mart402.com publishes 4 machine-payable endpoints over the x402 protocol, priced from $0.005 to $0.05 per call. Each was probed directly; the response code below is what it returned.
| Endpoint | Method | Price | Probe |
|---|---|---|---|
| /v1/enrich | POST | $0.03 | 200 |
| /v1/extract | POST | $0.005 | 200 |
| /v1/ocr | POST | $0.05 | 200 |
| /v1/verify | POST | $0.015 | 200 |
Company enrichment: name, domain or URL to verified company profile from primary sources + GLEIF LEI registry. Per-field evidence and confidence, honest nulls. Flat 0.015/company.
Web extraction for AI agents: URL to clean Markdown + metadata, automatic JS rendering, robots.txt respected. No API key.
OCR image to text with hallucination guard: dual-engine consensus, calibrated confidence, per-segment corroboration. Japanese-strong (latin too). Flat 0.005/image.
Invoice field verification for AI agents: arithmetic consistency of invoice fields, line-item totals, and accounting JSON. 0.001/call.