Offline validator for a Czech/Slovak rodné číslo (birth number). Normalizes input to YYMMDD/XXXX or YYMMDDXXX(X), checks the calendar-valid month/day (accounting for the +50 female and +20/70 post-2004 month offsets), and for 10-digit numbers confirms the full digit string (slash removed) is evenly divisible by 11. No network calls.

Offline validator for a Dutch RSIN (Rechtspersonen Samenwerkingsverbanden Informatie Nummer), a 9-digit legal-entity tax identifier. Normalizes input (strips spaces/dots/dashes) and applies the elfproef (mod-11 check): weights 9,8,7,6,5,4,3,2 on the first 8 digits, minus the 9th digit, must be divisible by 11.

Ranked, fee-netted arbitrage routes into a target token on Base. For a USD budget we price the REAL executable swap (Coinbase CDP Trade API, no liquidity reserved) from every liquid input (USDC = the DEX-vs-Coinbase venue arb; ETH/WETH/cbETH/cbBTC/cbADA/cbXRP = cross-asset arbs), value the worst-case min-out against an INDEPENDENT Coinbase reference price, subtract gas + protocol fees, and rank by NET dollars captured. Full details: GET /v1.

Token safety check on Base before buying: honeypot, rug pull and scam detection. Verdict SAFE/CAUTION/SCAM with fixed reason codes and action ALLOW/BLOCK/RECHECK; admin rights, sell tax, liquidity, two independent honeypot sources plus own sale simulation of a real holder (Uniswap v4 included), check coverage and block number

Multi-list sanctions compliance bundle for AI agents: OFAC SDN wallet address screen + entity name sanctions (OFAC/EU/UN public designations) + domain trust + LION_SIGNED_COMPLIANCE_RECEIPT_V1 portable proof. PASS/WARN/BLOCK. AML KYC counterparty due diligence. $0.02 Base USDC keyless x402. Matches: multi-list sanctions, compliance receipt, OFAC EU UN screen.

DeFi market overview: total value locked (USD) across all chains, the chain count, and the top chains by TVL with each chain's TVL dominance. This is DeFi TVL — not total crypto market cap.

SEC EDGAR Bundle ($0.03): edgar_filings + edgar_company_facts for one company in a single paid call — cheaper than buying both separately ($0.04). Body { ticker?, cik?, form?, since?, until?, limit?, concepts? }. Check free /v1/edgar_bundle/availability first.

KYB company dossier / company research pack: web + firmographics + domain trust. $0.03. Vendor intel taster; upsell verified company file $0.95. ?q=coinbase.com

Offline validator for an Italian Partita IVA (VAT number): verifies the value is 11 numeric digits and recomputes the Luhn-like check digit (digits in odd positions summed as-is, digits in even positions doubled with 9 subtracted if the result exceeds 9, total summed and complemented mod 10) to confirm it matches the 11th digit.

Cyre Circuit Breaker — seal operator heartbeat interval + spend rails for an autonomous agent. Heartbeat via /api/circuit/heartbeat; enforce before pay via /api/circuit/check. Patterns, not verdicts. Agent guide: https://cyre.dev/SKILL.md

Top DeFi yield pools ranked by APY, with optional filters (chain, project, stablecoin-only, minimum TVL). Dust pools below `minTvlUsd` (default $10k) are excluded so reported APYs are meaningful.

Is this business real, and is its contact info live? Give an id, website, phone or name: matches it against the directory and runs live checks now (site up, name on site, phone on site, domain age, phone format). Returns evidence, score and verdict.

GO-TO PRODUCT: today's Daily Agent Signal — ranked, dated x402/agent-commerce marketplace intelligence (seller pricing, payer-count shifts, settle cadence read from Base, listing churn) with judgment, buyer_value, action_hint, falsifiable calls, sources. Free before paying: /health sha256, /v1/signal_latest/example, and /signal/scorecard.json (every dated call scored, our misses included). Pass expect_sha256 to pay only for the revision you checked. Not general crypto news — see…

Scrape and extract clean text/markdown from a public URL for agent pipelines on Venice, paid per request in USDC on Base via x402, no API key. Standalone; no model lookup required.

Cyre Lookalike — before your agent sends funds, check whether the destination looks like one of your known contacts (prefix/suffix traps, near-edits, confusable chars). Patterns, not verdicts. Agent guide: https://cyre.dev/SKILL.md

Cyre Spend Policy — seal max spend, allow/deny hosts, networks, and risk ceiling into a signed policy token other agent middleware can enforce. Patterns, not verdicts. Agent guide: https://cyre.dev/SKILL.md

GoPlus/Honeypot.is-backed token security check - honeypot flag, buy/sell tax, mintability, and ownership renouncement for a given contract address. A pre-trade safety check a bot runs before it buys. Paid in USDC on Base.

Stablecoin market: total circulating market cap (USD) and the largest stablecoins by mcap with their peg type, peg mechanism (e.g. fiat-backed, crypto-backed) and dominance.

Cyre Pulse Stream — seal up to 10 counterparty watches into a signed subscription token. Pull events via /api/stream/events; fingerprints travel in the token (serverless-safe). Patterns, not verdicts. Agent guide: https://cyre.dev/SKILL.md

Fetches a public URL, extracts all <script type="application/ld+json"> blocks, parses them as JSON, and returns the parsed objects along with a count. Useful for pulling schema.org structured data (Product, Article, Organization, etc.) from a web page.