MMM-Reddit 403 error

[kasperb]

Since maybe a week I’m seeing the below error in the MMM-Reddit module. No changes were made on my end. Reddit likely made changes to its API.

Any idea how to fix this? Thanks!

1|MagicMir | [2026-06-03 06:23:41.235] [ERROR] Error fetching Reddit data: 403 Blocked

[sdetweil]

@kasperb generally, this link of error requires the module developer to make a fix, if possible.
So you need to open an issue on the module GitHub page yo engage the author

[kasperb]

@sdetweil Agreed, will do.

[mumblebaj]

@kasperb Reddit has started to explicitly block unknown browser/user activity. I am busy researching what has changed and how to get this working. Thought supplying an explicit userAgent would resolve the issue with that is not working.

[kasperb]

@mumblebaj Got it - thanks for looking into this. I’ve seen similar behavior on the iOS Narwahl Reddit client; you won’t see any posts unless you’re logged in.

[mumblebaj]

@kasperb So, verdict is as follows:

Reddit no longer allows anonymous JSON fetches. This is now officially dead.

I can maybe make it work for users who have OAuth creds, but I would need to know if it would be worth the while me making those changes, i.e. are there current users of the module who have OAuth creds or not? If not then this module is unfortunately “as good as dead”.

They, Reddit, have moved onto Devvit which is hosted inside Reddit’s platform and handles authentication for apps built on the platform. Not used for external apps.

If there are any users who have OAuth creds, let me know and I will update the module, else I will have to shelve this one.