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SeedFinder
What it is
SeedFinder is a free web, API, self-hosted, Linux, and Windows toolkit for locating Minecraft structures from a world seed and player position. It supports Bedrock and Java contexts and lists villages, temples, ocean structures, ancient cities, mansions, portals, buried treasure, mineshafts, trail ruins, and trial chambers. The browser console runs scans locally through WebAssembly without an account, key, download, Minecraft-world connection, or third-party seed map. Its REST API accepts GET or POST requests and returns JSON, with examples for Python, Lua, and Node.js. The hosted API allows 60 requests per IP per minute, limits scan radius to 1,000 chunks, and caps results at 200. SeedCracker searches for Bedrock seeds matching selected structures near supplied coordinates and requires at least four structures with coordinates. Its hosted HTTP API is offline; the documented HTTP API runs locally. Flarial Client can display nearby structures in-game.
For and against
For
- Browser scans need no account or download
- Supports many structure types
- Provides JSON REST API access
- Includes Python, Lua, and Node.js examples
- Offers Flarial Client overlay integration
Against
- Hosted API allows 60 requests per IP per minute
- Scans cap at 1,000 chunks radius
- Results are limited to 200
- SeedCracker needs four structures with coordinates
The verdict
SeedFinder provides local browser tools, API access, and an overlay for structure discovery. Its request, radius, and result limits matter for large searches, while SeedCracker requires specific coordinate data.
Who it suits
It suits Minecraft players locating structures or searching for Bedrock seeds matching known layouts. Developers can also use the REST API or documented local HTTP API.
Plans and prices
Free
Hosted browser tools and API · 60 requests per IP per minute
Read 15 Oct 2026 · mineseedfinder.com
On the record
- Accuracy limitation
- The project warns that coordinates are predictions and can differ when Minecraft world-generation versions change.mineseedfinder.com · read 15 Oct 2026
- API
- The REST API accepts GET or POST requests and returns JSON results.mineseedfinder.com · read 9 Oct 2026
- API limits
- Hosted API documentation caps radius at 1,000 and results at 200, while the hosted service limits each IP to 60 requests per minute.mineseedfinder.com · read 15 Oct 2026
- API parameters
- Scan requests accept seed, x, z, radius, max and structure-type parameters, with an edition selector on the general route.mineseedfinder.com · read 15 Oct 2026
- Architecture
- The implementation combines a C engine based on cubiomes, a Python Flask HTTP layer and a Lua Flarial module.github.com · read 15 Oct 2026
- Browser execution
- SeedCracker runs in the browser through WebAssembly, with calculations performed on the user's machine.mineseedfinder.com · read 15 Oct 2026
- Browser operation
- The SeedFinder console runs scans in the browser via WebAssembly without an account, key or download.mineseedfinder.com · read 9 Oct 2026
- Developer support
- API documentation includes examples for Python, Lua and Node.js.mineseedfinder.com · read 9 Oct 2026
- Flarial integration
- A Lua module for Flarial Client renders nearby structures in an in-game ImGui overlay.github.com · read 15 Oct 2026
- Integrations
- The SeedFinder module can show nearby structures in an in-game overlay using Flarial Client.mineseedfinder.com · read 9 Oct 2026
- Intended users
- The tools are for Minecraft players who want to locate structures in a world or find a Bedrock seed matching a chosen structure layout.mineseedfinder.com · read 9 Oct 2026
- Java cracker scope
- The Java cracker searches 48-bit seeds using exact structure positions.mineseedfinder.com · read 15 Oct 2026
- Java implementation
- Java scans use cubiomes placement and target the latest Java release.github.com · read 15 Oct 2026
- Licence
- The repository uses a permissive Zlib-style licence allowing commercial use, modification and redistribution with origin attribution and altered-source marking.github.com · read 15 Oct 2026
- Limit: client naming
- A technicalminecraft commenter said the SeedCrackerX name could confuse users because another tool with that name is Java-only.reddit.com · read 15 Oct 2026
- Limit: mineshaft cracking
- The Reddit update says mineshafts cannot be used as SeedCracker input because their random generation works per chunk rather than per region.reddit.com · read 15 Oct 2026
- Local API
- A self-hosted server listens on 127.0.0.1:7890 by default and does not impose the hosted per-IP limit.mineseedfinder.com · read 15 Oct 2026
- Local executable
- The packaged Windows executable bundles the server so players do not need Python or pip installed.github.com · read 15 Oct 2026
