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MCP Server MariaDB: Secure Read-Only Access for Effortless Data Feasts - MCP Implementation

MCP Server MariaDB: Secure Read-Only Access for Effortless Data Feasts

MCP Server MariaDB: Secure, read-only MariaDB access that lets your apps feast on data without lifting a sweat—effortless, efficient, and endlessly reliable.

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About MCP Server MariaDB

What is MCP Server MariaDB: Secure Read-Only Access for Effortless Data Feasts?

MCP Server MariaDB is a purpose-built interface that enables secure, read-only access to MariaDB databases. Designed for developers and analysts, it simplifies data retrieval while maintaining stringent security controls. By exposing database schemas and executing query operations without write permissions, this server acts as a reliable middle-tier for applications needing consistent, up-to-date data snapshots.

Key Features of MCP Server MariaDB: Secure Read-Only Access for Effortless Data Feasts

  • Schema Visibility: Dynamically lists available database schemas for seamless discovery
  • Read-Only Enforcement: Query tool restricts operations to SELECT statements only
  • Zero-Touch Configuration: Pre-built CLI and API interfaces reduce setup complexity
  • Cross-Platform Support: Validated workflows for macOS and Windows environments

MCP Server MariaDB Features

How to Use MCP Server MariaDB: Secure Read-Only Access for Effortless Data Feasts

Dependency Setup (macOS Example)

  1. Install MariaDB Connector/C via Homebrew: brew install mariadb-connector-c
  2. Configure environment variables: 
    export PATH="/opt/homebrew/opt/mariadb-connector-c/bin:$PATH"
    export MARIADB_CONFIG=$(brew --prefix mariadb-connector-c)/bin/mariadb_config
  3. Reinitialize server connection using uv add mariadb

Claude Desktop Integration

Edit configuration files at:

  • Mac: ~/Library/Application Support/Claude/claude_desktop_config.json
  • Windows: %APPDATA%\Claude\claude_desktop_config.json
Add server configuration with placeholder replacements for:
  • Database credentials
  • Executable paths for uvx and uv
  • Source code directories

Use Cases for MCP Server MariaDB

  • Real-time analytics dashboards
  • Automated report generation
  • Third-party API integrations requiring database access
  • QA environments needing production data snapshots

MCP Server MariaDB FAQ

FAQ for MCP Server MariaDB

Q: "Encountering OSError: [Errno 126] during setup"
A: Confirm MariaDB Connector/C is installed and environment variables are properly set. Run echo $MARIADB_CONFIG to validate path resolution.
Q: "How to restrict query execution time?"
A: Configure MariaDB's max_execution_time parameter at the database level or implement client-side query timeouts in application code.
Q: "Can this server handle large datasets?"
A: Yes, but ensure proper indexing and consider pagination strategies for result sets exceeding 1MB. Memory limits can be adjusted via MariaDB config files.

Content

mcp-server-mariadb

An MCP server implementation for retrieving data from mariadb

Features

Resources

Expose schema list in database

Tools

  • query_database
    • Execute read-only operations against MariDB

dependency

install mariadb

  • mac

    • when install mariadb, maybe raise os error below. you can resolve by installing mariadb-connector-c.

    OSError: mariadb_config not found.

      This error typically indicates that MariaDB Connector/C, a dependency which
  must be preinstalled, is not found.
  If MariaDB Connector/C is not installed, see installation instructions
  If MariaDB Connector/C is installed, either set the environment variable
  MARIADB_CONFIG or edit the configuration file 'site.cfg' to set the
   'mariadb_config' option to the file location of the mariadb_config utility.
  1. execute brew install mariadb-connector-c
  2. execute echo 'export PATH="/opt/homebrew/opt/mariadb-connector-c/bin:$PATH"' >> ~/.bashrc
  3. set environment variable export MARIADB_CONFIG=$(brew --prefix mariadb-connector-c)/bin/mariadb_config
  4. execute uv add mariadb again.

Usage with Claude Desktop

Configuration File

Paths to Claude Desktop config file:

  • MacOS : ~/Library/Application Support/Claude/claude_desktop_config.json

  • Windows : %APPDATA%\Claude\claude_desktop_config.json

    Add this configuration to enable published servers

    {
    "mcpServers": {
    "mcp_server_mariadb": {
    "command": "/PATH/TO/uvx"
    "args": [
    "mcp-server-mariadb",
    "--host",
    "${DB_HOST}",
    "--port",
    "${DB_PORT}",
    "--user",
    "${DB_USER}",
    "--password",
    "${DB_PASSWORD}",
    "--database",
    "${DB_NAME}"
    ]
    }
    }
    }

Note : Replace these placeholders with actual paths:

  • /PATH/TO/uvx: Full path to uvx executable
Add this configuration to enable development/unpublished servers 
{
    "mcpServers": {
        "mcp_server_mariadb": {
            "command": "/PATH/TO/uv",
            "args": [
                "--directory",
                "/YOUR/SOURCE/PATH/mcp-server-mariadb/src/mcp_server_mariadb",
                "run",
                "server.py"
            ],
            "env": {
                "MARIADB_HOST": "127.0.0.1",
                "MARIADB_USER": "USER",
                "MARIADB_PASSWORD": "PASSWORD",
                "MARIADB_DATABASE": "DATABASE",
                "MARIADB_PORT": "3306"
            }
        }
    }
}

Note : Replace these placeholders with actual paths:

  • /PATH/TO/uv: Full path to UV executable
  • /YOUR/SOURCE/PATH/mcp-server-mariadb/src/mcp_server_mariadb: Path to server source code

License

This mcp server is licensed under the MIT license. please see the LICENSE file in the repository.

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