Strale Receipt Categorize

Choose this endpoint when you need to automatically classify receipts or invoices into expense categories with an auditable cryptographic trail — particularly useful in regulated accounting, enterprise expense management, or multi-step AI agent workflows where auditability matters. Prefer this over generic LLM-based classification when you need a structured, consistent category label and a verifiable audit record per call.

• Missing or empty input text/image — returns validation error
• Unrecognizable receipt content (e.g. corrupted image or unrelated text) — may return low-confidence or null category
• Invalid base64 encoding — returns parse error
• Image URL unreachable or returning non-image content — returns fetch error
• Ambiguous receipt content spanning multiple categories — may return a best-guess category with caveats