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Nanonets alternative: one API, accuracy in the contract.

Nanonets is a no-code workflow platform priced per block, with no accuracy guarantee. Invofox gives engineers one API — validated, structured JSON at 99.2% accuracy written into your SLA, and you only pay for the pages we get right.

Example IKEA invoice documentExample mortgage closing disclosure documentExample employee payslip documentExample media services invoice documentExample advertising services invoice document
Extracted Data · Invoice
1
2 ·· "document_type" "invoice"
3 ·· "extracted_at" "2025-09-29T10:00:00Z"
4 ·· "document"
5 ···· "invoice_number" "BORD_282_2025 / 0006806"
6 ···· "original_reference" "SIM_282_2025 / 1083480"
7 ···· "invoice_date" "2025-09-29"
8 ···· "purchase_date" "2025-09-17"
9 ···· "currency" "EUR"
10 ···· "status" "PAGADO"
11 ···· "seller"
12 ······ "name" "IKEA IBÉRICA S.A."
13 ······ "tax_id" "A28812618"
14 ······ "address" "Av. Matapiñonera Nº9, 28703 San Sebastián de los Reyes, Madrid"
15 ····
16 ···· "buyer"
17 ······ "name" "Windel SL"
18 ······ "tax_id" "B58372914"
19 ······ "address" "Av. de la Innovación 18, 41020 Sevilla, ES"
20 ····
21 ···· "line_items"
22 ······
23 ········ "article" "00567856"
24 ········ "description" "FÖRBÄTTRA PNL LAT 62X80 BLANCO MATE"
25 ········ "qty" 2
26 ········ "unit_price" 39
27 ········ "amount" 78
28 ········ "tax_base" 64.46
29 ········ "vat_pct" 21
30 ········ "vat_amount" 13.54
31 ······
32 ······
33 ········ "article" "10273189"
34 ········ "description" "VOXTORP FRNT C 60X10 BLANCO MATE 2UN"
35 ········ "qty" 1
36 ········ "unit_price" 25
37 ········ "amount" 25
38 ········ "tax_base" 20.66
39 ········ "vat_pct" 21
40 ········ "vat_amount" 6.48
41 ······
42 ······
43 ········ "article" "10301960"
44 ········ "description" "UTRUSTA RIEL HORNO GALVANIZADO"
45 ········ "qty" 1
46 ········ "unit_price" 12.5
47 ········ "amount" 12.5
48 ········ "tax_base" 10.33
49 ········ "vat_pct" 21
50 ········ "vat_amount" 2.17
51 ······
52 ······
53 ········ "article" "10417041"
54 ········ "description" "MA ACC EX 30 H"
55 ········ "qty" 1
56 ········ "unit_price" 79
57 ········ "amount" 79
58 ········ "tax_base" 65.29
59 ········ "vat_pct" 21
60 ········ "vat_amount" 13.71
61 ······
62 ······
63 ········ "article" "10418899"
64 ········ "description" "VOXTORP P 30X80 BLANCO MATE"
65 ········ "qty" 1
66 ········ "unit_price" 33
67 ········ "amount" 33
68 ········ "tax_base" 27.27
69 ········ "vat_pct" 21
70 ········ "vat_amount" 5.73
71 ······
72 ····
73 ··
74
1
2 ·· "documentType" "closing_disclosure"
3 ·· "closingDate" "2013-04-15"
4 ·· "settlementAgent" "Epsilon Title Co."
5 ·· "fileNumber" "12-3456"
6 ·· "property"
7 ···· "address" "456 Somewhere Ave, Anytown, ST 12345"
8 ···· "salePrice" 180000
9 ··
10 ·· "borrower"
11 ···· "name" "Michael Jones and Mary Stone"
12 ···· "address" "123 Anywhere Street, Anytown, ST 12345"
13 ··
14 ·· "seller"
15 ···· "name" "Steve Cole and Amy Doe"
