oracle-db-mcp

Model Context Protocol server to access oracle

Note: This repository is based on hdcola/mcp-server-oracle. Original work by hdcola.

Quickstart

Prerequisites

• Python 3.12+ or Docker
• Claude Desktop or other MCP client
• Oracle Database connection credentials

Installation

Choose one of the following methods:

Option 1: Using uvx (Recommended)

uvx oracle-db-mcp

Option 2: Using pipx

pipx install oracle-db-mcp

Option 3: Using Docker

docker pull ghcr.io/kuass/oracle-db-mcp

Configuration

Add the server configuration to your Claude Desktop config file:

MacOS: ~/Library/Application Support/Claude/claude_desktop_config.json
Windows: %APPDATA%/Claude/claude_desktop_config.json

Using uvx

{
  "mcpServers": {
    "oracle-db-mcp": {
      "command": "uvx",
      "args": [
        "oracle-db-mcp"
      ],
      "env": {
        "ORACLE_CONNECTION_STRING": "username/password@hostname:port/service_name"
      }
    }
  }
}

Using pipx

{
  "mcpServers": {
    "oracle-db-mcp": {
      "command": "oracle-db-mcp",
      "args": [],
      "env": {
        "ORACLE_CONNECTION_STRING": "username/password@hostname:port/service_name"
      }
    }
  }
}

Using Docker

{
  "mcpServers": {
    "oracle-db-mcp": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "ORACLE_CONNECTION_STRING",
        "ghcr.io/kuass/oracle-db-mcp"
      ],
      "env": {
        "ORACLE_CONNECTION_STRING": "username/password@hostname:port/service_name"
      }
    }
  }
}

The Docker image automatically remaps localhost to work from inside the container:

• MacOS/Windows: Uses host.docker.internal
• Linux: Uses the host IP address

Using uv (Development)

{
  "mcpServers": {
    "oracle-db-mcp": {
      "command": "uv",
      "args": [
        "run",
        "--directory",
        "/path/to/oracle-db-mcp",
        "oracle-db-mcp"
      ],
      "env": {
        "ORACLE_CONNECTION_STRING": "username/password@hostname:port/service_name"
      }
    }
  }
}

Thick Mode (Optional)

By default, the server uses Thin mode which doesn't require Oracle Client installation. To use Thick mode:

{
  "mcpServers": {
    "oracle-db-mcp": {
      "command": "uvx",
      "args": [
        "oracle-db-mcp"
      ],
      "env": {
        "ORACLE_CONNECTION_STRING": "username/password@hostname:port/service_name",
        "ORACLE_THICK_MODE": "true",
        "ORACLE_CLIENT_LIB_DIR": "/path/to/oracle/instantclient"
      }
    }
  }
}

SSE Transport

Oracle MCP supports Server-Sent Events (SSE) transport, allowing multiple MCP clients to share one server.

Start SSE Server

Using Docker

docker run -p 8000:8000 \
  -e ORACLE_CONNECTION_STRING="username/password@hostname:port/service_name" \
  ghcr.io/kuass/oracle-db-mcp --transport=sse

Using uvx

ORACLE_CONNECTION_STRING="username/password@hostname:port/service_name" \
  uvx oracle-db-mcp --transport=sse

Configure MCP Client

For Cursor or Cline (mcp.json or cline_mcp_settings.json):

{
  "mcpServers": {
    "oracle-db-mcp": {
      "type": "sse",
      "url": "http://localhost:8000/sse"
    }
  }
}

For Windsurf (mcp_config.json):

{
  "mcpServers": {
    "oracle-db-mcp": {
      "type": "sse",
      "serverUrl": "http://localhost:8000/sse"
    }
  }
}

Available Tools

Schema Exploration

• list_tables: Get a list of all tables in the database
• list_schemas: Get a list of all schemas in the database
• list_objects: List database objects (tables, views, sequences, packages) in a schema
• get_object_details: Get detailed information about a database object (columns, constraints, indexes)
• describe_table: Get detailed information about a table

Query Execution

• read_query: Execute SELECT queries
• exec_dml_sql: Execute INSERT/UPDATE/DELETE/TRUNCATE statements
• exec_ddl_sql: Execute CREATE/DROP/ALTER statements
• exec_pro_sql: Execute PL/SQL code blocks

Performance Analysis

• get_top_queries: Get the slowest queries based on elapsed time
• explain_query: Get the execution plan for a SQL query
• analyze_db_health: Perform comprehensive database health checks (tablespace usage, session status, wait events, invalid objects)

License

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