Prawo Pl MCP

Name: Prawo Pl MCP
Author: matematicsolutions

by matematicsolutionsversion 0.2.4i★ –iRuns on your computer

Registry nameio.github.matematicsolutions/prawo-pl-mcp

Install

Overview

Description from the maker (original English)

One MCP server for Polish legal data - courts, legislation, KRS, tax, KIO, UODO via 4 unified tools

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: Law & government data

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).
The registry lists no key to fill in.

You need

PyPIPython’s uv installed (for the uvx command)

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": {
    "prawo-pl": {
      "command": "uvx",
      "args": [
        "prawo-pl-mcp"
      ]
    }
  }
}

Run this in your terminal

claude mcp add prawo-pl -- uvx prawo-pl-mcp

Open in Cursor

Or copy the settings yourself

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

{
  "mcpServers": {
    "prawo-pl": {
      "command": "uvx",
      "args": [
        "prawo-pl-mcp"
      ]
    }
  }
}

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": {
    "prawo-pl": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "prawo-pl-mcp"
      ]
    }
  }
}

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 8, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account matematicsolutions, 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 Law & government datai

More stars than 0% of the other 1731 servers in this category
Published to the registry more recently than 43% of the other 1731 servers in this category
Basic checks equal to or better than 100% of the other 1731 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 Prawo Pl MCP 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?

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 (0.2.4) reached the registry 44 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Python (uv) on your computer.

What can I use instead?

In the same category: SONAR: KYB due diligence, DutyKit, Agent Data Tools: Company, compliance and checks

Alternatives

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

SONAR: KYB due diligence

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DutyKit

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Agent Data Tools: Company, compliance and checks

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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.

prawo-pl-mcp

One MCP server for Polish legal data.

Ten independent connectors - case law, legislation, the company register, tax rulings, public procurement, data-protection decisions, plus EU extras - behind five tools. Each connector stays a separate package with its own repository; this server spawns them on demand and translates between their conventions.

"Prawo" is Polish for "law"; the name follows yargi-mcp's move of naming a country server in its own language.

Why an aggregator

The connectors cover Polish legal data well, but as separate MCP servers, one per database - ten installs and ten config entries before the first question. yargi-mcp showed the fix for Turkish law: 16 institutions, one server. prawo-pl-mcp does the same for Poland:

Five tools instead of 42. pl_list_sources, pl_search, pl_get_document, pl_call and pl_coverage - fewer tool schemas means less context spent before the LLM starts working.
One convention. The connectors grew organically: dateFrom here, date_from there, pages counted from 0 or from 1 depending on the repo. Here page is always 1-based and dates are always date_from/date_to (YYYY-MM-DD); the translation happens inside. One name per concept applies to the aggregator's own tools too: page is the page parameter of both pl_search and pl_get_document (page_number still works as a deprecated alias), and pl_call takes arguments or its alias args.
Native names on the table. Every catalog entry carries native_params - the native parameter name each unified one maps to for that source, so article_number (eu-compliance) is visible without spawning the connector or reading an upstream error. pl_call checks the names it was given against the connector's own schema and says which one it meant.
Nothing preinstalled. Connectors run as subprocesses via npx -y / uvx, downloaded on the first call to a given source and kept alive afterwards. A source that cannot start reports a readable error while the rest keep working.
Paginated documents. Full judgment and act texts are chunked at ~5000 characters per page (yargi-mcp's pattern), so a 200-page ruling does not flood the context window. Sources that paginate server-side (isap) get the page forwarded natively and are reported as pagination: "native" - the aggregator does not re-cut an already-cut page and does not invent a total_pages it cannot know.

Coverage

Source id	What	Institution / database	Connector	Runtime
`saos`	Case law: common courts, Supreme Court, Constitutional Tribunal + citator	SAOS	mcp-saos	npx
`nsa`	Case law: administrative courts (NSA + 16 WSA)	CBOSA	mcp-nsa	npx
`isap`	Legislation: Dziennik Ustaw + Monitor Polski, 96k+ acts	Sejm ELI API	mcp-isap	npx
`krs`	Company register: extracts, history, board composition	KRS API (Ministry of Justice)	mcp-krs	npx
`eureka`	Tax rulings: 550k+ individual interpretations	EUREKA (Ministry of Finance)	mcp-eureka	npx
`kio`	Public procurement: National Appeal Chamber rulings	orzeczenia.uzp.gov.pl	kio-orzeczenia-mcp	uvx
`uodo`	GDPR enforcement: Polish DPA decisions, fines, stats	orzeczenia.uodo.gov.pl	uodo-orzeczenia-mcp	uvx
`eu-sparql`	EU law: EUR-Lex by CELEX, CJEU by ECLI, GDPRhub	Cellar SPARQL	mcp-eu-sparql	npx
`eu-compliance`	14 EU regulations offline (GDPR, AI Act, DORA, NIS2...)	Local SQLite corpus	mcp-eu-compliance	npx
`legalize`	Law-as-git: 32 jurisdictions, versioned by commit	legalize-dev	legalize-mcp	uvx

Polish sources are tagged group: pl, EU extras group: eu - filter with pl_list_sources(group="pl").

