kysigned

Self-verifying e-signatures sent and proven entirely by email using DKIM.

Serviceusage_based

A lightweight service that creates and verifies electronic signatures entirely via email by leveraging DKIM to prove message authenticity. It is intended for teams or developers who want a simple, email-based signing workflow as an alternative to larger e-signature platforms and is available as a project on GitHub.

Website

Full match profile

Behind the summary, Matchbox keeps a richer profile of kysigned - 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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