bludelta.ai is a machine learning-based invoice and document capture solution. Based on an image or pdf file as input it returns data that can be processed by machines, works out of the box with standard recognition rates of the most popular fields >90%. For further general information and a free test please visit: https://bludelta.ai

This website documents the core of the bludelta.ai service – the bludelta.ai JSON API. The API returns document and invoice details (e.g. like an invoice or document date, invoice id, gross/net amounts, VATs, and many more fields). Aside from the extracted data, it returns also raw text (ocr) and a pdf with marks of the extracted fields. The API should be used to programmatically integrate an invoice capture service into your existing workflows. It is cloud-based but can be also installed locally. Invoices are just interpreted and NOT STORED!

API Access Token
To use this service you will need an API token. In case you don’t have one yet please contact bludelta-support@blumatix.at and ask for a free test key.

Sample Integration Clients
You can download sample clients in C#, java, and Powershell from our GitHub repository: https://github.com/blumatix
Request an open API compliant API description file from here.

No Developer? Test bludelta.ai with our Web Interface
bludelta.ai offers also UI components on top of our core API. E.g. in case you just want to do a quick test without accessing our programmatic interface then we recommend you to use our online interface: https://bludelta.ai/testen

Supported invoice details

Release Information

What's New in V1.15.1

• US#9741 For German documents, all contacts found are returned. The contact prediction quality for german documents also improved.

What's New in V1.15

• US#8865 Language Portuguese and Region Portugal added
• US#9634 New invoice detail: Company Registration number (for czech)
• US#9676 New invoice detail: All Contacts

Improvements

• US#8691 Language Polish and region Poland improved
• US#9734 All found invoice details are returned for document type "Other"
• US#8899 Improvement of Contacts

Issues / Bugs fixes

• ISSUE#9367 Czech ICO number needed
• ISSUE#9372 OCR splits up one word into two
• ISSUE#9374 Deficient pfd format fails to return predictions
• ISSUE#9644 Fix a situation where a Due Date was predicted instead of the Invoice Date
• ISSUE#9726 Fix Amazon Business invoices
• ISSUE#9737 Fix Deutsche Telekom invoices
• BUG#9600 Fix Facebook invoices
• ISSUE#9758 Fix BLU DELTA Service Crashes due to extremely large images in PDFs
• ISSUE#7709 Same Tax number highlighted several times in Result Pdf
• ISSUE#9501 Invoice Id improved
• BUG#9115 Amounts followed by special characters where not found

What's New in V1.14

• US#8857 Language Norwegian and Region Norway added
• US#8858 Language Slovakian and Region Slovakia added
• US#8859 Language Croatian and Region Croatia added
• US#8860 Language Turkish and Region Turkey added
• US#8492 Region United Arab Emirates added
• US#7846 New invoice detail: KID Number
• #9289 Temporarily reduced Vat Rates in Norway
• US#8493 Region South Africa added
• US#7847 Use of Swiss QR Code

Improvements

• US#8630 Vat Id classification Sender/Receiver improved
• US#8690 Region Czechia improved
• US#8851/8855 Line Items improved

Issues / Bugs fixes

• Bug#7710 BIC was often wrong
• ISSUE#8954 Fixed OCR problems which could happen in specific situations (OnPremise)
• ISSUE#8944 Document Type is not correct
• ISSUE#8959 Invoice Id is not correct

What's New in V1.13

• Changed IsrNumber to IsrReference
• US#8002 New invoice detail Payment conditions: Due Date and Discount
• US#8683 New invoice detail: Isr Subscriber
• US#8419 Full text can be requested
• US#8494 Language Dutch and Region Netherlands added
• US#8366 Region France added
• US#8367 Region Mexico added
• US#8368 Region Spain added
• US#8493 Region South Africa added
• US#8495 Region Italy added

Issues / Bugs fixes

• ISSUE#8788 Missing Result Pdf fixed
• ISSUE#8697 Corrupt Pdf format fixed
• ISSUE#8698 Problems with Bank Group in UK fixed
• ISSUE#8552 Invoice Id fixed

