402.com.tr x402 proxy-check

https://402.com.tr/api/x402/proxy-check

payable

Reads the EIP-1967 proxy slots live: is the contract upgradeable, what's the current implementation, and WHO can upgrade it. Flags the dangerous case — an EOA admin that can swap the logic at any block with no timelock/multisig. Upgradeability is a rug vector static scans miss.

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.

Price: $0.03
Network: base
Pay to: 0x973a31858f4d2125f48c880542da11a2796f12d6
Spec dialect: v2 (declares x402Version 2)
Transport: PAYMENT-REQUIRED header
HTTP method: GET
Response latency: 543 ms
Payment options: 1 usable of 1
Last checked: 2026-08-10T09:11:54.673Z (1d ago)
Category: finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2F402.com.tr%2Fapi%2Fx402%2Fproxy-check"