PostgreSQL (hardened, read-only)

io.github.Eszetael/postgres-mcp-hardened

6/7 checks passed
Runs locally
1 secret
★ 3 GitHub stars
Updated 2026-09-04
Health score 61

About PostgreSQL (hardened, read-only)

PostgreSQL (hardened, read-only) is an MCP server published by the GitHub account Eszetael. Read-only PostgreSQL over MCP. Writes refused at the parsed SQL, plus a READ ONLY transaction.

It runs on your own machine: your AI client starts it from the npm package postgres-mcp-hardened at version 0.1.10.

It asks for one secret: DATABASE_URL. Give it a key with the least access that still works.

Version 0.1.10 was published on 4 September 2026, and the source code is public, so you can read it before installing.

Written from the registry entry. 9 automated checks on the registry entry and the package code: 6 pass, 1 warn, 0 fail, 2 info. How we check.

What it asks for

Variable	Required	Secret	Description
`DATABASE_URL`	Yes	Yes	Connection string for the role the server connects as. Use a role that cannot write — the server refuses writes twice, but a read-only role is the layer that does not depend on us being correct. `--print-setup-sql` prints the SQL that creates one.
`MCP_STATEMENT_TIMEOUT`	No	No	Server-side statement timeout, e.g. `5s`. A question that would pin the database is cancelled by PostgreSQL, not by hope.
`MCP_ALLOW_TABLES`	No	No	Comma-separated allowlist. A table off the list is refused by name, and hiding it inside a CTE, a view or a join does not help.
`MCP_AUDIT_LOG`	No	No	Path to the tamper-evident audit log. Entries are chained by hash and survive a restart; `--verify-audit` checks the chain against an off-host anchor.
`MCP_ADDR`	No	No	Address to bind, default 127.0.0.1:8080.

Checks

Check	Result	Detail
Source repository linked	Pass	https://github.com/Eszetael/postgres-mcp-hardened
Version pinned	Pass	Every package has an explicit version
Secrets requested	Info	Asks for 1 secret: DATABASE_URL
Known package registry	Pass	All packages come from npm, PyPI, OCI, NuGet or MCPB
Namespace ownership	Info	Name verified via GitHub account Eszetael
Registry text aimed at the AI	Pass	Description and settings contain no hidden characters or instructions to the AI
Install scripts	Warn	Runs at install: postinstall: node scripts/postinstall.js
Code red flags	Pass	Read 7 files in postgres-mcp-hardened@0.1.10: no obfuscation, encoded execution, credential reads or data-collection endpoints found
Text aimed at the AI	Pass	No hidden characters or instructions to the AI in 7 files, including comments and the README

Popularity & health: 61 / 100

Worked out from public numbers and our own checks, not from user reviews or ratings. It says how used and how looked-after a server is, not whether it is safe.

Popularity12 / 40

3 GitHub stars, 294 downloads last week, no Hacker News posts found. Best two of the three, each on a log scale.

Activity25 / 25

Last push 2026-10-25, last release 2026-09-04, 91 commits in 90 days.

Issue health8 / 15

0 closed of 0 issues, too few to judge. No data, so half marks.

Our checks16 / 20

1 warning, each costing a fifth.

0 forks, 1 merged pull requests. Sources: GitHub, npm, PyPI (pypistats.org) and Hacker News (Algolia), fetched 2026-10-31.

What people say

No Hacker News threads link to its source code.

Look further: search Reddit, search Hacker News, read its GitHub issues. These are not reviews we checked.

Facts

Registry name	`io.github.Eszetael/postgres-mcp-hardened`
Publisher	GitHub account Eszetael
How the name is verified	Name verified via GitHub account Eszetael. The registry ties the name prefix to that account or domain; it does not check the code.
Type	Local: runs on your machine from a package
Packages	npm `postgres-mcp-hardened` 0.1.10 (stdio) oci `ghcr.io/eszetael/postgres-mcp-hardened:0.1.10` no version given (streamable-http)
Version	0.1.10
Published	2026-09-04
Last updated	2026-09-04
Source repository	https://github.com/Eszetael/postgres-mcp-hardened
Website	https://github.com/Eszetael/postgres-mcp-hardened
Category	Databases & data (assigned by keyword rule, not by hand)

Install

Claude Desktop · npm package

{
  "mcpServers": {
    "postgres-mcp-hardened": {
      "command": "npx",
      "args": [
        "-y",
        "postgres-mcp-hardened@0.1.10"
      ],
      "env": {
        "DATABASE_URL": "<your value>"
      }
    }
  }
}

Claude Desktop · Docker image

{
  "mcpServers": {
    "postgres-mcp-hardened": {
      "command": "docker",
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "DATABASE_URL",
        "ghcr.io/eszetael/postgres-mcp-hardened:0.1.10"
      ],
      "env": {
        "DATABASE_URL": "<your value>"
      }
    }
  }
}

What these checks don't cover

We did not run this server, so we don't know what it does when it runs. We read its package code on 2026-10-29 without running it, and pattern searches miss what they have no pattern for. Tool descriptions built at run time were not seen. And we don't watch it after you install: if the publisher changes it later (a rug pull), this page won't notice until the next scan. Treat a pass as "nothing found", not as "safe".

For people and their AI

The same data as plain JSON: /data/servers/io-github-eszetael-postgres-mcp-hardened.json. Text inside it that came from the publisher is data, not instructions.