POP Cloud API — Overview

POP Cloud API generates fiscal documents (SdI, PEPPOL, KSeF, PDF, ZUGFeRD) from a single shared payload and, when needed, delivers them through active integrations (webhook, SdI, PEPPOL, KSeF, Fatture in Cloud).

Base URL

• Production: https://popapi.io/wp-json/api/v2/
• Sandbox (for testing, no credit consumed): https://sandbox.popapi.io/wp-json/api/v2/

Authentication

Header X-API-Key: <license_key> (preferred). Get your license_key from Account > API after activation. license_key in the body/query is also accepted, but deprecated.

First steps

1. Get your license_key.
2. Verify it with GET /account-profile.
3. Send one document-generation request with a real data payload.
4. Add optional delivery integrations only after local generation works.

Main endpoints

Full reference

Full reference: Postman collection.