Search among 20k+ Matrix rooms on 10k+ servers.
How to add your server's public rooms to the index
You can add your server below if it meets the federation and public room requirements. Make sure your server and rooms satisfy all of the following:
Server must be reachable over federation (check here).
Server must publish its public rooms directory over federation.
Room(s) must be explicitly marked as public in settings.
Room(s) must have an alias (like #room:server.com).
Room(s) must be federated (m.federate enabled — default).
Room(s) must be added to the server’s public rooms directory.
📚 Full Documentation
For full technical details on how indexing works, please see the officialMRS documentation.
To manually trigger server discovery, you can use the following API call:
curl -X POST https://apicdn.matrixrooms.info/discover/example.comReplace example.com with your server’s name. Discovery happens automatically during daily reindexing.
❓ Why isn't my server or room showing up?
Your server must expose the public rooms over federation using the/_matrix/federation/v1/publicRooms endpoint.
Example URL:
https://matrix.etke.cc:8448/_matrix/federation/v1/publicRoomsCommon error:
{"errcode":"M_FORBIDDEN","error":"You are not allowed to view the public rooms list of example.com"}If you see this error, you need to configure your homeserver correctly:
For Synapse: add this to your homeserver.yaml:
allow_public_rooms_over_federation: trueFor deployment tools likeetkecc/ansible ormdad, add this to your vars.yml:
matrix_synapse_allow_public_rooms_over_federation: true