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FullHunt vs Microsoft Security Response Center (MSRC)

Same instrument, two spec sheets — measured, not claimed.

APIFullHuntHEALTHY96Microsoft Security Response Center (MSRC)HEALTHY92
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms334538
P95 · ms11561107
AuthapiKeynone
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — key may be requiredFree — no key required
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

FullHunt vs Microsoft Security Response Center (MSRC): common questions

Which is more reliable, FullHunt or Microsoft Security Response Center (MSRC)?

Both are neck-and-neck — FullHunt and Microsoft Security Response Center (MSRC) each measure 100% uptime over 90 days on our probe schedule. Reliability here is verified from our own scheduled checks; use the 30-day bars above to see which has been steadier lately.

Which is faster, FullHunt or Microsoft Security Response Center (MSRC)?

FullHunt has the lower median latency in our checks — FullHunt responds in 334 ms versus Microsoft Security Response Center (MSRC) at 538 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 FullHunt and Microsoft Security Response Center (MSRC) need an API key?

Microsoft Security Response Center (MSRC) needs no key, while FullHunt requires a free API key. If you want to start calling without signup, reach for Microsoft Security Response Center (MSRC) first.

Can I call FullHunt and Microsoft Security Response Center (MSRC) from the browser?

Neither sends browser-friendly CORS headers reliably, so call FullHunt and Microsoft Security Response Center (MSRC) from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are FullHunt and Microsoft Security Response Center (MSRC) free for commercial use?

FullHunt has unclear commercial terms, and Microsoft Security Response Center (MSRC) 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.