MCP servers
5 servers that let your AI assistant read data and take actions in the tools you use.
mcp-server
sampad1990
This project implements an MCP-compliant server that allows AI models to discover and invoke tools through a standardized protocol. The server is designed to be modular, with each tool implemented as a separate Python module.
vigilant-adventure
chuckmen
hey,i wanted to play with some mods but when i try to open the game it says; The game crashed whilst initializing game Error: java.lang.NoClassDefFoundError: cpw/mods/fml/common/IPlayerTracker Exit Code: -1 what can i do to make it work?the log is; ---- Minecraft Crash Report ---- WARNING: coremods are present: MekanismCoremod (Mekanism-1.12.2-9.8.3.390.jar) MicdoodlePlugin (MicdoodleCore-1.12.2-4.0.2.280.jar) WarpDriveCore (WarpDrive-1.12.2-1.5.21.jar) weaponlib (mw2.0-0.4.4.6mc1.12.2.jar) Inventory Tweaks Coremod (InventoryTweaks-1.63 (1).jar) SteveKunGLibPlugin (SteveKunG's-Lib-1.12.2-1.1.10.jar) Contact their authors BEFORE contacting forge // Don't be sad. I'll do better next time, I promise! Time: 3/20/21 4:22 AM Description: Initializing game java.lang.NoClassDefFoundError: cpw/mods/fml/common/IPlayerTracker at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:348) at net.minecraftforge.fml.common.FMLModContainer.constructMod(FMLModContainer.java:539) at sun.reflect.GeneratedMethodAccessor10.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:91) at com.google.common.eventbus.Subscriber$SynchronizedSubscriber.invokeSubscriberMethod(Subscriber.java:150) at com.google.common.eventbus.Subscriber$1.run(Subscriber.java:76) at com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:399) at com.google.common.eventbus.Subscriber.dispatchEvent(Subscriber.java:71) at com.google.common.eventbus.Dispatcher$PerThreadQueuedDispatcher.dispatch(Dispatcher.java:116) at com.google.common.eventbus.EventBus.post(EventBus.java:217) at net.minecraftforge.fml.common.LoadController.sendEventToModContainer(LoadController.java:219) at net.minecraftforge.fml.common.LoadController.propogateStateMessage(LoadController.java:197) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:91) at com.google.common.eventbus.Subscriber$SynchronizedSubscriber.invokeSubscriberMethod(Subscriber.java:150) at com.google.common.eventbus.Subscriber$1.run(Subscriber.java:76) at com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:399) at com.google.common.eventbus.Subscriber.dispatchEvent(Subscriber.java:71) at com.google.common.eventbus.Dispatcher$PerThreadQueuedDispatcher.dispatch(Dispatcher.java:116) at com.google.common.eventbus.EventBus.post(EventBus.java:217) at net.minecraftforge.fml.common.LoadController.distributeStateMessage(LoadController.java:136) at net.minecraftforge.fml.common.Loader.loadMods(Loader.java:595) at net.minecraftforge.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:232) at net.minecraft.client.Minecraft.func71384a(Minecraft.java:467) at net.minecraft.client.Minecraft.func99999d(Minecraft.java:378) at net.minecraft.client.main.Main.main(SourceFile:123) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) at net.minecraft.launchwrapper.Launch.main(Launch.java:28) Caused by: java.lang.ClassNotFoundException: cpw.mods.fml.common.IPlayerTracker at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 38 more Caused by: java.lang.NullPointerException at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:182) ... 