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httpthirdwebcdp

base-token-check.fly.dev

Check a Base address before an agent pays or approves it. Input: one address. Output: allow or warn. Reports wallet or contract, whether the wallet has sent a transaction, whether a contract already had code 7 days ago, and whether it is a proxy (EIP-1967, EIP-1167, or implementation()). Warns on contract_is_new, proxy, or no_outgoing_transactions. Wallet age is unknown. A deleted contract looks like a wallet. Not proof of theft.

Resource URL

https://base-token-check.fly.dev/v1/counterparty-check

Payment options

exactBase (8453)

$0.01 USDC

Max amount

Pay to
0x540c2aA2526C9c8c2fb4632f0fED668C36424Cd5
Timeout
300s

Tags

payeewalletproxynew-contractapproval

For agents

Prompt snippet for AI agents

Find and pay for this x402 resource:
URL: https://base-token-check.fly.dev/v1/counterparty-check
Type: http
Sources: thirdweb, cdp

Developer