certx.sh – CLI tool for automated ACME certificate management

Summary: certx.sh is a POSIX shell script that automates obtaining and renewing ACME certificates, supporting DNS/HTTP challenges, multi-server deployment, and various certificate types including wildcard and short-lived certs.

What it does

It manages certificate issuance and renewal via CLI using curl and openssl, supports account rollover, deactivation, and deployment over ssh or ftp with a single config file.

Who it's for

Users needing automated, dependency-free ACME certificate management across multiple servers.

Why it matters

It reduces manual certificate maintenance by enabling unattended renewals and multi-server deployments.