COUNTERPARTY CHECK · SOURCES NAMED · NEVER "SAFE"

Check the wallet
before you send.

OFAC sanctions screening, malicious-address flags and a live on-chain profile for any EVM address — returned as a plain recommendation your agent can branch on: do_not_transact, review_before_transacting or no_red_flags_found. Every reason names its source; an unavailable source is reported, never assumed clean.

Check an address → API docs llms.txt

FREE SANCTIONS CHECK

Is it on the OFAC list?

Paste any address — EVM, Tron, Bitcoin, Solana. Exact match against every digital-currency address the US Treasury publishes. No signup, no key.

THE FULL CHECK

Three sources, one answer

OFAC SDN

US Treasury sanctions list, refreshed every 6 hours, with sanctioned entity, program and the list's publish date.

Malicious-address flags

GoPlus Security: phishing, drainers, laundering, cybercrime, mixers, honeypot-linked deployers, dark-web activity.

Live on-chain profile

EOA, contract or EIP-7702 delegated; nonce, balance, ENS, first transaction, contract verification — across Ethereum, Base, Arbitrum, Optimism, Polygon.

USE IT

One call before every payment

curl "https://wallet.wickedapi.com/v1/wallet-check?address=0x…&chain=base"
→ { "data": {
    "risk_level": "blocked",
    "recommendation": "do_not_transact",
    "reasons": [
      { "severity": "critical", "source": "ofac", "signal": "ofac_sdn_match",
        "detail": "Listed on the OFAC SDN list as …" },
      { "severity": "high", "source": "goplus", "signal": "stealing_attack", … } ],
    "coverage": { "checked": ["ofac","goplus","onchain"], "unavailable": [] },
    "profile": { "account_type": "eoa", "nonce": 11, "first_transaction_at": "…" } } }

Call with no key and you'll get an x402 payment challenge: $0.005 USDC on Base per check, no signup. The sanctions check above is free forever. Also available from the unified Wicked MCP server.