Crypto Wallet Checker Scam address lookup for Bitcoin and Ethereum
About to send funds, or asked to? Check the address first. isMalicious matches wallet addresses against scam blacklists built from phishing-drainer and fraud campaigns, and returns a verdict with the evidence — free, no signup.
curl -d "email=you@example.com" https://ismalicious.com/api/keys/instant50 free requests/month · instant API key · no signup form
BTC
Bitcoin Support
ETH
Ethereum Support
Drainer
Campaign Intel
Bulk
API Screening
Key features. Everything you need to protect your infrastructure and users.
Scam Address Blacklists
Addresses are checked against curated blacklists of wallets collecting funds from phishing drainers and fraud schemes.
Campaign Infrastructure Links
Scam wallets are tied to the phishing domains and fake-airdrop sites that feed them, when known.
Paste the Whole Pitch
Drop the full scam message into the lookup — the wallet, the site, and the contact details are extracted and checked together.
Format-Aware Matching
Bitcoin and Ethereum address formats are detected automatically; 0x addresses are normalized so case differences never miss a match.
API-First Workflow
Screen withdrawal targets, deposit sources, and support-ticket addresses in bulk over REST.
Evidence, Not Just a Score
Every verdict names its sources — a reported drainer address reads differently from a merely unknown one.
Use cases. How security teams use this tool.
Before You Send
Check the address from an invoice, a “support agent”, or an investment pitch before funds move.
Exchange and Wallet Screening
Flag withdrawals to known scam addresses at transaction time.
Drainer Campaign Response
Enrich phishing reports with the collection wallets and the sites feeding them.
Victim Report Triage
Confirm whether a reported address is already known before opening an investigation.
How to check a crypto wallet address for scams
Crypto payments are irreversible, which makes the check before sending the only one that matters. Scam campaigns reuse collection addresses across thousands of victims — phishing drainers, fake airdrops, romance and investment fraud all funnel to a finite set of wallets. Matching an address against scam blacklists answers in seconds whether it is already known.
Reputation lookup vs. blockchain forensics
A reputation lookup answers whether an address has been reported in scam activity. Blockchain forensics traces the movement of funds across the chain. The first is instant and free, and it is the right tool before a transaction; the second is for investigating what happened after one.
The wallet is the durable indicator
Scam sites and social accounts rotate daily; the wallets that collect the money rotate much slower, because moving them costs the attacker liquidity and coordination. That makes the address the strongest single indicator in a crypto scam — check it even when the site looks fresh and unreported.
Automating wallet screening over the API
Exchanges and wallet providers can screen withdrawal targets in real time; fraud teams can batch-check addresses from tickets and reports; trust-and-safety pipelines can combine the wallet verdict with the URL and email checks around the same case, all over the same REST API.
Frequently asked questions.
How do I check if a crypto wallet address is a scam?
Which address formats are supported?
Can this trace where funds went?
Can I check wallet addresses through the API?
Related tools.
Scam and sanctioned wallet addresses
Every wallet address with a published report: the sanctions, ransomware and scam lists that name it.
URL Scanner
Check the site asking for funds
Email Checker
Scam email address lookup
Phone Checker
Scam phone number lookup
Before you send crypto: how to spot the scam
Check the address, the platform and the reason you are asked to pay: a crypto payment rarely comes back.
Sextortion email demanding bitcoin: what to do
A bluff sent in bulk: don’t pay or reply, change any password it quotes, report it.
Related articles. Learn more from our security research blog.
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