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Platforms with no public posting API, Skool being the current one, connect through the Postiz browser extension: it reads your existing session cookies for that platform and passes them to your backend, where they are stored encrypted and refreshed every 24 hours.
Connecting a channel this way is covered in Connect a channel. This page is the instance-side configuration: the extension ID, and building the extension yourself.
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Installation

1

Install the Extension

Install the Postiz browser extension from the Chrome Web Store.Alternatively, for self-hosted setups, you can build the extension from source:
Then load the apps/extension/dist folder as an unpacked extension in Chrome:
  1. Navigate to chrome://extensions/
  2. Enable Developer mode (top right toggle)
  3. Click Load unpacked and select the dist folder
2

Get the Extension ID

After installing the extension, you need its Extension ID:
  1. Go to chrome://extensions/ in Chrome
  2. Find the Postiz extension
  3. Copy the ID shown under the extension name (e.g., cidhffagahknaeodkplfbcpfeielnkjl)
If you installed from the Chrome Web Store, the ID is: cidhffagahknaeodkplfbcpfeielnkjl
3

Configure the Environment Variable

Add the extension ID to your Postiz environment variables:
Restart Postiz after setting this variable.

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Supported Platforms

The following platforms use the Chrome Extension for authentication:

Skool

Post to Skool communities

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Self-Hosted Considerations

If you are self-hosting Postiz on a domain other than localhost or *.postiz.com, you need to build a custom extension with your domain in the externally_connectable manifest field. Edit apps/extension/manifest.json and add your domain:
Then rebuild the extension and load it as an unpacked extension in Chrome.

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Troubleshooting

  • “Extension not found”: Make sure the EXTENSION_ID environment variable is set and Postiz has been restarted.
  • “Extension not reachable”: The extension may be disabled. Check chrome://extensions/ and make sure Postiz is enabled.
  • “Could not get cookies”: You must be logged in to the platform in the same Chrome browser where the extension is installed.
  • Cookies expire: The extension automatically refreshes cookies every 24 hours. If a connection drops, try reconnecting the channel.