There are various reasons to prefer web registration instead of “in-band” account registration over XMPP. For example the lack of CAPTCHA support in clients and servers.


mod_register_web has Prosody serve a web page where users can sign up for an account. It implements reCAPTCHA to prevent automated sign-ups (from bots, etc.).


The module is served on Prosody’s default HTTP ports at the path /register_web. More details on configuring HTTP modules in Prosody can be found in our HTTP documentation.

To configure the CAPTCHA you need to supply a ‘captcha_options’ option:

    captcha_options = {
      recaptcha_private_key = "12345";
      recaptcha_public_key = "78901";

The keys for reCAPTCHA are available in your reCAPTCHA account, visit reCAPTCHA for more info.

If no reCaptcha options are set, a simple built in captcha is used.


Copy the files in mod_register_web/templates/ to a new directory. Edit them, and set register_web_template = "/path/to/your/custom-templates" in your config file.


0.10 Works
0.9 Works
0.8 Doesn’t work


Different CAPTCHA implementation support

Collection of additional data, such as email address

The module kept simple!


With the plugin installer in Prosody 0.12 you can use:

sudo prosodyctl install --server= mod_register_web

For earlier versions see the documentation for installing 3rd party modules