Errex

Lightweight self-hosted Sentry alternative in Rust with a ~10 MB footprint, MCP-ready.

Servicefreeglobal

Errex is a free, open-source, lightweight self-hosted Sentry-compatible error tracker built in Rust with a ~10 MB footprint and MCP-readiness for AI agents.

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Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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