Northdata MCP

Name: Northdata MCP
Author: p-meier

by p-meierversion 0.1.1i★ –iRuns on your computer

Registry nameio.github.p-meier/northdata-mcp

Install

Overview

Description from the maker (original English)

NorthData API for German company, owner, and financial data — with a built-in credit guard.

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: Accounting, finance & tax
You need to fill in: NORTHDATA_API_KEY

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: NORTHDATA_API_KEY, NORTHDATA_APPROVAL_THRESHOLD, NORTHDATA_ABSOLUTE_MAX, NORTHDATA_CREDIT_LOG

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

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": {
    "northdata": {
      "command": "uvx",
      "args": [
        "northdata-mcp"
      ],
      "env": {
        "NORTHDATA_API_KEY": "your-value",
        "NORTHDATA_APPROVAL_THRESHOLD": "your-value",
        "NORTHDATA_ABSOLUTE_MAX": "your-value",
        "NORTHDATA_CREDIT_LOG": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add northdata --env NORTHDATA_API_KEY=your-value --env NORTHDATA_APPROVAL_THRESHOLD=your-value --env NORTHDATA_ABSOLUTE_MAX=your-value --env NORTHDATA_CREDIT_LOG=your-value -- uvx northdata-mcp

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

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

{
  "mcpServers": {
    "northdata": {
      "command": "uvx",
      "args": [
        "northdata-mcp"
      ],
      "env": {
        "NORTHDATA_API_KEY": "your-value",
        "NORTHDATA_APPROVAL_THRESHOLD": "your-value",
        "NORTHDATA_ABSOLUTE_MAX": "your-value",
        "NORTHDATA_CREDIT_LOG": "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.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "northdata": {
      "type": "stdio",
      "command": "uvx",
      "args": [
        "northdata-mcp"
      ],
      "env": {
        "NORTHDATA_API_KEY": "your-value",
        "NORTHDATA_APPROVAL_THRESHOLD": "your-value",
        "NORTHDATA_ABSOLUTE_MAX": "your-value",
        "NORTHDATA_CREDIT_LOG": "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

NORTHDATA_API_KEY secret required env
Your NorthData API key. Obtain one at https://www.northdata.com
NORTHDATA_APPROVAL_THRESHOLD env
Power-search 'limit' above this requires approve_high_cost=true. Default: 25.
NORTHDATA_ABSOLUTE_MAX env
Hard ceiling for power-search 'limit'. Default: 100. Flag-immune.
NORTHDATA_CREDIT_LOG env
Path to the local credit log file. Default: ~/.northdata/credits.jsonl

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 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account p-meier, 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 Accounting, finance & taxi

More stars than 0% of the other 1729 servers in this category
Published to the registry more recently than 6% of the other 1729 servers in this category
Basic checks equal to or better than 100% of the other 1729 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 Northdata 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?

You need to fill in: NORTHDATA_API_KEY

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 (0.1.1) reached the registry 7 months 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: Finance Toolkit, SolidInvoice, Korea Tax Calculator

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

Finance Toolkit

by JerBouma

500+ transparent financial methods calculated from raw statements, not third-party endpoints.

Computer or cloud★ 5,496MITUpdated today

Install

SolidInvoice

by SolidInvoice

Create and send invoices and quotes, manage clients, and track payments in SolidInvoice.

Runs in the cloud★ 981MITUpdated 8 days ago

Install

Korea Tax Calculator

by UpstageAI

Korean tax calculation and tax-audit judgment MCP: 96 tools with statutory citations.

Runs on your computer★ 97MITUpdated yesterday

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.

NorthData MCP Server

Connect the NorthData company-data API to Claude Desktop, Claude Code, Cursor, and other AI assistants.

The Model Context Protocol (MCP) standardizes how Large Language Models (LLMs) talk to external services like NorthData. This server exposes NorthData's suggest, search, company, person, publications, reference, and billing endpoints as MCP tools, with a built-in credit guard that prevents accidental high-cost calls. See the full list of tools.

Built on [FastMCP v3](https://gofastmcp.com). Uses stdio transport — the MCP client launches northdata-mcp as a subprocess.

Setup

1. Read the security notes

Before running the server, skim the security considerations. NorthData costs real money per returned company, and MCP lets LLMs spend those credits autonomously. The credit guard mitigates this, but defence in depth matters.

2. Install the server

pipx install northdata-mcp

This pulls in the sibling northdata-cli package automatically and exposes the northdata-mcp console script globally.

Alternative via uv:

uvx northdata-mcp --help

3. Get a NorthData API key

Obtain a key at https://www.northdata.com. You'll put it into the MCP client config in the next step.

Optional credit-guard overrides (set as env vars in the MCP client config):

Env var	Default	Purpose
`NORTHDATA_APPROVAL_THRESHOLD`	`25`	`search` `limit` above this requires `approve_high_cost=true`
`NORTHDATA_ABSOLUTE_MAX`	`100`	Hard cap on `search` `limit`, flag-immune
`NORTHDATA_CREDIT_LOG`	`~/.northdata/credits.jsonl`	Local credit log path

4. Configure your MCP client

Claude Desktop

Add to ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) — adjust the path on Windows / Linux:

"mcpServers": { "northdata": { "command": "northdata-mcp", "env": { "NORTHDATA_API_KEY": "XXXX-XXXX" } } } }

Restart Claude Desktop. The NorthData tools will appear in the tool picker.

