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Scell.io vs Sage Intacct
Sage Intacct cloud ERP vs Scell.io lightweight e-invoicing API
Sage Intacct is a cloud financial ERP for mid-market to enterprise, recognised for multi-entity consolidation, cost accounting, and advanced financial reporting. The REST/SOAP API is comprehensive but complex to integrate (multi-level auth, dense data model). Scell.io addresses a simpler, focused need: producing France 2026-compliant Factur-X invoices and electronically signing, in a few API calls, with native SDKs. Sage Intacct fits if you need accounting consolidation; Scell.io if you need a fast-to-integrate e-invoicing layer.
Key facts
- Sage Intacct: full cloud financial ERP
- Scell.io: e-invoicing/signature layer only
- Sage: complex auth (sender ID + login + session)
- Scell.io: X-API-Key header only
- Sage: no native Factur-X (partners)
- Scell.io: Factur-X 5 profiles + EU-SES included
Code example
# Scell.io — intégration en 1 appel POST
curl -X POST https://api.scell.io/api/v1/invoices \
-H "X-API-Key: sk_live_xxx" \
-H "Content-Type: application/json" \
-d '{"format": "factur-x", "seller": {"siret": "12345678901234"}, "buyer": {"siret": "98765432109876"}, "lines": [{"description": "Conseil", "quantity": 10, "unit_price": 100, "vat_rate": 20}]}'