Look up or search NAICS 2022 industry classification codes (US Census Bureau, public domain). Pass `code` for an exact NAICS code — 2–6 digits or a combined sector like 31-33 — and get its official title, hierarchy path, full official description, activity index terms, and direct child codes. Or pass `query` for free-text search (e.g. 'software publishers', 'coffee shop') over titles plus the official ~20k-entry activity index → ranked candidate codes, optionally filtered by `level` (2=sector … 6=national industry). Ground truth for industry coding in KYC, business registration, government filings, and ERP vendor/customer setup.
# 1. Ask the endpoint what it costs (no payment, no wallet needed): curl -i -X GET 'https://2s.io/api/business/naics' # -> HTTP/1.1 402 Payment Required # the response carries the price, asset and pay-to address. # 2. Pay and retry with any x402 client: npx x402-fetch 'https://2s.io/api/business/naics'
Endpoint: https://2s.io/api/business/naics. Operated by 2s.io, not by Animica. Price and availability were correct at the last probe on 2026-09-02 and are set by the operator, who may change them.
Look up an airport by 3-letter IATA (e.g. SFO) or 4-letter ICAO (e.g. KSFO) code. Query: code (3-5 chars, alphanumeric). Returns { airport: { id, ident, type, n…
Airports within a radius of a coordinate, sorted by distance. Query: lat (-90..90), lon (-180..180), radius_km (1-2000, default 200), limit (1-100, default 20),…
Look up or search the global LEI (Legal Entity Identifier) registry — the authoritative ISO 17442 directory of ~2.6M legal entities worldwide. Pass `lei` for an…
Search state Secretary-of-State business registries, normalized to one schema across states. Currently supported: NY (active corporations + LLCs), CO (all entit…
Official UK company registry (Companies House). Two modes: pass query to search companies by name (returns company number, name, status, type, incorporation dat…
Holiday-aware business-day calculator for 200+ countries. Three modes: pass start + addDays (signed integer) to shift a date by N business days; pass start + en…
Earnings release calendar — which US-listed companies report earnings in a date window, with expected and (once reported) actual EPS and revenue, and the time o…
List the official holidays for a country and year, with exact observed dates including substitute days (e.g. a Saturday July 4th observed on Friday). Query: cou…
Look up a public GitHub repository by "owner/name" slug. Returns full name, owner, description, homepage, default branch, primary language, topics, license (SPD…
Convert a value between units of measure: mass (g, kg, mg, lb, oz, t, st), length (m, km, cm, mm, in, ft, yd, mi), volume (l, ml, m3, gal, gal-imp, qt, pt, cup,…
DeFi yield & lending rates across protocols (via DefiLlama, free/keyless). Returns pools ranked by APY or TVL with base vs reward APY, TVL, 1d/7d/30d APY trend,…
Live perp funding rates, open interest, and mark/oracle/mid prices across 200+ Hyperliquid perpetuals (free/keyless). Each row: coin, hourly funding rate, open …