Idea checked
an invoice OCR API
There is demand and clear pain, but the market is already crowded with live OCR APIs and workflow tools.
Confidence: high — This search returned 80 signals across 9 sources, with 17 first-hand complaints, 8 stated wants, 1 unsolved Stack Exchange question, and 4 named open-source projects plus multiple active commercial APIs.
- hackernews 30
- github 20
- githubissues 5
- discourse 12
- intent 8
- stackexchange 1
- registries 3
- tavily 8
- devto 10
Interest over time From data
Hacker News stories mentioning invoice ocr extraction (topic read as “invoice OCR”), by year — 50 in total, currently rising.
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
This counts discussion on Hacker News, not global search demand. For developer tooling the two move together; for a local service business they do not.
Who is already building this From data
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chiupam/invoiceOCR is an active Python project with 51 stars and a last push on 2026-07-31. It is built on Tencent Cloud OCR for invoice recognition and management, including auto extraction, image processing, project classification, and export.
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datpham0412/invoice-processor has 39 stars and last pushed on 2025-07-03, so it is stale. It is a full-stack invoice processing and purchase-order matching system using Azure Form Recognizer OCR, Azure Blob Storage, React,.NET 6, and Docker Compose.
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Veryfi has several maintained SDKs for its OCR API: veryfi-nodejs has 32 stars and last pushed on 2026-04-09, veryfi-python has 30 stars and last pushed on 2026-05-14, and veryfi-go has 24 stars with a last push on 2026-07-24.
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Veryfi also has smaller client libraries that are still maintained, including veryfi-php with 15 stars and last push on 2025-11-26, veryfi-ruby with 8 stars and last push on 2026-07-03, veryfi-kotlin with 6 stars and last push on 2026-02-10, and veryfi-swift with 11 stars but a last push on 2025-08-11.
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There are also smaller open-source invoice OCR projects such as jyothish-ram/invoice_ocr_api with 3 stars and last push on 2024-09-10, timhaiz/invoice-manager with 3 stars and last push on 2025-09-18, and natgluons/AI-docs-analyzer-API with 3 stars and last push on 2025-05-26.
What people actually say From data
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"I have an inconsistent result when extracting a table from a Czech invoice." One user says the cloud API works, but local OCR fails on the same invoice.
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"I need reliable table extraction for Czech invoices." This is a direct complaint about accuracy on a real invoice format.
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"Some of the text could not be recognised and extracted." The user is describing OCR misses on invoice fields in OpenAI Vision.
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"I need to extract multiline data from mulitpage PDF to the populate excel sheet" A n8n user is struggling with multi-page invoice-like PDFs and spreadsheet extraction.
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"The whole idea for this came from my old job as a consultant... it felt like every other project involved scraping data from images—passports, receipts, driver's licenses, you name it." This HN founder voice shows document extraction is a repeated pain, not a one-off.
People asking to be sold to From data
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"I need reliable table extraction for Czech invoices." That is an explicit need for a better product, not just a complaint.
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"I would definitely like to" use something that avoids waiting for invoices to go unpaid and then filing later. The speaker is asking for a pre-filing invoice workflow.
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"Does anyone know of an open source tool that reliable extracts data from PDF invoices?" This is a direct request for a solution.
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"I’m looking at selling my own adverts and I have advertisers wanting to give me their money and copy. Does anyone know of a system to automate that stuff?" This is a broader automation want, but it is still first-hand willingness to adopt software for paperwork-heavy workflows.
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"We tried using GPT-4 Vision and various OCR APIs to automate our Accounts Payable." The founder says they already tried alternatives and still hit a hard edge case on the remaining 10%.
Where the opening is Model estimate
The model's read of the signals below — not something anyone measured.
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The signals do not show a clear gap in basic invoice OCR extraction. Existing products already cover invoice-to-JSON extraction, SDKs, table extraction, and workflow integrations.
- github chiupam/invoiceOCR 2025-03-21
- github datpham0412/invoice-processor 2025-05-22
- github veryfi/veryfi-nodejs 2021-06-30
- github veryfi/veryfi-python 2020-04-22
- github veryfi/veryfi-go 2021-05-20
- registries npm: n8n-nodes-deep-ocr 2026-07-12
- tavily Invoice OCR API – Extract Invoice Data & Line Items Automatically | Mindee
- tavily OCR API | Qvalia
- tavily Invoices OCR API | Veryfi
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The clearest opening is not raw OCR. It is reliability on messy, local, or language-specific invoices, plus better handling of tables, multi-page PDFs, and line items when the first pass fails.
