token-check.yukikawata.workers.dev

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "error": "payment required",
  "price": "$0.01",
  "example": {
    "chain": "base",
    "flags": [
      {
        "code": "can_mint",
        "message": "New tokens can be minted.",
        "severity": "medium"
      }
    ],
    "score": 90,
    "address": "0x940181a94A35A4569E4529A3CDfB74e38FD98631",
    "summary": "AERO on Base shows few warning signs. New tokens can be minted. The owner is not active, but another role may hold this power.",
    "verdict": "few warning signs"
  },
  "payment": "x402: read the PAYMENT-REQUIRED header, sign a USDC transfer, retry with a PAYMENT-SIGNATURE header"
}

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x8A1B9bE81A54083a5d81d494e605637979157CC4",
    "scheme": "exact",
    "network": "eip155:8453",
    "mimeType": "application/json",
    "resource": "https://token-check.yukikawata.workers.dev/v1/base/tokens/:address",
    "description": "",
    "maxAmountRequired": "10000",
    "maxTimeoutSeconds": 300
  }
]

Provenance

Seen in the source catalog

2026-09-26 18:02Z

Last indexed by Roundhouse

2026-10-21 18:16Z

Last enriched (probe, favicon, geo)

2026-09-29 20:15Z

x402 version

1

Max timeout

300s

Liveness probe

HTTP 402