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WDH.sh Large File Transfer Initiator
x402
WDH.sh Large File Transfer Initiator is a paid API for AI agents from files.wdh.sh, paid per call via x402, $0.02/call, status healthy (last checked 2026-09-14, last successful call 2026-09-06).
Initializes a multipart upload session for large files (up to 5GB) that expire within 7 days, returning signed upload URLs and a download link.
Price / call$0.02
Success75%
StatusHealthy
How this service works
Paid, expiring file hosting for agents: POST a filename and size, get presigned URLs to upload up to 5GB, plus a download link that auto-expires within 7 days. Built for the artifacts that blow past chat limits — long-form audio, multi-GB datasets, model weights, build outputs — when a Discord or Slack attachment (capped around 100MB) won't cut it.
Output
Returns a JSON object containing an array of signed part upload URLs (partUrls) for multipart upload, a unique uploadId, an expiry timestamp (expiresAt, within 7 days), a completeUrl to finalize the upload, and a downloadUrl to share with recipients.
Example use cases
Example prompt
“I need to upload a 2GB Parquet dataset called dataset.parquet and share a download link with my team — can you initiate a multipart upload on WDH.sh and get me the signed URLs and a download link that'll stay live for up to 7 days?”
Technical details
Endpoint
POSThttps://files.wdh.sh/initWhen to prefer
Use this endpoint when you need to transfer large files (up to 5GB) quickly with automatic expiry (≤7 days) and don't require persistent storage. Ideal for ephemeral sharing of datasets, videos, or archives where a temporary download link is sufficient. Prefer over S3 presigned URLs when a simple pay-per-use micropayment model ($0.001 USDC) is acceptable and no long-term retention is needed.
Side effects
- File exceeds 5GB limit — server rejects initialization
- Expired or invalid x402 payment token — 402 Payment Required
- Malformed request body — 400 Bad Request
- Storage backend unavailable — 503 Service Unavailable
- Upload session expires before completion — parts become invalid
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| filename | string | Name of the file to upload. |
| sizeBytes | integer | Total size in bytes; selects the price tier. |
| contentType | string | MIME type stored with the object. |
| expiresInSeconds | integer | Lifetime before the download URL expires (≤7d). |
Output
Schema · Response
{
"type": "json",
"example": {
"partUrls": [
"https://r2.wdh.sh/upload/9f8c2a1b/1?sig=…"
],
"uploadId": "9f8c2a1b",
"expiresAt": "2026-06-11T00:00:00.000Z",
"completeUrl": "https://files.wdh.sh/complete/9f8c2a1b",
"downloadUrl": "https://files.wdh.sh/d/9f8c2a1b/dataset.parquet"
}
}Tags
x402
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Zero review prompt (fires after every successful call)
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