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OPAC-UI
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OPAC-UI

by ImEden6 • Downloads: 0 • Followers: 0
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opac-ui

A client-side mod that adds an in-game party management GUI for Open Parties and Claims using Cloth Config's tabbed-list UI.

Requirements

  • Minecraft 1.20.1 (Fabric)
  • Fabric API
  • Forge Config API Port (Fabric only - required by Open Parties and Claims' Fabric build)
  • Open Parties and Claims (≥ 1.20.1)
  • Cloth Config API (≥ 11.x)

Usage

Press P (configurable in key bindings) to open the party manager.

  • Not in a party - Create Party button
  • In a party - Tabbed screen with three tabs:
    • Members - view ranked member list; promote/demote, kick, and transfer ownership (permission-dependent)
    • Invite - invite players by name; revoke pending invites
    • Allies - view allied parties; unally (permission-dependent)

Branches

This mod is maintained as one branch per Minecraft version - see each branch's own README and CHANGELOG on GitHub for loader-specific setup notes.

opac-ui always requires Open Parties and Claims

  • it's a client-side add-on, not a standalone mod. Exact versions per branch:
Branch Minecraft Loader(s) Open Parties and Claims Cloth Config API Fabric API Forge Config API Port
1.20.1/main 1.20.1 Fabric ≥ 1.20.1 ≥ 11.x 0.92.11+1.20.1 Fabric only
1.21.1/main 1.21.1 Fabric, Forge, NeoForge ≥ 1.21.1 ≥ 15.x 0.105.0+1.21.1 (Fabric) Fabric and Forge (not needed on NeoForge)
26.1.2/main 26.1.2 Fabric, Forge, NeoForge ≥ 26.1.2 not used 0.145.4+26.1.2 (Fabric) Fabric and Forge (not needed on NeoForge)
26.2/main 26.2 Fabric, Forge, NeoForge ≥ 26.2 not used 0.159.0+26.2 (Fabric) Fabric and Forge (not needed on NeoForge)
26.3/main 26.3 Fabric, Forge, NeoForge ≥ 26.3 not used 0.162.0+26.3 (Fabric) Fabric and Forge (not needed on NeoForge)

Notes:

  • Cloth Config was dropped starting with the 26.1.2/main branch since it no longer ships a Forge build - the party screen there is built entirely with Minecraft's own UI components instead.
  • 26.1.2/main, 26.2/main and 26.3/main also need Java 25 (bundled with the game; only relevant when building from source).

License

LGPL-3.0-only - see LICENSE. Matches the Open Parties and Claims project.

All Versions

+ Add Version
Name Game version Platforms Published Downloads Actions
26.3
Neoforge
1d ago 1
26.3
Forge
1d ago 1
26.3
Fabric
1d ago 1
1.20.1
Forge
1d ago 1
1.20.1
Fabric
1d ago 1
1.21.1
Neoforge
1d ago 1
1.21.1
Forge
1d ago 1
1.21.1
Fabric
1d ago 1
26.1.2
Neoforge
1d ago 1
26.1.2
Forge
1d ago 1
26.1.2
Fabric
1d ago 1
26.2
Forge
1d ago 1
26.2
Fabric
1d ago 1
26.2
Neoforge
1d ago 1
1.20.1
Fabric
1d ago 1
26.2
Neoforge
1d ago 1
26.2
Forge
1d ago 1
26.2
Fabric
1d ago 1
26.1.2
Fabric
1d ago 1
26.1.2
Forge
1d ago 1
26.1.2
Neoforge
1d ago 1
1.21.1
Neoforge
1d ago 1
1.21.1
Forge
1d ago 1
1.21.1
Fabric
1d ago 1
1.20.1
Forge
1d ago 1
1.20.1
Fabric
1d ago 1
26.1.2
Forge
1d ago 1
26.1.2
Neoforge
1d ago 1
26.1.2
Fabric
1d ago 1
26.1.2
Neoforge
1d ago 1
26.1.2
Forge
1d ago 1
26.1.2
Fabric
1d ago 1
1.21.1
Neoforge
1d ago 1
1.21.1
Forge
1d ago 1
1.21.1
Fabric
1d ago 1
1.20.1
Fabric
1d ago 1
1.20.1
Forge
1d ago 1
1.20.1
Forge
1d ago 1
1.20.1
Fabric
1d ago 1
[1.0.0] OPAC-UI 1.0.0 by ImEden6 on Oct 18, 2026
Download
Ported to 26.3
[1.0.0] OPAC-UI 1.0.0 by ImEden6 on Oct 18, 2026
Download
Ported to 26.3
[1.0.0] OPAC-UI 1.0.0 by ImEden6 on Oct 18, 2026
Download
Ported to 26.3
[1.0.4] OPAC-UI 1.0.4 by ImEden6 on Oct 18, 2026
Download
## [1.0.4] - 2026-09-29

### Changed
  • Party commands now use OPAC's renamed command prefixes: /oparties (was /openpac-parties) and /opac (was /openpac). Without this, every party action would fail with an unknown command on OPAC 0.31.6.

