MCP Server

Active

MIT

io.github.sfrangulov/minirag-mcp MCP Server

io.github.sfrangulov/minirag-mcp

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What is the io.github.sfrangulov/minirag-mcp MCP server?

Local-first RAG MCP server: hybrid search over a folder of your own documents

How to install io.github.sfrangulov/minirag-mcp

Copy-paste configuration for popular MCP clients.

transport: stdio

Config generated by PluginBench — verify against the source before use.

Environment / auth

BASE_DIR
One document root; also the security boundary for file access. Defaults to the process working directory. Ignored when BASE_DIRS is set.
BASE_DIRS
JSON array of document roots, e.g. ["/docs/a", "/docs/b"]. Takes precedence over BASE_DIR. An invalid value is a hard configuration error.
DB_PATH
LanceDB index directory. Defaults to <first root>/.minirag/lancedb, so each corpus gets its own index.
CACHE_DIR
Embedding model cache. Defaults to the platform user cache dir, so the ~220 MB model is downloaded once and shared.
MODEL_NAME
fastembed model id. Changing it makes existing vectors incompatible with new queries; pair with a new DB_PATH or a full re-ingest.
MAX_FILE_SIZE
Per-file size limit in bytes, enforced before parsing.
CHUNK_TOKEN_BUDGET
Retrieval-unit size in the embedding model's own tokens. Range 16-128; the ceiling is the model's trained sequence length.
RAG_HYBRID_WEIGHT
Keyword weight in the weighted RRF fusion, range 0.0-1.0. 0 is vector-only; higher values raise the BM25 contribution.
RAG_GROUPING
Result grouping filter. 'similar' keeps only the closest group; 'related' also keeps the next one. Unset means no grouping filter.
RAG_MAX_DISTANCE
Drop results whose vector distance exceeds this value. Lower is stricter. Unset means no distance filter.
RAG_MAX_FILES
Keep chunks from at most this many best-scoring files. Unset means no per-file filter.
RAG_INSTRUCTIONS_APPEND
Extra paragraph appended to the instructions the server hands the client at connect time, for corpus-specific guidance.
ALLOW_PRIVATE_URLS
Let ingest_url fetch hosts resolving to loopback, link-local, private, reserved or unspecified addresses. Off by default.

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "minirag-mcp": {
      "command": "uvx",
      "args": [
        "minirag-mcp"
      ],
      "env": {
        "BASE_DIR": "<YOUR_BASE_DIR>",
        "BASE_DIRS": "<YOUR_BASE_DIRS>",
        "DB_PATH": "<YOUR_DB_PATH>",
        "CACHE_DIR": "<YOUR_CACHE_DIR>",
        "MODEL_NAME": "<YOUR_MODEL_NAME>",
        "MAX_FILE_SIZE": "<YOUR_MAX_FILE_SIZE>",
        "CHUNK_TOKEN_BUDGET": "<YOUR_CHUNK_TOKEN_BUDGET>",
        "RAG_HYBRID_WEIGHT": "<YOUR_RAG_HYBRID_WEIGHT>",
        "RAG_GROUPING": "<YOUR_RAG_GROUPING>",
        "RAG_MAX_DISTANCE": "<YOUR_RAG_MAX_DISTANCE>",
        "RAG_MAX_FILES": "<YOUR_RAG_MAX_FILES>",
        "RAG_INSTRUCTIONS_APPEND": "<YOUR_RAG_INSTRUCTIONS_APPEND>",
        "ALLOW_PRIVATE_URLS": "<YOUR_ALLOW_PRIVATE_URLS>"
      }
    }
  }
}

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