ZastavkaAPI
by Telvarost
ZastavkaAPI is a library for Minecraft Beta 1.7.3 that lets other mods freeze entities, set music behaviour and read or change block collision.
What it does
The library exposes a set of functions for mod authors. Through them a mod can freeze a mob for a chosen number of game ticks, read how many ticks remain, and change the collision box of a block at runtime. It also covers a few smaller data hooks. Some falling block entities built on StationAPI simple full cubes are corrected by the library, a fix the author describes as temporary until StationAPI handles full-cube blocks the same way.
Music control is the other main area. A mod can detect the song that is currently streaming, cancel the background music, and assign songs to specific biomes or dimensions. Players need the library, while a server may leave it out. It is published for b1.7.3 only, through Fabric and Babric, and is open source under the MIT License. Snapshot builds are published as well. Mod Menu and StationAPI are optional dependencies, and five catalog mods, among them QuickAdditions StationAPI and AdventureBlocks StationAPI, require the library.
Key features
Entity freezing
Mods can get and set the number of Minecraft ticks an enemy stays frozen.
Dynamic block collision
A block's collision box can be read and changed while the game runs, so one block can behave differently in different states.
Biome and dimension music
Songs can be tied to a particular biome or dimension, so the background track changes with the place.
Music control
The current streaming song can be read, and the background music can be cancelled from code.
Gallery
Requirements
Dependencies declared by the latest file for each loader.
Optional 2
Required by 5 mods
Use cases
Who it’s for: Mod authors working on Beta 1.7.3 through Fabric or Babric, and modpack makers who want the library as a dependency for other content.
How it compares
StationAPI is the framework the library builds on. It is published for b1.7.3 on Fabric and Babric, is open source under the MIT License, and works on either side, with clients needing it and servers free to skip it. Good Asset Fetcher is client-side only, also for b1.7.3 on Fabric and Babric, and is open source under the MIT License, so it covers asset loading rather than freezing or music. Beta 1.7.3 Music Discs is for Fabric only and is released under CC0 1.0 Universal.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| ZastavkaAPI | Fabric and Babric | b1.7.3 | Client required, server optional | 2026-07-12 |
| StationAPI | Fabric and Babric | b1.7.3 | Client required, server optional | 2026-09-05 |
| Good Asset Fetcher | Fabric and Babric | b1.7.3 | Client-side only | 2026-06-13 |
| Beta 1.7.3 Music Discs | Fabric | b1.7.3 | Client and server | 2024-04-27 |
Questions
Does ZastavkaAPI need StationAPI?
Which loaders does ZastavkaAPI support?
In the catalog
ZastavkaAPI is one of 3,514 Library mods on ModsFinder, and one of 2,348 Library mods for Fabric. 567 mods support Minecraft b1.7.3.
More from Telvarost
Similar mods
What the author says
A mod for Minecraft Beta 1.7.3 that provides an API for freezing entities, getting and setting specific music, and a few other small data features. (Zastávka is the Czech word for station/stop similar to StationAPI, a suggested play on words by the modding community:D) * Mod is multiplayer compatible Got any…
Official listing
- Modrinth page
- modrinth.com/mod/zastavkaapi
- Owner
- Telvarost
- Published
- 2025-06-19
- Updated on Modrinth
- 2026-07-12
- Facts verified
- 2026-10-15