A .NET-powered Model Context Protocol (MCP) server for Microsoft SQL Server.
mssql-mcp is an MCP project maintained in the aaronontheweb/mssql-mcp repository. The maintainer describes its purpose as “A .NET-powered Model Context Protocol (MCP) server for Microsoft SQL Server”. Read the project documentation for the complete scope.
The project provides a local client configuration using docker. Follow the repository’s build and installation steps before copying it, and replace example paths with the paths on your own computer.
The example declares MSSQL_CONNECTION_STRING. Secret-looking values have been replaced with placeholders. Required and optional labels are shown only when the documentation states them.
Project documentation · Repository · Discovery listing. This profile records the public documentation checked on 2026-10-08.
Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.
| Tool | What it does |
|---|---|
| execute_sql | Execute any SQL query against the database |
| list_tables | List all tables with schema, name, type, and row count |
| list_schemas | List all available schemas/databases in the SQL Server instance |
{
"mcpServers": {
"mssql": {
"command": "docker",
"args": [
"run",
"-i",
"--rm",
"-e",
"MSSQL_CONNECTION_STRING",
"mssql-mcp:latest"
],
"env": {
"MSSQL_CONNECTION_STRING": "Server=host.docker.internal,1533; Database=MyDb; User Id=myUser; Password=My(!)Password;TrustServerCertificate=true;"
}
}
}
}From the project documentation. Replace placeholders and example paths before connecting.
| Variable | Description | Required |
|---|---|---|
| MSSQL_CONNECTION_STRING | Declared in the maintainer’s client configuration. | Check documentation |
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