What tools does polardbx-mcp provide?
It provides three tools: `query` to run SQL, `inspect database status` to check database state, and `show all commands` to list all PolarDB-X SQL commands.
Polardbx MCP Server
@aliyun
Basic information
About Polardbx MCP Server
A Model Context Protocol (MCP) server which provides tools and resources, allowing AI agent to interact with Alibaba cloud PolarDB-X databases.
Polardbx MCP Server config
Add this server to your MCP-compatible client using the configuration below.
{
"mcpServers": {
"polardbx-mcp": {
"command": "npx",
"args": [
"polardbx-mcp"
],
"env": {
"POLARDB_X_HOST": "your_database_host",
"POLARDB_X_PORT": "your_database_port",
"POLARDB_X_USER": "your_database_user",
"POLARDB_X_PASSWORD": "your_database_password",
"POLARDB_X_DATABASE": "your_database_name"
}
}
}
}Polardbx MCP Server tools
1Run a SQL query on PolarDB-X
Overview
What is polardbx-mcp?
polardbx-mcp is a Model Context Protocol (MCP) server that provides tools and resources, allowing AI agents to interact with Alibaba Cloud PolarDB-X databases.
How to use polardbx-mcp?
Install globally via npm (npm install -g polardbx-mcp) or build from source. Configure database connection using environment variables POLARDB_X_HOST, POLARDB_X_PORT, POLARDB_X_USER, POLARDB_X_PASSWORD, and POLARDB_X_DATABASE. Then start the server and configure your MCP client (e.g., Cline) to use the server with the same environment variables.
Key features of polardbx-mcp
- Run SQL queries on PolarDB-X databases
- Inspect PolarDB-X database status
- List all available PolarDB-X SQL commands
- Access table schema information as resources
- Simple npm or source-based installation
Use cases of polardbx-mcp
- Let an AI assistant execute and analyze SQL queries on a PolarDB-X database
- Allow an AI agent to inspect database health and status
- Enable AI tools to explore table schemas for data understanding
Frequently asked questions
What resources does polardbx-mcp expose?
It exposes table schemas as resources in the format `polardbx://<database_name>/<table_name>`, providing JSON schema information including column names and data types.
What are the runtime requirements?
polardbx-mcp requires Node.js and npm. For source builds, you also need to install dependencies (`npm install`) and build the project (`npm run build`).
How is the database connection configured?
Connection is configured via environment variables: `POLARDB_X_HOST`, `POLARDB_X_PORT`, `POLARDB_X_USER`, `POLARDB_X_PASSWORD`, and `POLARDB_X_DATABASE`. These can be set in a `.env` file or passed directly to the MCP client configuration.
Is authentication supported?
Yes, authentication is handled via the `POLARDB_X_USER` and `POLARDB_X_PASSWORD` environment variables. The server uses these credentials to connect to PolarDB-X. No other authentication methods (e.g., OAuth) are mentioned.
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