InvoiceXML
E-invoicing API for creating, validating, converting and previewing Peppol BIS, XRechnung,
InvoiceXML is a REST API for creating, validating, converting and extracting e-invoices in Peppol BIS, XRechnung, Factur-X, ZUGFeRD, UBL and CII formats. It addresses the problem of differing national mandates and frequently changing rule sets: rule sets are updated on their legal effective dates, profiles are detected automatically, and documents are processed in memory without being stored.
Capabilities include format-specific create, validate, convert, extract and embed endpoints, PDF/A-3b hybrid generation, rendering structured formats as PDF previews, and extraction of invoice data to JSON. Validation runs against EN 16931 and country Schematron rules with field-level error details. Integration options include a REST API with OpenAPI specification, an email gateway, Zapier apps, and an MCP server for AI agents.
InvoiceXML is aimed at developers and teams integrating e-invoicing into ERPs, checkout systems or AI-driven workflows. It is packaged as a 30-day free trial with no credit card required, followed by Starter, Business, Professional and Enterprise editions. The lower tiers are billed by annual or monthly subscription with annual invoice volume limits, file size limits and concurrent request allowances; Enterprise is custom and billed by invoice.
12 alternatives to InvoiceXML
Ranked by how well each tool replaces InvoiceXML: shared features, audience, price and popularity.
Online invoicing software for Portuguese businesses, freelancers and online stores.
Covers 9 of 15 key features and has a free plan.
Free plan67 out of 100 matchContact salesThe invoicing infrastructure for global businesses
Covers 8 of 15 key features and has a free plan.
Free plan65 out of 100 matchContact salesAutomated invoice management – all invoices automatically collected and seamlessly exporte
Covers 6 of 15 key features and has a free plan.
Free plan63 out of 100 matchFreeRun your business with clarity — invoicing, payments, expenses, time-tracking and projects
Covers 3 of 15 key features, has a free plan and is open source.
Free planOpen source61 out of 100 match$14/moFree and unlimited electronic invoicing software with quotes, CRM, appointments and a mini
Covers 5 of 15 key features and has a free plan.
Free plan60 out of 100 matchContact salesCreate and send invoices as a PDF attachment using over 100 professional invoice templates
Covers 0 of 15 key features and has a free plan.
Free plan59 out of 100 matchContact salesInvoicing software for freelancers, online sellers, and companies.
Covers 0 of 15 key features and has a free plan.
Free plan59 out of 100 match$12/moElectronic invoicing software simple now, powerful when you grow
Covers 0 of 15 key features and has a free plan.
Free plan59 out of 100 match$4/moInvoicing software that grows with you
Covers 0 of 15 key features and has a free plan.
Free plan59 out of 100 matchContact salesElectronic invoicing for businesses and freelancers, compliant with myDATA.
Covers 7 of 15 key features and has a free plan.
Free plan59 out of 100 match$11.90/moA free service that delivers invoices and pay slips in your online bank, where you can pay
Covers 2 of 15 key features and has a free plan.
Free plan58 out of 100 matchFree