codeDB Lens

Name: codeDB Lens
Author: codedb-io

by codedb-ioversion 0.9.1i★ –iRuns on your computer

Registry nameio.github.codedb-io/codedb-lens

Install

Overview

Description from the maker (original English)

Read-only health checks and data questions for SQL Server and PostgreSQL, with your saved profiles.

PopNx MCP’s three pillars

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

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

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
You need to fill in: CODEDB_LENS_PASSWORD

Install

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

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
You fill in yourself: CODEDB_LENS_PASSWORD

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

DockerDocker installed

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

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": {
    "codedb-lens": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "CODEDB_LENS_PASSWORD",
        "ghcr.io/codedb-io/codedb-lens:0.9.1",
        "mcp",
        "--engine",
        "your-value",
        "--server",
        "your-value"
      ],
      "env": {
        "CODEDB_LENS_PASSWORD": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add codedb-lens --env CODEDB_LENS_PASSWORD=your-value -- docker run -i --rm -e CODEDB_LENS_PASSWORD ghcr.io/codedb-io/codedb-lens:0.9.1 mcp --engine your-value --server your-value

Fill in the empty values before running it.

This one needs values on its command line, so copy the settings and fill them in.

Or copy the settings yourself

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

{
  "mcpServers": {
    "codedb-lens": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "CODEDB_LENS_PASSWORD",
        "ghcr.io/codedb-io/codedb-lens:0.9.1",
        "mcp",
        "--engine",
        "your-value",
        "--server",
        "your-value"
      ],
      "env": {
        "CODEDB_LENS_PASSWORD": "your-value"
      }
    }
  }
}

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 needs values on its command line, so copy the settings and fill them in.

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "codedb-lens": {
      "type": "stdio",
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "CODEDB_LENS_PASSWORD",
        "ghcr.io/codedb-io/codedb-lens:0.9.1",
        "mcp",
        "--engine",
        "your-value",
        "--server",
        "your-value"
      ],
      "env": {
        "CODEDB_LENS_PASSWORD": "your-value"
      }
    }
  }
}

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.

Values you fill in

CODEDB_LENS_PASSWORD secret env
password of the login

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

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account codedb-io, which owns the repo
… 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 84% of the other 953 servers in this category
Basic checks equal to or better than 100% 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 codeDB Lens safe?

It passed 1 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?

You need to fill in: CODEDB_LENS_PASSWORD

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 (0.9.1) reached the registry 8 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Docker 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

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

Install

Elasticsearch MCP Server

by cr7258

MCP server for interacting with Elasticsearch

Runs on your computer★ 315Apache-2.0Updated 14 months 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.

See what your database isn't showing you.

Free, read-only health check for SQL Server and PostgreSQL .

Website · English · Português (Brasil)

Real run against a test SQL Server (host renamed). Open a demo report .

v0.8: check (with an executive summary and --redact for sharing), compare, and record + report to watch an instance for up to 24 hours (how). 26 rules plus 8 for recordings. FAQ and more on the website.

codeDB Lens connects to your instance with a read-only login, runs a catalog of evidence-based rules and writes a self-contained HTML + JSON report with an A–F grade and a coverage seal (the share of rules that could actually run). Nothing about your database leaves your machine.

Install

Where	How
Windows	Installer (per user, no admin) or portable .zip
Windows (Scoop)	`scoop bucket add codedb https://github.com/codedb-io/codedb-lens` then `scoop install codedb/codedb-lens`
Linux	`.deb` / `.rpm` from the latest release, or the tarball for x64 / arm64
Docker	`docker run --rm -e PG_DSN -v "$PWD:/out" ghcr.io/codedb-io/codedb-lens check --engine pg --dsn-env PG_DSN --out /out`

The Windows binaries are open source but not code-signed yet, so SmartScreen may show a warning. Why, and how to verify the download.

Why another tool?

Evidence, not opinions. Every finding shows the collected values, the query that produced them and when.
Honest confidence. Each finding is *Confirmed*, *Hint* or *No data*. A rule that lacks permission never shows up as a false "OK"; it lowers the coverage instead.
Read-only, always. No DDL, no DML, no agent, no installation on the server.
Rules are data. Each rule is a YAML file plus a SQL query. Contributions don't touch the engine.
English and Portuguese (Brazil), in the app, the CLI and the report.

