---
c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
SPDX-License-Identifier: curl
Long: ssl-auto-client-cert
Help: Use auto client certificate (Schannel)
Added: 7.77.0
Category: tls
Protocols: TLS
Multi: boolean
See-also:
  - proxy-ssl-auto-client-cert
Example:
  - --ssl-auto-client-cert $URL
---

# `--ssl-auto-client-cert`

(Schannel) Automatically locate and use a client certificate for
authentication, when requested by the server. Since the server can request any
certificate that supports client authentication in the OS certificate store it
could be a privacy violation and unexpected.