SQL Preview

io.github.fadnavismehulPublished by GitHub account fadnavismehulv0.6.28Updated Oct 30, 2026

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

VerifiedSTDIODesktop onlyDatabases

Server details

Identifier: io.github.fadnavismehul/sql-preview
Transport: STDIO
Runtime: Desktop only
Trust: Verified
Published: Sep 16, 2026

Security note

MCP servers receive tool arguments from a conversation and may perform external actions. Review what a server can do before you enable it, and give it only the access it needs.

The registry verified the GitHub account fadnavismehul for this listing. That does not show the account is the product's maker.

SourceWeft's checks cover whether the listing is complete and the endpoint answered; they do not review the server's code or what its tools do.

Add a badge to your README

Show readers this MCP server is listed on SourceWeft. The badge links to this page.

[![Listed on SourceWeft](https://sourceweft.com/badge/mcp/io.github.fadnavismehul%2Fsql-preview.svg)](https://sourceweft.com/mcp/io.github.fadnavismehul%2Fsql-preview?utm_source=readme&utm_medium=badge)

Overview

AI-generated overview

Local MCP server that lets an assistant run governed SQL queries and inspect database schemas, with row limits and a safe mode on by default.

What you can do: Run SQL queries against configured database connections, with results capped by a maximum row count.
Inspect database schemas so the assistant can see available tables and structure before querying.
Apply a safe mode that blocks mutating SQL unless it is explicitly turned off.
Load connection profiles from a JSON environment variable for headless use.
When to use it: Useful when you want an assistant to explore and query your databases from a local MCP client, with read-only behavior and bounded result sizes by default. Suited to schema inspection and ad-hoc analysis rather than unattended write access.
Requirements: Runs locally over stdio, started with npx from the npm package sql-preview, so Node.js is needed. Connection profiles are supplied through the SQL_PREVIEW_CONNECTIONS environment variable as a JSON array. Optional settings: SQL_PREVIEW_MAX_ROWS (default 10000) and SQL_PREVIEW_MCP_SAFE_MODE (default true). Desktop client only.

Before you install

SQL_PREVIEW_CONNECTIONS holds database connection profiles, likely including credentials, so treat it as a secret. Setting SQL_PREVIEW_MCP_SAFE_MODE to false allows mutating SQL that can change or delete data. Large SQL_PREVIEW_MAX_ROWS values can return very large result sets.

Installation

In SourceWeft

Open SQL Preview in the dashboard and add it to a workspace.
Enable the server for the chats that should use its tools.

Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.

Other MCP clients

Follow the launch instructions in the repository.

README

This repository has no README.

Tools

SourceWeft has not started this package in its sandbox yet, so its tools are not known.

Version history

v0.6.28LatestSep 16, 2026

Score

25% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

Reached in the last 30 days25 pts
Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.
Auth declared10 pts
Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.
Tools listed15 pts
Answer tools/list without a credential, or ship a package that starts in a sandbox without one.
DescriptionRequired15 pts
Logo10 pts
Documentation15 pts
Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.
License10 pts
Declare a license in the repository or the registry entry.