| Field | Notes |
|---|---|
receipt | Base64 image. Recommended width ~800px. |
include | Optional: line_items, environmental_impact |
Enrichment
Receipt Scanner (OCR)
Scan photo receipts via API. Your EMS uploads, OpenCard extracts.
Your EMS can scan photo receipts directly — no webhook needed, synchronous API call.
Returns structured OCR data — merchant, amounts, dates, line items, optional CO₂ estimate.
Use case: employee uploads photo of paper receipt in your expense app → you call this API → get structured data back instantly. 📸

