Spaceflight News vs Trove

Spaceflight News API is a free, keyless aggregator of space and astronomy news, articles, blogs, and reports pulled from NASA, ESA, and dozens of other spaceflight outlets, currently indexing more than 35,000 articles. The v4 API is fully open — no signup or API key needed — and returns paginated JSON with count/next/previous fields, plus a public OpenAPI/Swagger reference at its /v4/docs endpoint.

Trove is the National Library of Australia's aggregated search across newspapers, books, images, maps, and other cultural-heritage records spanning well over a century. Its REST API returns XML by default with JSON available via an encoding parameter, and moved from v2 to a mandatory v3 in September 2024 after the older version was discontinued. A free API key is required, issued instantly through a Trove account for non-commercial use.