PolarDB for MySQL uses GateRook’s MySQL connector. Alibaba Cloud's PolarDB for MySQL.
The screenshots show GateRook 2.0.0: the PolarDB for MySQL form, the endpoint selector, and this connector’s actual tool preview. The form and preview have not been saved. Select a screenshot to open it at full size.
1. Create a connection and enter the settings
In GateRook, open Connections, select Add connection, search for PolarDB for MySQL, choose its card and select Continue to configure.
Use a PolarDB for MySQL cluster and copy its selected cluster or primary endpoint and port.
Prepare a database account and make sure the cluster’s access rules allow connections from your computer’s network.
Enter a Name, for example polardb-demo. Your AI app uses this name to choose the connection.
Choose PolarDB for MySQL. Enter a Name, endpoint Host, Port, and the database User and Password.
When TLS is enabled on the chosen endpoint, set SSL mode to verify-full and provide the downloaded CA in CA certificate (PEM) if needed.
Select Load databases and choose the databases your AI should access. Use Database allowlist if you need a narrower boundary within that selection.
Choose Development, Staging or Production to match the service. Review the connector’s limit and access settings before continuing.

2. Test the connection and add it to an endpoint
Select Continue to test. GateRook checks the settings from your computer. Review the result and resolve any connection, certificate or permission error before continuing.
If a connection fails, check the cluster endpoint, network access and that TLS is configured for that endpoint. The primary and cluster endpoints may have different routing behavior.
After the test passes, select Continue to add to an endpoint. Choose the endpoint your AI app uses, review its tool modes, then select Save connection. GateRook offers default as the starter endpoint.

3. Use the connection from your AI IDE
After saving PolarDB for MySQL on the endpoint and passing its connection test, ask your AI app to use polardb-demo, or the name you chose. If its tools are missing, confirm the endpoint assignment and refresh the MCP connection or start a new chat.
The preview below shows this connector’s default tools before saving. The table explains what each tool can do; connection settings, credentials and endpoint policies can restrict access further.

Start with a small read request. Replace example resource names with existing resources your connection may access. Open Activity after the call to inspect its connection, tool, arguments, policy decision and result metadata.
Ask your AI, for example
- “List the databases and tables exposed by my PolarDB connection.”
- “Describe the selected PolarDB MySQL table.”
- “Count orders by status in the selected PolarDB database.”
| Tool | What it does | Starts as |
|---|---|---|
sql_list_schemas | List tables and views in the selected MySQL-compatible database, within the connection and policy restrictions. | Read only |
sql_describe_table | Describe a table’s columns, types, keys and indexes where available. | Read only |
sql_query | Run one validated MySQL-compatible read statement in a read-only transaction, then roll it back. Function allowlists, database permissions and output limits apply. | Read only |
sql_execute | Run one supported data or schema change with Approval by default. Database permissions and the environment policy apply; schema changes can commit implicitly. | Approval |
You can change each tool’s mode on the endpoint. Every call your AI makes appears in Activity.