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Custom Portal API ReforgedMinecraft mod for 1.21.10

Forge port of Fabrics Custom Portal API, updated for newer versions of MC.

client and servernewest supported release 1.21.10Library
Latest version
1.7.0
Minecraft
1.20.1 to 1.21.10
Java
Java 21+
Loaders
Forge, NeoForge
Licence
MIT
Downloads
127.1k
Updated
11 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Custom Portal API Reforged servers

One click and Custom Portal API Reforged is installed with the right loader, on hardware built for it.

  • 1.21.10
  • Forge
  • NeoForge
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Minecraft versions

Every version Custom Portal API Reforged declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.10Forge, NeoForge21+declared7 Oct 2025
1.21.9Forge, NeoForge21+declared30 Sept 2025
1.21.6NeoForge, Forge21+declared17 Jun 2025
1.21.5Forge, NeoForge21+declared25 Mar 2025
1.21.1NeoForge, Forge21+declared8 Aug 2024
1.20.6NeoForge, Forge21+declared29 Apr 2024
1.20.4NeoForge, Forge17+declared7 Dec 2023
1.20.2Forge, NeoForge17+declared20 Sept 2023
1.20.1NeoForge, Forge17+declared12 Jun 2023

Download

From Custom Portal API Reforged’s own host. Nothing is re-hosted here.

Most recently published release

1.7.0release28 Nov 2025

cpapireforged-neo-1.21.10-1.7.0.jar · 95 KB · for 1.21.10 · NeoForge

Download this release
c15584ee239f…
Older versions16
  • 1.6.01 Oct 20251.21.995 KB47 downloads1667134ab3a4…Get
  • 1.2.28 Jul 20251.21.192 KB16.7k downloadsc7ec668bb6b6…Get
  • 1.5.025 Jun 20251.21.694 KB57 downloads083fab2fc6bc…Get
  • 1.4.021 May 20251.21.595 KB81 downloads68f3dd9b347a…Get
  • 1.2.18 Mar 20251.21.190 KB10.0k downloads15ab29e2455f…Get
  • 1.0.1122 Nov 20241.21.185 KB1.0k downloadsc091669424b0…Get
  • 1.0.1025 Sept 20241.21.185 KB122 downloads1fffd511c436…Get
  • 1.0.830 Jun 20241.20.693 KB138 downloadsaad45db46ac9…Get
  • 1.0.630 Jun 20241.20.495 KB108 downloads7f3853351b58…Get
  • 1.0.430 Jun 20241.20.196 KB133 downloadsf254909054a2…Get
  • 1.0.715 May 20241.20.692 KB100 downloads22bf65c4197d…Get
  • 1.0.315 May 20241.20.10.1 MB166 downloads8d78c12df329…Get
  • 1.0.58 Jan 20241.20.494 KB128 downloads4a7ef636acd6…Get
  • 1.0.221 Sept 20231.20.10.1 MB45.3k downloads77891fa49fbf…Choose file on publisher ↗
  • 1.0.121 Sept 20231.20.10.1 MB151 downloadsecc2efadfb52…Get
  • 1.0.014 Aug 20231.20.10.1 MB165 downloadsa47504e274c8…Get

Frequently asked

Does Custom Portal API Reforged work on Minecraft 1.21.10?

Yes. 1.21.10 is the newest Minecraft version Custom Portal API Reforged declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Which Minecraft versions does Custom Portal API Reforged support?

Everything the author has declared, from 1.20.1 up to 1.21.10. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Custom Portal API Reforged on the client or the server?

Both. Every player needs it installed and so does the server, so anyone joining without it will be refused.

Which platform or loader does Custom Portal API Reforged support?

Forge, NeoForge. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for Custom Portal API Reforged?

Among the supported Minecraft releases above, the highest recorded requirement is Java 21 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

What licence is Custom Portal API Reforged under?

MIT, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.

How do I install Custom Portal API Reforged?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download Custom Portal API Reforged safely?

Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. When available, recorded download links go to the source for that release; verify the publisher, filename and any available checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

Cloth Config API (Fabric/Forge/NeoForge)Config Screen API for MinecraftJourneyMapReal-time map used for mapping in-game or your browser as you explore.Architectury APIAn intermediary api aimed to ease developing multiplatform mods.Jade 🔍Shows information about what you are looking at. (Hwyla/WAILA fork for Minecraft 1.16+)Collective🎓 Collective is a shared library with common code for all of Serilum's mods.Xaero's MinimapDisplays the nearby world terrain, players, mobs, entities in the corner of your screen. Lets you create waypoints which help you find the locations you've marked.

Used by

1 project lists Custom Portal API Reforged as a required dependency.

EmeraldCraftAdded some new uses to emerald. These might contribute to your improvement and make you stronger.

Details from Modrinth, where the author last updated it on 28 Nov 2025. We do not host files or republish descriptions. Available download links point to the author’s own release.

Is this information wrong or missing something? .