queria
Enables MCP clients to query Japanese open data (e-Stat, 国土数値情報, EDINET, 気象庁 etc.) from Queria using SQL.
README
queria
Query Japanese open data on Queria from the terminal, Python, and MCP.
Queria が公開する日本のオープンデータ(e-Stat、国土数値情報、EDINET、気象庁ほか)を、ターミナル・Python・MCP から read-only で探索するクライアントです。データは DuckLake 形式で公開されており、計算はすべて手元の DuckDB で行われます。
インストール
uvx queria list # インストール不要で実行
pip install queria # または通常インストール
Python 3.10+ が必要です。
使い方
queria list # データセット一覧
queria search 人口 # キーワード検索
queria schema e_stat # テーブル一覧
queria columns e_stat mart_population # カラム一覧
queria sql "SELECT * FROM zipcode.main.zipcodes LIMIT 10"
queria sql "SELECT * FROM zipcode.main.zipcodes" --out zipcodes.parquet
テーブルは <dataset>.<schema>.<table> で参照します。参照したデータセットは自動的に ATTACH されます。
Python API
import queria
with queria.connect() as conn:
conn.sql("SELECT * FROM catalog.main.mart_datasets").show()
MCP サーバー
Claude Code / Claude Desktop / Cursor などの MCP クライアントから使えます:
{
"mcpServers": {
"queria": {
"command": "uvx",
"args": ["--from", "queria[mcp]", "queria", "mcp"]
}
}
}
ドキュメント
https://docs.queria.io/
License
MIT
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