What's New in V1.12

• Changed DetectInvoiceRequest.Filter, DetectionResponse.Type and DetectionGroupResponse.Type from Int32 to Int64 to support more invoice details
• US#8310 Language Czech and Region Czechia added
• US#8220 Languages Italien and French and Region Switzerland added
• US#8281 Region United Kingdom added
• US#8168 Region New Zealand added
• US#8167 Region Australia added
• US#7842 New invoice detail: Bank Information
• US#7845 New invoice detail: Swiss ISR Reference

Improvements

• US#8167 Language English has been improved
• 8576 Multiple Receiver Order Ids and Delivery Note Ids predicted, independent from line items
• US#8356 Vat Ids for Poland have been improved

Issues / Bugs fixes

• ISSUE#8567 Timeout for invoice fixed
• ISSUE#8389 Limit of Line Items removed
• ISSUE#8438 Fix multiple Vat Groups

What's New in V1.11

• US#7874 Temporarily reduced Vat Rates in Germany and Austria implemented

Bug/Issue Fixes

• ISSUE#7600: Unit price in line items is not of datatype Amount
• ISSUE#8039: Invoice Id cut off
• BUG#7259: Incorrect Bounding Box for Sender name
• BUG#7819: OnPremise: Timeout with pings
• BUG#7967: Currency missing
• BUG#8137: Wrong Sender Order Id on Spanish invoice
• BUG#8163: Typename missing for Document Type "Other"
• BUG#8170: OnPremise: Setup failed with new VC++ runtime already installed
• BUG#8215: Error in Result-Pdf creation with mixed mode pdfs
• BUG#8229: Some image-based Result-Pdfs do not render the OCRWord-Layer

What's New in V1.10.1

• US#7455: "Glow effect" in Result-Pdf file can be switched on/off in configuration (default: off)
• Default for number of processed pages has been increased from 5 to 10

Improvements

• ISSUE#7640: Invoice Format detection (letter or receipt) has been improved
• ISSUE#7765: Document Type for Polish Invoices improved

Bug/Issue Fixes

• BUG#7819: In some special situation the service "ping" ran into timeout
• BUG#7876: Fixed a 3rd party memory leak by using a new version of the ML.Net library

What's New in V1.10

• US#7444: Language Polish and region Poland added
• US#7627: Due Date - beta / custom invoice detail

Improvements

• Recognition rate improved for: Invoice Date, Delivery Date, Grand Total Amount, Vat Groups
• Number of processed pages increased to ten
• Checksum validation has been added to Spanish Vat Ids
• US#7460: Logging has been improved
• ISSUE#7661: additional format of German Vat Id
• ISSUE#7613: Line items improved

Bug/Issue Fixes

• ISSUE#7484: Sender Order Ids in Line items classified as Spanish Vat Ids
• BUG#7466: Document Type "Other" not handled correctly
• ISSUE#4832: Memory Leak in Pdf creation
• BUG#7619: Contact recognition fails for unknown language
• ISSUE#7667: Wrong prediction for Delivery Note Id
• BUG#7727: Exception while pdf creation
• ISSUE#7622: Error in Line Items

What's New in V1.9.4

• US#7425: New value "Other" has been added to invoice detail "Document Type"
• US#7425: Document Format information has been added to invoice
• US#7423: Performance has been improved significantly
• US#7460: Logging has been improved

Bug/Issue Fixes

• BUG#7437: Vat rate format exception
• BUG#7454: False Positives reduced
• BUG#7464,7456: Line items model returned internal error

What's New in V1.9

• US#7339,7341,7344,7358: Invoice details for Spanish Invoices
• US#7162: Embed OCR textfor scanned invoices in the result pdf
• US#7163:Deskew pages in scanned invoices in the result pdf
• US#7266:Draw bounding boxes for all new invoice details in the result pdf

