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Excalibur. The open
Excalibur is an open-source AI coding agent designed for product engineers
verified Jul 6, 2026 · HTTP 200
CohortClass of 2026What it is
Excalibur is an open-source AI coding agent designed for product engineers. It aims to assist in coding tasks, enhancing productivity and efficiency. The tool is built to support engineers in their development workflow.
HTTP liveness
1 probe since Jul 6Jul 6Jul 6
AliveHard-dead (404/5xx/parked)RedirectedUnverified (timeout/DNS/block)
Observed events
probes · press · GitHub- Jul 6, 2026First probe — liveAlive · 200 OK
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Pulse Indexobserved activity
1 probe0 pressGitHub –Tranco –
Not enough observed signals for a Pulse Index (needs 2+ signal families).
Cohort survival · Class of 2026weekly
508 products launched in 2026 · 100% still active
508 active0 sunset
Still active
100%
Median lifespan
4.9y