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

by kodandy · remote · no sign-in to list tools · v0.1.0 · published by GitHub user kodandy

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

Read only
CompareRegistry entry

4 tools: 4 only read.

Scanned Oct 21, 2026

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http jp-crypto-tax-rules https://jp-crypto-tax-rules-62ko7b2uwa-an.a.run.app/mcp

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

4 tools

Only reads 4Claude Code: allow
  • get_rule_packScenario-curated bundle of full structured rules (statements, citations, parameters) for one use case: defi_staking | overseas_exchange | corporate_holding | transition_2028.No findings

    Why it is in this group

    • The name "get_rule_pack" says "get": a word for reading.
    Description, as the server wrote it
    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 the pack resource. The 402 is real: settle it against /v1/packs/{scenario} with an X-PAYMENT header and the 200 response delivers the full pack body ({status:"settled", settlement, pack}) — payment buys the actual structured rules, not a receipt. 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_parametersFREE — returns structured tax parameters with per-value sources: progressive income tax brackets, resident tax and reconstruction surtax figures, the 2028-reform separate-taxation …No findings

    Why it is in this group

    • The name "get_tax_parameters" says "get": a word for reading.
    Description, as the server wrote it
    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 sources; 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_ruleFREE — returns one full structured rule: statement, exceptions, status, effective dates, machine tags and statutory citations (sources), served verbatim from the versioned rules co…No findings

    Why it is in this group

    • The name "get_tax_rule" says "get": a word for reading.
    Description, as the server wrote it
    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。
  • list_tax_rulesFREE — returns structured rules.No findings

    Why it is in this group

    • The name "list_tax_rules" says "list": a word for reading.
    Description, as the server wrote it
    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 rule (applies / pending_enforcement). Sources are public only (NTA FAQ, e-Gov statutes, MOF documents); 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。

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 0.1.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http jp-crypto-tax-rules https://jp-crypto-tax-rules-62ko7b2uwa-an.a.run.app/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__jp-crypto-tax-rules__list_tax_rules",
      "mcp__jp-crypto-tax-rules__get_tax_rule",
      "mcp__jp-crypto-tax-rules__get_tax_parameters",
      "mcp__jp-crypto-tax-rules__get_rule_pack"
    ],
    "ask": [],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as jp-crypto-tax-rules. Review it before you use it.