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wren-engine

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by Canner

Overview

The Wren MCP Server acts as a semantic layer for the Wren Engine, providing a Model Context Protocol (MCP) interface for AI agents to interact with enterprise data sources, enabling accurate and governed data querying through semantic understanding.

Installation

Run Command
uv run app/wren.py

Environment Variables

  • WREN_URL
  • CONNECTION_INFO_FILE
  • MDL_PATH

Security Notes

The system correctly handles sensitive database connection information (e.g., credentials) via environment variables or external configuration files, preventing hardcoded secrets. Internal 'eval' functions in the Rust core are type-safe expression evaluators, not general-purpose code execution, limiting injection risks. Primary security considerations are operational, focusing on securing the network endpoints of the distributed components (MCP server, Ibis server, Wren Engine) and ensuring appropriate file permissions for configuration and MDL files.

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Stats

Interest Score57
Security Score8
Cost ClassMedium
Avg Tokens1000
Stars512
Forks142
Last Update2025-12-08

Tags

AI Agent IntegrationSemantic LayerData GovernanceSQL PlanningModel Context Protocol