40 more A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- Head -- Thread: Client thread Stacktrace: at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:348) at net.minecraftforge.fml.common.FMLModContainer.constructMod(FMLModContainer.java:539) at sun.reflect.GeneratedMethodAccessor10.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:91) at com.google.common.eventbus.Subscriber$SynchronizedSubscriber.invokeSubscriberMethod(Subscriber.java:150) at com.google.common.eventbus.Subscriber$1.run(Subscriber.java:76) at com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:399) at com.google.common.eventbus.Subscriber.dispatchEvent(Subscriber.java:71) at com.google.common.eventbus.Dispatcher$PerThreadQueuedDispatcher.dispatch(Dispatcher.java:116) at com.google.common.eventbus.EventBus.post(EventBus.java:217) at net.minecraftforge.fml.common.LoadController.sendEventToModContainer(LoadController.java:219) at net.minecraftforge.fml.common.LoadController.propogateStateMessage(LoadController.java:197) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at com.google.common.eventbus.Subscriber.invokeSubscriberMethod(Subscriber.java:91) at com.google.common.eventbus.Subscriber$SynchronizedSubscriber.invokeSubscriberMethod(Subscriber.java:150) at com.google.common.eventbus.Subscriber$1.run(Subscriber.java:76) at com.google.common.util.concurrent.MoreExecutors$DirectExecutor.execute(MoreExecutors.java:399) at com.google.common.eventbus.Subscriber.dispatchEvent(Subscriber.java:71) at com.google.common.eventbus.Dispatcher$PerThreadQueuedDispatcher.dispatch(Dispatcher.java:116) at com.google.common.eventbus.EventBus.post(EventBus.java:217) at net.minecraftforge.fml.common.LoadController.distributeStateMessage(LoadController.java:136) at net.minecraftforge.fml.common.Loader.loadMods(Loader.java:595) at net.minecraftforge.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:232) at net.minecraft.client.Minecraft.func71384a(Minecraft.java:467) -- Initialization -- Details: Stacktrace: at net.minecraft.client.Minecraft.func99999d(Minecraft.java:378) at net.minecraft.client.main.Main.main(SourceFile:123) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:497) at net.minecraft.launchwrapper.Launch.launch(Launch.java:135) at net.minecraft.launchwrapper.Launch.main(Launch.java:28) -- System Details -- Details: Minecraft Version: 1.12.2 Operating System: Windows 7 (amd64) version 6.1 Java Version: 1.8.051, Oracle Corporation Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation Memory: 446000992 bytes (425 MB) / 805306368 bytes (768 MB) up to 6442450944 bytes (6144 MB) JVM Flags: 8 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformancejavaw.exeminecraft.exe.heapdump -Xmx6G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0 FML: MCP 9.42 Powered by Forge 14.23.5.2854 Optifine OptiFine1.12.2HDUG5pre1 53 mods loaded, 53 mods active States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored | State | ID | Version | Source | Signature | |:----- |:------------------------- |:------------------------ |:-------------------------------------------------- |:---------------------------------------- | | LC | minecraft | 1.12.2 | minecraft.jar | None | | LC | mcp | 9.42 | minecraft.jar | None | | LC | FML | 8.0.99.99 | forge-1.12.2-14.23.5.2854.jar | e3c3d50c7c986df74c645c0ac54639741c90a557 | | LC | forge | 14.23.5.2854 | forge-1.12.2-14.23.5.2854.jar | e3c3d50c7c986df74c645c0ac54639741c90a557 | | LC | micdoodlecore | | minecraft.jar | None | | LC | WarpDriveCore | 1.12.2-1.5.21.SNAPSHOT | minecraft.jar | None | | LC | appliedenergistics2 | rv6-stable-7 | appliedenergistics2-rv6-stable-7.jar | dfa4d3ac143316c6f32aa1a1beda1e34d42132e5 | | LC | codechickenlib | 3.2.3.358 | CodeChickenLib-1.12.2-3.2.3.358-universal.jar | f1850c39b2516232a2108a7bd84d1cb5df93b261 | | LC | redstoneflux | 2.1.1 | RedstoneFlux-1.12-2.1.1.1-universal.jar | None | | LC | brandonscore | 2.4.19 | BrandonsCore-1.12.2-2.4.19.214-universal.jar | None | | LC | buildinggadgets | 2.8.0 | BuildingGadgets-2.8.0.jar | None | | LC | cofhcore | 4.6.3 | CoFH-Core-1.12.2.jar | None | | LC | cofhworld | 1.4.0 | CoFHWorld-1.12.2-1.4.0.1-universal.jar | None | | LC | extendedrenderer | v1.0 | coroutil-1.12.1-1.2.37.jar | None | | LC | coroutil | 1.12.1-1.2.37 | coroutil-1.12.1-1.2.37.jar | None | | LC | configmod | v1.0 | coroutil-1.12.1-1.2.37.jar | None | | LC | cyberware | 0.2.11.26 | cyberware-1.12.2-0.2.11.26.jar | None | | LC | cdm | 0.4.1 | device-mod-0.4.1-1.12.2.jar | None | | LC | thermalfoundation | 2.6.7 | ThermalFoundation-1.12.2-2.6.7.1-universal.jar | None | | LC | draconicevolution | 2.3.27 | Draconic-Evolution-1.12.2-2.3.27.353-universal.jar | None | | LC | mantle | 1.12-1.3.3.55 | Mantle-1.12-1.3.3.55 (1).jar | None | | LC | jei | 4.16.1.301 | jei1.12.2-4.16.1.301.jar | None | | LC | tconstruct | 1.12.2-2.13.0.183 | TConstruct-1.12.2-2.13.0.183 (1).jar | None | | L | galacticraftcore | 4.0.2.280 | GalacticraftCore-1.12.2-4.0.2.280.jar | None | | L | galacticraftplanets | 4.0.2.280 | Galacticraft-Planets-1.12.2-4.0.2.280.jar | None | | L | mjrlegendslib | 1.12.2-1.2.0 | MJRLegendsLib-1.12.2-1.2.0.jar | None | | L | forestry | 5.8.2.387 | forestry1.12.2-5.8.2.387.jar | None | | L | mekanism | 1.12.2-9.8.3.390 | Mekanism-1.12.2-9.8.3.390.jar | None | | L | numina | 1.12.2-1.0.38 | Numina-1.12.2-1.0.38.jar | None | | L | powersuits | 1.12.2-1.0.46 | ModularPowersuits-1.12.2-1.0.46.jar | None | | L | extraplanets | 1.12.2-0.7.2 | ExtraPlanets-1.12.2-0.7.2.jar | None | | L | hbm | hbm-1.3.7A-1.12.2 | hbm-1.3.7.1a.jar | None | | L | icbmclassic | 1.12.2-4.0.1.75 | ICBM-classic-1.12.2-4.0.1b75.jar | None | | L | inventorytweaks | 1.63+release.109.220f184 | InventoryTweaks-1.63 (1).jar | None | | L | lostcities | 2.0.22 | lostcities-1.12-2.0.22.jar | None | | L | mekanismgenerators | 1.12.2-9.8.3.390 | MekanismGenerators-1.12.2-9.8.3.390.jar | None | | L | stevekung'slib | 1.1.10 | SteveKunG's-Lib-1.12.2-1.1.10.jar | None | | L | moreplanets | 2.2.1 | More-Planets-1.12.2-2.2.1-GC280.jar | None | | L | mw | 0.4.4.6 | mw2.0-0.4.4.6mc1.12.2.jar | None | | L | nuclearcraft | 2.18y | NuclearCraft-2.18y-1.12.2.jar | None | | L | thermalexpansion | 5.5.7 | ThermalExpansion-1.12.2-5.5.7.1-universal.jar | None | | L | omlib | 3.1.4-249 | omlib-1.12.2-3.1.4-249.jar | None | | L | openmodularturrets | 3.1.12-378 | openmodularturrets-1.12.2-3.1.12-378.jar | None | | L | orespawn | 1.0.0 | orespawnmc1.12-development0.7.jar | None | | L | roughmobs | 2.0.0 | roughmobs2-1.12.22.0.15.jar | None | | L | sgcraft | 2.0.3 | SGCraft-2.0.5.jar | None | | L | starfallstarwarsishmod | 1.0.0 | Starfall1.1.jar | None | | L | thermaldynamics | 2.5.6 | ThermalDynamics-1.12.2-2.5.6.1-universal.jar | None | | L | thermaltinkering | 1.0 | ThermalTinkering-1.12.2-2.0.1.jar | None | | L | tinkertoolleveling | 1.12.2-1.1.0.DEV.b23e769 | TinkerToolLeveling-1.12.2-1.1.0.jar | None | | L | matteroverdrive | 0.7.0.0 | MatterOverdrive-1.12.2-0.7.1.0-universal.jar | None | | L | warpdrive | 1.12.2-1.5.21.SNAPSHOT | WarpDrive-1.12.2-1.5.21.jar | None | | L | zombieawareness | 1.12.1-1.11.16 | zombieawareness-1.12.1-1.11.16.jar | None | Loaded coremods (and transformers): MekanismCoremod (Mekanism-1.12.2-9.8.3.390.jar) mekanism.coremod.KeybindingMigrationHelper MicdoodlePlugin (MicdoodleCore-1.12.2-4.0.2.280.jar) micdoodle8.mods.miccore.MicdoodleTransformer WarpDriveCore (WarpDrive-1.12.2-1.5.21.jar) cr0s.warpdrive.core.ClassTransformer weaponlib (mw2.0-0.4.4.6mc1.12.2.jar) com.vicmatskiv.weaponlib.core.WeaponlibClassTransformer Inventory Tweaks Coremod (InventoryTweaks-1.63 (1).jar) invtweaks.forge.asm.ContainerTransformer SteveKunGLibPlugin (SteveKunG's-Lib-1.12.2-1.1.10.jar) GL info: ' Vendor: 'ATI Technologies Inc.' Version: '4.5.13506 Compatibility Profile Context 23.20.15017.3010' Renderer: 'AMD Radeon R7 200 Series' AE2 Version: stable rv6-stable-7 for Forge 14.23.5.2768 Pulsar/tconstruct loaded Pulses: - TinkerCommons (Enabled/Forced) - TinkerWorld (Enabled/Not Forced) - TinkerTools (Enabled/Not Forced) - TinkerHarvestTools (Enabled/Forced) - TinkerMeleeWeapons (Enabled/Forced) - TinkerRangedWeapons (Enabled/Forced) - TinkerModifiers (Enabled/Forced) - TinkerSmeltery (Enabled/Not Forced) - TinkerGadgets (Enabled/Not Forced) - TinkerOredict (Enabled/Forced) - TinkerIntegration (Enabled/Forced) - TinkerFluids (Enabled/Forced) - TinkerMaterials (Enabled/Forced) - TinkerModelRegister (Enabled/Forced) Launched Version: 1.12.2-forge-14.23.5.2854 LWJGL: 2.9.4 OpenGL: AMD Radeon R7 200 Series GL version 4.5.13506 Compatibility Profile Context 23.20.15017.3010, ATI Technologies Inc. GL Caps: Using GL 1.3 multitexturing. Using GL 1.3 texture combiners. Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported. Shaders are available because OpenGL 2.1 is supported. VBOs are available because OpenGL 1.5 is supported. Using VBOs: Yes Is Modded: Definitely; Client brand changed to 'fml,forge' Type: Client (mapclient.txt) Resource Packs: Current Language: English (US) Profiler Position: N/A (disabled) CPU: 4x Intel(R) Core(TM) i3-4130 CPU @ 3.40GHz OptiFine Version: OptiFine1.12.2HDUG5pre1 OptiFine Build: 20201206-232027 Render Distance Chunks: 15 Mipmaps: 4 Anisotropic Filtering: 1 Antialiasing: 0 Multitexture: false Shaders: null OpenGlVersion: 4.5.13506 Compatibility Profile Context 23.20.15017.3010 OpenGlRenderer: AMD Radeon R7 200 Series OpenGlVendor: ATI Technologies Inc. CpuCount: 4 please help me :)))
Integrates with PostgreSQL databases to enable schema management, data migration, performance monitoring, and security configuration through direct database operations without requiring separate management tools.
mcp-memory-graph
DMontgomery40
Memory Graph implementation for Model Context Protocol (MCP) with separate Python and TypeScript implementations
Neo4j
neo4j-contrib
Neo4j graph database server (schema + read/write-cypher) and separate graph database backed memory