downloadUrl (watermarked) when present, in case the user wants the original branding
3. Handle missing download URLs: When both noWatermarkDownloadUrl and downloadUrl are absent (common for some videos), do not fabricate a download link — tell the user the video has no direct download address and offer playUrl for playback/preview instead
4. Provide playback + cover: Mention playUrl for quick preview and coverUrl / dynamicCoverUrl for thumbnails
5. Freshness caveat: Remind the user that the resolved URLs may expire and should be downloaded promptly
6. Present data only: Show the resolved addresses clearly without subjective advice on how to use the video
7. Error handling: When resolution fails, explain the reason based on errcode/errmsg — 400 means a missing/invalid url, 10000 means the link is not a valid/accessible TikTok video; suggest checking the URL format

User Expression & Scenario Quick Reference

Applicable Scenarios

User Says	Scenario
"Download this TikTok video" / "Save this TikTok clip"	Resolve a video URL into download links
"Get the no-watermark version of this TikTok video"	Prioritize noWatermarkDownloadUrl
"I want to save this influencer's promo video"	Resolve and archive a creator's video
"Give me a playable link for this TikTok video"	Return playUrl
"Get the cover/thumbnail of this TikTok video"	Return coverUrl / dynamicCoverUrl

Not Applicable Scenarios

• Listing promotional videos associated with a TikTok product (use linkfox-echotik-product-video instead — it needs a productId, not a video URL)
• Searching for TikTok products (use linkfox-echotik-product-search)
• TikTok new product rankings (use linkfox-echotik-new-product-rank)
• TikTok live-stream data
• Video editing or content creation advice
• Non-TikTok platform video downloads

Boundary Judgment

When users mention "TikTok video", determine whether they already have a specific video URL they want to download (this skill) or want to discover videos linked to a product (the product-video skill). If the user provides a tiktok.com or vt.tiktok.com link and asks to save/download/extract it, this skill applies. If they mention a product ID and ask "what videos promote this product", use linkfox-echotik-product-video instead.

Feedback:

Auto-detect and report feedback via the Feedback API when any of the following apply:

1. The functionality or purpose described in this skill does not match actual behavior
2. The skill's results do not match the user's intent
3. The user expresses dissatisfaction or praise about this skill
4. Anything you believe could be improved

Call the feedback API as specified in references/api.md. Do not interrupt the user's flow.

Handling Large Responses

To avoid overflowing the agent context, persist the response to disk and extract only the fields you need:

text

python scripts/response_io.py run --script scripts/echotik_get_video_download_url.py --out-dir <DIR> '<params>'
python scripts/response_io.py read <file> --fields "<paths>"   # or --path "<JMESPath>"

Pick --out-dir outside any git working tree (e.g. /tmp/... on Unix, %TEMP%/... on Windows). Persisted responses may contain PII, pricing, or auth-sensitive data — do not commit them. Files are not auto-deleted; clean up when the task is done.

run writes the full response to a file and emits only a schema preview + file path. read projects specific fields, with --limit/--offset for slicing and --format json|jsonl|csv|table for output.

When to prefer this pattern — apply your judgment based on the response characteristics, e.g.:

• High field count per record, or fields you don't need
• Batch/paginated results (multiple items per call)
• Long-text fields (descriptions, reviews, HTML, time series)
• Output reused across later steps rather than consumed immediately

For small, single-use responses, calling the main script directly is fine.

⚠️ The preview is a truncated schema + sample, not the full data. Any field-level decision must read from the persisted file via read.

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