Validate an Indian GSTIN by structure (2-digit state code + PAN + entity code + 'Z') and its mod-36 cross-sum checksum.

Fetch and parse robots.txt (+ llms.txt if present) into structured JSON, including which AI crawlers are blocked.

ERC-20 token holders by chain - ranked by balance descending with first-acquired and transfer-initiation flags

Get SmartTraders net inflow value ranking (multiple timeframes: 5min-1day)

Order a researched report (company brief, Israeli regulation explainer, market scan, tech comparison). Written from public sources, delivered within 24h, general information only, not advice. Poll the returned status_url.

Company verification of a legal entity: whether it exists, is registered, and under which identifier — GLEIF, US SEC EDGAR, the Australian Business Register (ABN, ACN, GST, status), with an ASIC search by ACN or ABN. Relevant wherever a company is named in a contract, invoice or filing: an Australian company check, a company register check, an ABN lookup, or an ABN, ACN, LEI or CIK for a company known only by name. Returns found, ambiguous, not_found or unknown, cited with its retrieval time.

BitBooth Whois: pay 0.01 USDC, get the parsed whois record for any domain — registrar, creation/updated/expiry dates, name servers, status flags, plus the raw whois text. Two-hop resolution via whois.iana.org then the authoritative registry over TCP port 43. 5s per-connection timeout cap. Rejects IPv4/IPv6 inputs and blocks SSRF at the DNS layer. Built for agents auditing domain ownership, monitoring expiry, or pre-flighting a target.

Retrieve a comprehensive profile snapshot for an X (Twitter) handle including display name, bio description, follower and following counts, total post count, website URL, location, and account creation date.

HTML to Markdown: any web page, JavaScript rendered, as clean Markdown for LLMs. A web page as clean Markdown for an LLM: pass ?url= and the page is rendered in a real headless Chrome (JavaScript runs), then its main content comes back with headings, lists, links, code blocks, quotes and tables kept as Markdown, and the menus, header, footer and forms left out. Bot walls and empty renders are refused before any charge. Paid in USDC on Base.

Year-on-year growth in point-of-sale sales and units for one of ~380 US consumer companies, by ISIN or ticker, for $0.01: the company's latest reported quarter (91 days to its end) against the same weekdays a year earlier, per panel store and against the covered market (all companies with the same series together). From transactions at eight US retailers, not government aggregates or SEC filings. The daily series: /v1/companies/{id}/sales. Docs: https://api.decadata.io/llms.txt

Query live Polymarket prediction markets — question, outcomes, live prices, bestBid/bestAsk/spread, volume24hr/volume1wk, oneDayPriceChange, clobTokenIds, conditionId, category tags, liquidity, end date. Ranked by volume24hr; filter by keyword.

ETH balance of a Base mainnet address, incl. balance_usd. Use when an agent needs an address's ETH balance in ETH and USD on Base.

ERC-20 token balance of a Base mainnet address, incl. symbol, decimals, balance_formatted. Use when an agent needs an ERC-20 balance for a Base address before a swap or transfer.

Token info and total supply for any ERC20 on Ethereum, Base, Arc or BNB Chain: name, symbol, decimals and total supply (raw and in token units), read at a named block. A contract that is not an ERC20 is refused before any charge.

News Gurus Intel API — token authenticity verdict for one Solana mint: 0-1 realness score, confidence, recommended action (PASS / SMALL_SNIPER / MONITOR / REJECT), rug-risk flags, psyop/pump detection and narrative tags, from a 6-probe on-chain+social verifier with creator rug-history. Returns found:false if the address has never been scanned. Educational data, not financial advice.

Submit an x402 Verified seller record without GitHub: validated by the x402-verified CI validator, PR opened and merged on green for you. One-time fee.

AI intent execution - natural language commands translated to API actions automatically

Headlines by topic from public RSS feeds (Google News + Hacker News). $0.002 per call. No account or API key needed.

Is this crypto entity MiCA-authorised in the EU/EEA, in which register, with what status? Query params: name (string) OR lei (20-character LEI). JSON: match_confidence (exact|strong|weak|none), authorised (boolean), flagged_noncompliant (boolean), matches[] with register, legal_name, lei, home_member_state, competent_authority, status, services[], authorisation_date. Data source: ESMA Interim MiCA Register, official EU data; refreshed daily from weekly ESMA publications.

BitBooth Webhook Signature Verify: pay 0.005 USDC, verify a webhook signature against the provider's canonical HMAC scheme. Supports stripe, github, vercel, cdp, slack, and generic HMAC-SHA256. Constant-time compare, clock-skew tolerance on timestamp-bearing providers (Stripe / Slack / CDP). Stateless — caller supplies their secret in the request body, we never store it.