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KSeF PL

Verified Integration
Author: @cmendezs•Category: ServerApplication
GitHub Repository
JSON-RPC 2.0
Protocol Standard
Sub-second
Execution Latency
Active
Operational Status
Tags:#Claude#Search#Database#API#Python#Git#AI#GitHub#Node.js

Client Configuration

— Connect KSeF PL to Claude Desktop or Cursor in seconds
{
  "mcpServers": {
    "ksef-pl": {
      "command": "npx",
      "args": [
        "-y",
        "@modelcontextprotocol/server-ksef-pl"
      ],
      "env": {}
    }
  }
}
Paste into ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows).
Architecture & Capabilities

System Overview

Facilitates Polish electronic invoicing (KSeF / FA(2)) and Peppol BIS Billing, offering tools for validation, generation, submission, and querying of invoices via an MCP server.

Indexed Date

7/23/2026

License

Open Source

Protocol Layer

stdio / SSE RPC

Frequently Asked Questions

Architecture and operational details for KSeF PL

Absolutely. KSeF PL includes dedicated tools to validate Polish NIP (Tax Identification Number) and REGON (National Official Business Register Number) using their respective checksum algorithms.

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