Polish Open Data (unofficial)

io.github.JacekSmi/PolishOpenData

4/4 checks passed
Runs locally
1 secret
★ 0 GitHub stars
Updated 2026-10-23
Health score 43

About Polish Open Data (unofficial)

Polish Open Data (unofficial) is an MCP server published by the GitHub account JacekSmi. Polish registers: KRS, VAT, bank checks, parcels, geocoding, property prices (RCN), optional REGON.

It runs on your own machine: your AI client starts it from the NuGet package PolishOpenData.Mcp at version 1.6.0.

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

Version 1.6.0 was published on 23 October 2026, and the source code is public, so you can read it before installing.

Written from the registry entry. 7 automated checks on registry metadata: 4 pass, 0 warn, 0 fail, 3 info. How we check.

What it asks for

Variable	Required	Secret	Description
`POLISHOPENDATA_OFFLINE_DIR`	No	No	Folder for the prepared VAT whitelist flat-file indexes used by check_vat_bank_account_offline (a local disk, not a network share). Default: PolishOpenData/BialaListaOffline under the user's local application data folder.
`POLISHOPENDATA_REGON_KEY`	No	Yes	Optional. Your own free GUS BIR key (regon_bir@stat.gov.pl); enables the lookup_regon tool. Stays on your machine.

Checks

Check	Result	Detail
Source repository linked	Pass	https://github.com/JacekSmi/PolishOpenData
Version pinned	Pass	Every package has an explicit version
Secrets requested	Info	Asks for 1 secret: POLISHOPENDATA_REGON_KEY
Known package registry	Pass	All packages come from npm, PyPI, OCI, NuGet or MCPB
Namespace ownership	Info	Name verified via GitHub account JacekSmi
Registry text aimed at the AI	Pass	Description and settings contain no hidden characters or instructions to the AI
Code red flags	Info	nuget packages are not read yet

Popularity & health: 43 / 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.

Popularity0 / 40

0 GitHub stars, no download count, no Hacker News posts found. Best two of the three, each on a log scale.

Activity15 / 25

Last push 2026-10-23, last release 2026-10-23, 0 commits in 90 days.

Issue health8 / 15

1 closed of 1 issues, too few to judge. No data, so half marks.

Our checks20 / 20

0 warnings, each costing a fifth.

0 forks, 7 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.JacekSmi/PolishOpenData`
Publisher	GitHub account JacekSmi
How the name is verified	Name verified via GitHub account JacekSmi. 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	nuget `PolishOpenData.Mcp` 1.6.0 (stdio)
Version	1.6.0
Published	2026-10-23
Last updated	2026-10-23
Source repository	https://github.com/JacekSmi/PolishOpenData
Website	https://github.com/JacekSmi/PolishOpenData
Category	Finance & payments (assigned by keyword rule, not by hand)