The Guardian vs Zenodo
Same instrument, two spec sheets — measured, not claimed.
The Guardian vs Zenodo: common questions
Which is more reliable, The Guardian or Zenodo?
On our scheduled checks, Zenodo leads on measured uptime — The Guardian at 50.6% versus Zenodo at 94.4% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.
Which is faster, The Guardian or Zenodo?
The Guardian has the lower median latency in our checks — The Guardian responds in 517 ms versus Zenodo at 1794 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.
Do The Guardian and Zenodo need an API key?
Zenodo needs no key, while The Guardian requires a free API key. If you want to start calling without signup, reach for Zenodo first.
Can I call The Guardian and Zenodo from the browser?
Only Zenodo is browser-friendly — it returns CORS headers over HTTPS. The Guardian needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are The Guardian and Zenodo free for commercial use?
The Guardian has unclear commercial terms, and Zenodo has unclear commercial terms. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.