Changelog

The catalog's history, newest first. Full data always in ai-catalog.json.

2026-07-18

  • Bilingual PL/EN pilot: this English section of the site, starting with the homepage and all 18 catalog detail pages, plus a language switcher in the accessibility bar.
  • A permanent accessibility bar at the top of every page: text size (A/A+/A++), a high-contrast mode, and a yellow mode.
  • The first two single-country entries: GENESIS-Online (Destatis, Germany) and Sirene API (INSEE, France) — the catalog grew from 16 to 18 entries, new jurisdiction values: DE, FR.
  • The About page and this changelog page; the catalog's data was made public on GitHub (bartosz-kuc/otwarteapi-catalog) — new APIs and fixes can now be submitted via pull request.
  • An embeddable "listed in the catalog" badge (static SVG, no tracking).
  • A dedicated domain, otwarteapi.pl (previously otwarte-api.netlify.app).
  • The catalog was officially listed on llms-txt-hub.
  • Expanded with 4 EU institutions (ECB, Eurostat, EUR-Lex, data.europa.eu) and a new jurisdiction field (PL/EU) on every entry — the catalog grew from 12 to 16 entries.
  • Catalog launch: 12 Polish public APIs in the ai-catalog.json format, following the Agentic Resource Discovery (ARD) standard.

2026-07-19

  • 16 individual per-API pages, with a live "Try it" button for 8 APIs with open CORS (VAT Register, KRS, NBP, GUS BDL, dane.gov.pl, IMGW, Eurostat, data.europa.eu).
  • The szukaj_katalog_api MCP tool on the skanfirmy.pl/mcp server — an agent connected to skanfirmy.pl can now search this catalog directly.
  • Automatic monitoring of the catalog's link health; fixed 2 outdated documentation links (KRS, EUR-Lex).

2026-07-20

  • Three new single-country entries, each verified live (response + CORS header): ARES (Czech Republic, business registry), CBS StatLine Open Data (Netherlands, statistics) and INE Tempus3 (Spain, statistics) — the catalog grew from 18 to 21 entries, with new jurisdiction values: CZ, NL, ES.
  • All three new APIs have open CORS — they got a live "Try it" button just like the other 8, so now 11 of the catalog's 21 entries can be called directly from a browser.

2026-07-29

  • The skanfirmy.pl (MCP server) entry updated: added an 8th tool sprawdz_lista_nip — bulk lookup of up to 30 tax IDs in one call (MF VAT Register). Mirrors the new tool at skanfirmy.pl/en/bulk — paste a list of tax IDs, get a table plus CSV/JSON export.

2026-08-03

  • The skanfirmy.pl (MCP server) entry updated: added a 9th tool sprawdz_regon — data from the REGON register (Statistics Poland, BIR service) by tax ID: REGON number, official name, legal form and full address. Also covers sole proprietorships that are not in the KRS. Mirrors the new tool at skanfirmy.pl/en/regon.

2026-08-11

  • The catalog is now visible without JavaScript — the homepage carries a static list of all 21 entries with links to their pages (relevant e.g. for AI crawlers, which do not execute JS; with JS enabled the list is replaced by the usual searchable cards).
  • Link previews (Open Graph/Twitter): every page now has a 1200×630 image and description; English pages use a separate English graphic.
  • Hardened security across the site: HSTS, Content-Security-Policy, X-Frame-Options and Permissions-Policy headers.
  • Accessibility and structured data: a <main> landmark and a skip-to-content link on every page, breadcrumbs (BreadcrumbList) on all API pages.

2026-08-13

  • API page titles and headings aligned with real user queries (KRS, REGON, CBS StatLine, GENESIS-Online/Destatis, VIES, VAT Register and more) — no change to the substance, for better recognisability in search results.
  • A new „Related APIs" section on each of the 21 pages — hand-picked links to thematically close APIs (company registers, statistical offices, open data, EU institutions). On the KRS, REGON, VAT Register and VIES pages, an additional link to the ready-made tool built on that API (skanfirmy.pl).

