# nip-checker-mcp

> Use this tool when you need to verify Polish Tax Identification Numbers (NIP) or check if a bank account belongs to a specific NIP in real-time. It solves problems related to tax number validation and bank account verification, providing a secure and reliable way to authenticate business partners or clients. The tool takes NIP and bank account numbers as input and returns verification results through the official Ministry of Finance API.

Canonical page: https://skillsregistry.net/skills/solverio-pl-nip-checker-mcp  
JSON: https://api.skillsregistry.net/v1/skills/solverio-pl-nip-checker-mcp

## Description

Enables real-time verification of Polish NIP (Tax Identification Numbers) using the official Ministry of Finance API. Also supports checking if a bank account belongs to a specific NIP.

## Trust

- **Trust score (0–1):** 0.69
- **Verification tier:** scanned
- **Last scanned:** 2026-08-31

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** finance
- **Updated:** 2026-08-31

## Source

- **Source listing:** [Glama](https://glama.ai/mcp/servers/ftpbpcmrci)
- **Repository:** <https://github.com/solverio-pl/nip-checker-mcp>

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "solverio-pl-nip-checker-mcp"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/solverio-pl-nip-checker-mcp` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/solverio-pl-nip-checker-mcp/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt