NormAPI

Name: NormAPI
Author: normapi.com

by normapi.comversion 1.4.0i★ –iComputer or cloud

Registry namecom.normapi/mcp

How to install

What it does

Validate, generate and read German e-invoices (XRechnung, ZUGFeRD) against the official KoSIT rules.

Connects Computer or cloud
Account or key Cloud: Works without a key · add Authorization if you have one (often raises limits) · Local: Needs NORMAPI_API_KEY
Category Accounting, finance & tax

Install

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

Passed 2/3 checks · What you ask goes through the maker’s server (normapi.com) · ✓ Commands checked Nov 14, 2026

First: which AI do you use?

ClaudeWeb · app · phoneChatGPTWebClaude CodeTerminalCursorCode editorVS CodeCode editorOtherOther apps

Pick your app and the steps appear below.

Works with Claude · about 2 min

No key, nothing to install · Set it up once on claude.ai or the desktop app, then use it in chat · free accounts can add 1 · on Team/Enterprise an Owner adds it

Open Claude’s Connectors page
CustomizeConnectors
Done
Click “Add” → “Custom” → “Web” and fill in these 2 fields
Copy each value into the field with the same name in Claude, then click Continue
Name · NameNormAPI
Remote MCP server URL · Addresshttps://normapi.com/mcp
Click Continue past the sign-in settings Claude detected · under Authentication choose what the maker says (Sign in now, Sign in when needed or No sign in), then click Add
Done
Turn it on in a chat
+ConnectorsNormAPI
Done
Try it
Use NormAPI and tell me what you can do for me, then show me one thing
✓ If Claude says it is using NormAPI or shows a NormAPI tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with ChatGPT, depending on your plan

Full MCP: ChatGPT Business, Enterprise or Edu on the web · Pro: connects with read/fetch permissions, so tools that change data may not work · Plus: not confirmed in OpenAI’s docs; if you see an add-custom-MCP option on the Plugins page you can try these steps · web only

Open ChatGPT’s add-MCP page on the web
Plugins+Add custom MCP server
Done
Fill in the name and address
Enter a name, paste the address under Connection, tick the risk warning and click Create as a plugin
Name · NameNormAPI
Connection · Addresshttps://normapi.com/mcp
Done
Pick NormAPI in a chat
Start a new chat and pick NormAPI from your plugins before typing
Done
Try it
Use NormAPI and tell me what you can do for me, then show me one thing
✓ If ChatGPT says it is using NormAPI or shows a NormAPI tool in the answer, you are connected

Menu names checked against OpenAI’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Claude Code · about 2 min

No key, nothing to install

Open Terminal
Mac: press Command+Space and type Terminal · Windows: open PowerShell
Done

Paste this command and press Enter

claude mcp add --transport http --scope user normapi https://normapi.com/mcp

Done

Type /mcp in Claude Code
You should see NormAPI listed as connected
Done
Try it
Use NormAPI and tell me what you can do for me, then show me one thing
✓ If Claude Code says it is using NormAPI or shows a NormAPI tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Cursor · about 2 min

No key, nothing to install

Click this button to open Cursor
Open in Cursor
Cursor asks you to confirm; click Install
Done
Open the AI chat in Cursor in Agent mode
Done
Try it
Use NormAPI and tell me what you can do for me, then show me one thing
✓ If Cursor says it is using NormAPI or shows a NormAPI tool in the answer, you are connected

Menu names checked against Cursor’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with VS Code · about 2 min

No key, nothing to install

Click this button to open VS Code
Open in VS Code
VS Code asks you to confirm; click Install
Done
Open the AI chat in VS Code in Agent mode
Done
Try it
Use NormAPI and tell me what you can do for me, then show me one thing
✓ If VS Code says it is using NormAPI or shows a NormAPI tool in the answer, you are connected

Menu names checked against VS Code’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.

See every app that uses MCP →

Address for apps that connect over the web

Addresshttps://normapi.com/mcp

JSON settings are under “For developers” below

Stuck? Ask people who use NormAPI💬 Discussion →

For developers: Terminal commands and JSON settings

Over the web

Claude Code

claude mcp add --transport http --scope user normapi https://normapi.com/mcp

Cursor (~/.cursor/mcp.json)

{
  "mcpServers": {
    "normapi": {
      "url": "https://normapi.com/mcp"
    }
  }
}

VS Code (mcp.json)

{
  "servers": {
    "normapi": {
      "type": "http",
      "url": "https://normapi.com/mcp"
    }
  }
}

Installed on your computer

Claude Code

claude mcp add --scope user normapi --env NORMAPI_API_KEY=your-value -- npx -y @normapi/mcp

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "normapi": {
      "command": "npx",
      "args": [
        "-y",
        "@normapi/mcp"
      ],
      "env": {
        "NORMAPI_API_KEY": "your-value"
      }
    }
  }
}

Cursor (~/.cursor/mcp.json)

{
  "mcpServers": {
    "normapi": {
      "command": "npx",
      "args": [
        "-y",
        "@normapi/mcp"
      ],
      "env": {
        "NORMAPI_API_KEY": "your-value"
      }
    }
  }
}

VS Code (mcp.json)

{
  "servers": {
    "normapi": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@normapi/mcp"
      ],
      "env": {
        "NORMAPI_API_KEY": "your-value"
      }
    }
  }
}

Values you fill in

NORMAPI_API_KEY secret required env
Your NormAPI API key (nk_live_…), needed only to generate invoices. Free at https://normapi.com/en/account/keys.
Authorization secret HTTP header
Optional. Bearer nk_live_… (your NormAPI API key) to generate invoices without OAuth. Validating and reading invoices need nothing.

