The current front runner in this niche is Sponge.<p>&quot;Sponge is a combination of a new API (based off of Spout&#x2F;Flow’s APIs) implemented on top of Forge, with assistance from other parts of Minecraft’s modding community (Glowstone, Cauldron, Spout, etc.).<p>It will be both a server and client API, and its target user base is pretty much anyone that wants to mod their game, including server owners. However, we may focus on the server-side portion first.<p>We invite any developer to help out.&quot;<p><a href="https:&#x2F;&#x2F;www.spongepowered.org&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.spongepowered.org&#x2F;</a><p>Development seems quite active on Github.