Agent Hustle API vs Open Notify

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

Uptime · 30d
Uptime · 90d100%71.6%
Uptime · 30d100%65.0%
P50 · ms210241
P95 · ms5834298
AuthapiKeynone
CORSyesyes
HTTPSyesno
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedn/a
Free tierFree tier — API key requiredUnlimited (volunteer-run)
Rate limitUnpublishedPlease be gentle
In directory since2026-07-052026-05-02
operationalpartialdownno data

Agent Hustle API vs Open Notify: common questions

Which is more reliable, Agent Hustle API or Open Notify?

On our scheduled checks, Agent Hustle API leads on measured uptime — Agent Hustle API at 100% versus Open Notify at 71.6% 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, Agent Hustle API or Open Notify?

Agent Hustle API has the lower median latency in our checks — Agent Hustle API responds in 210 ms versus Open Notify at 241 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 Agent Hustle API and Open Notify need an API key?

Open Notify needs no key, while Agent Hustle API requires a free API key. If you want to start calling without signup, reach for Open Notify first.

Can I call Agent Hustle API and Open Notify from the browser?

Only Agent Hustle API is browser-friendly — it returns CORS headers over HTTPS. Open Notify needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Agent Hustle API and Open Notify free for commercial use?

Agent Hustle API has unclear commercial terms, and Open Notify 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.