16 ···· "address" "321 Somewhere Drive, Anytown, ST 12345"
17 ··
18 ·· "lender" "Ficus Bank"
19 ·· "loanTerms"
20 ···· "amount" 162000
21 ···· "interestRate" "3.875%"
22 ···· "term" "30 years"
23 ···· "monthlyPayment" 761.78
24 ···· "prepaymentPenalty" "Up to $3,240 (first 2 years)"
25 ··
26 ·· "projectedPayments"
27 ····
28 ······ "period" "Years 1-7"
29 ······ "principalInterest" 761.78
30 ······ "mortgageInsurance" 82.35
31 ······ "escrow" 206.13
32 ······ "total" 1050.26
33 ····
34 ····
35 ······ "period" "Years 8-30"
36 ······ "principalInterest" 761.78
37 ······ "mortgageInsurance" 0.00
38 ······ "escrow" 206.13
39 ······ "total" 967.91
40 ····
41 ··
42 ·· "closingCosts" 9712.10
43 ·· "cashToClose" 14147.26
44
1
2 ·· "documentType" "payslip"
3 ·· "periodYear" 2025
4 ·· "issueDate" "2026-05-14"
5 ·· "consultant" "415802"
6 ·· "employer"
7 ···· "mandant" "7184"
8 ···· "name" "Marquardt & Söhne GmbH"
9 ···· "address" "Königsallee 47, 40212 Düsseldorf"
10 ··
11 ·· "employee"
12 ···· "name" "Heinemann, Friedrich-Wilhelm"
13 ···· "persNr" "0327"
14 ···· "vkz" "K2P"
15 ··
16 ·· "totals"
17 ···· "ravRate" 21.87
18 ···· "kpvRate" 20.52
19 ···· "bgrs" 134134
20 ··
21
1
2 ·· "document_type" "invoice"
3 ·· "invoice_id" "1277139"
4 ·· "invoice_date" "2016-02-29"
5 ·· "vendor" "Cox Media West"
6 ·· "vendor_address" "P.O. Box 165355, Atlanta, GA 30348"
7 ·· "client" "Northwest Media Group"
8 ·· "client_id" "161827"
9 ·· "contract_id" "1219837"
10 ·· "estimate_id" "504"
11 ·· "po_number" "62246950"
12 ·· "bill_cycle" "02/16"
13 ·· "asst_exec" "NATIONAL_ARKANSAS"
14 ·· "payment_terms" "Net 30"
15 ·· "net_advertising_fee" 1663.00
16 ·· "total" 1663.00
17 ·· "currency" "USD"
18
1
2 ·· "documentType" "invoice"
3 ·· "invoiceNumber" "INV-784232"
4 ·· "orderNumber" "11450414"
5 ·· "invoiceDate" "2016-07-31"
6 ·· "period" "2016-06-27 / 2016-07-31"
7 ·· "billTo"
8 ···· "name" "Creative Communications (EDI)"
9 ···· "attention" "Susan Kines"
10 ···· "address" "P.O. Box 24189, Greenville, SC 29616"
11 ··
12 ·· "remitTo"
13 ···· "name" "Spectrum Reach"
14 ···· "address" "PO Box 952993, St Louis, MO 63195-2993"
15 ···· "phone" "844-634-2216"
16 ··
17 ·· "agency"
18 ···· "name" "Creative Communications (EDI)"
19 ···· "agencyNo" "SCA2000"
20 ···· "aeName" "Blackwell, Donald R"
21 ··
22 ·· "customer"
23 ···· "name" "SC Sen Rep Caucus Dist 2 Larry Martin"
24 ···· "customerNo" "54851"
25 ···· "contractNo" "92756"
26 ··
27 ·· "lineItems"
28 ····
29 ······ "lineNo" 1
30 ······ "date" "2016-06-27"
31 ······ "timePeriod" "UD:05:00-09:00"
32 ······ "network" "CNN"
33 ······ "spotsOrdered" 4
34 ······ "spotsAired" 4
35 ······ "spotRate" 9.00
36 ······ "grossTotal" 36.00
37 ····
38 ····
39 ······ "lineNo" 2
40 ······ "date" "2016-06-27"
41 ······ "timePeriod" "UD:19:00-24:00"
42 ······ "network" "CNN"
43 ······ "spotsOrdered" 3
44 ······ "spotsAired" 3
45 ······ "spotRate" 11.00
46 ······ "grossTotal" 33.00
47 ····
48 ··
49 ·· "totalSpots" "7"
50 ·· "totalAmount" "69.00"
51

