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tempfile.0000402.xyz File Upload
x402
tempfile.0000402.xyz File Upload is a paid API for AI agents from tempfile.0000402.xyz, paid per call via x402, $0.02/call, status healthy (last checked 2026-09-14, last successful call 2026-08-19).
Stores a base64-encoded file for 7 days and returns a stable retrieval URL and token, costing $0.02 USDC per upload.
Price / call$0.02
Success62%
StatusHealthy
How this service works
Pay $0.02 USDC to store a file for 7 days. Send filename, optional content_type, and base64-encoded file bytes as JSON. Max file size: 10 MB. Returns a token and a stable GET URL. Network: Base Mainnet. Each request stores one file and returns a retrieval token plus expiry timestamp.
Output
Returns a JSON object with a stable GET URL path (e.g. /file/{uuid}), a retrieval token (UUID), a human-readable confirmation message stating the expiry date, the original filename, the expiry timestamp in ISO 8601 format, the file size in bytes, and the detected or provided content type.
Example use cases
Example prompt
“Store this PDF file called 'invoice_april.pdf' for me temporarily — I'll give you the base64 content — and send back the URL I can use to retrieve it for the next 7 days.”
Technical details
Endpoint
POSThttps://tempfile.0000402.xyz/uploadWhen to prefer
Use this endpoint when an agent needs to temporarily host a file (up to 10 MB) and obtain a stable, publicly accessible GET URL valid for exactly 7 days, at a cost of $0.02 USDC per upload on Base Mainnet. Ideal for agentic workflows that need to pass file URLs between steps, share generated content, or stage documents without permanent storage infrastructure.
Side effects
- File exceeds 10 MB limit — server returns an error rejecting the upload
- Invalid or missing base64 data — malformed request body causes a 400-level error
- Missing required filename field — request rejected
- Payment not fulfilled — x402 payment protocol not satisfied, request blocked
- Expired token used for retrieval — file no longer available after 7-day window
- Unsupported content type — may cause unexpected storage behavior
Input
{
"filename": "test_document.txt",
"data_base64": "VGhpcyBpcyBhIHRlc3QgZmlsZSBjb250ZW50Lg==",
"content_type": "text/plain"
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| filename | string | Original filename including extension (max 200 chars). Used for download naming and content-type detection. |
| data_base64 | string | Base64-encoded file bytes for this upload. Decoded size must not exceed 10 MB. |
| content_type | string | Optional MIME type such as 'image/png' or 'application/pdf'. If omitted, the server detects it from the filename extension. |
Output
{
"url": "/file/348c867e-c274-4d8f-84b7-397349294026",
"token": "348c867e-c274-4d8f-84b7-397349294026",
"message": "File stored. Available at GET /file/348c867e-c274-4d8f-84b7-397349294026 for 7 days (until 2026-06-05T20:40:06+00:00).",
"filename": "test_document.txt",
"expires_at": "2026-06-05T20:40:06+00:00",
"size_bytes": 28,
"content_type": "text/plain"
}Schema · Response
{
"type": "json",
"example": {
"url": "/file/a1b2c3d4-e5f6-7890-abcd-ef1234567890",
"token": "a1b2c3d4-e5f6-7890-abcd-ef1234567890",
"message": "File stored. Available at GET /file/a1b2c3d4-e5f6-7890-abcd-ef1234567890 for 7 days.",
"filename": "chart.png",
"expires_at": "2026-03-10T13:00:00+00:00",
"size_bytes": 12345,
"content_type": "image/png"
}
}Tags
x402
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