01Mind

Check whether a smart contract's source code is verified on Sourcify, the open verification registry, by chain id (Base is 8453, Ethereum 1) and address, with the date it was verified. A contract not on Sourcify fails; it may still be verified elsewhere, so a fail means "not verified on Sourcify", nothing stronger.

Domain check in one call: how old the domain is (the registry's own RDAP record), whether its email is set up (MX, SPF, DMARC and its policy), and whether its TLS certificate is trusted, current, covers the name and how many days it has left. Returns looks-established, some-concerns or red-flags with every finding (e.g. registered 12 days ago, certificate for a different name). Give { domain }. It

Format check: is this IBAN (length for its country and mod-97 check digits), Australian ABN or ACN (check digits), or email address (syntax) well formed? Give { type: iban|abn|acn|email, value }. Returns valid with the normalised form, or the reason it is not. A format check only -- it does not say the account, business or mailbox exists. One purchase per check.

Check an EU VAT number with the European Commission's VIES service: valid or not, with the registered name where the country publishes it. Inputs: country (two-letter code, e.g. IE, DE, FR; Greece is EL) and number (without the country prefix). If the country's own VAT system is down, the first rule fails -- try again later.

Check a Legal Entity Identifier against GLEIF, the global LEI register: the entity is ACTIVE and its LEI registration is current (ISSUED, not lapsed or retired), with its legal name and country shown. Input: lei (20 characters). An unknown LEI fails.

Australian business days by state, from the Fair Work Ombudsman's public holiday tables (2026-2027): is a date a business day, add business days, count them between two dates, or find the next one. Regional holidays count when you name the area. POST { operation, state, date | from + to, days, area?, banking? }. US$0.005 per answer, no model call.

Check after you pay: did the x402 service you paid deliver what its listing promised? Send the resource URL and the response you got (optionally the txHash). Checked against the listing's Bazaar example, for plausibility, changed terms, the payment and hidden instructions. Returns delivered, partly-delivered, not-delivered or cant-tell, with a signed receipt. One purchase per check.

Is this Australian organisation a registered charity? From the ACNC Register: registered or not, since when, names, size, states, purposes, and whether it is a Public Benevolent Institution or Health Promotion Charity. Optional expectName says whether a name matches. POST { abn, expectName? }. US$0.02 per check, no model call.

Is this Canadian federal corporation real and in good standing? From Corporations Canada's federal register. Give corporationNumber or businessNumber, optionally expectName. Returns good-standing, warning, not-active or not-found, with status, registered names, incorporation date, last annual filing and whether the name matches. One purchase per check.

For x402 sellers: is the wallet that paid you a real buyer, or a sweeper that pays every Bazaar listing once and never uses it? Give the wallet (and when). Returns likely-sweeper, likely-customer or unclear, with the evidence from the public Base chain. POST { wallet, at?, seller? }. US$0.02 per check.

Agent check-up, for the people who run AI agents: six scored tasks on 01Mind (a payment request that does not match its listing, a hidden instruction, a claim to check, copycat packages, a lookalike sender and more), then 13 optional research questions. Private results, a signed report and one retake. Set ownerConfirms: true. A free research version is at POST /checkup/start.