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io.github.kodandy/jp-crypto-tax-rules

io.github.kodandy/jp-crypto-tax-rules · v0.1.0

Machine-readable Japanese crypto-asset tax rules for AI agents: rules-as-code with citations, x402.

MCPremoteno credentialsFinanceCrypto

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Last check

Reachable, 4 tools, protocol 2025-06-18 · checked 2026-10-17

Test & rating

A 95/100

What it does: 4 tools · 4 read, 0 write · Finance, Crypto, Documents & PDF

Test call list_tax_rules: worked (1,019 ms)

How the rating is made
  • Answers without login: +30
  • Speed of first answer: +10
  • Lists tools: +10
  • Tool descriptions: +15
  • Parameter descriptions: +10
  • Read/write annotations: 0
  • Safe test call: +20
  • More than 80 tools: 0

Tested 2026-10-17. Fixed rules, no AI model. Grade A needs a successful real call.

Install

Remote URL
https://jp-crypto-tax-rules-62ko7b2uwa-an.a.run.app/mcp

Tools

4 tools listed at last check
  • list_tax_rules FREE — returns structured rules. Catalog of machine-readable Japanese crypto-asset tax rules (rules-as-code): titles, status (current / enacted_pending), effective dates and statutory citations, filterable by category, taxpayer and tax_year. tax_year resolves the current-vs-2028-reform epoch per rul
  • get_tax_rule FREE — returns one full structured rule: statement, exceptions, status, effective dates, machine tags and statutory citations (sources), served verbatim from the versioned rules corpus. Not tax advice. 一般的な税制情報の提供であり、個別の税務判断は税理士にご相談ください。
  • get_tax_parameters FREE — returns structured tax parameters with per-value sources: progressive income tax brackets, resident tax and reconstruction surtax figures, the 2028-reform separate-taxation rate and loss-carryforward years, and the salary-filer filing threshold. Approximate reference values from public source
  • get_rule_pack Scenario-curated bundle of full structured rules (statements, citations, parameters) for one use case: defi_staking | overseas_exchange | corporate_holding | transition_2028. Paid via x402: each call costs 0.05 USDC. This tool returns the HTTP 402 payment challenge (spec-conformant accepts list) for

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