Local RAG MCP server with hybrid search, PDF/DOCX support, and zero-config setup
Connect Runs on your machine
claude mcp add rag-vault -e BASE_DIR=<BASE_DIR> -e DB_PATH=<DB_PATH> -e CACHE_DIR=<CACHE_DIR> -e MODEL_NAME=<MODEL_NAME> -e RAG_HYBRID_WEIGHT=<RAG_HYBRID_WEIGHT> -e RAG_GROUPING=<RAG_GROUPING> -- npx -y @robthepcguy/[email protected]{
"mcpServers": {
"rag-vault": {
"command": "npx",
"args": [
"-y",
"@robthepcguy/[email protected]"
],
"env": {
"BASE_DIR": "<BASE_DIR>",
"DB_PATH": "<DB_PATH>",
"CACHE_DIR": "<CACHE_DIR>",
"MODEL_NAME": "<MODEL_NAME>",
"RAG_HYBRID_WEIGHT": "<RAG_HYBRID_WEIGHT>",
"RAG_GROUPING": "<RAG_GROUPING>"
}
}
}
}{
"mcpServers": {
"rag-vault": {
"command": "npx",
"args": [
"-y",
"@robthepcguy/[email protected]"
],
"env": {
"BASE_DIR": "<BASE_DIR>",
"DB_PATH": "<DB_PATH>",
"CACHE_DIR": "<CACHE_DIR>",
"MODEL_NAME": "<MODEL_NAME>",
"RAG_HYBRID_WEIGHT": "<RAG_HYBRID_WEIGHT>",
"RAG_GROUPING": "<RAG_GROUPING>"
}
}
}
}{
"servers": {
"rag-vault": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@robthepcguy/[email protected]"
],
"env": {
"BASE_DIR": "<BASE_DIR>",
"DB_PATH": "<DB_PATH>",
"CACHE_DIR": "<CACHE_DIR>",
"MODEL_NAME": "<MODEL_NAME>",
"RAG_HYBRID_WEIGHT": "<RAG_HYBRID_WEIGHT>",
"RAG_GROUPING": "<RAG_GROUPING>"
}
}
}
}Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
BASE_DIROptional | Base directory for document storage (defaults to current working directory) |
DB_PATHOptional | Path to LanceDB database directory (defaults to ./lancedb/) |
CACHE_DIROptional | Directory where Transformers.js models are cached (defaults to ./models/) |
MODEL_NAMEOptional | Embedding model name (defaults to Xenova/all-MiniLM-L6-v2) |
RAG_HYBRID_WEIGHTOptional | Keyword boost strength for hybrid search. 0.0 = semantic only, 1.0 = keyword only. Default 0.6 |
RAG_GROUPINGOptional | Grouping mode: 'similar' (top group only) or 'related' (top 2 groups) |
Details
| Package | @robthepcguy/[email protected] (NPM, stdio) |
| First published | 14 Feb 2026 |
| Last updated | 14 Feb 2026 |
| Registry name | io.github.RobThePCGuy/rag-vault |
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