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Beyond building your own, Arlet provides an official catalog of ready-to-use MCP servers. For many of them Arlet obtains and manages the API key, so you just flip a switch to start using them. Only the servers whose provider requires a contract or a per-user registration need your own API key; those cards show API key required and cannot be switched on until you set the key.

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What’s in the catalog

  • Government (Japan): e-Stat (official statistics), e-Gov (law search and data portal), EDINET (corporate filings), gBizINFO, corporate number search, JMA (weather, warnings, earthquakes), WBGT heat index and heatstroke alerts, J-SHIS (earthquake hazard), PLATEAU (3D city models), Real Estate Information Library, MLIT Data Platform, public procurement portal, Mirasapo Plus
  • Government (United States, EU, South Korea, Taiwan): United States (FRED, BEA, BLS, Census, SEC EDGAR, Federal Register, eCFR, GovInfo, Congress.gov, USPTO, USASpending, SAM.gov, openFDA), EU (EUR-Lex, Eurostat, TED), Korea (OpenDART), Taiwan (GCIS, TWSE)
  • International organisations: IMF, OECD, World Bank, GLEIF (LEI)
  • Transport: Japanese bus timetables (GTFS), Japanese road traffic volumes, public transport data (ODPT), Transport for London (TfL)
  • Healthcare: research tools for health, nutrition, psychology, sports science, and strength training
  • Finance: J-Quants (equity data)
  • Simulation: population simulator (Japan)
  • LLM: Ask Claude, Ask GPT, Ask Gemini
  • Security: MCP Security Audit (checks the third-party MCP servers connected to your AI client — see Audit your MCP servers)
For the current set of tools, check the Arlet tools list in the product.

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How to use

  1. Open Arlet tools from the sidebar on the Dashboard
  2. Turn on the switch for the servers you want to use. For servers that need a key, open the card and set the key first
  3. That’s it — the server’s tools become available from any AI client connected to Arlet MCP