SQL Explorer

MCP server

example-org/sql-explorer

Read-only access to PostgreSQL and MySQL: list schemas, describe tables and run safe queries.

ListedUnreviewed

Sample entries — placeholder data, not real projects

Use tool

Set up

Runs on your computer. Pick your agent and operating system.

Before you start

Node.js 20 or newer

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "sql-explorer": {
      "command": "npx",
      "args": [
        "-y",
        "@example-org/sql-explorer"
      ],
      "env": {
        "DATABASE_URL": "<your DATABASE_URL>"
      }
    }
  }
}

Values in angle brackets are placeholders — replace them on your machine. Restart Claude Desktop after editing its config.

Tools provided

As listed by the project. Your agent asks before calling them, depending on its settings.

list_schemasList schemas visible to the connection.
describe_tableColumns, types and indexes for one table.
queryRun a read-only SELECT with a row limit.

README

Synced Oct 9, 2026

SQL Explorer

Sample entry. This README is placeholder text used to design the catalog. It does not describe a real project.

Read-only access to PostgreSQL and MySQL: list schemas, describe tables and run safe queries.

Features

list_schemas — List schemas visible to the connection.
describe_table — Columns, types and indexes for one table.
query — Run a read-only SELECT with a row limit.

Installation

npx -y @example-org/sql-explorer

Configuration

Variable	Required	Description
`DATABASE_URL`	Yes	Connection string. Use a read-only database user.

Security

Only grant the permissions this server needs. Review the source before running it on a machine with sensitive data.

License

Released under the MIT license.