InvoiceIn for Windsurf

io.github.peculiar-systems/invoicein

XRechnung, Factur-X, Peppol, FatturaPA, KSeF → EN 16931 JSON + fix hints. Hosted; MIT=examples only

client:Windsurf transport:streamable-http tools:5

Install InvoiceIn in Windsurf

~/.codeium/windsurf/mcp_config.json · windows: %USERPROFILE%\.codeium\windsurf\mcp_config.json

{
  "mcpServers": {
    "invoicein": {
      "serverUrl": "https://invoicein-api.peculiar.systems/mcp"
    }
  }
}

Global only — Windsurf has no per-project MCP config. Refresh Cascade after saving. Windsurf docs