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Quorum

by piyush-tkdversion 4.0.0i★ –iRuns on your computer
Registry nameai.quorumdb/quorum

Install

Overview

Description from the maker (original English)

Database tools for AI clients through the Quorum app: reads, masking, approved writes.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

  • Connection: Runs on your computer
  • Transport: stdio
  • Category: Databases & datasets

Install

Pick the AI app you use, then copy the settings.

Before you install

  • Basic checks: 0 of 1 passed
  • Runs on your computer with your user’s permissions (files, network, apps).
  • The registry lists no key to fill in.

You need

  • npmNode.js installed (for the npx command)

Which app do you use?

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "quorum": {
      "command": "npx",
      "args": [
        "-y",
        "quorum-mcp-server"
      ]
    }
  }
}

Run this in your terminal

claude mcp add quorum -- npx -y quorum-mcp-server

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "quorum": {
      "command": "npx",
      "args": [
        "-y",
        "quorum-mcp-server"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "quorum": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "quorum-mcp-server"
      ]
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026

  • ! Caution

    Maker matches the repo

    The publisher (quorumdb.ai) is not the repo owner (piyush-tkd); someone else may have listed it

  • … Not checked yet

    Still maintained

    We have not read this repo from GitHub yet

  • … Not checked yet

    Has a licence

    We have not read this repo from GitHub yet

  • – Not applicable

    Endpoint responds

    This one runs on your computer; there is no internet endpoint

  • – Not applicable

    Sign-in with OAuth

    Runs on your computer and uses local settings instead

  • … Not checked yet

    No hidden instructions in tool descriptions

    Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Databases & datasetsi

  • More stars than 0% of the other 953 servers in this category
  • Published to the registry more recently than 79% of the other 953 servers in this category
  • Basic checks equal to or better than 40% of the other 953 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Quorum safe?

It passed 0 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (4.0.0) reached the registry 12 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: Supabase, MongoDB MCP Server, Elasticsearch MCP Server

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Supabase

by supabase

Supabase’s official server lets AI create tables, query data and review project settings in your Supabase database.

Computer or cloud★ 2,993Apache-2.0Updated yesterday
Install

MongoDB MCP Server

by mongodb-js

MongoDB Model Context Protocol Server

Runs on your computer★ 1,157Apache-2.0Updated 2 days ago
Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

Quorum MCP server

Give Claude, Cursor, VS Code, Windsurf, Codex or your own agent access to your databases through Quorum, with the same rules as Quorum's editor: read-only sessions, masking, and a person approving every write.

Contents

  • How it works
  • Requirements
  • Set up an AI client
  • Choose the connections AI clients may use
  • Tools
  • How writes are handled
  • Quorum Gate
  • The quorum command
  • About this repository

How it works

MCP (Model Context Protocol) is how AI tools call outside tools. Quorum ships an MCP server that the AI client starts on its side. The server talks to the running Quorum app over a local bridge on your computer.

  • Quorum must be open. The AI client reaches your databases only while Quorum runs.
  • No passwords leave Quorum. The client sends a request; Quorum runs it with its own saved login.
  • Each connection is off for AI clients until you turn it on.
  • Same rules as the editor: read-only sessions for reads, masking, and approval for writes.

Reads run in a read-only session and return up to 10,000 rows. Masked columns come back masked, and a query that names a masked column is refused. On DuckDB and SQLite, AI clients cannot read or write files on your computer.

Requirements

  • The Quorum desktop app, version 4.0.0 or later, on macOS, Windows or Linux. Quorum is a paid product with a free 14-day trial coming soon; request access at https://www.quorumdb.ai/#access to hear first.
  • An MCP client. Quorum sets up Claude Desktop, Claude Code, Cursor, VS Code, Windsurf and Codex for you, and gives you the configuration to copy for any other client.

The server runs on the Node runtime inside Quorum, so nothing else needs installing.

Set up an AI client

  1. In Quorum, open Settings › AI clients.
  2. Under 1. AI clients, find the client. Its status is Set up, Not set up, Not found, or Set up for another copy.
  3. Click Set up. Quorum adds its entry to the client's own configuration file and keeps everything else in it.
  4. Quit the client and open it again.
  5. Under 2. Connections the AI may use, turn on the connections it should reach.

For another client, open Another AI client: copy the config, click Copy and paste it into that client's MCP settings.