### Fixed
  • The party rename box now accepts up to 100 characters, matching the server limit. It was capped at 32, which also cut off longer existing names when the box loaded them.
[1.0.4] OPAC-UI 1.0.4 by ImEden6 on Oct 18, 2026
Download
## [1.0.4] - 2026-09-29

### Changed
  • Party commands now use OPAC's renamed command prefixes: /oparties (was /openpac-parties) and /opac (was /openpac). Without this, every party action would fail with an unknown command on OPAC 0.31.6.

### Fixed
  • The party rename box now accepts up to 100 characters, matching the server limit. It was capped at 32, which also cut off longer existing names when the box loaded them.
[1.0.3] OPAC-UI 1.0.3 by ImEden6 on Oct 18, 2026
Download
## [1.0.3] - 2026-09-29

### Fixed
  • The party rename box now accepts up to 100 characters, matching the server limit. It was capped at 32, which also cut off longer existing names when the box loaded them.
  • Party actions work again. Open Parties and Claims (OPAC) 0.31.6 renamed its command prefixes, and the mod now sends the new ones.
[1.0.3] OPAC-UI 1.0.3 by ImEden6 on Oct 18, 2026
Download
## [1.0.3] - 2026-09-29

### Fixed
  • The party rename box now accepts up to 100 characters, matching the server limit. It was capped at 32, which also cut off longer existing names when the box loaded them.
  • Party actions work again. Open Parties and Claims (OPAC) 0.31.6 renamed its command prefixes, and the mod now sends the new ones.
[1.0.3] OPAC-UI 1.0.3 by ImEden6 on Oct 18, 2026
Download
## [1.0.3] - 2026-09-29

### Fixed
  • The party rename box now accepts up to 100 characters, matching the server limit. It was capped at 32, which also cut off longer existing names when the box loaded them.
  • Party actions work again. Open Parties and Claims (OPAC) 0.31.6 renamed its command prefixes, and the mod now sends the new ones.
[1.0.5] OPAC-UI 1.0.5 by ImEden6 on Oct 18, 2026
Download
## [1.0.5] - 2026-09-29

### Fixed
  • The party rename box now accepts up to 100 characters, matching the server limit. It was capped at 32, which also cut off longer existing names when the box loaded them.
  • Party actions work again. OPAC 0.31.6 renamed its command prefixes, and the mod was still sending the old ones.
[1.0.5] OPAC-UI 1.0.5 by ImEden6 on Oct 18, 2026
Download
## [1.0.5] - 2026-09-29

### Fixed
  • The party rename box now accepts up to 100 characters, matching the server limit. It was capped at 32, which also cut off longer existing names when the box loaded them.
  • Party actions work again. OPAC 0.31.6 renamed its command prefixes, and the mod was still sending the old ones.
[1.0.5] OPAC-UI 1.0.5 by ImEden6 on Oct 18, 2026
Download
## [1.0.5] - 2026-09-29

### Fixed
  • The party rename box now accepts up to 100 characters, matching the server limit. It was capped at 32, which also cut off longer existing names when the box loaded them.
  • Party actions work again. OPAC 0.31.6 renamed its command prefixes, and the mod was still sending the old ones.
[1.0.1] OPAC-UI 1.0.1 by ImEden6 on Oct 18, 2026
Download
## [1.0.1] - 2026-09-29

### Changed
  • Now built against the newest Open Parties and Claims 26.2 releases for Fabric, Forge and NeoForge.

### Fixed
  • The party rename box now accepts up to 100 characters, matching the server limit. It was capped at 32, which also cut off longer existing names when the box loaded them.

[1.0.1] OPAC-UI 1.0.1 by ImEden6 on Oct 18, 2026
Download
## [1.0.1] - 2026-09-29

### Changed
  • Now built against the newest Open Parties and Claims 26.2 releases for Fabric, Forge and NeoForge.

### Fixed
  • The party rename box now accepts up to 100 characters, matching the server limit. It was capped at 32, which also cut off longer existing names when the box loaded them.

[1.0.1] OPAC-UI 1.0.1 by ImEden6 on Oct 18, 2026
Download
## [1.0.1] - 2026-09-29

### Changed
  • Now built against the newest Open Parties and Claims 26.2 releases for Fabric, Forge and NeoForge.

### Fixed
  • The party rename box now accepts up to 100 characters, matching the server limit. It was capped at 32, which also cut off longer existing names when the box loaded them.