What it checks

SQL Server	PostgreSQL
Missing or old backups	Version out of support
No recent clean DBCC CHECKDB	pg_stat_statements not available
Failing SQL Agent jobs	A single query dominating execution time
Disk or transaction log running out of space	Long and idle-in-transaction sessions
Dominant waits, translated	Sessions blocked by locks
Sessions blocked right now	Transaction ID wraparound risk
A single query dominating CPU	Dead rows and autovacuum falling behind
Instance settings left at defaults	Replication slots retaining WAL, replica lag
TempDB file layout	Connections near the limit, no pooler
Version out of support	Unused, duplicate and invalid indexes
High-impact missing indexes	Estimated table bloat
Unused and duplicate indexes	Largest tables

Each rule has a documentation page with what it checks, why it matters, what to do and its limits.

Quick start

On Windows, open codeDB Lens from the Start menu. Pick the engine, enter the server and run the diagnosis. Connection profiles are saved; passwords go to the Windows Credential Manager.

Command line (Windows and Linux):

codedb-lens check --engine mssql --server prod01 --auth windows

codedb-lens check --engine pg --dsn-env PG_DSN

Passwords are never accepted as command-line arguments. Use integrated auth, an environment variable or a saved profile.

Use with AI (MCP)

Real Claude Code sessions against test databases; answers shortened.

Ask Claude, GitHub Copilot or Cursor about your database. codedb-lens mcp is a read-only MCP server that your AI client starts on your computer, with your saved profiles:

Diagnosis: with the Lens's minimal login, the AI runs the health check, reads recordings and explains what to fix, without reading business data.
Data: with a login that reads the tables you choose, the AI lists and describes them and answers questions with one SELECT at a time, within row and time limits.

codedb-lens mcp install --client claude-desktop --profile prod   # or vscode, cursor, claude-code

The app's AI (MCP) screen has the commands ready to copy. Guide: lens.codedb.com.br/mcp.

Minimum permissions

-- SQL Server

CREATE LOGIN codedb_lens WITH PASSWORD = ' '; GRANT VIEW SERVER STATE TO codedb_lens; GRANT VIEW ANY DEFINITION TO codedb_lens; GRANT CONNECT ANY DATABASE TO codedb_lens; -- per-database rules (indexes); no data access USE msdb; CREATE USER codedb_lens FOR LOGIN codedb_lens; ALTER ROLE db_datareader ADD MEMBER codedb_lens; ALTER ROLE SQLAgentReaderRole ADD MEMBER codedb_lens;

-- PostgreSQL (repeat GRANT CONNECT for each database)

CREATE ROLE codedb_lens LOGIN PASSWORD ' '; GRANT pg_monitor TO codedb_lens; GRANT CONNECT ON DATABASE app TO codedb_lens;

Supported versions

Engine	Supported	Best-effort
SQL Server	2017, 2019, 2022, 2025 (Windows and Linux), Azure SQL Managed Instance, Amazon RDS	2016 and older; Azure SQL Database (6 of 13 rules apply, see permissions)
PostgreSQL	15, 16, 17, 18, Amazon RDS, Aurora, Azure Flexible Server	14

Privacy

No telemetry. Lens makes two kinds of network calls: an optional, once-a-day version check against GitHub Releases that sends no data (--no-update-check or CODEDB_LENS_NO_UPDATE=1 turns it off), and, only when you ask for the free key, one registration request with the name and e-mail you type (or, when renewing, only the current key). See SECURITY.md.

Need continuous monitoring?

Lens shows a snapshot. codeDB watches your SQL Server and PostgreSQL instances around the clock, with history, baselines and alerts on Teams, Slack and e-mail.

Windows code signing

Windows binaries are built by GitHub Actions from this repository and are not code-signed yet (certificates are paid and this is a free project). Details, how to verify a download and warning-free alternatives: Why Windows shows a warning.

Contributing

New rules are especially welcome. A rule is a YAML file plus a SQL query, so you don't need to touch the Go code: see CONTRIBUTING.md, or just open an issue with a rule idea.

License

Apache 2.0. The codeDB SaaS and its API are separate, closed-source products.

codeDB Lens

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Databases & datasetsi

Common questions

Alternatives

Supabase

MongoDB MCP Server

Elasticsearch MCP Server

README from the maker

Install

Why another tool?

What it checks

Quick start

Use with AI (MCP)

Minimum permissions

Supported versions

Privacy

Need continuous monitoring?

Windows code signing

Contributing

License