Elekto MCP for SQL Server MCP server

Elekto.Mcp.Sql

<!-- mcp-name: io.github.elekto-com-br/elekto-mcp-sql -->

Read-only MCP server for SQL Server 2017+ introspection and querying (tested on 2019 and 2022). Exposes schema metadata, object definitions, and data queries via the MCP protocol (stdio), allowing GitHub Copilot (and other MCP clients, like Claude, etc.) to understand your database structure without storing credentials in the repository.

⚠️ Privacy and Data Security Warning

MCP servers act as a bridge between your local data and AI language models. When you use this server with an AI assistant (such as GitHub Copilot, Claude, or others), the following happens:

row data — are sent back to the AI agent and transmitted to the LLM provider's infrastructure for analysis.

1. The AI agent calls tools on this server to read data from your SQL Server database.
2. The results — which may include table schemas, stored procedure definitions, or actual

(Microsoft, Anthropic, OpenAI, etc.), subject to their respective terms of service and privacy policies.

1. This means your data leaves your machine and is sent to a third-party service

Before connecting this server to any database, carefully consider:

or other sensitive information?

• What data could be read? Does it include PII, financial records, trade secrets,

and regulations?

• Who is the LLM provider and what are their data retention and privacy policies?
• Are you authorized to share this data with that third party under applicable laws

Recommendations:

and accepted this risk.

• Never connect to databases containing sensitive data unless you have explicitly assessed

specific schemas where possible).

• Use database accounts with the minimum required privileges (read-only, restricted to

is designed to be read-only and to validate all inputs, there is always a risk of unintended consequences when exposing database access to an AI agent.

• Use maxqueryrows to limit how much data can be returned in a single call.
• Prefer databases with anonymized or synthetic data for development and exploration.
• AI agents can be extremely creative in finding ways to execute a task. Altouht this server

Regardless of the precautions you take, the responsibility for any consequences arising from the use of this tool rests entirely with you. This software is provided as is with no warranties of any kind.

Available Tools

Shortened. The full README is on GitHub.