Tools

Tool	What it does
`pl_list_sources`	Catalog of sources (no subprocess spawned). With `source_id`: live tool schemas of one connector.
`pl_search`	Search any source with normalized parameters; source-specific filters via `extra`.
`pl_get_document`	Full document by identifier (judgment id, ELI, KRS number, signature...), paginated.
`pl_call`	Any native tool of any connector: citator, DPA statistics, board composition, regulation comparison...
`pl_coverage`	Declare what this connector covers, when each family was captured, and - explicitly - what it does NOT cover. Every gap carries a fallback.

The typical flow an LLM follows (spelled out in the server's instructions): pl_list_sources → pl_search → pl_get_document, with pl_call for the specialized tools each connector brings.

Install

Requires Python ≥ 3.11 plus the runtimes of the sources you use: Node.js ≥ 18 for npx sources, uv for uvx sources. If a runtime is missing, its sources report source_unavailable and the rest work.

Claude Code

claude mcp add pl-legal -- uvx prawo-pl-mcp

Claude Desktop / any MCP client (stdio)

"mcpServers": { "pl-legal": { "command": "uvx", "args": ["prawo-pl-mcp"] } } }

Remote (Streamable HTTP)

uvicorn prawo_pl_mcp.asgi:app --host 0.0.0.0 --port 8000

Open by default (public, read-only data). Set PRAWO_PL_MCP_API_KEY to require X-API-Key: or Authorization: Bearer on every request.

Configuration

Env	Default	Meaning
`PRAWO_PL_MCP_CMD_`	-	Override the spawn command for a source, e.g. `PRAWO_PL_MCP_CMD_SAOS="node C:/dev/mcp-saos/dist/index.js"` for a local checkout. = source id, uppercase, `-` → `_`.
`PRAWO_PL_MCP_INIT_TIMEOUT`	`180`	Seconds allowed for a connector's first start (includes package download).
`PRAWO_PL_MCP_TIMEOUT`	`90`	Seconds per tool call after startup.
`PRAWO_PL_MCP_AUDIT_DIR`	`~/.matematic/audit`	Where the JSONL audit log goes.
`PRAWO_PL_MCP_API_KEY`	-	ASGI mode only: require this API key (dual-channel).

Architecture

The aggregator is a thin proxy (ADR 0001). Connectors are not imported, vendored or forked; the aggregator speaks MCP to them over stdio the same way any client would. The whole layer is a source registry (one dataclass entry per connector), a lazy subprocess pool, a parameter translator and a paginator. Adding a source means adding a registry entry.

LLM client ──MCP──▶ prawo-pl-mcp ──MCP/stdio──▶ npx @matematicsolutions/mcp-saos

│ ──MCP/stdio──▶ uvx kio-orzeczenia-mcp │ ──MCP/stdio──▶ ... (spawned on first use) └─ registry + param mapping + 5000-char pagination

Every call lands in a JSONL audit log (timestamp, tool, source, parameter hash, latency - never document content).

Development

git clone https://github.com/matematicsolutions/prawo-pl-mcp && cd prawo-pl-mcp

uv sync --extra dev uv run pytest # offline tests: registry, dispatch mapping, pagination, drift uv run prawo-pl-mcp # stdio server

License

Apache-2.0. Individual connectors carry their own licenses (MIT or Apache-2.0), their own rate limits and their own terms toward upstream databases - the aggregator adds no caching and no transformation beyond pagination, so each connector's constraints apply unchanged.

Prawo Pl MCP

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

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 Law & government datai

Common questions

Alternatives

SONAR: KYB due diligence

DutyKit

Agent Data Tools: Company, compliance and checks

README from the maker

prawo-pl-mcp

Why an aggregator

Coverage

Tools

Install

Claude Code

Claude Desktop / any MCP client (stdio)

Remote (Streamable HTTP)

Configuration

Architecture

Development

License