Proben
Rehearse every network. Before you go live.
Proben is a universal sandbox that reproduces the world's e-invoicing / CTC networks — clearance, real-time reporting, Peppol four- and five-corner, and post-audit — under one roof. Build and test your integration against every model in one place, instead of chasing each government's separate sandbox.
Every network, one roof
Clearance, real-time reporting, four-corner Peppol, five-corner CTC and post-audit — reproduced faithfully, so you test against all of them without a single government sandbox account.
Rehearse before go-live
Run named scenarios — a rejection, a portal outage, a malformed clearance response — against a network before it's live. The surprises happen here, not in production.
Add a country with data, not code
Five stable engines, one per model, plus config-as-data packs per country and mandate version. A new mandate is a pack and a review — not a rebuild.
Point your integration at Proben. Rehearse.
Pick a network and a scenario; Proben plays the government's part — the full stateful flow, the real error catalog, the async receipt — so your code runs unchanged against a faithful stand-in.
$ proben networks it-sdi Clearance · in-path Italy pl-ksef Clearance · multi-step Poland sa-zatca Real-time reporting Saudi Arabia my-myinvois 5-corner · Peppol-CTC Malaysia eu-peppol 4-corner · interoperable Peppol $ proben run --network pl-ksef@2026 --scenario reject-then-fix ▸ challenge → auth-token → session-open → submit ✗ REJECTED KSeF 21001 — buyer NIP not found ▸ fix applied → resubmit ✓ CLEARED UPO KSeF-2026-8842·PL · 1.2s
Clearance
In-path, blocking. Italy SdI, Poland KSeF, India IRP, Saudi ZATCA.
Real-time reporting
Parallel, non-blocking. Hungary NAV, Spain SII.
4-corner Peppol
Decentralised, interoperable mesh. EU, AU, NZ, SG.
5-corner CTC
A fifth corner observing the mesh. Malaysia, Belgium.
Post-audit
The traditional model — archive & report on demand.
Interested in Proben?
It's in active design and validation. Tell us and we'll reach out — whether you'd test integrations against it, self-host it, or help shape which networks land first.