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Word Simi
Word Simi is an API that identifies semantically similar words from a 4-million-word vocabulary with no request limits
since Jun 16, 2026 · HTTP 404
CohortClass of 2026What it is
Word Simi is an API that identifies semantically similar words from a 4-million-word vocabulary with no request limits. Built for developers who need fast, reliable word similarity matching in applications. Perfect for search enhancement, content analysis, and natural language processing tasks.
HTTP liveness
9 probes since Jun 16Jun 16Jul 13
AliveHard-dead (404/5xx/parked)RedirectedUnverified (timeout/DNS/block)
Observed events
probes · press · GitHub- Jun 16, 2026First probe — downDead · 404
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Pulse Indexobserved activity
9 probes0 pressGitHub –Tranco –
Not enough observed signals for a Pulse Index (needs 2+ signal families).
Cohort survival · Class of 2026weekly
567 products launched in 2026 · 100% still active
567 active0 sunset
Still active
100%
Median lifespan
4.9y