@pipeworx/estat-japan

Connect: https://gateway.pipeworx.io/estat-japan/mcp · Install: one-click buttons

Tools: 4

e-Stat (Japan) MCP — Japanese government statistics aggregator (~5000 tables across population, economy, labor, trade, prices, agriculture, environment). Free with an app ID.

Tools

• search_stats(query, limit?, start_position?, lang?) — find stats tables
• get_metadata(stats_data_id, lang?) — dimensions + code lists for a table
• get_data(stats_data_id, limit?, start_position?, lang?, filters?) — observations
• list_data_catalog(query?, limit?, start_position?, lang?) — browse catalog

Auth

• Platform key: gateway env PLATFORM_ESTAT_KEY (an appId issued by e-stat.go.jp)
• BYO: ?_apiKey=<appId> after registering at https://www.e-stat.go.jp/api/

Data source

https://api.e-stat.go.jp/rest/3.0/app/json/ — appId as query param.

Default language is Japanese (J); pass lang: "E" for English where available.

Tools

• search_stats — Search e-Stat statistical tables. Returns IDs and names for tables matching the query. Use the IDs with get_data / get_metadata.
• get_metadata — Fetch the dimension definitions and code lists for a specific e-Stat statistics table (statsDataId). Returns category codes needed to construct filters for get_data. Requires _apiKey.
• get_data — Fetch observations from a stats table. Optionally filter by dimension codes.
• list_data_catalog — Browse the e-Stat high-level data catalog (dataset/table groupings) with optional free-text filter. Returns catalog entries with dataset IDs, names, and organization metadata. Requires _apiKey.