generated: '2026-07-22'
method: searched
source: https://github.com/J-Quants/j-quants-doc-mcp
status: published
docs: https://jpx-jquants.com/en/spec/mcp-server
server:
  name: j-quants-doc-mcp
  transport: stdio
  distribution: source-install
  install:
  - uv tool install git+https://github.com/J-Quants/j-quants-doc-mcp.git
  - pip install git+https://github.com/J-Quants/j-quants-doc-mcp.git
  command: uvx
  args:
  - j-quants-doc-mcp
  language: python
  requires: Python >= 3.10
  repository: https://github.com/J-Quants/j-quants-doc-mcp
notes: 'Official documentation MCP server from Japan Exchange Group''s J-Quants team. It serves the J-Quants
  API specification to AI clients (Claude Desktop, Cursor): endpoint search and detail, implementation
  patterns with runnable sample code, V1-to-V2 migration guidance, and plan/pricing FAQ answers. It is
  a docs/companion server - it does not proxy live market-data calls; generated code calls https://api.jquants.com/v2
  with the user''s x-api-key.'
tools:
- name: health_check
  description: Simple health check confirming the server is running.
- name: search_endpoints
  description: Search J-Quants API endpoints by keyword and optional category (auth, listed, prices, fins,
    etc.), for API version v1 or v2.
- name: describe_endpoint
  description: 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).
- name: get_pattern
  description: Return implementation pattern guidance with sample code (auth flow, pagination, rate-limit
    handling, bulk download, financial analysis).
- name: fetch_spec_page
  description: Fetch a specification page by path, including reference-data pages such as holiday divisions
    and market segment codes.
- name: migrate_v1_to_v2
  description: Provide the V1-to-V2 migration guide - endpoint correspondence table and change notes -
    for a given V1 endpoint or the whole guide.
- name: get_info
  description: Answer questions outside the API specification - plan types, pricing, contracts, payment,
    data ranges per plan, upgrades and cancellation.
deployment:
  mode: local-stdio
  verified: searched
  tools: 7
  checked: '2026-08-12'
  source: catalog MCP census