# Space Invoices API

> RESTful API for creating, managing, and fiscalizing invoices.
> Base URL: https://eu.spaceinvoices.com

## Guides
- [Quickstart](/guides/quickstart): Get started with your first invoice
- [Introduction](/guides/introduction): API overview and architecture
- [Authentication](/guides/authentication): API keys and tokens
- [Concepts](/guides/concepts): Core concepts and data model
- [Invoices](/guides/invoices): Creating and managing invoices
- [Customers & Items](/guides/customers-items): Managing customers and items
- [Other Documents](/guides/other-documents): Estimates, credit notes, advance invoices
- [Rendering](/guides/rendering): PDF and HTML rendering
- [Email](/guides/email): Sending documents by email
- [Multi-Tenancy](/guides/multi-tenancy): Entity management for platforms
- [User Access](/guides/user-access): User roles and permissions
- [Idempotency](/guides/idempotency): Safe request retries
- [Compliance](/guides/compliance): Tax compliance overview
- [Compliance: EU](/guides/compliance-eu): EU VAT validation and reporting
- [Compliance: Slovenia](/guides/compliance-slovenia): FURS fiscalization setup
- [Compliance: North America](/guides/compliance-north-america): US and Canada tax compliance

## API Reference: Documents
- [Invoices](/api/invoices): Invoice management operations.
- [Estimates](/api/estimates): Estimate management operations.
- [CreditNotes](/api/creditnotes): Credit note management operations.
- [Advance Invoices](/api/advance-invoices): Advance invoice management operations. Create, retrieve, and list advance invoices. Advance invoices are issued before goods/services are delivered to collect prepayment. When linked to a final invoice, the paid amount is applied as a payment.

## API Reference: Data
- [Customers](/api/customers): Customer management for invoice recipients.
- [Items](/api/items): Product and service catalog management. Items can be referenced in invoices and include pricing and tax information.
- [Taxes](/api/taxes): Tax rate management with support for historical rate changes. Each tax can have multiple rates with different valid_from dates to track rate changes over time.
- [Payments](/api/payments): Payment management operations.

## API Reference: Files
- [Files](/api/files): File metadata management.
- [Upload](/api/upload): File upload endpoints for images and documents. All uploads are scoped to entities.

## API Reference: Entities & Access
- [Entities](/api/entities): Legal entity (business, organization) management. Entities are the core organizational unit that owns customers, invoices, and items.
- [Entity Users](/api/entity-users): Manage user access to entities with role-based permissions (viewer, editor, admin).
- [Entity Invitations](/api/entity-invitations): Manage entity user invitations - list, accept, cancel, resend.
- [Entity API Keys](/api/entity-api-keys): Manage entity-scoped API keys (ek_* prefix) for userless access to entities.
- [Entity Stats](/api/entity-stats): Flexible aggregation queries for entity data. Query counts, sums, averages across invoices, payments, customers, and more.

## API Reference: Users & Settings
- [Users](/api/users): User authentication and profile operations. Users can access multiple entities and manage their account settings.

## API Reference: Compliance
- [VIES](/api/vies): VIES (VAT Information Exchange System) validation for EU tax numbers.
- [Company Registry](/api/company-registry): Public company registry data for autocomplete. Search companies from government registries (e.g., AJPES for Slovenia) to auto-fill customer details.
- [Tax Reports](/api/tax-reports): Generate tax reports for Slovenian companies. Export KIR (Knjiga izdanih računov) in FURS-compliant XML/ZIP format for eDavki upload.
- [FURS Settings](/api/furs-settings): Configure FURS fiscalization settings including numbering strategy and operator details
- [FURS Certificate](/api/furs-certificate): Upload and manage the P12/PFX certificate required for FURS fiscalization
- [FURS Premises](/api/furs-premises): Register and manage business premises (physical locations or movable units) for FURS fiscalization
- [FURS Devices](/api/furs-devices): Register and manage electronic devices (cash registers, POS terminals) for FURS fiscalization
- [FINA Settings](/api/fina-settings): Configure CIS (Croatia) fiscalization settings including operator OIB, PDV system, and numbering
- [FINA Certificate](/api/fina-certificate): Upload and manage the P12/PFX certificate required for Croatian CIS fiscalization
- [FINA Premises](/api/fina-premises): Manage business premises for FINA fiscalization
- [FINA Devices](/api/fina-devices): Manage electronic devices within business premises

## API Reference: Email & Exports
- [Email](/api/email): Email sending endpoints for sending invoices and documents. Automatically includes company logo from entity settings, generates public shareable invoice links, and optionally attaches PDFs.
- [Exports](/api/exports): Export documents (invoices, estimates, credit notes) to Excel or CSV format.
- [Activities](/api/activities): Activity log for entity resources. Tracks actions like creation, updates, deletions, and custom events across all resource types. Read-only - activities are created automatically by the system.

## API Reference: White Label
- [White Labels](/api/white-labels): White-label configuration for multi-product support.
- [White-Label Subscriptions](/api/white-label-subscriptions): Entity-level subscription management for white-label products.

## API Reference: Integrations
- [Webhooks](/api/webhooks): Webhook endpoint management for receiving real-time event notifications. Configure URLs, select events, and monitor delivery status.

## Full Documentation
- [llms-full.txt](/llms-full.txt): Complete API reference in a single file