615 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.
Decode a JWT and verify its signature with the public keys of a JWKS URL (RS256, ES256, EdDSA...) or an HMAC secret, checking expiry, audience and issuer; returns header, claims and the exact reason if invalid. Tokens ar...
Invisible bot protection. Score form submissions 0-100 based on behavioral signals. No CAPTCHAs.
Full-history address-poisoning check before you send USDC on Base. Same risk/lookalike/seenBefore logic as /address/check, but funding history comes from ONE Blockscout index call (x402, up to the sender's 500 most recen...
Checks whether a URL/domain is safe to fetch, cite, or follow: flags phantom-squatted or typosquatted brand domains, unregistered or brand-new domains, and known malicious infrastructure (URLhaus). Returns an ALLOW/WARN/...
Offline transaction and signature safety check API for crypto wallets. Offline pre-sign check (no RPC, fast): decodes a transaction, EIP-712 typed data (Permit, Permit2, EIP-3009), an EIP-7702 authorization or an x402 40...
Run a low-cost token security audit and honeypot check using current automated GoPlus risk fields for a supported EVM contract. These third-party signals are not a guarantee of safety.
Decode an EVM signature request (EIP-712 typed data, Permit/Permit2, or ERC-20 approve calldata) into a structured intent: what token, which spender, how much, until when, plus risk_flags and an action_hint. Deterministi...
Live DNS lookup for a domain: returns name, type and records[]. Supported record types: A, AAAA (addresses as strings), MX ({exchange, priority} objects), TXT (each record an array of its strings), NS and CNAME (hostname...
Proxy implementation, Arbitrum. Find the implementation behind a proxy contract on Arbitrum One: reads the EIP-1967 implementation, beacon and admin slots, EIP-1822 (UUPS), the older OpenZeppelin layout and EIP-1167 mini...
Proxy implementation, Base. Find the implementation behind a proxy contract on Base: reads the EIP-1967 implementation, beacon and admin slots, EIP-1822 (UUPS), the older OpenZeppelin layout and EIP-1167 minimal-proxy by...
Proxy implementation, Ethereum. Find the implementation behind a proxy contract on Ethereum: reads the EIP-1967 implementation, beacon and admin slots, EIP-1822 (UUPS), the older OpenZeppelin layout and EIP-1167 minimal-...
Proxy implementation, Optimism. Find the implementation behind a proxy contract on Optimism: reads the EIP-1967 implementation, beacon and admin slots, EIP-1822 (UUPS), the older OpenZeppelin layout and EIP-1167 minimal-...
Proxy implementation, Polygon. Find the implementation behind a proxy contract on Polygon PoS: reads the EIP-1967 implementation, beacon and admin slots, EIP-1822 (UUPS), the older OpenZeppelin layout and EIP-1167 minima...
Arbitrum One contract check. Check whether a 0x address on Arbitrum One is a smart contract or a plain wallet: bytecode size, and whether it is an EIP-1167 minimal proxy and which implementation it points to. Use before...
Base contract check. Check whether a 0x address on Base is a smart contract or a plain wallet: bytecode size, and whether it is an EIP-1167 minimal proxy and which implementation it points to. Use before sending funds or...
Ethereum contract check. Check whether a 0x address on Ethereum is a smart contract or a plain wallet: bytecode size, and whether it is an EIP-1167 minimal proxy and which implementation it points to. Use before sending...
Optimism contract check. Check whether a 0x address on Optimism is a smart contract or a plain wallet: bytecode size, and whether it is an EIP-1167 minimal proxy and which implementation it points to. Use before sending...
Polygon PoS contract check. Check whether a 0x address on Polygon PoS is a smart contract or a plain wallet: bytecode size, and whether it is an EIP-1167 minimal proxy and which implementation it points to. Use before se...
TLS certificate of a domain: whether it is valid, issuer, subject, valid-from and expiry dates, days left, all SAN hostnames, TLS version and cipher. Use for uptime/expiry monitoring or security checks.
Build the transaction that revokes a contract's permission over an ERC-20 token (approve(spender, 0)): target and calldata ready to sign in your wallet. Nothing is sent.
Vulnerabilities being actively exploited according to CISA's KEV catalog: CVE, vendor, product, name, description, date added, remediation due date and ransomware use; the latest N days or search by vendor/product (Micro...
NPM package info API: package registry lookup for npm, PyPI and Cargo with latest version, age, license, deprecation, weekly downloads and OSV vulnerabilities. Dependency check before install.
Crypto sanctions screening API (OFAC). Sanctions screen for one crypto address, for agents and apps that send payments: exact match against all 1050 digital currency addresses in the official US Treasury OFAC SDN list (E...
Generate cryptographically random passwords.