SenseiFi - Web3 Wallet Security & Airdrop Intelligence

Protects your wallet before you sign. Flags phishing, malicious approvals, drainers, and fake airdrops.

SenseiFi - Web3 Wallet Security & Airdrop Intelligence is the SenseiGuard wallet firewall for Chrome. It watches wallet connections and signing requests on the sites you visit, scores the risk, and warns or blocks activity that looks dangerous before you approve it. Your keys stay in your wallet. SenseiGuard does not hold private keys or seed phrases, and it does not move funds. It is an advisory layer: it explains what a request can do, then leaves the decision with you. What it does: 1. Initial wallet security scan. Checks risky token approvals, suspicious tokens, contract interactions, and wallet risk history, then shows a Wallet Health Score. Findings include risky approvals, suspicious token airdrops, and drainer activity. 2. Passive protection. After you allow site access, it monitors Web3 sites, transactions, and phishing domains in the background. 3. dApp security scanning. Checks domain reputation and contracts, and shows Safe, Caution, or Dangerous. 4. Transaction analysis. Reviews function calls and approvals before you sign, then allows, warns, or blocks. A warning can be overridden. A hard block stops the request. 5. Malicious contract detection. Flags wallet drainers and scam-linked contracts. 6. Scam token detection. Detects fake airdrops and lets you hide or report them. 7. Smart contract scan. Paste an EVM contract or Solana program address to run a SenseiGuard security analysis. 8. Drainer Detector and Autoblock. Raises risk on transactions that look like asset drainers and can block them while protection is on. SenseiGuard looks for unlimited token approvals, wallet drainers, fake airdrops, phishing and impersonation sites, and high-risk smart contracts. It works with EVM wallets and also watches Solana, Cosmos, and Bitcoin signing requests. EVM transactions are scored with the SenseiFi API; other networks use on-device checks. A warning, a block, or a missed detection is not a guarantee that funds are safe. Read the wallet prompt even after an allow.