# Mart402

> Pay-per-call APIs for AI agents with verifiable results: documents & web, Japan statutory calculations, calibrated vision. Pay per call with x402 (USDC on Base) - no account, no API key.

- **Domain**: `mart402.com`
- **Provider**: Mart402 (https://mart402.com)
- **A2A protocol version**: 0.3.0
- **Kind**: paid_api
- **Category**: data
- **Live-responds (last probe)**: None
- **Signed card**: False
- **Streaming**: False
- **Quality score**: 90%
- **Payment protocol**: x402 · network `eip155:8453`
- **Wallet**: `0xe3244a21d0d68bfa78b7cad8c3b8777adfbb3188`

## Skills
- **extract** — URL -> main-content Markdown + metadata. JS-heavy sites are auto-rendered. POST /v1/extract. From $0.005 per call.
- **parse** — PDF -> structured Markdown. One step: POST /v1/parse {url} (the 402 quotes the exact price for that PDF), or two-step: free POST /v1/parse/quote {url} then POST
- **ocr** — Single image -> text with hallucination-guarded quality signals: dual-engine consensus (VLM + traditional OCR), calibrated confidence, per-segment corroboration
- **enrich** — Company name/domain/URL -> verified company profile from primary sources: official-site extraction + free authoritative registries (GLEIF LEI, Japan NTA corpora
- **verify** — Invoice field verification: tax-rate consistency, line-item totals, JP invoice registration number (T+13 digits) check-digit + corporate-number existence observ
- **structured** — Fills YOUR JSON schema from any URL. Hybrid LLM extraction + source-text canonicalization. Output contains only your schema keys; missing values are null. Choos
- **jp-company** — Japanese company site -> standard profile: name, address, representative, founded, capital, business lines, employees, listing status, contact. A JP-tuned prese
- **document-pipeline** — One call: PDF -> parse (hallucination-guarded OCR) -> invoice fields -> arithmetic verification -> optional issuer enrichment. Inputs validated before settlemen
- **pdf-merge** — Merge 2-10 PDFs into one, in order. Deterministic. POST /v1/pdf-merge. From $0.003 per call.
- **pdf-pages** — Extract pages by range into a new PDF. Deterministic. POST /v1/pdf-pages. From $0.002 per call.
- **pdf-info** — PDF facts before paying for parsing: pages, metadata, per-page text volume, scanned-or-not estimate. POST /v1/pdf-info. From $0.001 per call.
- **meal-vision** — Meal photo -> itemized nutrition JSON: dishes, portion estimates, calories, protein/fat/carb with per-item confidence. v1.3: reference-object scale calibration 
- **portrait-analysis** — 1-3 portraits -> personal color analysis in three published layers: MEASURED pixel colorimetry (CIELAB, ITA angle from cheek samples) cross-checked against visi
- **style-profile** — Integrated styling verdict in one call: seasonal color (measured colorimetry consensus + cross-photo checks), face-impression zone (published 2-axis geometry ru
- **style-report** — The style-profile analysis rendered as a finished, client-ready PDF report (English or Japanese): cover, verdict table, palette swatches with color names, style
- **report-pack** — Volume pricing for style-report: one payment of 19.90 returns 10 single-use credit codes (1.99/unit vs 2.99 single). Codes never expire and work for en and ja r
- **jp-payroll-net** — Japan annual gross salary -> net take-home: social insurance (official Kyokai-Kenpo FY2026 grade table, all 47 prefectures), income tax (exact NTA Beppyo-5 4000
- **jp-bonus-net** — Japan bonus net pay: premiums (1000-yen floor, annual 5.73M health cap, per-payment 1.5M pension cap) + withholding tax from the official bonus rate table (rate
- **jp-social-insurance** — Japan monthly social insurance premiums: official grade table (50 grades, official boundaries - not the midpoint approximation), health/long-term-care/pension/e
- **jp-dependent-threshold** — Japan income walls: tax wall derived from basic+salary deductions (not hardcoded), social-insurance walls time-versioned (wage requirement abolished 2026-10-01)
- **jp-consumption-tax** — Japan consumption tax: invoice totals with one rounding per rate, qualified invoice (T+13) validation, simplified taxation by business class, 20-percent special
- **jp-business-days** — Japan holidays (1980-2099, equinox + substitute + kokumin-no-kyujitsu), business-day arithmetic, statutory tax deadlines with holiday shift, wareki conversion. 
- **jp-overtime-wage** — Japan overtime premiums (Art.37: 25/35/50 percent + late-night, official kihatsu-150 rounding) and Article-36 special-clause limit check. POST /v1/jp-overtime-w
- **jp-retirement-tax** — Japan retirement income tax: deduction by service years (40/70 per year, min 800k), half-taxation with short-term/officer exceptions, exact 1-yen withholding fl
- **jp-mortgage** — Mortgage: level-payment/level-principal schedules, total interest, prepayment effect (term or payment reduction). Pure deterministic annuity math. POST /v1/jp-m
- **jp-payslip-audit** — Audit a Japanese payslip: recompute health/care/pension/employment premiums and withholding tax from official tables, diff against actuals with 5-way verdicts. 
- **jp-crypto-tax** — Japan crypto-asset realized income under NTA rules: total-average (default for individuals) or moving-average, sell/spend/exchange as disposals, fees deductible
- **jp-payroll-suite** — Four Japan payroll calculations in one call: net salary + social insurance detail + income-wall analysis (+bonus withholding when previous-month salary given). 

## URLs
- Agent card: https://mart402.com/.well-known/agent.json
- Page (HTML): https://agenstry.com/agents/mart402.com
- Documentation: https://mart402.com/agents.md