DarkMatterDB is live. It is a directory of Matter hardware from CSA’s public list, the same list that backs pairing and certification, not a pile of store pages with a Matter sticker.
Every card is labeled CSA certified or listed. Certified means CSA recorded a certified Matter software version for that product. Listed means the model is on the list without that record. That is the CSA status. It is not a vibe check, and it is not “it showed up in Apple Home so it counts.”
If you are wiring a home lab, you already know why that split matters. A listed lock that never picked up a certified software version is still a real product on the ledger. You just should not call it certified. If you want a Thread plug that actually pairs in Alexa and Home Assistant, start with certified, then filter.
Search by name and brand. Filter by device type, Thread or Wi-Fi when CSA recorded a transport, and certification. Not sure of the model? Answer a few questions and we will show matching hardware from the directory.
This is the first public version. The directory follows CSA’s list as it grows. I will keep writing here, from a home lab that also has to keep the hallway lights on. (Yes, that last bit is a little corny. The hallway part is real.)