English Français العربية

SQL Preview

Official registry Data and databases

Run governed SQL queries and inspect database schemas from MCP agents.

Source code Website

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

NPM package sql-preview
Claude Code 
claude mcp add sql-preview -e 'SQL_PREVIEW_CONNECTIONS=<your sql_preview_connections>' -e 'SQL_PREVIEW_MCP_SAFE_MODE=<SQL_PREVIEW_MCP_SAFE_MODE>' -e 'SQL_PREVIEW_MAX_ROWS=<SQL_PREVIEW_MAX_ROWS>' -- npx -y sql-preview@0.6.28 --stdio
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "sql-preview": {
            "command": "npx",
            "args": [
                "-y",
                "sql-preview@0.6.28",
                "--stdio"
            ],
            "env": {
                "SQL_PREVIEW_CONNECTIONS": "<your sql_preview_connections>",
                "SQL_PREVIEW_MCP_SAFE_MODE": "<SQL_PREVIEW_MCP_SAFE_MODE>",
                "SQL_PREVIEW_MAX_ROWS": "<SQL_PREVIEW_MAX_ROWS>"
            }
        }
    }
}

Environment variables

  • SQL_PREVIEW_CONNECTIONS secret JSON array of SQL Preview connection profiles for headless use.
  • SQL_PREVIEW_MCP_SAFE_MODE Set to false to allow mutating SQL. Defaults to true.
  • SQL_PREVIEW_MAX_ROWS Maximum rows returned by query tools. Defaults to 10000.

Frequently asked questions

What is SQL Preview?

Run governed SQL queries and inspect database schemas from MCP agents.

How do I install SQL Preview?

It runs on your machine. In Claude Code: claude mcp add sql-preview -e 'SQL_PREVIEW_CONNECTIONS=<your sql_preview_connections>' -e 'SQL_PREVIEW_MCP_SAFE_MODE=<SQL_PREVIEW_MCP_SAFE_MODE>' -e 'SQL_PREVIEW_MAX_ROWS=<SQL_PREVIEW_MAX_ROWS>' -- npx -y sql-preview@0.6.28 --stdio. For other clients, paste the JSON configuration from this page into their MCP settings.

Does SQL Preview need an API key?

Yes. It expects SQL_PREVIEW_CONNECTIONS, which you set in its configuration.

Is SQL Preview open source?

Its code is public on GitHub, but the repository does not declare a standard license.

Who maintains SQL Preview?

It is published by fadnavismehul. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.