Semantic Tool

Semantic Tool is a microservice designed for dynamic discovery and invocation of external tools based on semantic similarity. It leverages vector embeddings to allow natural language queries to match and invoke relevant tools from a registry.

Features

• 🧠 Semantic Tool Search – Find tools using vector-based matching of descriptions.
• 🧰 Tool Invocation API – Call tools directly via REST interface.
• 🛰️ Server Management – Register and list available MCP servers.

API Overview

Tool Endpoints

• GET /api/v1/tools/list: List all available tools.
• POST /api/v1/tools/call: Invoke a tool by name and arguments.
• POST /api/v1/tools/semantic: Find relevant tools by semantic similarity to a text query.

Server Endpoints

• GET /api/v1/servers/list: List all active server sessions.

Configuration

Set config via a URL using CONFIG_LOCATION (default: file:///config.yaml).

Example config.yaml:

mcp_servers:
  timeserver:
    command: uvx
    args: ["mcp-timeserver"]
  searxng:
    command: uvx
    args: ["mcp-searxng"]
  wolframalpha:
    command: uvx
    args: ["mcp-wolfram-alpha"]
    env:
      WOLFRAM_API_KEY: "your_api_key"

embedding:
  model_name: "all-MiniLM-L6-v2"
  dim: 384

Installation

Local (via uv)

uv run semantictool

Docker (recommended)

docker compose up

Dependencies

• Python 3.13+
• FastAPI
• sentence-transformers
• easymcp
• uv