ClientConfiguration file Quorum writes (macOS)
Claude Desktop~/Library/Application Support/Claude/claude_desktop_config.json
Claude Code~/.claude.json
Cursor~/.cursor/mcp.json
VS Code~/Library/Application Support/Code/User/mcp.json
Windsurf~/.codeium/windsurf/mcp_config.json
Codex~/.codex/config.toml, or the folder in CODEX_HOME

Linux uses ~/.config and Windows uses %APPDATA% for the Claude Desktop and VS Code rows.

Choose the connections AI clients may use

AI clients see no connection until you share it. In Settings › AI clients, click Choose connections…, search or browse by environment, and turn on Let AI clients use for each one.

  • A shared connection is readable only while Allow AI features on this connection is on.
  • Where AI may see row values is off, results reach the client as a profile of each column, not the values.
  • Imported and shared connections always arrive with AI clients off.

Tools

ToolWhat it does
quorum_list_connectionsLists the shared connections and how their writes are handled.
quorum_get_schemaReads a connection's schema: tables, views, columns, types and keys.
quorum_describe_tableDescribes one table, with the team's descriptions.
quorum_search_schemaFinds tables and columns by name.
quorum_sample_rowsReads up to 100 rows of a table. Masked columns come back masked.
quorum_explain_queryShows the plan of a single read. EXPLAIN only, so nothing runs.
quorum_execute_queryRuns a read in a read-only session, or a write if the write setting allows it.
quorum_list_saved_queriesLists the team's saved queries.
quorum_run_saved_queryRuns a saved query as a read.
quorum_get_query_historyReads query history for shared connections.
quorum_get_audit_logReads the write audit: who, what, risk and rows affected.
quorum_get_data_dictionaryReads the team's descriptions of tables and columns.
quorum_get_service_healthReads service health from Last9 or Datadog, when set up in Quorum.
quorum_propose_writeProposes a write, with a reason, for a person to approve in Quorum.
quorum_get_proposalChecks a proposal's outcome.
quorum_list_proposalsLists recent proposals and their status.

How writes are handled

Settings › AI clients › 3. Writes from AI clients has two choices:

ChoiceWhat happens
Ask me in Quorum (default, recommended)A write waits in Quorum until you approve it. On PROD it also needs PROD typed.
Run allowed writes directlyAllowed data changes run at once on LOCAL, DEV, QA, UAT and STAGE. Writes on PROD are refused.

Even when writes run directly, Quorum still refuses any write on PROD and any critical write; DDL and TRUNCATE on any connection except LOCAL; writes on a connection that is read-only, always reviewed, needs a ticket or has a cool-down; and anything the safety checks block, such as an UPDATE without WHERE. Every write and every refusal is recorded in the write audit, as made by an AI agent.

Quorum Gate

With Ask me in Quorum, the AI client proposes a write with a one-line reason, and Quorum waits for you.

  1. Quorum shows the request: the kind, environment, connection, risk and the client's reason, then the SQL, formatted.
  2. What it will change shows how many rows, the columns it sets and whether any value actually changes, and a few of the matched rows with masked columns masked.
  3. If asked, type the confirmation word (for example PROD) and a ticket.
  4. Click Approve and run once, or type a reason and Reject. The client sees your reason.

An approved write runs exactly as proposed, once, through the same checks as the editor. A request expires after 30 minutes. No response means no write.

In clients that support MCP Apps, such as Claude, Claude Desktop, VS Code, Cursor and Goose, the request also appears as a card in the chat. The card shows the status; approving happens in Quorum.

The quorum command

The same bridge powers a command-line tool that runs queries through the running Quorum app and its rules. Install it from Settings › AI clients › Command-line tool.

quorum connections

quorum query " " [--format table|csv|json] [--limit N] quorum describe [--schema S] quorum saved quorum run-saved " " [--connection C] [--format …] quorum history [--connection C] [--limit N] quorum propose " " --reason " " [--wait SECONDS] quorum request [--wait SECONDS]

Only connections shared with AI clients are reachable. Writes go through propose and wait for approval in Quorum.

About this repository

This repository documents Quorum's MCP server and holds its MCP Registry entry (server.json). The server itself ships with the Quorum app. Questions: https://www.quorumdb.ai/#contact.

Product and company names are trademarks of their respective owners and are used only to describe what Quorum works with.

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