Invofox as a Nanonets alternative

Nanonets gives you a flexible builder and plenty of knobs to turn. Teams look for a Nanonets alternative when they would rather not operate the model lifecycle themselves — the training runs, the retraining, the workflow upkeep that comes with it. Invofox is the managed version of the same outcome: define your schema, send documents, receive validated JSON, with no models of your own to keep alive. The accuracy target is contractual instead of something you measure and hope for.

When Invofox wins

  • You do not want to own training and retraining — schema in, validated JSON out, nothing to maintain.
  • You want predictable billing per page processed, not per block or per model kept running.
  • You want accuracy in writing, with the pages we get wrong left off the invoice.
// SIDE BY SIDE

Everything Nanonets does — without the workflow builder or the per-block bill.

Nanonets is a capable platform if you want a no-code studio to build document workflows. Invofox is the developer-first API for teams that want validated, structured data from one endpoint — no blocks to wire up, no per-block math, and accuracy in the contract.

Capability Invofox Nanonets
Built for
Developers — one API, structured JSON in, clean JSON out
Builders who want a no-code workflow studio plus an API
Setup
No training, no workflow to build — send a document, get schema-mapped JSON
Configure a block-based workflow; pre-trained or custom-trained models
Pricing
Pay only for the pages we extract correctly — flat and predictable, accuracy in the contract
Per-block credits — every step bills separately and each document runs a different number of blocks, so the real cost per document is hard to estimate; volume pricing is quote-based
Accuracy commitment
99.2% accuracy written into your SLA, validated against ground truth
Strong benchmark accuracy, but no pay-for-accuracy guarantee
Built-in validation
Cross-field business rules (totals, tax, dates) before delivery
Validation built as blocks in the workflow you configure
Classifier & splitter
Auto-detects document types and splits multi-doc files in one call
Classification and splitting as separate workflow blocks
Async webhooks
Cloud-agnostic async API with standard HTTP webhooks
REST API with webhook support for async jobs
Zero-retention mode
Process, deliver, hard-delete — no copies, backups, or logs
Documents retained for review and workflow processing
On-prem / private cloud
Same API, deployed inside your perimeter
Docker / VPC / on-prem on the Enterprise plan
Compliance
SOC 2 Type II, ISO 27001, GDPR
SOC 2 Type II, ISO 27001, GDPR

Why teams switch to Invofox.

  • 1 endpoint

    One API, no workflow to build.

    Send a document, get clean, schema-mapped JSON. No no-code studio to configure, no blocks to wire up — Invofox drops straight into your codebase.

  • +99% accuracy guaranteed

    Accuracy in the contract.

    Per-field accuracy targets are part of your SLA, validated against ground truth. If a page isn't extracted perfectly, you don't pay for it.

  • $0 if we make a mistake

    Pay only for correct data.

    Every page where a mistake is reported through our API is credited back — no per-block math to forecast, no paying again to retry.

Common questions about switching from Nanonets.

~/invofox / faq.json
best-alternative.json
1
2 ··"question" "What is the best alternative to Nanonets?"
3
4 ··"answer" "Invofox is the strongest Nanonets alternative for teams that want the result without operating the model lifecycle — you define a schema and receive validated JSON from one API, with per-field accuracy in the contract and no training or retraining runs to maintain."
5
Alternatives best-alternative.json
main 0 errors 0 warnings UTF-8 LF JSON

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