x402 resource directory

Find paid HTTP operations and MCP tools by URL, host, method or tool name. Compare payment terms across networks and catalogs.

Distinct HTTP URLs
162,788
Distinct MCP URLs
43
Catalog observations
263,972
URLs with a 402 in 7 days
1,592
Network identifiers
181

These results as JSON

GET https://2s.io/api/business/kyb-360 · 1 observation
Full Know-Your-Business (KYB) intelligence dossier on a company, in one call. Pass name (legal/common company name); optional state narrows federal awards, and optional ticker pulls the company's SEC EDGAR identity + recent filings (SEC has no name search). Fans out to seven authoritative sources and merges them: SAM.gov registration (UEI/CAGE, active status), SAM exclusions (federal debarment/suspension), OFAC SDN sanctions screen, GLEIF LEI (legal-entity identifier + jurisdiction), USAspending

2s profile

  • Base · exact
    $0.0144 (USDC)
    agentic.market · seen
GET https://2s.io/api/business/lei · 1 observation
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 exact 20-character LEI, or `query` to search by legal/other name (ranked best-match first). Filter name search by `country` (ISO 2-letter, HQ country) and `status` (active = currently active entities only; all = default). Each result returns the LEI, legal name, an alternate/other name, legal jurisdiction, entity category (GENERAL/FUND/B

2s profile

  • Base · exact
    $0.0030 (USDC)
    agentic.market · seen
GET https://2s.io/api/business/lei-hierarchy · 1 observation
Corporate ownership graph for a legal entity by LEI (GLEIF Level-2 relationships, live). Returns the direct parent and ultimate parent (each: LEI, legal name, jurisdiction, country, status), the direct children (paged), and total counts of direct and ultimate children. The authoritative 'who owns whom' lookup for KYB, beneficial-ownership, and corporate-tree mapping — complements business.lei (entity reference) and business.lei-isins.

2s profile

  • Base · exact
    $0.0014 (USDC)
    agentic.market · seen
GET https://2s.io/api/business/lei-isins · 1 observation
ISIN ↔ LEI mapping (GLEIF, live, CC0). Two modes: pass lei to list every ISIN (security identifier) issued by that entity; or pass isin to resolve the issuer's LEI (with legal name, jurisdiction, country). Bridges securities to their legal-entity issuers for finance, compliance, and reference-data joins — complements business.lei and business.lei-hierarchy.

2s profile

  • Base · exact
    $0.0014 (USDC)
    agentic.market · seen
GET https://2s.io/api/business/naics · 3 observations
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 …

2s profile

  • Solana · exact
    $0.0025 (USDC)
    Recipient TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn
    Coinbase CDP · seen
    Coinbase CDP reports 1 calls and 1 unique payers in 30 days. Last call .
  • Base · exact
    $0.0025 (USDC)
    Recipient 0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5
    Coinbase CDP · seen
  • Base · exact
    $0.0025 (USDC)
    agentic.market · seen
GET https://2s.io/api/business/no-companies · 1 observation
Official Norwegian company registry search (Brønnøysund Enhetsregisteret). Search by company name. Each result: organisation number, name, organisation form, primary industry (NACE), employee count, registration date, website, bankruptcy and dissolution flags, and business address. Free, NLOD/CC BY 4.0. The authoritative NO company lookup — complements business.uk-companies and business.lei.

2s profile

  • Base · exact
    $0.0036 (USDC)
    agentic.market · seen
GET https://2s.io/api/business/pl-krs · 1 observation
Official Polish company registry lookup by KRS number (KRS — Ministry of Justice, current extract / OdpisAktualny). Returns legal name, legal form, NIP and REGON identifiers, KRS registration date, share capital, and registered address. Register P = entrepreneurs (default); S = associations/foundations. Free, Polish public-sector open data. The authoritative PL company lookup — complements business.uk-companies and business.lei.

2s profile

  • Base · exact
    $0.0014 (USDC)
    agentic.market · seen
GET https://2s.io/api/business/sos-search · 1 observation
Search state Secretary-of-State business registries, normalized to one schema across states. Currently supported: NY (active corporations + LLCs), CO (all entities incl. status), and CT (Business Registry Master incl. type, status, NAICS). Query by name (partial, case-insensitive) or exact entityId; results: state, entity id, name, type, status, formation jurisdiction, formation date, principal/registered address, registered agent. KYC, vendor due-diligence, and counterparty-verification staple.

