Exasol MCP Server

Provides an LLM access to the Exasol database via MCP tools. Includes thetools for reading the database metadata and executing data reading queries.

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🚀 Features

Collects the metadata.
- Enumerates the existing database objects, including schemas, tables, views, functions and UDF scripts.
- Provides a filtering mechanisms to use with object enumeration.
- Describes the database objects: for tables returns the list of columns and constraints; for functions and scripts - the list of input and output parameters.
- Enables keyword search of database objects.
Executes provided SQL query.

🔌️ Prerequisites

Python <https://www.python.org/>__ >= 3.10
MCP Client application, e.g. Claude Desktop <https://claude.ai/download>__

💾 Installation

Ensure the uv package is installed. If uncertain call

.. code-block:: shell

uv --version

To install uv on macOS please use brew, i.e.

.. code-block:: shell

brew install uv

For other operating systems, please follow the instructions <https://docs.astral.sh/uv/getting-started/installation/>__in the uv official documentation.

🧠 Using the server with the Claude Desktop

To enable the Claude Desktop using the Exasol MCP server, the latter must be listedin the configuration file claude_desktop_config.json. A similar configuration filewould exist for most other MCP Client applications.

To find the Claude Desktop configuration file, click on the Settings and navigate to the“Developer” tab. This section contains options for configuring MCP servers and otherdeveloper features. Click the “Edit Config” button to open the configuration file inthe editor of your choice.

Add the Exasol MCP server to the list of MCP servers as shown in this configurationexample.

.. code-block:: json

{
    "mcpServers": {
        "exasol_db": {
            "command": "uvx",
            "args": ["exasol-mcp-server@latest"],
            "env": {
                "EXA_DSN": "my-dsn",
                "EXA_USER": "my-user-name",
                "EXA_PASSWORD": "my-password"
            }
        }
    }
}

With these settings, uv will execute the latest version of the exasol-mcp-serverin an ephemeral environment, without installing it.

Alternatively, the exasol-mcp-server can be installed using the command:

.. code-block:: shell

uv tool install exasol-mcp-server@latest

For further details on installing and upgrading the server using uv see theuv Tools <https://docs.astral.sh/uv/concepts/tools/>__ documentation.

If the server is installed, the Claude configuration file should look like this:

.. code-block:: json

{
    "mcpServers": {
        "exasol_db": {
            "command": "exasol-mcp-server",
            "env": "same as above"
        }
    }
}

Please note that any changes to the Claude configuration file will only take effectafter restarting Claude Desktop.

🟠 🟢 Running modes

The MCP server can be deployed either locally, as described above, or as a remote HTTPserver. To run the server as a Direct HTTP Server execute the command:

.. code-block:: shell

exasol-mcp-server-http --host <server-host> --port <server-port>

The host defaults to 0.0.0.0.

This command provides a simple way to verify the setup for a remote MCP Server deployment.For the production environment, one might consider using an ASGI server like Unicorn. Themost flexible approach is implementing a wrapper for the Exasol MCP server that willprovide the desired control options. For further information and ideas, please check theHTTP Deployment <https://gofastmcp.com/deployment/http>__ in the FastMCP documentation.

Here is an example code creating the Exasol MCP server from a wrapper.

.. code-block:: python

from exasol.ai.mcp.server import mcp_server

exasol_mcp = mcp_server()

🔧 Configuration settings

The server is configured using environment variables and optionally a json file. In theabove example, the server is provided with the database connection parameters, all othersettings left to default. For the information on how to customize server settingsplease see the Server Setup <https://exasol.github.io/mcp-server/main/user_guide/server_setup.html>_in the User Guide.

📜 License

This project is licensed under the MIT License - see the LICENSE file for details.

Safe Harbor Statement: Exasol MCP Server & AI Solutions^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Exasol’s AI solutions (including MCP Server) are designed to enable intelligent,autonomous, and highly performant access to data through AI and LLM-powered agents.While these technologies unlock powerful new capabilities, they also introducepotentially significant risks.

By granting AI agents access to your database, you acknowledge that the behavior oflarge language models (LLMs) and autonomous agents cannot be fully predicted orcontrolled. These systems may exhibit unintended or unsafe behavior—including but notlimited to hallucinations, susceptibility to adversarial prompts, and the execution ofunforeseen actions. Such behavior may result in data leakage, unauthorized datageneration, or even data modification or deletion.

Exasol provides the tools to build AI-native workflows; however, you, as the implementerand system owner, assume full responsibility for managing these solutions within yourenvironment. This includes establishing appropriate governance, authorization controls,sandboxing mechanisms, and operational guardrails to mitigate risks to your organization,your customers, and their data.

📚 Documentation

For further details, check out the latest documentation <https://exasol.github.io/mcp-server/>_.

Exasol MCP Server