Post #2418992

2025-10-01 18:02 UTC

Extremely pleased to announce the release of the ActivityPub Fuzzer! This is a tool that runs in a local development environment and (partially) emulates known ActivityPub software. It can even create a fake local &quot;public fire hose&quot; shaped like what you might see if you hooked your in-development software up to the real Fediverse. I built this because I wanted ways to test in-progress fedi software for compatibility without actually making it live and breaking things. https://asml.cyber.harvard.edu/2025/10/01/introducing-the-asml-activitypub-fuzzer-improving-testing-in-the-fediverse/

Replies (16)

@darius@friend.camp 2025-10-01 18:12

I am VERY much open to feedback on this project. It is in very early days and I'm sure there are a million great features that could be added. The project's Github is the best place to file feature requests: https://github.com/berkmancenter/activitypub-fuzzer/

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@stefan@gardenstate.social 2025-10-01 18:03

@darius@friend.camp very cool!

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@krisfreedain@fosstodon.org 2025-10-01 18:07

@darius@friend.camp amazing work

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@a@pdx.social 2025-10-01 18:56

@darius@friend.camp Ooo, this looks super useful!

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@matt@writing.exchange 2025-10-01 21:31

@darius@friend.camp awesome to see this launched!

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@drq@mastodon.ml 2025-10-01 22:00

@darius@friend.camp Real shit. Thanks for making this. We need dev tools, and I might need something like this someday.

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@buddhawilliams@eigenmagic.net 2025-10-01 23:16

@darius@friend.camp this is an excellent idea. Well done.

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@ferrix@mastodon.online 2025-10-01 23:20

@darius@friend.camp The Fuzziverse.

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@virtualwolf@toot.virtualwolf.org 2025-10-02 00:01

@darius@friend.camp Woahhh that is cool as hell!

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@django@social.coop 2025-10-02 01:30

@darius@friend.camp awesome, I’m looking forward to trying it out!

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@simonzerafa@infosec.exchange 2025-10-02 04:01

@darius@friend.camp LocalPub? As in the ancient British tradition of going to your local public house for a drink and endless involved conversation about your sports team dismal performance at the weekend 🙂 If it's empty when you arrive then it's called The NoBodies Inn 😇

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@NafiTheBear@snaggletooth.life 2025-10-02 07:36

@darius@friend.camp thank you very much!

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@trashpanda@m.alittlenook.net 2025-10-02 12:27

@darius@friend.camp Oh I am actually really excited for this!

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@LilaHexe@fedi.lilahexe.top 2025-10-03 16:59

@kitten@social.elizabeth.cat !!!

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@lown@hachyderm.io 2025-10-04 07:17

@darius@friend.camp oh thank goodness for you, Darius ❤️

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@lown@hachyderm.io 2025-10-04 07:18

@darius@friend.camp I was gonna say do you KNOW how hard it is to set up local AP activity to test an AP service. But of course you do 😇

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