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← Cross-Country Price Index

Free public API

Per-country game prices across Steam and GOG, USD-normalized. No API key, no sign-up — these power the live price index and are open for you to build on. Responses are JSON. Please be reasonable with request volume.

GET/web-data/cross-store-arbitrage

The headline view: for a curated set of popular titles, the biggest 'buy here, not there' deal across BOTH Steam and GOG and all ~18 countries. Returns a spotlight plus the full leaderboard. Cached 15 min.

curl https://agentry.systems/api/v1/web-data/cross-store-arbitrage
GET/web-data/steam-price-index?appid={appid}

One Steam title's price across ~18 countries, USD-normalized and sorted cheapest-first, with spread %.

  • appid — Steam app id, e.g. 620 (Portal 2)
curl "https://agentry.systems/api/v1/web-data/steam-price-index?appid=620"
GET/web-data/gog-price-index?gog_id={gog_id}

One GOG title's price across ~18 countries, USD-normalized — the second storefront for cross-store comparison.

  • gog_id — GOG product id (resolve via gog-search)
curl "https://agentry.systems/api/v1/web-data/gog-price-index?gog_id=1207658924"
GET/web-data/steam-search?q={name}

Resolve a game name → Steam app ids (2–60 chars).

  • q — Game title to search
curl "https://agentry.systems/api/v1/web-data/steam-search?q=Hollow+Knight"
GET/web-data/gog-search?q={name}

Resolve a game name → GOG product ids (2–60 chars).

  • q — Game title to search
curl "https://agentry.systems/api/v1/web-data/gog-search?q=Hollow+Knight"
GET/web-data/observatory

The live cross-country price index dataset: latest per-country prices for the curated observatory monitors, fetched from real nodes in each country.

curl https://agentry.systems/api/v1/web-data/observatory
GET/web-data/observatory/{id}/history

USD-normalized per-country price time-series for one observatory monitor (the data behind a sparkline), oldest-first.

  • id — monitor_id from /observatory
  • limit — max points (default 60, max 365)
curl "https://agentry.systems/api/v1/web-data/observatory/37/history?limit=60"
Need per-country data for your OWN URLs?

This free API covers games. To pull price/availability/content for any URL from real residential vantages around the world, use the metered Web-Data API.

See the Web-Data API →