Japan Data Mcp
Let your agent query Japanese government statistics, corporate registry, and real estate library APIs while you validate a Japan-focused product or content idea.
Overview
Japan Data MCP is an MCP server for the Idea phase that lets agents query integrated Japanese public statistics, corporate registry, and real estate APIs.
What is this MCP server?
- Three integrated public APIs: e-Stat statistics, corporate number Web-API, real estate information library
- Coverage described for roughly 1,700 municipalities nationwide
- PyPI package `japan-data-mcp` with `uvx` runtime hint and stdio MCP
- Required `ESTAT_APP_ID`; optional `CORP_APP_ID` and `REALESTATE_API_KEY` for extended sources
- 3 integrated APIs: e-Stat, corporate number Web-API, real estate information library
- Approximately 1,700 municipalities supported (server description)
- PyPI package version 0.1.1, stdio transport, `ESTAT_APP_ID` required
What problem does it solve?
Validating a Japan-specific idea means juggling e-Stat, houjin-bangou, and REINFO portals by hand while your agent cannot reach those datasets natively.
Who is it for?
Solo builders researching Japanese demographics, companies, or property markets who already use Claude Code or similar MCP clients.
Skip if: Builders with no Japan focus, or teams that need a governed warehouse, SLAs, and ETL outside the agent session.
What do I get? / Deliverables
After registering the PyPI stdio server with an e-Stat app ID (and optional corp/real-estate keys), your agent can fetch official Japanese data during research chats.
- Single MCP entry point to three Japanese public API families
- Agent-queryable stats and registry context for ~1,700 municipality coverage (per server description)
- Documented env-var setup for tiered API access
Recommended MCP Servers
Journey fit
Public statistics and registry lookups belong in idea-phase research before you commit to a localized SaaS, report, or dataset product. The server unifies e-Stat, corporate number, and REINFO APIs so research subphase work stays inside the agent instead of manual portal hopping.
How it compares
Government open-data MCP bridge—not a hosted analytics product or generic web-scrape skill.
Common Questions / FAQ
Who is Japan Data MCP for?
Developers and founders using AI agents who need authoritative Japanese public data from e-Stat and related APIs during early research.
When should I use Japan Data MCP?
Use it in the idea and research subphase when you are sizing markets, checking corporate entities, or grounding hypotheses with official statistics before you build.
How do I add Japan Data MCP to my agent?
Obtain a free e-Stat application ID, optionally apply for corporate and real-estate API keys, set `ESTAT_APP_ID` (and optional vars), and add the PyPI stdio server `japan-data-mcp` via uvx to your MCP configuration.