InfraNode vs Wikidata

InfraNode unifies open data for dozens of German cities into a single versioned REST API, covering weather, air quality, EV charging, public-transit departures, demographics, and dozens of other civic datasets. Every endpoint is keyless and rate-limited per IP rather than gated behind a subscription ("Die API ist offen und braucht keinen API-Key"), with an OpenAPI spec and Postman collection published for quick integration. The project is open source (Apache-2.0) and runs on a server in Germany with no ads.

Wikidata's action API exposes the structured, multilingual knowledge base behind Wikipedia's infoboxes — entity search, full item/property retrieval, and SPARQL-style queries over billions of statements. All read operations (wbsearchentities, wbgetentities, wbgetclaims, and friends) are keyless; OAuth only comes into play for authenticated edits/writes, which this directory entry isn't about. CORS is opt-in per request via the documented `origin=*` query parameter, which returns a wildcard Access-Control-Allow-Origin.