API reference
Connector (n8n)
Forward a POP payload to an external service through a registered n8n webhook.
KSeF FA(3) XML
Generate, and when needed send, a KSeF (Poland) invoice from the POP API.
Native Zoho Integration
Direct sync channel to Zoho Invoice/Zoho Books, an alternative to the n8n connector.
Onboarding API
Headless login and account setup for MCP, LLM, and external integrations.
PDF Generation
Generate (and optionally email) the PDF of a POP document.
PEPPOL BIS / UBL XML
Generate a PEPPOL UBL invoice from the POP API.
POP Cloud API — Overview
Base URL, authentication, and first steps for using the POP API.
SdI / FatturaPA XML
Generate Italian SdI e-invoice XML from the POP API.
ZUGFeRD / Factur-X
Generate the ZUGFeRD bundle (visual PDF + EN16931 XML + hybrid PDF).