Surveyor Map Framework Mod (26.1.2, 1.20.1) – Unified API, Networking
Java mod listed for Minecraft 1.20. Downloads from the MC Java Mods app on Android.
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Surveyor Map Framework Mod is a library mod for developers who create mods that are based on maps and related features. And for this reason, regular players need not download this mod. This mod provides an unified API, networking and save data function for maps. It records terrain, structure, and “landmark” data suitable for maps as the world is changed and also enables live map sharing between players by tracking individual exploration of the map. Data regarding structures will be sent to the client as these structures are discovered or shared. And it only adds 2-5% to save size, using an efficient format both in-memory and on-disk.

Features:
In general, Surveyor:
- Records terrain, structure, and “landmark” data suitable for maps as the world is changed.
- Enables live map sharing between players by tracking individual exploration of the map.
- Sends the client structures as they’re discovered or shared.
- Syncs map data and landmarks (e.g. waypoints) when sharing or on client data loss.
- Exposes a generic API for map mod integrations (e.g. adding map markers to important locations).
- Only adds 2-5% to save size, using an efficient format both in-memory and on-disk.
Surveyor’s data deliberately preserves key details, designed to allow any arbitrary map mod to use it:
- Terrain is a top-down view of blocks with height, biome, light level, and water depth.
- Terrain contains multiple layers, allowing for usable cave and nether maps.
- Structures have IDs, pieces, tags, and even full piece NBT for smaller structures intact.
- Landmarks generically represent other positional map data – e.g. waypoints, POIs, or faction claims.
Commands:
- /surveyor – display information about your map exploration, including sharing.
- /surveyor share [username] – request/accept sharing map exploration with a player.
- /surveyor unshare – stop sharing map exploration (leave your “sharing group”)
- /surveyor landmarks – view a cross-world landmark breakdown by type.
- /surveyor landmarks get [type] – lists each landmark of that type in the current world.
- /surveyor remove [type] [pos] (op for unowned) removes a landmark from the world.
- /surveyor add [type] [pos] [name] add an owner to the world at the specified position.
- /surveyor global [type] [pos] [name] (op 2) add an unowned landmark to the world at the specified position.
Screenshots:





Surveyor Map Framework Mod Download Links
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.20.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: In MC Java Mods, or directly above on this page.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Downloads as 26384.mcaddon
- Download size: 597 KB
- Download link checked 10 Oct 2026 — working
- Mirrored on our own servers — the download does not depend on the original host
These come from our own check of the pack file, not from the source page.