4-Byte Selector Decoder x402 REST usage
Resolves a 4-byte function selector (e.g. 0x70a08231) to candidate human-readable signatures via 4byte.directory. Accepts a bare selector or full calldata.
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Resolves a 4-byte function selector (e.g. 0x70a08231) to candidate human-readable signatures via 4byte.directory. Accepts a bare selector or full calldata.
Email validation API. Checks whether a string is a syntactically valid email address using the same production-grade validation library trusted across the Node.js ecosystem, catching edge cases a quick regex misses. Retu...
SendCheck: pre-send verification of any EVM address on one chain (EIP-55 checksum, wallet-vs-contract, outgoing activity, balances, verdict). POST {address, chain}
SendCheck: pre-send verification of any EVM address on one chain (EIP-55 checksum, wallet-vs-contract, outgoing activity, balances, verdict). POST {address, chain}
DNSSEC health check: reports whether a domain is DNSSEC-signed (DNSKEY), has a DS record at the parent, and whether the resolver authenticated the answer, with advisory warnings.
Real-time BTC/USD price feed oracle. Retrieves live spot rate, 24h high/low, and volume directly from Coinbase Exchange.
Search public Certificate Transparency logs for every cert issued to a domain. Two independent public CT search services are queried, the second only if the first is slow or fails, and `source` names the one that answere...
Site snapshot (SEO + security + tech + email): All four quick checks in one call for a website: on-page SEO score and issues, security headers/TLS grade, tech stack, and the domain's SPF/DKIM/DMARC email authentication....
Security headers check, HTTP. Fetch a public URL and grade its HTTP security headers: HSTS, Content-Security-Policy, framing protection, nosniff, Referrer-Policy and Permissions-Policy, plus version leaks (Server, X-Powe...
Domain lookup, trust verdict. A trust verdict for any domain in one call: high/medium/low trust with named flags for very new registrations, expiry, missing or weak SPF and DMARC, too few nameservers, no web host and non...
Trending token pools right now on Solana, or any supported chain via chain= - price, liquidity, 24h volume, price change and pool age
CVE lookup - description, status, CVSS metrics, weakness ids and references
Batch Solana token rug check: up to 10 mints in one paid call (half the per-token price). Same output as /v1/check. Query: ?addresses=mint1,mint2,...
Security audit for an EVM token: rug-pull, honeypot, and trading risk signals.
A pre-payment gate for an agent about to send USDC. Screens the recipient (OFAC sanctions, Coinbase/Basename identity, wallet vs contract, fresh-address age) and escalates a fresh or anonymous recipient to STOP once the...
Status of every Bitcoin Improvement Proposal as JSON: number, layer (consensus soft fork, peer services, applications), title, type and status (Draft, Complete, Deployed, Closed...), with links. Parsed live from the bitc...
Smart contract verification and security analysis on Ethereum Base BSC Arbitrum Polygon
Generates a temporary disposable inbox address using the free 1secmail.com service.
Is this token a scam? Token due diligence in ONE call ({"address":"0x...","symbol":"SYM"}): on-chain security verdict (honeypot + rug pull signals) fused with a web scam/rug/honeypot mention search, returned as one verdi...
Agent Reputation Check by Agentropolis: give a payTo and/or an agent / A2A / MCP URL. Returns owner, verified domain, real outside buyer history, wash flags and trust score from Agentropolis. Says when coverage is limite...
Dependency audit. Check up to 10 public dependencies, optionally pinned to exact versions, for advisory IDs, OSV affected/fixed ranges and dated FIRST EPSS CVE estimates. Scoped npm names supported. Detail and subrequest...
Check a password against known data breaches by SHA-1 hash (k-anonymity) - times seen
toolsniff (Tanod) static security scan of an AI-agent skill or MCP server package: prompt injection, hidden text, remote code, credential access, exfiltration, install hooks, over-broad MCP tools, typosquats and known-vu...
Password generator. Generate strong random passwords or passphrase-style strings: choose length and character sets, from a cryptographic random source. Generated on demand; nothing is stored or logged. Use when creating...