Bug/Issue Fixes

• BUG#7422: Ensure that there is always only 1 LineItem-Bookmark in the ResultPdf
• BUG#7400: Pages with minimal text might crash the service
• BUG#7405: DeliveryNoteIds and ReceiverOrderIds within LineItems
• BUG#7414: Unit Price inLine Items incorrectly formatted

Deprecated

• NetTotalAmount - use VatGroups instead
• VatTotalAmount - use VatGroups instead

What's New in V1.8

• US#7032: Improved prediction of English invoices
• US#7052: Introduced separation of sender and receiver UID
• US#7164: Enable hover effect in results pdf
• US#7228: Added new detail receiver name, address and improved sender recognitions
• US#7262: Added new detail German Steuernummer
• US#7307: Added new detail BIC
• US#7237: General improvement of AI models for existing details
• BUG#6752: Net amount and VAT amount are equal in certain cases
• BUG#7030: Prediction Groups (VAT-Groups) are not marked in the Result-PDF currently
• ISSUE#7289: Result PDF shows results with just one color instead of 2
• ISSUE#7314: Sender name missing

What’s New in V1.7.2

• ISSUE#7310: all components build as x64
• ISSUE#7312: Performance issues: PdfSharp library removed
• ISSUE#7347: Logging improved

What’s New in V1.7.1

• BUG#7252: OCR Worker crashes fixed
• ISSUE#7275: Proxy Server not used - fixed
• BUG#7279: Version Property removed

What’s New in V1.7

• US#7107: Email has been added to Sender Contact
• US#6962: Quantity has been added to Line Item
• US#7240: Enable to add prefix to the standard REST-route

Improvements

• US#7180: Improved recognition rate for Invoice Id
• US#7181: Improved recognition rate for Invoice Date
• US#7088: Improved recognition rate for Line Items

Bug/Issue Fixes

• BUG#7211: Certain Pdf Invoices caused error during interpretation due to encoding error
• BUG#7238: Authentication Error is not returned for empty APIKEY

What’s New in V1.6.1

• US#7096: Get additional information for Uids: Sender or Receiver
• US#7186: Provide session id

Bug/Issue Fixes

• BUG#7157: VatGroups with empty net amount or vat amount did not include Value property.
• BUG#7149: Bounding Box was missing for Sender name.
• BUG#7150: Sender name was always returned, independent from user settings.

What’s New in V1.6

• US#7037: The recognition rate of Vat Groups has been improved.
• US#7047: The recognition rate of Sender has been improved, but it is still BETA.

Bug/Issue Fixes

• BUG#7101: Setup failed due to spaces in python bin path.
• BUG#7100: Http request over proxy did not work.
• BUG#7038: OCR crashed in high load situations.

New invoice detail Sender is currently in BETA state

What’s New in V1.5

• US#6976: The delivery slip number is now extracted from invoices. If there are more than one, all of them will be returned, except they are part of the line items.
• US#6983: The OCR text result is returned in the BLU DELTA API response. The structure contains the text and additional properties like position, size, bold, etc.
• US#7029: The BLU DELTA API returns a Http 500 error only in cases with system impact. In other cases an empty prediction is returned.
• US#7040: It is possible to distinguish different (sub-)customers who are using the same API key, by using an additional SubKey. The new SubKey can be provided additionally to the API Key in the Http header.

Bug/Issue Fixes

• BUG#7030: Prediction Groups are not marked in the Result Pdf
• ISSUE#7054: Labes on result Pdf on wrong location

New invoice detail Sender is currently in BETA state

What’s New in V1.4

• Support for Custom Models
• Support for Custom Smart Rules

Bug/Issue Fixes

• US#7016: In the result Pdf all invoice details are marked – not only the requested ones.
• US#7017: OCR is unable to process certain pdf formats.
• US#7021: A Pdf document with an unusual image size (e.g. very tall and narrow) can not be processed by the OCR.
• If a document can not be processed, a http 400 File Format error will be returned instead of a http 500 error.

