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mart402 OCR – Dual-Engine Consensus Image-to-Text with Hallucination Guard
x402
mart402 OCR – Dual-Engine Consensus Image-to-Text with Hallucination Guard is a paid API for AI agents from mart402.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).
Converts images to text using dual-engine consensus OCR with calibrated confidence scoring and per-segment hallucination detection, with strong Japanese-language support.
Price / call$0.05
Success—
StatusUnknown
How this service works
OCR image to text with hallucination guard: dual-engine consensus, calibrated confidence, per-segment corroboration. Japanese-strong (latin too). Flat 0.005/image.
Output
Returns a JSON object containing: the full extracted text, an ocr_quality object with calibrated confidence scores and hallucination flags per segment, and a dual-engine consensus verdict indicating agreement or divergence between the two OCR engines.
Example use cases
Japanese receipt digitization pipeline
“I have a photo of a Japanese restaurant receipt — please extract all the text from it and give me a confidence score, flagging any segments you're not sure about.”
Scanned contract text extraction
“I've got a scanned page from a legal contract as a PNG. Can you pull out all the text with hallucination flags so I know which parts to double-check manually?”
Form field extraction with quality check
“Extract the text from this image of a filled-in paper form and tell me the OCR quality score and any fields where the dual-engine consensus disagreed.”
Technical details
Endpoint
POSThttps://mart402.com/v1/ocrWhen to prefer
Choose this endpoint when OCR accuracy is critical and you need more than raw text — especially when hallucination detection, calibrated confidence per segment, and dual-engine consensus are required for downstream trust decisions. Particularly strong for Japanese-language documents. Prefer over generic OCR when the cost of an OCR error is high (e.g., invoices, legal documents, data entry pipelines).
Side effects
- Image URL unreachable or returns non-image content — returns error with no text output
- Low-resolution or heavily degraded image — returns text with low confidence scores and multiple hallucination flags
- Unsupported image format — returns format error
- Ambiguous or stylized fonts with very low consensus — returns partial text with high hallucination flag rate
- Payment not included or insufficient — returns 402 Payment Required
Tags
x402
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