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fastapi.online — Media Download (URL/Magnet to Binary)
x402
fastapi.online — Media Download (URL/Magnet to Binary) is a paid API for AI agents from api.fastapi.online, paid per call via x402, $0.02/call, status down (last checked 2026-09-15).
Downloads media (video, audio, image, or magnet-linked content) from a public URL or magnet link and returns the binary stream
Price / call$0.02
Success—
StatusDown
How this service works
Self-hosted AI API gateway. Expensive endpoints require an x402 micropayment (USDC on Base) before executing.
Output
A binary stream of the requested media file (video, audio, or image). The response is raw binary content, suitable for saving to disk or piping into further processing steps.
Example use cases
Archive a public video file
“Grab the video at https://archive.org/download/sample/sample.mp4 and download it for me as 'archive-sample.mp4' — use type 'video'.”
Fetch remote image for processing
“Download the image from https://upload.wikimedia.org/wikipedia/commons/thumb/4/47/PNG_transparency_demonstration_1.png/200px-PNG_transparency_demonstration_1.png as type 'image' and save it as 'demo.png'.”
Download audio from magnet link
“Pull the audio content from this magnet link — magnet:?xt=urn:btih:EXAMPLEHASH&dn=podcast.mp3 — set the type to 'audio' and filename to 'podcast.mp3'.”
Technical details
Endpoint
POSThttps://api.fastapi.online/downloadWhen to prefer
Use this endpoint when you need to programmatically fetch a media file (video, audio, or image) from a known public URL or magnet link and receive the raw binary content — especially when you want a pay-per-call, no-signup approach via crypto. Prefer this over general HTTP fetch tools when magnet link support or media-type-aware downloading is needed.
Side effects
- URL is not publicly accessible or returns a non-200 status — download fails
- Magnet link has no seeders or content is unavailable — timeout or empty result
- URL points to non-media content — may return unexpected binary or error
- File too large — may time out or exceed server limits
- Invalid or malformed URL/magnet string — validation error returned
- Unsupported media type at the given URL — type mismatch error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": "<binary stream>"
}Tags
x402
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