the402 endpoint detail

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img402.dev api upload

https://img402.dev/api/upload

answers 402

Upload an image with payment and get a public URL. Accepts multipart form-data (field 'image') or JSON {"file": "<base64>"}. 10MB max, permanent hosting (no expiration). PNG, JPEG, GIF, WebP.

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.01
Network
base
Pay to
0x77f3c9bCb898Ad1d30e9a336E2cC3108d88D6c09
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
146 ms
Payment options
2 usable of 2
Last checked
2026-08-15T14:28:00.195Z (1h ago)
Category
media

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fimg402.dev%2Fapi%2Fupload"