Space Invoices
Embedded invoicing and compliance infrastructure for platforms
Space Invoices is a multi-tenant invoicing API designed for SaaS platforms, marketplaces, fintech products, and multi-entity operators that need to issue compliant invoices inside their own product workflows. It addresses the complexity of entity isolation, country-specific tax and e-invoicing rules, corrections, and ongoing compliance maintenance across 65+ countries.
The platform includes a TypeScript SDK, a REST API with an OpenAPI 3.1 specification, an API Explorer, embeddable React UI components, and a white-label web dashboard (Apollo) for managing entities, documents, and settings. Core capabilities cover invoices, estimates, credit notes, and delivery notes with draft/finalize workflows, multi-currency and multi-language support, VIES validation, reverse charge detection, e-invoicing formats with optional Peppol delivery, recurring invoices, webhooks, and integrations with Stripe, Shopify, WooCommerce, QuickBooks Online, and Zapier. Per-entity branding, custom numbering, business units, and scoped API keys support tenant isolation.
Space Invoices is aimed at product and engineering teams embedding invoicing into platform workflows rather than operating a single-business invoice tool. It offers a free sandbox environment with no time limit and separate sandbox and live API keys, along with self-serve evaluation through documentation and an API Explorer before moving to production.
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