MCP server · JPX (Japan Exchange Group)
j-quants-doc-mcp
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Documentation
Documentation link · transport stdio
Tools
health_check— Simple health check confirming the server is running.search_endpoints— Search J-Quants API endpoints by keyword and optional category (auth, listed, prices, fins, etc.), for API version v1 or v2.describe_endpoint— Return endpoint detail - name, path, method, parameters, response fields, auth requirement, and available plans (e.g. eq-master, eq-bars-daily for V2; daily_quotes for V1).get_pattern— Return implementation pattern guidance with sample code (auth flow, pagination, rate-limit handling, bulk download, financial analysis).fetch_spec_page— Fetch a specification page by path, including reference-data pages such as holiday divisions and market segment codes.migrate_v1_to_v2— Provide the V1-to-V2 migration guide - endpoint correspondence table and change notes - for a given V1 endpoint or the whole guide.get_info— Answer questions outside the API specification - plan types, pricing, contracts, payment, data ranges per plan, upgrades and cancellation.
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