Extract invoice data to JSON with an LLM, with zero data retention

An agent turns invoice text into structured JSON and checks that the totals add up. The run keeps nothing afterwards.

Files
Zero data retention
Budget cap

Watch a real run

A real run on Oct 7, 2026, replayed. Model: openai/gpt-6-luna.

Succeededrun_409c7825c514f991b83554e667640f68$0.003496 of $0.03

0.00Queuedbudget $0.03 reserved
2.39MicroVMmicroVM ready
2.44MicroVMworker started · shell off · web off
4.78Fileread invoice.txt
13.73MicroVMmicroVM destroyed

13.74Succeeded2 model calls, 2,304 tokensRecorded output (English)

json

{
  "vendor": "Fjord Supplies AS",
  "invoice_number": "FS-2026-0417",
  "invoice_date": "2026-09-30",
  "due_date": "2026-10-30",
  "currency": "EUR",
  "line_items": [
    {
      "description": "Organic flour 25 kg",
      "quantity": 8,
      "unit_price": 31.5,
      "amount": 252
    },
    {
      "description": "Sunflower oil 10 l",
      "quantity": 5,
      "unit_price": 24,
      "amount": 120
    },
    {
      "description": "Delivery (pallet)",
      "quantity": 1,
      "unit_price": 45,
      "amount": 45
    }
  ],
  "subtotal": 417,
  "tax": 104.25,
  "total": 531.25,
  "checks": {
    "line_items_sum_matches_subtotal": true,
    "subtotal_plus_tax_matches_total": false,
    "notes": "Subtotal plus VAT is 521.25, which is 10.00 less than the printed total of 531.25."
  }
}

14.14Worker destroyed$0.003496 charged, $0.026504 released

Model $0.000378 · Web $0.00 · Compute $0.0028 · Surcharge $0.000318

Zero data retention was on for this run.

Run it yourself

Open the sample in the playground with the whole request filled in. It runs on your own account, within the budget shown, against the same read-only sample systems.

Budget for this sample: $0.03

Open in the playground Sign up to run it Sign in

How it works

Invoices carry names, addresses and bank details, so this run uses zero data retention. The agent returns vendor, number, dates, line items and totals as JSON, and flags the invoice when the arithmetic does not match. For scanned documents, run OCR first and pass the text.

What the agent can and cannot do

The permissions are part of the request. Anything not listed here is not available to the run.

Setting	Allowed
Connections	None
Web	Off
Shell	Off
Files	invoice.txt (read-only)
Zero data retention	On: no trace is recorded and the output is returned once
Budget	$0.03, a hard cap
Timeout	60 seconds

Credentials never enter the machine: a broker adds them to each call and enforces the methods above.

The code

This is the exact request the sample sends. Set EPHEMERAL_API_KEY to a member key of your organization.

curl -X POST $EPHEMERAL_URL/v1/runs \
  -H "Authorization: Bearer $EPHEMERAL_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d @request.json

Files in the request

Passed inline, so nothing is uploaded first. The agent sees each one as a read-only file.

invoice.txt

invoice.txt

INVOICE

Fjord Supplies AS
Storgata 12, 0155 Oslo, Norway
VAT no: NO 123 456 789 MVA

Invoice number: FS-2026-0417
Invoice date: 2026-09-30
Due date: 2026-10-30
Bill to: Example Bakery Ltd, 5 High Street, London

Description                      Qty   Unit price (EUR)   Amount (EUR)
Organic flour 25 kg               8         31.50            252.00
Sunflower oil 10 l                5         24.00            120.00
Delivery (pallet)                 1         45.00             45.00

Subtotal                                                     417.00
VAT 25%                                                      104.25
Total due                                                    531.25

Payment: bank transfer, IBAN NO93 8601 1117 947, reference FS-2026-0417

Full request body request.json

The same body, with the files inline.

request.json

{
  "prompt": "Extract the invoice in invoice.txt. Reply with one JSON object and nothing else: {\"vendor\": string, \"invoice_number\": string, \"invoice_date\": \"YYYY-MM-DD\", \"due_date\": \"YYYY-MM-DD\", \"currency\": string, \"line_items\": [{\"description\": string, \"quantity\": number, \"unit_price\": number, \"amount\": number}], \"subtotal\": number, \"tax\": number, \"total\": number, \"checks\": {\"line_items_sum_matches_subtotal\": boolean, \"subtotal_plus_tax_matches_total\": boolean, \"notes\": string}}. Copy numbers exactly as printed, then do the arithmetic for the checks. Use null for any field the document does not show.",
  "files": [
    {
      "path": "invoice.txt",
      "content": "INVOICE\n\nFjord Supplies AS\nStorgata 12, 0155 Oslo, Norway\nVAT no: NO 123 456 789 MVA\n\nInvoice number: FS-2026-0417\nInvoice date: 2026-09-30\nDue date: 2026-10-30\nBill to: Example Bakery Ltd, 5 High Street, London\n\nDescription                      Qty   Unit price (EUR)   Amount (EUR)\nOrganic flour 25 kg               8         31.50            252.00\nSunflower oil 10 l                5         24.00            120.00\nDelivery (pallet)                 1         45.00             45.00\n\nSubtotal                                                     417.00\nVAT 25%                                                      104.25\nTotal due                                                    531.25\n\nPayment: bank transfer, IBAN NO93 8601 1117 947, reference FS-2026-0417\n"
    }
  ],
  "shell": false,
  "timeout_seconds": 60,
  "max_cost_micros": 30000,
  "zero_data_retention": true
}