2026-08-14

  • Five new foreign company registers — the catalog grew from 21 to 26 entries: Enhetsregisteret (Norway), YTJ / PRH (Finland), e-Business Register (Estonia), GLEIF LEI (the global registry of Legal Entity Identifiers) and SEC EDGAR (USA). New jurisdiction values: NO, FI, EE, INT, US.
  • Four of them have open CORS (verified live) and got a live "Try it" button: Norway, Finland, Estonia and GLEIF — so now 15 of the catalog's 26 entries can be called directly from a browser. SEC EDGAR requires a User-Agent header, so it stays as a documentation page.
  • Five open-data portals from around the world — the catalog grew from 26 to 31 entries: data.gov.au (Australia), data.gov.sg (Singapore), data.gov.il (Israel), Open Government Canada (Canada) and World Bank Open Data (global). Four with a live "Try it" button (Australia, Singapore, Israel, World Bank); Canada has no CORS header. New countries: Australia, Singapore, Israel, Canada.
  • Full country names instead of codes across the catalog — on cards and detail pages the jurisdiction is now spelled out ("Norway", "European Union", "Australia", "global") rather than abbreviated.
  • Ten more government APIs from around the world — the catalog grew from 31 to 41 entries. Company registers: Uzņēmumu reģistrs (Latvia), GCIS (Taiwan). Data portals and statistics: data.gov.my (Malaysia), datos.gob.cl (Chile), datos.gov.co (Colombia), IBGE (Brazil), data.gov.hk (Hong Kong), datos.gob.ar (Argentina). U.S. law and finance: US Federal Register, USAspending.gov. Six with a live "Try it" button (Malaysia, Chile, Colombia, IBGE, Federal Register, USAspending) — now 25 of the catalog's 41 entries can be called directly from a browser.
  • Twelve company registers and data portals with a free key — the catalog grew from 41 to 53 entries (documentation pages, like INSEE, with no live button — they need a user key). Company registers: Companies House (United Kingdom), gBizINFO and Houjin Bangou (Japan), NZBN (New Zealand), ABN Lookup (Australia), KVK (Netherlands), CRO (Ireland), CVR (Denmark), Zefix (Switzerland). Portals and statistics: data.gov.in (India), data.go.kr (South Korea), US Census Bureau. The catalog now covers 32 jurisdictions across 6 continents.
  • Refreshed copy and llms.txt for the new worldwide scope — the homepage, About, privacy, badge and the machine-readable summary for AI agents now describe a global catalog (previously "Polish and EU"), with up-to-date counts and the full list of all 53 entries in llms.txt.
  • The ECB — Statistical Data Warehouse entry got a live "Try it" button — the data-api.ecb.europa.eu endpoint returns a CORS header (verified live), so the USD/EUR reference rate can be fetched straight from the browser. That's the 26th entry with a live button.

2026-08-20

  • A new dark redesign across the whole site (“Observatory”): consistent, self-hosted typography (IBM Plex Sans/Mono), clearer cards and detail pages — publisher, an “official source” marker and a verification date on every entry.
  • Every API detail page now shows its canonical endpoint (method + address) in machine-readable form. For 52 of 53 entries it was verified directly against the source's official documentation; the one exception (data.go.kr — a multi-service portal with no single fixed address) is deliberately left without an endpoint rather than guessed.
  • The home page gained a “for AI agents” panel with links to ai-catalog.json (ARD) and llms.txt plus a ready-to-run curl example. The accessibility bar and language switch are now merged into a single row.

2026-08-23

  • The government-API pages (REGON/GUS, VAT Register, KRS, VIES) and CEIDG now link to working reference implementations on skanfirmy.pl — ready REST endpoints (e.g. GET /regon/{nip}, GET /nip/{nip}, GET /vies/{country}/{number}) and tools on the MCP server (sprawdz_regon, sprawdz_nip, sprawdz_vies).

2026-08-24

  • Three new entries — European company registers, all keyless: BORME (Spain, BOE commercial-register gazette), RPO (Slovakia, Register of Legal Entities) and JAR (Lithuania, Register of Legal Entities).
  • Three more entries: FRED (US, Federal Reserve Bank of St. Louis economic data — free key), AJPES PRS (Slovenia, business register — registration required) and EDR (Ukraine, Unified State Register — bulk data via data.gov.ua).
  • Added Bolagsverket (Sweden) — the free Värdefulla datamängder API with Swedish company data and SCB, OAuth2 authorization.
  • After this batch the catalog holds 60 entries across 37 jurisdictions.

2026-08-27

  • Refreshed documentation links for five foreign registers that moved their pages: ABN Lookup (Australia), data.gov.au (Australia), gBizINFO (Japan), NZBN (New Zealand) and e-Business Register (Estonia) — the old URLs returned 404/500; the new ones point to the current official API pages. The API call endpoints themselves are unchanged.

2026-09-09

  • Six new company registers — the catalog grew from 60 to 66 entries: BrasilAPI CNPJ (Brazil, Receita Federal CNPJ data), Corporations Canada (Canada, federal corporations register), Active Corporations (USA, New York State company register), Business Entities (USA, Colorado business register), Connecticut Business Registry (USA, Connecticut business register) and Sudski registar (Croatia, court register, OAuth2). New jurisdiction: HR.
  • Four of the new APIs have open CORS and got a live "Try it" button — BrasilAPI CNPJ and the three U.S. state registers on the Socrata platform (New York, Colorado, Connecticut); each verified live (200 response + CORS header).
  • Backfilled the homepage no-JavaScript static list with 7 entries added on 2026-08-24 (BORME, RPO, JAR, FRED, AJPES PRS, EDR, Bolagsverket) that had been omitted from it — now all 66 entries are visible to crawlers that do not run JavaScript.
  • A second wave the same day — the catalog grew from 66 to 92 entries (40 jurisdictions; new: Luxembourg LU and Portugal PT). New categories beyond company registers: international sanctions lists (UN, EU), central banks (Bundesbank, SNB, Riksbank, Bank of England), statistics offices (OECD, BIS, WHO GHO, UNESCO, UN Comtrade, ONS, StatCan, ABS, CSO Ireland, StatBank, SCB, MoSPI), public procurement (Contracts Finder, TED), legislation (legislation.gov.uk), geocoders (Base Adresse Nationale, US Census), open-data portals (Luxembourg, Portugal) and trademarks (USPTO TSDR).
  • Eight of the new APIs have open CORS and got a live "Try it" button (UNESCO, ONS, StatCan, CSO Ireland, StatBank, SCB, BAN, Luxembourg's portal) — 38 entries in total can now be called straight from the browser. Each of the 26 was verified live (response + CORS header/method); USPTO TSDR needs a free API key, the rest are keyless.