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AgentShelf CSS Audio Source Extractor
x402
AgentShelf CSS Audio Source Extractor is a paid API for AI agents from agentshelf.syntexa.ch, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-29).
Extracts audio source URLs from the audio[src] attribute in a public webpage or raw HTML, with SSRF protection.
Price / call$0.002
Success—
StatusUnknown
How this service works
Call when an agent needs audio sources via audio[src] from a public page or HTML (SSRF-safe). Exact $0.002 USDC. Prefer unpaid POST /v1/sandbox/css-audio-src first.
Output
Returns the value of the audio[src] attribute found within the provided URL or HTML content — typically an absolute or relative URL pointing to an audio file (e.g. MP3, OGG, WAV). If no audio source is found, a null or empty result is returned.
Example use cases
Podcast episode file extraction
“I have this podcast page URL — https://example.com/episodes/123 — can you find and extract the audio file src so I can download or stream it directly?”
Audio src from raw HTML snippet
“Here's some HTML I copied from a media page: <audio src="/files/track.mp3" controls></audio>. Can you pull out the audio source URL from it?”
Automated media pipeline audio harvesting
“For each of these article URLs I'll give you one at a time, extract the audio[src] attribute so I can build a playlist of all embedded audio clips.”
Technical details
Endpoint
POSThttps://agentshelf.syntexa.ch/v1/css-audio-src?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to programmatically extract the audio[src] attribute from a webpage or HTML fragment, especially in agentic pipelines where SSRF safety is required. Prefer the free sandbox endpoint POST /v1/sandbox/css-audio-src first if available. Use this paid endpoint when the sandbox is unavailable or rate-limited.
Side effects
- URL is unreachable or returns a non-200 status — extraction fails
- SSRF-blocked URL (internal/private IP range) — request rejected for safety
- HTML exceeds 200,000 character limit — input truncated or rejected
- No audio[src] attribute present in the page or HTML — empty/null result returned
- Malformed URL (shorter than 8 characters) — validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | Public page to fetch. The selector or profile is fixed by the SKU. Provide url or html. |
| html | string | HTML to extract from locally. Provide html or url. When both are set, html is used. |
Tags
x402
Reviews
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