CIRCL CVE Search vs RSS2JSON
Same instrument, two spec sheets — measured, not claimed.
CIRCL CVE Search vs RSS2JSON: common questions
Which is more reliable, CIRCL CVE Search or RSS2JSON?
On our scheduled checks, RSS2JSON leads on measured uptime — CIRCL CVE Search at 96.1% versus RSS2JSON at 98.3% 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, CIRCL CVE Search or RSS2JSON?
RSS2JSON has the lower median latency in our checks — CIRCL CVE Search responds in 503 ms versus RSS2JSON at 102 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 CIRCL CVE Search and RSS2JSON need an API key?
RSS2JSON needs no key, while CIRCL CVE Search requires a free API key. If you want to start calling without signup, reach for RSS2JSON first.
Can I call CIRCL CVE Search and RSS2JSON from the browser?
Yes — both CIRCL CVE Search and RSS2JSON send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.
Are CIRCL CVE Search and RSS2JSON free for commercial use?
CIRCL CVE Search has unclear commercial terms, and RSS2JSON 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.