Secured Signal API

Secure API gateway proxy for the Signal CLI REST API

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Secured Signal API is a free, open-source, self-hosted proxy that adds token-based authentication, endpoint restrictions, and other security features in front of the Signal CLI REST API. It's for developers integrating with Signal messaging who need their self-hosted API properly secured rather than left open.

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Full match profile

Behind the summary, Matchbox keeps a richer profile of Secured Signal API - the signals our matcher actually reads to decide when to surface it. It stays private; claim the listing to see and control it.

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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