Datamuse vs RestoSignals
Same instrument, two spec sheets — measured, not claimed.
Datamuse vs RestoSignals: common questions
Which is more reliable, Datamuse or RestoSignals?
On our scheduled checks, RestoSignals leads on measured uptime — Datamuse at 36.7% versus RestoSignals at 100% 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, Datamuse or RestoSignals?
Datamuse has the lower median latency in our checks — Datamuse responds in 160 ms versus RestoSignals at 748 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 Datamuse and RestoSignals need an API key?
Datamuse needs no key, while RestoSignals requires a free API key. If you want to start calling without signup, reach for Datamuse first.
Can I call Datamuse and RestoSignals from the browser?
Neither sends browser-friendly CORS headers reliably, so call Datamuse and RestoSignals from a server or proxy rather than client-side. The CORS and HTTPS rows above show exactly what we detected for each.
Are Datamuse and RestoSignals free for commercial use?
Datamuse has unclear commercial terms, and RestoSignals 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.