URLium
by JacobMunoz
URLium is a server-side Fabric mod that sends redstone state changes from a Minecraft server to a web endpoint over HTTP S.
What it does
Blocks and tools in the mod report redstone power level changes, place, break, use and sense events to a configurable URL. A URLium Block reports on target block entities, such as containers, lecterns, signs, comparators, sensors, hoppers, droppers and dispensers, and can be switched between enabled and disabled reporting for mobs. A URL Post Wand and a URL Config Wand let an operator choose targets and set the endpoint from inside the game.
Outbound HTTP requests are the only traffic URLium generates, and each response is written into the server log. Incoming commands are not accepted by URLium itself; control can be sent in through existing native RCON connections, which lets a server respond to input and output in a circuit. Polymer is required, and a sample PHP webserver response script is provided as a starting point for the receiving side. Files are published for Fabric 1.20.1 and 1.20.2, with the latest file, 1.3.0, targeting 1.20.2 and dated 2023-11-10. The license is CC0 1.0 Universal, so the code is open source.
Key features
Redstone state reporting
Redstone power level changes are sent to the configured URL as they happen.
Block event reporting
Place, break, use and sense events on tagged blocks are transmitted, with block entity data included.
Wand-based configuration
URL Post and URL Config wands set which blocks report and where the requests go.
RCON response loop
Server output can be fed back in through an existing RCON connection to close a circuit.
Client resource pack
Running polymer generate-pack produces a client-side resource pack, and a SHA1 key is updated on the server so items are visible.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
How it compares
HTTP Block is open source under the GNU General Public License v3.0 or later and runs on client and server, with files for 26.1.2 – 26.2. Classic Detector is client-side only under the MIT License, with files for 1.20 – 1.21.4, and is not open source. URLium runs on the server alone, is open source under CC0 1.0 Universal, and targets 1.20.1 – 1.20.2.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| URLium | Fabric | 1.20.1 – 1.20.2 | Server-side only | 2023-11-10 |
| HTTP Block | Fabric | 26.1.2 – 26.2 | Client and server | 2026-06-25 |
| Classic Detector | Fabric | 1.20 – 1.21.4 | Client-side only | 2025-04-17 |
Questions
Does URLium need Polymer installed?
Do players need to install URLium?
Can URLium accept commands from a web service?
Which game versions does URLium support?
In the catalog
URLium is one of 5,392 Social mods on ModsFinder, and one of 4,084 Social mods for Fabric. 12,076 mods support Minecraft 1.20.2.
Similar mods
What the author says
URLium is a Polymer Library server-side mod that transmits redstone, entity, command, and blockstate data over HTTP(S) to a configurable URL. URLium only transmits outbound requests and logs the HTTP response data to the server log. URLium does not allow incoming commands or controls. Any in-bound control of the…
Official listing
- Modrinth page
- modrinth.com/mod/urlium
- Owner
- JacobMunoz
- Published
- 2023-08-16
- Updated on Modrinth
- 2023-11-10
- Facts verified
- 2026-10-15