- githubissues Table extraction succeeds on Cloud API but fails locally for one Czech invoice — need OCR bypass to Google OCR 2025-10-08
- discourse GPT 4 Vision Model misrepresentation of text from an Invoice (OCR Task) 2024-05-02
- hackernews Show HN: API that falls back to humans when AI is unsure 2026-01-12
- discourse Need to extract multiline data from mulitpage PDF to the populate excel sheet 2025-07-03
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There is also a practical gap around integrations and fallback logic: several threads mention OCR plus AI cleanup, Google Sheets, n8n, or human fallback, which suggests buyers want a workflow layer more than another OCR endpoint.
- githubissues feat: Integrate real-time invoice OCR using Google Gemini Vision API 2026-05-06
- discourse Need Help with Developing a System for Extracting Data from Hebrew Invoices Using Google Vision OCR and GPT 2023-04-03
- discourse How to Process PDF Files with OpenAI's Tools and APIs for Invoice Automation? 2025-01-15
- discourse N8n invoice system: I need help 2025-07-03
- discourse [Enterprise] Automate Invoice Extraction to Google Sheets (Google Drive → ParserData) 2026-01-19
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The data does not show a strong wedge for 'invoice OCR API' as a standalone category unless it beats established APIs on accuracy, or packages the extraction with validation, retries, and downstream accounting export.
- githubissues Automatic data extraction (OCR through a service API) from receipts and invoices in the expense submission flow 2023-07-11
- hackernews Show HN: API that falls back to humans when AI is unsure 2026-01-12
- tavily Invoices OCR API | Veryfi
- tavily Invoice OCR in 2026: From Document to Accounting Systems
How big the market might be Model estimate
The model's read of the signals below — not something anyone measured.
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This search found 4 named open-source projects, with 2 active, 1 slow, and 1 dead.
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The biggest maintained competitor in the signals is Veryfi's ecosystem, with SDKs ranging from 32 stars on veryfi-nodejs to 24 stars on veryfi-go and 30 stars on veryfi-python.
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The largest usage signal is invoiceshelf/invoiceshelf in Docker Hub with 603,882 pulls, which shows meaningful adjacent invoicing usage even though it is not pure OCR.
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There are 17 first-hand complaints, 8 stated wants, 1 unsolved Stack Exchange question with 327 views, and matching discussion threads in 4 communities: community.n8n.io, community.openai.com, discuss.python.org, and forum.djangoproject.com.
- stackexchange Azure Forms Recognizer Prebuilt-Invoice crashes during processing a file with "Name or service not known" 2022-12-22
- discourse Need to extract multiline data from mulitpage PDF to the populate excel sheet 2025-07-03
- discourse N8n invoice system: I need help 2025-07-03
- discourse Need Help Integrating Google Drive, Nanonets OCR, and Google Sheets for Invoice Automation 2025-03-09
- discourse [Enterprise] Automate Invoice Extraction to Google Sheets (Google Drive → ParserData) 2026-01-19
What could go wrong Model estimate
The model's read of the signals below — not something anyone measured.
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Competition risk is high: Veryfi is already maintained across multiple languages, Mindee appears in comparison and integration pages, and other OCR/document platforms are already targeting invoice extraction.
- github veryfi/veryfi-nodejs 2021-06-30
- github veryfi/veryfi-python 2020-04-22
- github veryfi/veryfi-go 2021-05-20
- github altafino/mindee-client 2023-05-08
- tavily Invoice OCR API – Extract Invoice Data & Line Items Automatically | Mindee
- tavily OCR API | Qvalia
- tavily Invoice OCR API: 10 Best Software Tools Compared 2026
- tavily Invoices OCR API | Veryfi
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Accuracy risk is the main product risk. The complaints are about missed text, failed local extraction, line items, tables, Hebrew invoices, Czech invoices, and multipart PDFs.