[1.0.3] OPAC-UI 1.0.3 by ImEden6 on Oct 18, 2026
Download
## [1.0.3] - 2026-09-18

### Fixed
  • Fixed a rare crash (ConcurrentModificationException) when opening the party screen while a member's skin was still being fetched. The render thread was reading a player profile at the same moment the background skin download was writing to it.
  • Members with no UUID no longer make the background skin fetch fail with an error. They now just show the default skin.
[1.0.0] OPAC-UI 1.0.0 by ImEden6 on Oct 18, 2026
Download
## [1.0.0]

### Changed
  • Ported to Minecraft 26.2.

### Fixed
  • Party commands (create, invite, kick, rank, transfer, leave, disband,
allies) stopped working after the update — Open Parties and Claims
changed its command names for this version and opac-ui hadn't caught up.
  • Development builds for Forge and NeoForge were failing to set up during
testing. Doesn't affect the released mod.

[1.0.0] OPAC-UI 1.0.0 by ImEden6 on Oct 18, 2026
Download
## [1.0.0]

### Changed
  • Ported to Minecraft 26.2.

### Fixed
  • Party commands (create, invite, kick, rank, transfer, leave, disband,
allies) stopped working after the update — Open Parties and Claims
changed its command names for this version and opac-ui hadn't caught up.
  • Development builds for Forge and NeoForge were failing to set up during
testing. Doesn't affect the released mod.

[1.0.0] OPAC-UI 1.0.0 by ImEden6 on Oct 18, 2026
Download
## [1.0.0]

### Changed
  • Ported to Minecraft 26.2.

### Fixed
  • Party commands (create, invite, kick, rank, transfer, leave, disband,
allies) stopped working after the update — Open Parties and Claims
changed its command names for this version and opac-ui hadn't caught up.
  • Development builds for Forge and NeoForge were failing to set up during
testing. Doesn't affect the released mod.

[1.0.2] OPAC-UI 1.0.2 by ImEden6 on Oct 18, 2026
Download
## [1.0.2] - 2026-08-13

### Fixed
  • The kick confirmation popup now keeps a small gap from the edge of the screen instead of potentially crowding right up against it on smaller windows.
[1.0.2] OPAC-UI 1.0.2 by ImEden6 on Oct 18, 2026
Download
## [1.0.2] - 2026-08-13

### Fixed
  • The kick confirmation popup now keeps a small gap from the edge of the screen instead of potentially crowding right up against it on smaller windows.
[1.0.2] OPAC-UI 1.0.2 by ImEden6 on Oct 18, 2026
Download
## [1.0.2] - 2026-08-13

### Fixed
  • The kick confirmation popup now keeps a small gap from the edge of the screen instead of potentially crowding right up against it on smaller windows.
[1.0.1] OPAC-UI 1.0.1 by ImEden6 on Oct 18, 2026
Download
## [1.0.1] - 2026-08-13

### Fixed
  • The kick confirmation popup now keeps a small gap from the edge of the screen instead of potentially crowding right up against it on smaller windows.

[1.0.1] OPAC-UI 1.0.1 by ImEden6 on Oct 18, 2026
Download
## [1.0.1] - 2026-08-13

### Fixed
  • The kick confirmation popup now keeps a small gap from the edge of the screen instead of potentially crowding right up against it on smaller windows.

[1.0.1] OPAC-UI 1.0.1 by ImEden6 on Oct 18, 2026
Download
## [1.0.1] - 2026-08-13

### Fixed
  • The kick confirmation popup now keeps a small gap from the edge of the screen instead of potentially crowding right up against it on smaller windows.

[1.0.2] OPAC-UI 1.0.2 by ImEden6 on Oct 18, 2026
Download
## [1.0.2] - 2026-08-13

### Fixed
  • The kick confirmation popup now keeps a small gap from the edge of the screen instead of potentially crowding right up against it on smaller windows.
[1.0.2] OPAC-UI 1.0.2 by ImEden6 on Oct 18, 2026
Download
## [1.0.2] - 2026-08-13

### Fixed
  • The kick confirmation popup now keeps a small gap from the edge of the screen instead of potentially crowding right up against it on smaller windows.
[1.0.1] OPAC-UI 1.0.1 by ImEden6 on Oct 18, 2026
Download
## [1.0.1] - 2026-08-06

### Fixed
  • Buttons overlapping on party screen rows.
[1.0.1] OPAC-UI 1.0.1 by ImEden6 on Oct 18, 2026
Download
## [1.0.1] - 2026-08-06

### Fixed
  • Buttons overlapping on party screen rows.
[1.0.1] OPAC-UI 1.0.1 by ImEden6 on Oct 18, 2026
Download
## [1.0.1] - 2026-08-06

### Fixed
  • Buttons overlapping on party screen rows.
[1.0.0] OPAC-UI 1.0.0 by ImEden6 on Oct 18, 2026
Download
## [1.0.0] - Released

### Changed
  • Ported to Minecraft 26.1.2.
  • Dropped Cloth Config, the library the party screen's tabbed layout used
to be built on. It doesn't support Forge at all on this version, so
the screen was rebuilt using only Minecraft's own built-in UI pieces
instead. Works the same as before across Fabric, Forge, and NeoForge.

### Fixed
  • The black-background bug present on the 1.21.1 branch when Menu Background Blurriness is enabled does not reproduce here, confirmed with blur on.

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