Minecraft Modding Mcp

# Install globally npm install -g mcmodding-mcp

Add to your MCP client configuration (e.g., Claude Desktop):

{ "mcpServers": { "mcmodding": { "command": "mcmodding-mcp" } } }

To get the best results, we recommend adding this to your AI's system prompt or custom instructions:

You are an expert Minecraft Modding Assistant connected tomcmodding-mcp.DO NOT rely on your internal knowledgefor modding APIs (Fabric/NeoForge) as they change frequently.ALWAYSuse the available tools:

- search_fabric_docsandget_examplefor documentation and code patterns
- search_mappingsandget_class_detailsfor Minecraft internals and method signatures
- search_mod_examplesfor battle-tested implementations from popular mods

Prioritize working code examples over theoretical explanations. When dealing with Minecraft internals, use the mappings tools to get accurate parameter names and Javadocs. If the user specifies a Minecraft version, ensure all retrieved information matches that version.

That's it! Your AI assistant now has access to comprehensive Minecraft modding resources.

Manage your documentation databases with the built-in CLI:

# Run the database manager npx mcmodding-mcp manage

- Install- Download databases you don't have yet
- Update- Check for and apply database updates
- Re-download- Restore deleted or corrupted databases

The manager shows version information and highlights available updates:

# Clone repository git clone https://github.com/OGMatrix/mcmodding-mcp.git cd mcmodding-mcp # Install dependencies npm install # Run in development mode npm run dev

# Development npm run dev # Watch mode with hot reload npm run typecheck # TypeScript type checking npm run lint # ESLint npm run test # Run tests npm run format # Prettier formatting # Production npm run build # Build TypeScript npm run build:prod # Build with fresh documentation index npm run index-docs # Index documentation with embeddings # Database Management npx mcmodding-mcp manage # Interactive database installer/updater

mcmodding-mcp/ ├── src/ │ ├── index.ts # MCP server entry point │ ├── db-versioning.ts # Auto-update system │ ├── indexer/ │ │ ├── crawler.ts # Documentation crawler │ │ ├── chunker.ts # Text chunking │ │ ├── embeddings.ts # Semantic embeddings │ │ ├── store.ts # SQLite database │ │ └── sitemap.ts # Sitemap parsing │ ├── services/ │ │ ├── search-service.ts # Search logic │ │ └── concept-service.ts # Concept explanations │ └── tools/ │ ├── searchDocs.ts # search_fabric_docs handler │ ├── getExample.ts # get_example handler │ └── explainConcept.ts # explain_fabric_concept handler ├── scripts/ │ └── index-docs.ts # Documentation indexing script ├── data/ │ ├── mcmodding-docs.db # SQLite database │ └── db-manifest.json # Version manifest └── dist/ # Compiled JavaScript

-- Documents: Full documentation pages CREATE TABLE documents ( id INTEGER PRIMARY KEY, url TEXT UNIQUE NOT NULL, title TEXT NOT NULL, content TEXT NOT NULL, category TEXT NOT NULL, loader TEXT NOT NULL, -- fabric | neoforge | shared minecraft_version TEXT, hash TEXT NOT NULL -- For change detection ); -- Chunks: Searchable content units CREATE TABLE chunks ( id TEXT PRIMARY KEY, document_id INTEGER NOT NULL, chunk_type TEXT NOT NULL, -- title | section | code | full content TEXT NOT NULL, section_heading TEXT, code_language TEXT, word_count INTEGER, has_code BOOLEAN ); -- Embeddings: Semantic search vectors CREATE TABLE embeddings ( chunk_id TEXT PRIMARY KEY, embedding BLOB NOT NULL, -- 384-dim Float32Array dimension INTEGER NOT NULL, model TEXT NOT NULL -- Xenova/all-MiniLM-L6-v2 ); -- FTS5 indexes for fast text search CREATE VIRTUAL TABLE documents_fts USING fts5(...); CREATE VIRTUAL TABLE chunks_fts USING fts5(...);

SetDB_PATHto a custom location to manage updates manually:

DB_PATH=/path/to/my/database.db mcmodding-mcp

We're actively developing mcmodding-mcp and want to hear from you!

- Feature requests- What tools would make your modding easier?
- New documentation sources- Know a great modding resource we should index?
- Workflow improvements- How could the tools work better for your use case?

- Incorrect search results?
- Missing or outdated documentation?
- Tool not working as expected?

🎮 Built with ❤️ for the Minecraft modding community

If you find this project useful, please consider giving it a ⭐!

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