One invoice.
For every order.
From every platform.
Rioko is the engine that connects your store, your payment gateway and your invoicing software. Webhook in, invoice out — in under a second, with VAT ID detected, VAT calculated and tax exemption applied per code M01–M99.
Every platform talks to Rioko.
Rioko talks to every invoicing program.
Instead of maintaining seven point-to-point integrations, you maintain one. We add new payment and invoicing platforms to the engine as the ecosystem grows.
Payments
input · paid orders arrive via webhook
Invoicing
output · documents issued to the right gateway
Three steps. Once.
Setting up Rioko takes less than issuing one invoice by hand. After that, never again.
Connect your store and program
Paste your Shopify domain and your InvoiceXpress API key. The 4-step wizard detects scopes, registers webhooks and validates credentials in real time.
POST /api/integrations/activate{ "shopify_domain": "my-store.myshopify.com","ix_account": "my-company" }200 OK · webhooks registered
Set your tax rules
VAT included or separate? Default exemption reason? Specific invoice series? All in one panel — no code, no .env files.
Forget it. Rioko invoices.
Every paid order creates an invoice in the right program, with the customer's VAT ID, correct VAT rate and AT legal text included. Refunds become credit notes. Automatic.
- 1 order = 1 invoice (D1 + KV idempotency)
- Refunds → credit note, automatic
- Auditable per-event logs
Built for Portuguese tax rules.
Not translated from them.
Rioko was born in Lisbon, inside a tax office. It is not an American SaaS with a PT pack — it's the other way around.
AT compliance
Legal text for every exemption reason (M01–M99) injected into invoice notes.
Smart VAT ID
VAT ID detection across note_attributes, order notes and billing address, with PT algorithmic validation.
Double idempotency
Atomic table in D1 + KV cache. Duplicate webhooks, gateway retries, race conditions — all neutralized.
Encryption at rest
Shopify and InvoiceXpress API keys are encrypted before any write.
Simple. Per integration.
Pay only for the integrations you connect. No fees per document, no volume caps. Cancel anytime.
Pay month-to-month. Cancel anytime.
- One integration from the catalog
- Automatic invoicing in < 1s
- VAT ID · VAT · M01–M99
- D1 + KV idempotency
- Email support
Two months free. The engine, all year.
- Everything in monthly
- 2 months free (€75 vs €90)
- Integration roadmap priority
- Email support · response < 24h
Tailored integration: ERP, marketplace, specific flows. Reviewed case by case.
- Custom-built integration
- Multiple stores / multiple VAT IDs
- Dedicated SLA
- Technical onboarding video call
Prices exclude VAT · billing issued via InvoiceXpress
Frequently asked questions.
Everything you need before connecting your first store. Can't find your answer? Talk to us.
Rioko automates invoicing for your online sales. It connects Shopify or Stripe to your certified invoicing software (InvoiceXpress, Moloni or Vendus) and issues an invoice for every order automatically, with no manual work.
Connect your first store in four minutes.
No card. No install. No checkout extensions. Set it up once, invoice forever.