Claude Code

claude mcp add northdata --env NORTHDATA_API_KEY=XXXX-XXXX -- northdata-mcp

Cursor

Add to ~/.cursor/mcp.json:

"mcpServers": { "northdata": { "command": "northdata-mcp", "env": { "NORTHDATA_API_KEY": "XXXX-XXXX" } } } }

Any MCP client (generic)

Run northdata-mcp as a subprocess and speak MCP over stdio. The environment must contain NORTHDATA_API_KEY.

Tools

_Note: this server is pre-1.0, expect minor breaking changes between versions._

Every tool is a thin wrapper around the equivalent northdata-cli command. Tools are tagged free (no credits spent) or billed (consumes NorthData credits). MCP annotations (readOnlyHint, openWorldHint) are set on every tool so well-behaved clients can surface them in the UI.

Free tools

No NorthData credits are consumed by these tools.

`suggest` — Autocomplete company or person names. Cheap first step before spending a credit on company or person.
`billing` — Current remote credit usage for the billing period (numberOfRequests, periodStart, periodEnd).
`reference_overview` — API reference data: standards, countries, legal forms, events.
`reference_segment_codes` — Complete segment-code list for a given standard (default NACE2025).
`local_credit_log` — Credit log maintained locally by this server: total, per-month, per-entry breakdown.

Billed tools

Every one of these spends NorthData credits. NorthData charges per returned company, not per request. The credit guard enforces a two-tier ceiling on search (see Credit guard). All billed tools accept dry_run=true to build and return the URL without spending credits.

`search` — Power search. Cost: up to limit credits. Filters: segment_codes, segment_standard, legal_forms, address, max_distance_km, countries, status, revenue_min/max, earnings_min/max, limit, pos, approve_high_cost.
`company` — Full company profile (1 credit). Identify by register (e.g. HRB 123456/Muenchen) or by name + optional city. Toggles: owners, financials, representatives, extras, sheets, events.
`person` — Person lookup (1 credit). Returns birth date and known roles. Takes first_name, last_name, optional city.
`publications` — Publications lookup (1 credit). Useful for shareholder lists via source="Hrb".

Credit guard

NorthData bills per returned company. A single search call with limit=100 costs up to 100 credits. This server enforces two tiers:

Tier	Default	Override
Approval threshold — `limit` above this requires `approve_high_cost=true`	`25`	`NORTHDATA_APPROVAL_THRESHOLD`
Absolute maximum — hard cap, ignores `approve_high_cost`	`100`	`NORTHDATA_ABSOLUTE_MAX` (set explicitly by a human, never by an LLM)

Every billed tool call is appended to the local credit log (JSON-lines). The local_credit_log tool surfaces it. The log is informational; billing remains the source of truth.

Use dry_run=true on any billed tool to inspect the request URL before spending anything.

Security considerations

Connecting a credit-consuming data source to an LLM carries real costs and real risks. A malicious or malformed prompt can cause an agent to burn credits, leak structured company data into an untrusted chat, or combine NorthData data with other tools in unintended ways.

Recommendations

Keep the credit guard strict. The defaults (approval 25, absolute max 100) exist to prevent a runaway agent from draining your credits in a single call. Only raise them deliberately.
Prefer free tools during exploration. suggest, reference_*, and billing are free. LLMs should call these before moving to company / person / publications.
Use `dry_run=true` when experimenting with new search parameters or register identifiers.
Review tool calls before approval. Most MCP clients (Claude Desktop, Cursor) ask you to approve each tool call. Leave that setting on.
Limit scope per session. Launch the server with a trial API key, not your main production key, when giving it to an agent for open-ended work.
Prompt injection. NorthData responses contain user-generated text (company descriptions, publications) that an adversary could stuff with instructions. Treat tool output as untrusted data, not as trusted instructions to the LLM.

Development

cd northdata-mcp

python -m venv .venv && source .venv/bin/activate pip install -e "../northdata-cli" # local editable CLI pip install -e ".[dev]" pytest

Tests use FastMCP's in-memory transport — no subprocess, no network. The underlying NorthDataClient is injected via a mock factory backed by httpx.MockTransport.

Resources

Model Context Protocol: https://modelcontextprotocol.io
FastMCP v3 docs: https://gofastmcp.com
NorthData API: https://github.com/northdata/api
Sibling package: northdata-cli — same tools, plain command-line

License

MIT. See LICENSE.

Northdata MCP

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 Accounting, finance & taxi

Common questions

Alternatives

Finance Toolkit

SolidInvoice

Korea Tax Calculator

README from the maker

NorthData MCP Server

Setup

1. Read the security notes

2. Install the server

3. Get a NorthData API key

4. Configure your MCP client

Claude Desktop

Claude Code

Cursor

Any MCP client (generic)

Tools

Free tools

Billed tools

Credit guard

Security considerations

Recommendations

Development

Resources

License