SeamlessLib
by SeamlessMods
SeamlessLib is a common code base for companion addons, supplying APIs and visual helpers that its companions draw on.
What it does
Companion addons call into SeamlessLib for shared code: APIs, visual utilities and helpers used by addons that cover salvage, meteor showers and food. Because the common parts live in one place, the companion addons do not each carry their own copy.
The library is required by 2 other mods in the catalog, Nearby Chest Crafting and Salvage Workbench, so installing either of them means installing SeamlessLib first. The mod has to be present on the server and on every player's client, since it runs on client and server. Files are published for Fabric, Forge and NeoForge, and the latest build for each loader is 2.0.2+mc26.3 for 26.3, released 2026-10-05.
Game versions with files are 1.20.1, 1.21.1, 26.2 and 26.3, so the range covers 1.20.1 – 26.3 across four release versions. Players choose the file that matches their Minecraft version and mod loader. The code is All rights reserved and is not open source, although public links to the source code and issue tracker exist.
Key features
Shared APIs
Common APIs used by the companion addons, so they can reuse the same code paths.
Visual utilities
Helpers for visual effects that the companion addons draw on, kept in one library.
Thrown-item effects
Thrown-item animations, trail profiles and the buffs applied to thrown items come from shared code.
Salvage and food support
Item salvage mappings, output modifiers and food buff combo registration are provided for companion mods.
Meteor shower hooks
Meteor shower triggers link to a companion meteor mod through the shared library.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Required by 2 mods
Use cases
Who it’s for: Players who use Nearby Chest Crafting or Salvage Workbench need this library installed. Server owners running companion addons should install it on the server and keep clients on a matching file.
How it compares
Alexandria Lib is a library for Fabric and NeoForge on 1.21.1 only, with All rights reserved and no open source. LanternLib is open source under the GNU Lesser General Public License v3.0 or later and covers Forge and NeoForge for 1.20.1 – 1.21.1, so it fits a different loader and version set than SeamlessLib.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| SeamlessLib | Fabric, Forge and NeoForge | 1.20.1 – 26.3 | Client and server | 2026-10-05 |
| Alexandria Lib | Fabric and NeoForge | 1.21.1 | Client and server | 2026-09-30 |
| LanternLib | Forge and NeoForge | 1.20.1 – 1.21.1 | Client and server | 2026-04-01 |
Questions
Which mods require SeamlessLib?
Does SeamlessLib need to be on the server?
Which file should a player choose?
In the catalog
SeamlessLib is one of 3,514 Library mods on ModsFinder, and one of 2,348 Library mods for Fabric. 8,071 mods support Minecraft 26.3.
More from SeamlessMods
Similar mods
What the author says
SeamlessLib is the shared library for the Seamless mod ecosystem, providing common APIs and visual utilities for companion mods and addons. Install SeamlessLib when a mod lists it as a dependency. Choose a file that matches your Minecraft version and mod loader. Gameplay features are provided by the companion mods.
Official listing
- Modrinth page
- modrinth.com/mod/seamless-api
- Owner
- SeamlessMods
- Published
- 2026-03-20
- Updated on Modrinth
- 2026-10-05
- Facts verified
- 2026-10-15