ModsFinder

PathFinder API

by JulianWeinelt

PathFinder API is a Forge library for parsing command data, with lightweight parsing of command arguments and custom suggestion lists used by other mods.

ForgeClient-side onlyMIT LicenseOpen source1.12.2

What it does

The library parses command data for Minecraft mods and prepares commands so the game UI can present them. Its suggestion UI is provided by the library itself, and command argument types and custom suggestion lists are handled in one place, so a mod needs to integrate with the API rather than build its own parser.

Normal command suggestions require a mod to include the API, and dynamic in-game suggestions require an API-integrated mod. No required dependency is listed for Forge. Command data is generated through the project's JSON-based workflow, which the author describes as making integration simple, with the generator documented at pathfinder.julianweinelt.de.

PathFinder API is a Forge mod for 1.12.2 only, with the latest file 1.1.1 for 1.12.2, published on 2025-09-19. It is client-side only, so servers do not need it. The code is released under the MIT License and is open source; public links exist for source code, an issue tracker and a wiki.

Key features

  1. Command parsing

    Parses command data for Minecraft mods, so commands and their arguments are read from one shared definition.

  2. Custom suggestion lists

    Command arguments can use custom suggestion lists, which the library feeds into the game UI.

  3. Built-in suggestion UI

    The library includes its own suggestion interface rather than relying on the game's default completion.

  4. JSON-based integration

    Commands are described in JSON, and the generator is documented on the project's own site.

Compatibility

Latest build for each game version and loader.

1.12.21.1.1
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Required by 1 mod

Ultimate Backport Mod1.12.2

Use cases

Dynamic in-game suggestions

Mods that depend on the API can offer live command suggestions while a player types, as Ultimate Backport Mod does.

Mod authors adding commands

Mod developers can register commands and argument types through the API instead of writing a parser for each command.

Who it’s for: Forge mod developers working on 1.12.2 who want a shared command parser, and players who run Ultimate Backport Mod and want dynamic command suggestions.

Questions

Does Ultimate Backport Mod need PathFinder API?

Ultimate Backport Mod depends on PathFinder API and includes it, so the library is part of that mod's setup and does not need a separate install.

Does PathFinder API have to be installed on servers?

No. Players add it to their own game, and a server needs no copy.

Which game versions does PathFinder API support?

The mod has Forge files for 1.12.2 only, with the latest file 1.1.1 for 1.12.2.

In the catalog

PathFinder API is one of 3,514 Library mods on ModsFinder, and one of 1,576 Library mods for Forge. 2,920 mods support Minecraft 1.12.2.

Library mods3,514Forge modsMods for 1.12.22,920

More from JulianWeinelt

All projects
Ultimate Backport Mod1.12.2

Similar mods

Just Enough Items (JEI)1.8 – 26.3Geckolib1.12.2 – 26.3Konkrete1.12 – 26.3CreativeCore1.12.2 – 26.3Bookshelf1.7.10 – 26.3MaLiLib1.12 – 26.3

What the author says

PathFinder API is a dedicated command parsing API for Minecraft mods. It does not provide the suggestion UI itself; that is included in the Ultimate Backport Mod. This mod is needed by Ultimate Backport Mod and other mods depending on the API.
JulianWeinelt, on the Modrinth page

Official listing

Owner
JulianWeinelt
Published
2025-08-22
Updated on Modrinth
2025-09-19
Facts verified
2026-10-15

Tags

LibraryUtility
Open on ModrinthCompare