- githubissues Table extraction succeeds on Cloud API but fails locally for one Czech invoice — need OCR bypass to Google OCR 2025-10-08
- discourse GPT 4 Vision Model misrepresentation of text from an Invoice (OCR Task) 2024-05-02
- discourse Need Help with Developing a System for Extracting Data from Hebrew Invoices Using Google Vision OCR and GPT 2023-04-03
- discourse Need to extract multiline data from mulitpage PDF to the populate excel sheet 2025-07-03
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Workflow scope creep is another risk. Several users want OCR plus cleanup, validation, accounting export, Sheets sync, n8n integration, or human fallback, which can turn a simple API into a platform.
- githubissues feat: Integrate real-time invoice OCR using Google Gemini Vision API 2026-05-06
- hackernews Show HN: API that falls back to humans when AI is unsure 2026-01-12
- discourse How to Process PDF Files with OpenAI's Tools and APIs for Invoice Automation? 2025-01-15
- discourse N8n invoice system: I need help 2025-07-03
- discourse [Enterprise] Automate Invoice Extraction to Google Sheets (Google Drive → ParserData) 2026-01-19
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A generic API is easy to compare on price and accuracy, so without a strong niche such as language-specific invoices, tables, or compliance, the product will be hard to defend.
- hackernews Invoice OCR API for Logistics Expense Tracking Automation 2026-03-13
- hackernews Invoice OCR API for Automated GST Data Extraction in India 2026-03-12
- devto E-invoice compliance coming into force in 2026 2026-05-18
- tavily Invoices OCR API | Veryfi
- tavily Invoice OCR in 2026: From Document to Accounting Systems
What to do this week Model estimate
The model's read of the signals below — not something anyone measured.
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Build around one hard case first: table and line-item extraction for messy invoices in a specific language or format, since that is where users are already complaining.
- githubissues Table extraction succeeds on Cloud API but fails locally for one Czech invoice — need OCR bypass to Google OCR 2025-10-08
- discourse GPT 4 Vision Model misrepresentation of text from an Invoice (OCR Task) 2024-05-02
- discourse Need Help with Developing a System for Extracting Data from Hebrew Invoices Using Google Vision OCR and GPT 2023-04-03
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Ship a benchmark page with real invoices and show success rates for OCR, table extraction, and field extraction, because the market is already skeptical about 90% accuracy being enough.
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Include validation and fallback in the first version: schema checks, retry with a stronger model, and optional human review for low-confidence documents.
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Add one workflow integration early, such as n8n, Google Sheets, or accounting export, because the strongest signals are about automation after extraction, not extraction alone.
- discourse N8n invoice system: I need help 2025-07-03
- discourse Need Help Integrating Google Drive, Nanonets OCR, and Google Sheets for Invoice Automation 2025-03-09
- discourse [Enterprise] Automate Invoice Extraction to Google Sheets (Google Drive → ParserData) 2026-01-19
- tavily Invoice OCR in 2026: From Document to Accounting Systems
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If you cannot beat established APIs on a narrow niche, do not launch a broad invoice OCR API; the signals point to a crowded and already-validated category.
- github chiupam/invoiceOCR 2025-03-21
- github datpham0412/invoice-processor 2025-05-22
- github veryfi/veryfi-nodejs 2021-06-30
- github veryfi/veryfi-python 2020-04-22
- github veryfi/veryfi-go 2021-05-20
- tavily Invoice OCR API – Extract Invoice Data & Line Items Automatically | Mindee
- tavily Invoices OCR API | Veryfi
Competitor strength From data
Counted, not judged. Only projects that expose a hard number — stars, downloads, last commit — appear here, so they stop looking identical to each other. Products with no public metrics are discussed above instead of being given a row they cannot fill.
| Project | Stars | Downloads / mo | Activity |
|---|---|---|---|
| chiupam/invoiceOCR | 51 | — | Active 2026-07-31 |
| datpham0412/invoice-processor | 39 | — | Dead 2025-07-03 |
| veryfi/veryfi-nodejs | 32 | — | Slow 2026-04-09 |
| veryfi/veryfi-python | 30 | — | Active 2026-05-14 |
- 4 open source
- 2 active
- 1 dead
- 1 slow
- 17 first-hand complaints
- 8 stated wants
- 4 communities discussing it
Domain names From data
Checked live against the registry, built from the subject of the idea rather than the first words of the sentence. A literal check is a fact; a brandable suggestion would be noise.
- invoiceocr.com taken
- invoiceocr.io available
- invoice.com taken
- getinvoice.com taken
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