kb-mcp

Semantic search MCP server for the Acumatica KB Obsidian vault.
Reuses the embeddings already computed by the Smart Connections plugin (TaylorAI/bge-micro-v2, 384-dim).

Tools

Related MCP server: recall-mcp

Setup

1. Install

cd path\to\kb-mcp
python -m venv .venv
.venv\Scripts\activate
pip install -e .

2. Build the index (run once, ~2 min)

# with .venv active, from the kb-mcp folder:
set KB_VAULT_DIR=path\to\Acumatica-KB
python -m kb_mcp.build_index

This creates kb_index.npy and kb_meta.json inside src\kb_mcp\.
Re-run only if you add new notes to the vault (and re-index in Obsidian Smart Connections first).

3. Register with Claude Desktop

Add to claude_desktop_config.json (found at %APPDATA%\Claude\claude_desktop_config.json):

{
  "mcpServers": {
    "kb-mcp": {
      "command": "C:\\path\\to\\kb-mcp\\.venv\\Scripts\\python.exe",
      "args": ["-m", "kb_mcp.server"],
      "env": {
        "KB_VAULT_DIR": "C:\\path\\to\\Acumatica-KB"
      }
    }
  }
}

Restart Claude after adding.

4. First query (model download)

The TaylorAI/bge-micro-v2 model (~45 MB) downloads automatically on the first search_kb call and is cached locally by HuggingFace.

Environment variables