Ksef Fa3 Invoice Lint MCP Server

by jmshinhwaio.github.jmshinhwa/ksef-fa3-invoice-lintv1.0.2

Finds the lines KSeF will reject in a Polish structured invoice XML, before you send it

1Node.jsstdioofficial registry

context tax

queued

security

queued

cold start

queued

freshness

Active2d ago

Install Ksef Fa3 Invoice Lint MCP server

claude mcp add ksef-fa3-invoice-lint -- npx -y @readystack/ksef-fa3-invoice-lint --mcp

{
  "mcpServers": {
    "ksef-fa3-invoice-lint": {
      "command": "npx",
      "args": [
        "-y",
        "@readystack/ksef-fa3-invoice-lint",
        "--mcp"
      ]
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

{
  "mcpServers": {
    "ksef-fa3-invoice-lint": {
      "command": "npx",
      "args": [
        "-y",
        "@readystack/ksef-fa3-invoice-lint",
        "--mcp"
      ]
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "ksef-fa3-invoice-lint": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@readystack/ksef-fa3-invoice-lint",
        "--mcp"
      ]
    }
  }
}

Add to .vscode/mcp.json in your workspace.

{
  "mcpServers": {
    "ksef-fa3-invoice-lint": {
      "command": "npx",
      "args": [
        "-y",
        "@readystack/ksef-fa3-invoice-lint",
        "--mcp"
      ]
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Freshness

Active — last maintenance signal 2d ago. The newest of the signals below sets the band.

Last commit (default branch)
2026-10-08 · 2d ago · GitHub
Latest release
no data · GitHub
Package published
no data · npm/PyPI
Registry entry updated
2026-09-19 · 21d ago · official registry · v1.0.2

FAQ

›How do I install the Ksef Fa3 Invoice Lint MCP server in Claude Code?

Run: claude mcp add ksef-fa3-invoice-lint -- npx -y @readystack/ksef-fa3-invoice-lint --mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does Ksef Fa3 Invoice Lint require an API key?

No required environment variables are declared in its published metadata.

›Can I use Ksef Fa3 Invoice Lint as a remote (hosted) MCP server?

No hosted endpoint is published; it runs locally over stdio.

›Is Ksef Fa3 Invoice Lint in the official MCP registry?

Yes, as io.github.jmshinhwa/ksef-fa3-invoice-lint.