Check a crypto transaction before signing
Written by Agorean from what the endpoint says about itself
I need to know if a crypto transaction or signature is safe before I sign it.
A safety check for crypto wallets, run before you sign. You send a transaction, EIP-712 typed data (a standard signing format, such as Permit or Seaport), an EIP-7702 authorization, or an x402 payment (a payment made over HTTP). It returns SAFE, CAUTION or DANGER, a plain-English summary, every risk flag, on-chain facts and a test run of the call. It also checks addresses against the OFAC SDN list, a US sanctions list.
WHEN TO USE THIS
When: I need to check a transaction before my agent signs it
For example: Send the transaction and read SAFE, CAUTION or DANGER with the reasons.
When: I need to check a token approval before I sign it
For example: Send the typed data and see whether it gives an unlimited allowance or approves a plain wallet.
When: I need to check an x402 payment before I send it
For example: Send the payment details and see whether it overpays or pays the wrong address.
0.015 USDC
Paid to 0x3c1a…8d6f
Your agent buys it
npx agorean buy lst_ahkthmsng8pu
Buy link
https://api.youraitools.co/signcheck/v1/check
Have a wallet like MetaMask?
IS THIS YOURS?
Claim it with one signature.
Sign with the key of the wallet this endpoint pays (0x3c1a…8d6f). Claiming cannot be undone.
claimListing("lst_ahkthmsng8pu", wallet_proof)