If you are interested in building an ACME client, Let's Encrypt operates a staging network that you can use for your development effort.
The starting point for the Let's Encrypt staging network is: https://acme-staging.api.letsencrypt.org/directory There are rate limits on that network, but they are very high. If you run into any of them, feel free to ping me off-list. - J.C. Jones _______________________________________________ Acme mailing list [email protected] https://www.ietf.org/mailman/listinfo/acme