Descriptions are as written by the maker.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

At a glance

GitHub stars i: –
Downloads per weeki: 138/wk
Verified domain: ✓ normapi.com
Licence i: No licence stated
Connection: Computer or cloud
Transport: stdio, streamable-http
Latest versioni: 1.4.0
Categoryi: Accounting, finance & tax
Published to registryi: Nov 14, 2026
Code last changedi: –
Maker: normapi.com
Packages: npm: @normapi/mcp
Repo: –
Website: normapi.com
Registry status: Active

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Connect over the internet in

Claude ChatGPT Goose LM Studio Msty Studio Cherry Studio Cursor VS Code + GitHub Copilot Visual Studio Windsurf (Devin Desktop)Zed Kiro Cline Continue JetBrains AI Assistant Claude Code Codex CLI Gemini CLI OpenCode nodecode Warp LibreChat Open WebUI Raycast

Run on your computer in

Claude Goose LM Studio Msty Studio Cherry Studio Cursor VS Code + GitHub Copilot Visual Studio Windsurf (Devin Desktop)Zed Kiro Cline Continue JetBrains AI Assistant Claude Code Codex CLI Gemini CLI OpenCode nodecode Warp LibreChat Raycast

All apps, with pros and cons →

What it can do

Tool names and descriptions exactly as the server reported them on Nov 11, 2026. The maker wrote them, not us; we show them as plain text.

validate_invoice
Check an XRechnung (UBL or CII XML) or a ZUGFeRD/Factur-X PDF against the official KoSIT rules. Returns the verdict, the rule set version, and every finding; each business-rule finding comes with a plain-language meaning, cause and fix. Send the XML as text in `xml`, the PDF base
parse_invoice
Read a received e-invoice — XRechnung or any EN 16931 invoice as UBL or CII XML, or a ZUGFeRD/Factur-X PDF — into structured data. `invoice` is in exactly the shape generate_invoice takes (fields the document lacks are left out); `stated` has the totals, the VAT breakdown and eac
generate_invoice
Produce an e-invoice as `ubl` or `cii` XML or a ZUGFeRD hybrid PDF (`zugferd`) from invoice data: an XRechnung for a public-sector buyer (profile `xrechnung`, the default), a plain EN 16931 invoice for a business (profile `en16931`). Totals are computed server-side in decimal ari
explain_rule
Explain one EN 16931 / XRechnung / Peppol business rule by its code (e.g. BR-DE-15, BR-CO-10, PEPPOL-EN16931-R010): what it requires, why invoices typically break it, and how to fix it, with a link to the full page. Case does not matter. Schema findings (cvc-*) have no explanatio

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 14, 2026

! Caution
Maker matches the repo
The registry lists no source repo, so we cannot match the publisher (normapi.com) to the code
… 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
✓ Pass
Endpoint responds
Responded in 243 ms (HTTP 200)
– Not applicable
Sign-in with OAuth
No sign-in needed
✓ Pass
No hidden instructions in tool descriptions
Read 4 tool descriptions and found no hidden instructions to the AI

Discussion

Ask, share a tip or report that it does not work. Sorted by what people marked helpful.

No posts yet. Be the first to ask or share.

Posts here are written by users, not the PopNx team.

User reviews

No reviews yet

Compared with others in Accounting, finance & taxi

More stars than 0% of the other 3212 servers in this category
Published to the registry more recently than 99% of the other 3212 servers in this category
Basic checks equal to or better than 52% of the other 3212 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 NormAPI safe?

It passed 2 of 3 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: NORMAPI_API_KEY

Does it run on my computer or in the cloud?

Either way works: install it on your computer or connect to the cloud version.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.4.0) reached the registry today.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT on the web (full MCP on Business and above; Pro read-only).

What can I use instead?

In the same category: CCXT, Finance Toolkit, AKQuant

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README from the maker

No README found in the repo

NormAPI

What it does

Install

Open Claude’s Connectors page

Click “Add” → “Custom” → “Web” and fill in these 2 fields

Turn it on in a chat

Try it

Open ChatGPT’s add-MCP page on the web

Fill in the name and address

Pick NormAPI in a chat

Try it

Open Terminal

Paste this command and press Enter

Type /mcp in Claude Code

Try it

Click this button to open Cursor

Open the AI chat in Cursor in Agent mode

Try it

Click this button to open VS Code

Open the AI chat in VS Code in Agent mode

Try it

Over the web

Installed on your computer

Values you fill in

At a glance

Which apps can use it

Related guides

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

Discussion

User reviews

Compared with others in Accounting, finance & taxi

Common questions

Others in the same category

CCXT

Finance Toolkit

AKQuant

README from the maker