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ClickSend REST API v3 vs HackMyIP

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

APIClickSend REST API v3HEALTHY96HackMyIPHEALTHY99
Uptime · 30d
Uptime · 90d100%100%
Uptime · 30d100%100%
P50 · ms324157
P95 · ms10352167
AuthapiKeynone
CORSyesyes
HTTPSyesyes
Card requirednono
Commercial useunclearyes
Data licenseUnverifiedUnverified
Free tierFree tier — API key requiredCompletely free — no API key, no signup
Rate limit6000 req/window · 5999 remaining · resets 1100 req/window
In directory since2026-07-052026-07-05
operationalpartialdownno data

ClickSend REST API v3 vs HackMyIP: common questions

Which is more reliable, ClickSend REST API v3 or HackMyIP?

Both are neck-and-neck — ClickSend REST API v3 and HackMyIP 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, ClickSend REST API v3 or HackMyIP?

HackMyIP has the lower median latency in our checks — ClickSend REST API v3 responds in 324 ms versus HackMyIP at 157 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 ClickSend REST API v3 and HackMyIP need an API key?

HackMyIP needs no key, while ClickSend REST API v3 requires a free API key. If you want to start calling without signup, reach for HackMyIP first.

Can I call ClickSend REST API v3 and HackMyIP from the browser?

Yes — both ClickSend REST API v3 and HackMyIP 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 ClickSend REST API v3 and HackMyIP free for commercial use?

ClickSend REST API v3 has unclear commercial terms, and HackMyIP allows commercial use on its free tier. 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.