Everything you need for compliant invoicing
From API and SDK to multi-tenancy and global compliance. Built for developers, designed for scale.
API & Developer Experience
Built for developers who value great documentation, type safety, and modern tooling.
REST API with OpenAPI 3.1
Complete REST API with full OpenAPI specification. Every endpoint documented with examples.
TypeScript SDK
Auto-generated SDK with full type safety. Async iterators for pagination. Tree-shakeable for smaller bundles.
API Explorer
Try the API directly in your browser. No setup required. Powered by Scalar for the best developer experience.
Sandbox Environment
Test your integration without consequences. Separate API keys for sandbox and live. Same features in both environments.
Copy-Paste UI Components
React components you can copy into your project. Full ownership. Modify freely without breaking changes.
Comprehensive Documentation
Quickstart guides, API reference, examples, and tutorials. Everything you need to integrate fast.
Multi-Tenancy & White-Label
Enable your customers to issue invoices from within your product. Like Stripe Connect, but for invoicing.
Entity Isolation
Each entity gets their own isolated space. Data never mixes. Full security between tenants.
Custom Branding
Upload logos, set colors, customize settings per entity. Your customers see their brand, not yours.
Custom Numbering
Each entity can have their own document numbering sequence. Fully configurable formats.
Per-Entity Settings
Currency, language, tax settings, compliance modules - all configurable per entity.
Scoped API Keys
Generate API keys per environment (sandbox/live). Full isolation between test and production data.
Accountant Mode
Manage multiple clients from a single account. Switch between entities seamlessly.
Global Compliance
EU e-invoicing, VIES validation, reverse charge. We handle the tax complexity so you can focus on your product.
VIES Validation
Automatic EU VAT number validation. Real-time checks against the official VIES database. Detect B2B vs B2C transactions.
Reverse Charge
Automatic reverse charge detection for EU cross-border B2B. Correct VAT handling without manual intervention.
EU E-Invoicing
Real-time fiscalization, e-invoice XML formats, payment QR codes. EU ViDA ready. Multiple countries live, more coming.
Multi-Currency Support
170+ currencies. Automatic formatting. Currency conversion support. ISO 4217 standard.
Multi-Language Documents
Multiple languages for documents. Locale-aware formatting. BCP 47 language tags.
Tax Calculations
Multi-rate tax per line item. Inclusive and exclusive pricing. Automatic rounding and totals.
White-Label Web App
Not just APIs. Get a full embeddable web application your customers can use directly. Remove our branding, add yours.
Full Dashboard
Revenue overview, recent documents, customer stats. Your customers get a complete invoicing dashboard out of the box.
Document CRUD with Live PDF Preview
Create, edit, and manage invoices, estimates, and credit notes. Real-time PDF preview as you type.
Customer & Item Management
Searchable customer database and product catalog. Auto-populate invoices from saved data.
Settings & Configuration
Entity settings, branding, numbering formats, tax configuration. Your customers manage everything themselves.
13 UI Languages
EN, DE, SL, HR, IT, FR, ES, PT, NL, PL, and AT variants. Each entity can choose their preferred language.
Removable Branding
Hide Space Invoices branding entirely. Your customers see your brand, not ours. Magic link SSO for seamless access.
Document Management
Everything you need to create, manage, and deliver professional invoices.
Multiple Document Types
Invoices, estimates, credit notes. All with consistent APIs and workflows.
Draft/Finalize Workflow
Create drafts, preview, then finalize. Prevents accidental issuance. Locked after finalization.
Custom Numbering
Configure your own document number formats. Sequential by year, by entity, or custom patterns.
Line Item Management
Add products, services, discounts. Automatic calculations. Multi-rate taxes per line.
Public Sharing Links
Generate shareable links for customers. No login required. Perfect for self-service.
PDF Generation
Professional PDF output. Multiple templates. Custom branding. Print-ready.
Create with live preview
Build professional invoices with our split-screen editor. See your PDF update in real-time as you type.
- Real-time PDF preview
- Auto-calculated taxes
- Draft to Finalize workflow
- Multi-currency support
Invoices
| NUMBER | CUSTOMER | DATE | TOTAL | STATUS |
|---|---|---|---|---|
| INV-2024-0143 | AC Nova Consulting | Dec 15, 2024 | 3,782.00 | PAID |
| INV-2024-0142 | TI Tech Industries | Dec 12, 2024 | 1,850.00 | PENDING |
| INV-2024-0141 | GS Global Systems | Dec 10, 2024 | 4,200.00 | PAID |
| INV-2024-0140 | NE Nova Enterprise | Dec 08, 2024 | 2,150.00 | DRAFT |
Organize and track
Manage all your documents in one place. Filter, sort, and take action on invoices, estimates, and credit notes.
- Multiple document types
- Status tracking
- Quick actions menu
- PDF download
Start building for free
Free sandbox with no time limit. First entity free in production. No credit card required.