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IBM X-Force Exchange API vs The Guardian

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

APIIBM X-Force Exchange APIHEALTHY96The GuardianDEAD0
Uptime · 30d
Uptime · 90d96.7%50.6%
Uptime · 30d93.3%0.0%
P50 · ms198517
P95 · ms14012726
AuthapiKeyapiKey
CORSnono
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredFree developer key — registration required
Rate limitUnpublished5000 calls/day (developer tier)
In directory since2026-07-052026-07-05
operationalpartialdownno data

IBM X-Force Exchange API vs The Guardian: common questions

Which is more reliable, IBM X-Force Exchange API or The Guardian?

On our scheduled checks, IBM X-Force Exchange API leads on measured uptime — IBM X-Force Exchange API at 96.7% versus The Guardian at 50.6% 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, IBM X-Force Exchange API or The Guardian?

IBM X-Force Exchange API has the lower median latency in our checks — IBM X-Force Exchange API responds in 198 ms versus The Guardian at 517 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 IBM X-Force Exchange API and The Guardian need an API key?

Both ask you to authenticate — IBM X-Force Exchange API uses an API key and The Guardian uses an API key. Each key is free to obtain; the Auth and Card-required rows above spell out the signup terms.

Can I call IBM X-Force Exchange API and The Guardian from the browser?

Neither sends browser-friendly CORS headers reliably, so call IBM X-Force Exchange API and The Guardian from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.

Are IBM X-Force Exchange API and The Guardian free for commercial use?

IBM X-Force Exchange API has unclear commercial terms, and The Guardian 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.