REST API for professionals

For your other apps, too.

DocUnderstand comes with a local REST API. FileMaker, Xojo, scripts, or your own tools can send a document over HTTP and get back the filename, Finder tags, and structured data.

Terminal / Scripts FileMaker Xojo

Terminal FileMaker · Script Steps Xojo · URLConnection

curl -X POST http://localhost:8787/process \  -H "Authorization: Bearer ••••••••" \  -H "Content-Type: application/json" \  -d '{"filename":"Invoice.pdf", ...}'

// Encode foto.jpg as Base64Set Variable [ $data ; Base64EncodeRFC(...) ]Insert from URL [ $response ;  "http://localhost:8787/process" ]

' Encode Contract.pdf as Base64Var req As New URLConnectionreq.SetRequestContent(json, "application/json")Var antwort As String = req.SendSync("POST", _  "http://localhost:8787/process")

DocUnderstand

localhost:8787 · 100% local on your Mac

OCR & analysis …

Response · JSON

{  "filename": "2026-08-10 T-Mobile…pdf",  "documentType": "Invoice",  "tags": ["Invoice", "Mobile"],  "text": "Your invoice for August 2026 …",  "extraction": {    "invoiceNumber": "RG-2026-081045",    "grossAmount": 99.00  }}

{  "filename": "2026-07-14 Beach Vacation.jpg",  "documentType": "Photo",  "tags": ["Photo", "Vacation"],  "exif": {    "camera": "iPhone 16 Pro",    "dateTaken": "2026-07-14 16:32",    "gpsLocation": "43.71° N, 7.26° E"  }}

{  "filename": "2026-03-01 Acme Lease.pdf",  "documentType": "Contract",  "tags": ["Contract", "Lease"],  "text": "Lease agreement between Acme GmbH …",  "extraction": {    "customerNumber": "K-88213",    "servicePeriod": "from 2026-03-01"  }}