2s profile

  • Base · exact
    $0.0072 (USDC)
    agentic.market · seen
GET https://2s.io/api/business/uk-companies · 1 observation
Official UK company registry (Companies House). Two modes: pass query to search companies by name (returns company number, name, status, type, incorporation date, address), or pass companyNumber for the full registry profile — legal name, status, company type, jurisdiction, incorporation/cessation dates, SIC activity codes, registered office address, accounts (next due, last made-up-to), confirmation-statement due date, charges and insolvency flags, previous names, and the officers list (name, r

2s profile

  • Base · exact
    $0.0036 (USDC)
    agentic.market · seen
GET https://2s.io/api/calendar/business-days · 3 observations
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 + end to count business days between two dates (exclusive of start, inclusive of end); pass start alone to check one date (is it a business day, which holiday, next/previous business day). Query: country (ISO 3166-1 alpha-2), start (YYYY-MM-DD), optional region (subdivision code), addDays XOR end, optional weekend (comma-separated days, defau

2s profile

  • Solana · exact
    $0.0025 (USDC)
    Recipient TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn
    Coinbase CDP · seen
    Coinbase CDP reports 5 calls and 5 unique payers in 30 days. Last call .
  • Base · exact
    $0.0025 (USDC)
    Recipient 0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5
    Coinbase CDP · seen
  • Base · exact
    $0.0025 (USDC)
    agentic.market · seen
GET https://2s.io/api/calendar/earnings · 5 observations
Returns upcoming earnings dates and related company event data.

2s profile

  • Base · exact
    $0.0025 (USDC)
    Recipient 0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5
    Dexter · seen
  • Solana · exact
    $0.0025 (USDC)
    Recipient TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn
    Dexter · seen
  • Base · exact
    $0.0025 (USDC)
    Recipient 0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5
    Coinbase CDP · seen
    Coinbase CDP reports 179 calls and 7 unique payers in 30 days. Last call .
  • Solana · exact
    $0.0025 (USDC)
    Recipient TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn
    Coinbase CDP · seen
  • Base · exact
    $0.0025 (USDC)
    agentic.market · seen
GET https://2s.io/api/calendar/holidays · 3 observations
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: country (ISO 3166-1 alpha-2, 200+ supported), year, optional region (subdivision code like CA for US-California or BY for DE-Bavaria), optional types filter (public, bank, school, optional, observance — comma-separated), optional lang (ISO 639-1) for localized names. Returns one item per holiday: { date (YYYY-MM-DD), name, type, substitute,

2s profile

  • Base · exact
    $0.0025 (USDC)
    Recipient 0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5
    Coinbase CDP · seen
    Coinbase CDP reports 27 calls and 8 unique payers in 30 days. Last call .
  • Solana · exact
    $0.0025 (USDC)
    Recipient TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn
    Coinbase CDP · seen
  • Base · exact
    $0.0025 (USDC)
    agentic.market · seen
GET https://2s.io/api/calendar/ipo · 1 observation
IPO calendar — companies going public (or recently public) in a date window, with the expected date, symbol, name, exchange, price range, number of shares, total offering value, and status (expected/priced/filed/withdrawn). Pass a from/to window (YYYY-MM-DD; defaults to a ±30-day span around today). Data by Finnhub.

2s profile

  • Base · exact
    $0.0010 (USDC)
    agentic.market · seen
GET https://2s.io/api/census/demographics · 1 observation
US Census ACS 5-year demographics for a state or county. Give a state (2-letter or 2-digit FIPS), optionally a 3-digit county FIPS, and get population, median age, median household income, per-capita income, poverty rate (computed), households, owner-occupancy rate (computed), median home value, and median gross rent. Free, public-domain (US Census Bureau). Complements census.zipcode (ZIP/ZCTA-level) with state- and county-level geography. Authoritative demographic data an LLM cannot recall — fo

2s profile

  • Base · exact
    $0.0011 (USDC)
    agentic.market · seen
GET https://2s.io/api/census/zipcode · 1 observation
US Census ACS 5-year demographics for a ZIP code (ZCTA). Returns population, median age, median household income, poverty rate, household composition, race + ethnicity breakdown, education attainment, workforce (with computed unemployment rate), and housing (with computed owner-occupancy rate and median rent/home value). Backed by ~33k ZCTAs pre-ingested from api.census.gov; refreshed annually. Public-domain US government data.

2s profile

  • Base · exact
    $0.0010 (USDC)
    agentic.market · seen
GET https://2s.io/api/chinese/convert · 1 observation
Convert Chinese text between Simplified and Traditional scripts (and regional variants). from/to take: cn (Mainland Simplified), tw (Taiwan Traditional), twp (Taiwan w/ idioms), hk (Hong Kong Traditional), t (generic Traditional), jp (Japanese Shinjitai). E.g. from=cn to=tw. Deterministic, keyless (OpenCC mappings).

