Generate and validate EU e-invoices with one API.
Eleven EU and national e-invoice formats — UBL, Peppol BIS, XRechnung, Factur-X, FatturaPA and more — plus PDF, screenshot, email verification and article extraction tools behind the same key.
Real key in seconds, no card — free tier live today, paid plans at launch. The free key covers E-Invoicing; Document Tools are free to try in the demo below. Nothing on this page is mocked.
Article title · 1,240 words
One platform. Five focused APIs.
5 APIs · 1 keyfree live demos below
E-Invoicing API
Generate, validate, convert and render 11 EU and national e-invoice formats — UBL, CII, Peppol, XRechnung, FatturaPA, Facturae, KSeF and more — behind one API key.
- Generate compliant XML (UBL/CII) or PDF (Factur-X) invoices from structured JSON.
- Validate against the official rule sets — every finding with its rule ID.
PDF API
Merge, split, watermark, password-protect, compress, convert and read PDFs — ten operations, one API key.
- Merge, split, watermark and password-protect any PDF.
- Compress files, or convert HTML/a public URL into a PDF.
Screenshot API
Turn any public URL into a pixel-perfect capture — full page or viewport, PNG or JPEG, rendered by a real browser.
- Full-page or viewport captures, PNG or JPEG, custom width and delay.
- Block ads, trackers and cookie banners before the shot is taken.
Email Verification API
Score an email address before you trust it — syntax, MX records, disposable domains, role accounts and free providers, in one call.
- Syntax and MX record checks — a real deliverability signal, not a regex.
- Disposable-domain and role-account detection (info@, admin@…).
Article Extraction API
Any article URL in, clean structured text out — title, word count and main content, no nav bars or cookie walls.
- Strips navigation, ads, cookie walls and boilerplate automatically.
- Returns title, word count and the main content as text or Markdown.
Try it live
one demo, five tabssame engine as every product page
Live call to the real validator · max 200 KB (XML) / 10 MB (PDF) · nothing is stored
Same engine as the full validator page — more profiles, plus a downloadable PDF report.
Generate a full invoice — free, in your browserNo code — try the full form
Live call to the real generator · up to 3 lines · nothing is stored
Or your own PDF · max 5 MB · processed in memory, never stored · 5 runs/day per visitor
Doing this repeatedly? The same operation is one API call — at launch →
Compress
Merge
Split
Preset samples, no upload here · live call to /pdf/compress, /merge, /split · rate-limited per visitor
Public pages only, captured as any visitor would see them · custom URLs: 5 captures/day per visitor · you are responsible for the URLs you submit
Doing this repeatedly? The same operation is one API call — at launch →
Live DNS/MX lookups · 5 checks/day per visitor · the address is not stored and no email is sent
Doing this repeatedly? The same operation is one API call — at launch →
Public pages only · custom URLs: 5 extractions/day per visitor · nothing is stored
Doing this repeatedly? The same operation is one API call — at launch →
One API. 11 EU invoice formats.
generate · validate · convert · render11 formats, 1 API key
Generate compliant XML (UBL/CII) or PDF (Factur-X) invoices from structured JSON.
Validate against the official rule sets — every finding with its rule ID.
Convert losslessly between UBL and CII, or embed/extract Factur-X.
Render a clean HTML/PDF view of any invoice, including the official KoSIT layout.
Which format do you need?
pick your countrysee the exact endpoint
One API key, 11 EU and national invoice formats — pick your country on the formats hub for the exact mandate date, endpoint and a ready curl example.
Every format we support
generate · validate · convert · render11 formats, 1 API key
For developers
REST API · SDKs · MCPdocs, error codes, everything
- Official Python and TypeScript SDKs, generated from the same OpenAPI spec.
- MCP server — call CrateAPI from Claude, Cursor or any MCP client.
- Full REST reference and copy-paste code samples.
- Every error carries a documented rule ID — no guessing.
- Free, unmetered validation — no key required to start.
Trust, by design
nothing hidden, nothing storedProcessed in memory in the EU, discarded immediately — stateless by design. No cookies, no tracking.
Documented limits on every endpoint, published in the docs — no surprise throttling, no hidden ceilings.
Our uptime and latency are measured every minute and published live — see status page.
522 rules, each with its own reference page — a rule ID, not a guess, for every rejection.
Start free. Scale when you need to.
Free key today · paid plans at launchjoin the list for 20% off
The Free Sandbox is live today, with unlimited validation — get a key and start now. Starter through Ultra, and Document Tools plans, open when CrateAPI launches; validation stays free forever, on every tier.
Get your API key
Get a free API key instantly — no password, no card. It covers unlimited validation (fair use) plus 50 documents/month (max 5/day).
or
Already have a key? Same form — or Google — logs you back in. Manage your key →
The free key covers the E-Invoicing API. Document Tools plans open at launch.
Our uptime and latency are measured every minute and published live — see status page.