ZBS Index What actually exists in applied AI, with the source next to it

mcp server

jp-crypto-tax-rules

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

Description as published by the maintainer. Source

  • version 0.1.0
  • active

active — Registry entry last updated 2026-06-14.

What this server can do

4 functions, named and described by the server itself. Parameter names are shown because they say more about what a function does than its name usually does.

get_rule_pack(scenario)
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。 Required: scenario.
get_tax_parameters(tax_year)
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_rule(rule_id)
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。 Required: rule_id.
list_tax_rules(category, tax_year, taxpayer)
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。

Last successful function declaration observed on . Source: https://jp-crypto-tax-rules-62ko7b2uwa-an.a.run.app/mcp. We list what the server declared; we do not call any of these functions.

Endpoint status observed on . Source: https://jp-crypto-tax-rules-62ko7b2uwa-an.a.run.app/mcp.

Signals

These are separate measurements of different things. They are deliberately not combined into one score, because a popularity number that mixes website traffic with saves and stars cannot be checked or acted on.

Signal Value What it measures Window Observed Source
Latest published version 0.1.0 Latest version string the maintainer published to the registry. as of fetch Model Context Protocol
Registry record last updated 2026-06-14 When the registry record was last updated by its maintainer. point in time Model Context Protocol
First listed in the MCP Registry 2026-06-14 Date this server was first published to the official MCP Registry. Not a usage or quality measure. point in time Model Context Protocol
mcp tools declared 4 tools Number of functions the server itself declared when asked to list them. This is what the server offers an agent, not a measure of how well any of them work. as of probe jp-crypto-tax-rules-62ko7b2uwa-an.a.run.app
mcp endpoint status ok The server listed 4 functions when asked. as of probe jp-crypto-tax-rules-62ko7b2uwa-an.a.run.app

Where to get it

Also from kodandy

This record as data

Every field on this page, with its source and observation date, is in the catalog JSON. Fetch the whole kind at once instead of parsing this HTML.

GET /api/v1/entries/mcp_server.json

Sources

  1. Tools declared by the MCP server at https://jp-crypto-tax-rules-62ko7b2uwa-an.a.run.app/mcp — jp-crypto-tax-rules-62ko7b2uwa-an.a.run.app, observed , trust tier 1.
  2. Official MCP Registry — Model Context Protocol, observed , trust tier 1.