2s profile

  • Base · exact
    $0.0010 (USDC)
    agentic.market · seen
GET https://2s.io/api/chinese/detect · 1 observation
Detect Chinese in text: whether it contains Han characters, how many, total length, and a script classification — simplified, traditional, mixed, or han-common (characters identical in both scripts). Deterministic, keyless. Route text to the right pipeline or pick a conversion direction before calling chinese.convert.

2s profile

  • Base · exact
    $0.0010 (USDC)
    agentic.market · seen
GET https://2s.io/api/chinese/pinyin · 1 observation
Convert Chinese (Hanzi) text to pinyin romanization. Choose tone marks (symbol, e.g. hàn yǔ), numbered tones (han4 yu3), or no tones. Auto-segments words and returns the full pinyin string plus a per-syllable array. Deterministic, keyless — useful for transliteration, pronunciation, search indexing, and TTS prep.

2s profile

  • Base · exact
    $0.0025 (USDC)
    agentic.market · seen
GET https://2s.io/api/class/industry-resolve · 1 observation
Cross-walk an industry classification code across the four major systems: NAICS <-> SIC <-> ISIC Rev.4 <-> NACE Rev.2. Pass the system + code and get the equivalent code(s) in every other system, with official titles where available, plus the vintage of each table used. The deterministic join that lets a KYC, procurement, ERP, or cross-border-reporting agent translate "what industry is this" between the US (NAICS/SIC), international (ISIC), and EU (NACE) standards. Backed by bundled public-domai

2s profile

  • Base · exact
    $0.0036 (USDC)
    agentic.market · seen
GET https://2s.io/api/climate/station-history · 1 observation
Historical daily weather observations from NOAA GHCN-Daily for one station and date range (up to 366 days per call): max/min/avg temperature (°C), precipitation (mm), snowfall and snow depth (mm), wind (m/s). Coverage reaches back to the 1800s for long-running stations — actual measured values for "what was the weather on this date", not model recall. Pass a GHCN station id (e.g. USW00094728 = NYC Central Park); find the nearest station for any coordinate with /api/climate/station-near first. da

2s profile

  • Base · exact
    $0.0012 (USDC)
    agentic.market · seen
GET https://2s.io/api/climate/station-near · 1 observation
Find NOAA GHCN-Daily weather stations near a coordinate. Returns up to 100 stations within a configurable radius (default 500 km), sorted by distance. Each station includes id, name, lat/lon, elevation, country/state, and GSN/HCN/WMO flags. Backed by a ~132k-station registry refreshed monthly from ncei.noaa.gov.

2s profile

  • Base · exact
    $0.0010 (USDC)
    agentic.market · seen
GET https://2s.io/api/clinical/study-detail · 3 observations
Retrieves detailed information for a clinical study record.

2s profile

  • Solana · exact
    $0.0036 (USDC)
    Recipient TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn
    Dexter · seen
  • Base · exact
    $0.0036 (USDC)
    Recipient 0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5
    Dexter · seen
  • Base · exact
    $0.0014 (USDC)
    agentic.market · seen
GET https://2s.io/api/clinical/trial-search · 1 observation
Search ClinicalTrials.gov — every registered US (and many international) clinical study (~500k trials). Free-text query matches title + condition + intervention; or direct lookup by NCT ID. Optional filters: recruitment status, lead sponsor, phase (PHASE1..PHASE4), country. Each record includes NCT ID, brief + official title, status, phases, study type, conditions list, interventions (with type + name), enrollment count + type, key dates (start / primary completion / completion / first posted /

2s profile

  • Base · exact
    $0.0012 (USDC)
    agentic.market · seen
GET https://2s.io/api/code/repo-lookup · 1 observation
Look up a public GitHub repository by "owner/name" slug. Returns full name, owner, description, homepage, default branch, primary language, topics, license (SPDX key + name), counts (stars / forks / watchers / open issues / subscribers / network), size, timestamps (created/updated/pushed), visibility, has-issues/projects/wiki/discussions flags. Unauthenticated GitHub access is rate-limited to 60 req/hour per server IP — returns 429 UPSTREAM_RATE_LIMIT when the bucket is empty.

2s profile

  • Base · exact
    $0.0030 (USDC)
    agentic.market · seen

Counts describe directory coverage, including testnets. Each resource groups the same URL, HTTP method or MCP tool across sources. A catalog sighting records published terms. A live 402 records the endpoint’s reply to an unpaid request.