Scell.io v2 launch: electronic invoicing + signature in one API
Scell.io v2: the invoicing and signature platform for developers
Today, we officially launch Scell.io v2 — the complete API platform unifying electronic invoicing and eIDAS SES signature. No thousand admin clicks. No parameter tables. Just a simple API, complete SDKs, and your product gets fiscal compliance for free.
The problem we solve
Before Scell.io, adding Factur-X electronic invoicing to your SaaS required:
- Learning complex XML schemas (ISO 20022, UBL, CII)
- Coding a PDF/A-3 generator without errors (horstoeko, zugferd)
- Integrating with PDP connections (digitalization partner platforms)
- Managing Schematron validations
- Auditing every invoice for legal compliance (ISCA)
- Maintaining an immutable audit trail for 6+ years
For signature, same story: complex OAuth2, eIDAS validations, legal archiving.
Result: 4–6 weeks of work before your first invoice. And only if you had the right skills in-house.
What Scell.io offers now
All of that, now, in a single REST API:
Invoicing
// 1. Create an invoice
const invoice = await scell.invoices.create({
buyer: { name: "Acme Corp", siret: "12345678901234" },
lines: [{ description: "Consulting", quantity: 10, unitPrice: 100 }],
outputFormat: "factur-x", // PDF + XML
});
// 2. Transmit to PDP
await scell.invoices.transmit(invoice.id, "superpdp");
// 3. Receive webhooks
// POST /webhook : { event: "invoice.accepted", invoiceId: "...", pdfUrl: "..." }
Factur-X, UBL, CII? All auto-generated. Validation? Done. Legal archiving? Done. Your team focuses on your business.
Signature
// 1. Create a signature
const signature = await scell.signatures.create({
documentUrl: "https://...",
signers: [{ email: "john@acme.com" }],
signatureMode: "drawn",
});
// 2. Send to signer
// Auto email: unique link + 30-second interface
// 3. Retrieve signed PDF
const signedPdf = await scell.signatures.download(signature.id);
OTP, audit trail, legal archiving? Built-in. Nothing for you to do.
Multi-tenant from day one
Each SaaS customer has their own namespace, invoices, API key:
// Scell.io API on your backend
const client = new ScellClient({ apiKey: "sk_live_..." });
// Create a sub-tenant (customer of your customer)
const subTenant = await client.subTenants.create({
name: "Acme Corp",
contactEmail: "admin@acme.com",
});
// Their invoices are isolated
const acmeInvoice = await client.invoices.create({
subTenantId: subTenant.id,
// ...
});
Public roadmap 2026
Q3 2026 — Quotes + deposits/balance invoices
- Signable quote generation
- Quote → deposit invoice/balance invoice conversion
- Immutable version history
Q4 2026 — Advanced webhooks + integrations
- Webhooks for every step: creation, validation, transmission, refund
- Stripe integration for invoice payment
- Zapier / Make connectors
2027 — QES (qualified signature)
- Optional migration to QES for regulated sectors
- NotaireID support (electronic notaries)
Why Scell.io over alternatives?
| Aspect | Scell.io | Competitor A | Competitor B |
|---|---|---|---|
| Free API (sandbox) | ✅ | ❌ (paid freemium) | ✅ |
| TypeScript + PHP SDKs | ✅ | ❌ (REST only) | ✅ |
| Multi-tenant native | ✅ | ⚠ (add-on) | ❌ |
| Factur-X + Signature | ✅ | ❌ separate | ✅ |
| ISCA self-certified audit | ✅ | ⚠ NF525 certified (costly) | ❌ |
| French support | ✅ (live chat) | ❌ (email) | ✅ |
| Open documentation | ✅ (GitHub + llms.txt) | ❌ (closed) | ⚠ (GitHub) |
| Price / invoice (FR) | €0.20–0.50 | €2–5 | €1–2 |
Pricing
- Sandbox: free, unlimited
- Production:
- Factur-X invoices: €0.30–0.50 per invoice (VAT included)
- SES signatures: €0.05–0.10 per signature (OTP SMS included)
- API keys: free (per-tenant rate limits, 100/s)
No subscription. No monthly fee. Pay only for what you use.
Try now
- 📚 Docs: https://docs.scell.io
- 🔐 Dashboard: https://app.scell.io
- 🎮 Sandbox API: https://api.scell.io (auto test keys)
- 💬 Discord: link in docs
Free 30-day trial: no credit card. Create 50 test invoices.
Thanks to our early customers
Big thanks to the 47 teams who helped build Scell.io during our closed beta:
- All the consulting SSII and project managers who tested signatures
- The B2B SaaS companies (accounting, HR, e-commerce) who validated Factur-X
- The freelancers and solo entrepreneurs who understood the automation stakes
Your feedback is why we're here.
What's next?
We propose two things:
- Integrate Scell.io into your product this week (30 min dev, promise)
- Join the community — Discord, forum, webinars on electronic invoicing
Welcome to digital France (and Europe). 🚀
Ready? Create a sandbox account →
Or talk to our team: hello@scell.io