What’s New in V1.3.x

• New invoice details (full list):
  InvoiceId, InvoiceDate, GrandTotalAmount, DocumentType, Ibans, UIDs, Currency, ReceiverOrderId, ReceiverOrderDate, SenderOrderId, SenderOrderDate, DeliveryDate, CustomerId, VatGroup (VatRate, VatAmount, NetAmount)
  
• Result PDF creation. The API creates a PDF that is enabled for highlighting extracted document details.
• Extended logging capabilities
• The performance of invoice analysation and feature creation was improved.
• Changes: The former parameter flags was renamed to filter. It is now optional. In case it's missing all invoice details for the current user will be returned.

Bug/Issue Fixes

• #6992: Http 500 error in case empty invoice was delivered to API. Now returns valid result but with empty predictions.
• #6997: Different prediction results between Online and Onsite API. Now returns toally equal results.
• #6999: Http 500 error in case no invoice currency could be found. Now returns valid result but with empty currency prediction.
• #7002: Processing time of very large invoices with big number of pages
• #6868: OCR fails on certain pdfs

https://api.bludelta.ai/

    {
    "DocumentResolution": <integer>,
    "DocumentFormat": <string>,
    "Language": "<string>",
    "InvoiceDetailTypePredictions": <DetectionResponse>[
    {..."TypeName": "DocumentType"...},
    {..."TypeName": "InvoiceId"...},
    {..."TypeName": "SenderOrderId"...},
    {..."TypeName": "CustomerId"...},
    {..."TypeName": "InvoiceDate"...},
    {..."TypeName": "SenderOrderDate"...},
    {..."TypeName": "ReceiverOrderDate"...},
    {..."TypeName": "DeliveryDate"...},
    {..."TypeName": "Iban"...},
    {..."TypeName": "Bic"...},
    {..."TypeName": "SenderVatId"...},
    {..."TypeName": "ReceiverVatId"...},
    {..."TypeName": "UId"...},
    {..."TypeName": "NetTotalAmount"...},
    {..."TypeName": "VatTotalAmount"...},
    {..."TypeName": "GrandTotalAmount"...},
    {..."TypeName": "InvoiceCurrency"...},
    {..."TypeName": "DeliveryNoteId"...},
    {..."TypeName": "ReceiverOrderId"...},
    {..."TypeName": "TaxNumber"...},
    {..."TypeName": "Sender"...},
    {..."TypeName": "IsrReference"...},
    {..."TypeName": "IsrSubscriber"...}],
    {..."TypeName": "KId"...}],
    {..."TypeName": "CompanyRegistrationNumber"...}],
    "PredictionGroups": <DetectionGroupResponse>[
    {
    ...,
    "TypeName": "VatGroup",
    "InvoiceDetailTypePredictions": <DetectionResponse>[
    {..."TypeName": "VatRate"...},
    {..."TypeName": "NetAmount"...},
    {..."TypeName": "VatAmount"...}]
    },
    {
    ...,
    "TypeName": "BankGroup",
    "InvoiceDetailTypePredictions": <DetectionResponse>[
    {..."TypeName": "BankCode"...},
    {..."TypeName": "BankAccount"...},
    },
    {
    ...,
    "TypeName": "DueDateGroup",
    "InvoiceDetailTypePredictions": <DetectionResponse>[
    {..."TypeName": "DueDateDate"...},
    {..."TypeName": "DueDateDuration"...},
    },
    {
    ...,
    "TypeName": "DiscountGroup",
    "InvoiceDetailTypePredictions": <DetectionResponse>[
    {..."TypeName": "DiscountDate"...},
    {..."TypeName": "DiscountDuration"...},
    {..."TypeName": "DiscountPercent"...}]
    }],
    "LineItemTable": <LineItemTableResponse>,
    "Sender": <ContactResponse>,
    "Receiver": <ContactResponse>,
    "Contacts": <List of ContactResponse>,
    "IsQualityOk": <boolean>,
    "ResultPdf": <string>,
    "OcrResult": <string>,
    "DocumentText": <string>,
    "Confidence": <double>,
    "InvoiceState": <integer>
    }