EDINET MCP server for Claude and ChatGPT
Kabuken is an EDINET MCP server. It lets Claude, ChatGPT, Cursor and other MCP clients read the financial statements, business segments and major shareholders of Japanese listed companies, taken from the filings that companies submit to EDINET. Each figure comes with its source filing and reporting period, so you can check where a number came from.
Source: EDINET (Financial Services Agency). Kabuken does not provide stock prices or investment advice.
Endpoint
Section titled “Endpoint”The MCP endpoint is the same for every client:
https://kabuken.intellics.ai/mcpSet up your AI assistant
Section titled “Set up your AI assistant”- Claude (web, desktop app, phone): add Kabuken from the Claude connector directory, or add the endpoint as a custom connector and sign in with OAuth.
- ChatGPT (desktop app and Codex): upload the Kabuken plugin file.
- Claude Code: run
claude mcp add --transport http kabuken https://kabuken.intellics.ai/mcp. - Cursor and other MCP clients: add the endpoint as a remote HTTP MCP server. Clients that cannot open a sign-in window can send an API key as a Bearer token instead.
Step-by-step instructions and troubleshooting are in Connect the EDINET MCP server to Claude and ChatGPT. For keys and sign-in, see Authentication.
Kabuken exposes these MCP tools. Parameters and examples are in the Tools Reference.
| Tool | What it does |
|---|---|
search_companies | Search companies by name |
get_company | Get company details by identifier |
list_industries | List industry categories |
list_documents | List EDINET filings for a company |
get_financial_facts | Retrieve XBRL facts from a filing |
get_calculation_tree | Show how a total is built from its components |
get_segment_breakdown | Show business segment and geographic breakdowns |
get_company_financials | Retrieve multi-period income statement, balance sheet and cash flow data |
get_major_shareholders | Get major shareholder reports (large shareholding reports) |
compare_companies | Compare up to 5 companies on key metrics |
screen_companies | Filter companies by financial metric thresholds |
get_industry_overview | Get sector-level aggregated data |
get_risk_context | Get BOJ rate sensitivity and METI export-control classification |
get_document_summary | Get an AI-generated summary of a filing |
analyze_document | Get an AI-generated analysis of a filing |
get_account_quota | Check your remaining daily requests |
How each figure is reported
Section titled “How each figure is reported”Each headline figure comes with its period, the XBRL context it was read from and its consolidation basis. When a figure has no value, an omission reason says why, and derived figures list their components. Banks, insurers and securities firms are handled by statement format. See How Kabuken reports each figure.
Example prompts
Section titled “Example prompts”What were Toyota’s sales last year, and which filing does the figure come from?
Show Honda’s revenue by business segment.
Who are the major shareholders of MUFG?
Show how Sony’s operating profit is built up from its components.
Compare Toyota and Honda on revenue and operating income.
What is the EDINET MCP server?
Section titled “What is the EDINET MCP server?”Kabuken’s EDINET MCP server is a Model Context Protocol endpoint. It lets an AI assistant look up financial statements, segments and major shareholders of Japanese listed companies, taken from EDINET filings, and shows the source filing for each figure.
Where does the data come from, and what is the licence?
Section titled “Where does the data come from, and what is the licence?”The data comes from filings on EDINET, the disclosure system of Japan’s Financial Services Agency. EDINET content is provided under the Public Data License (PDL1.0). Kabuken edits and processes it, so the figures are not the Financial Services Agency’s original data. Source: EDINET (Financial Services Agency). See About the Data for the full attribution.
Does Kabuken provide stock prices?
Section titled “Does Kabuken provide stock prices?”No. Kabuken covers what companies report in their filings. It does not provide stock prices.
Is this investment advice?
Section titled “Is this investment advice?”No. Kabuken returns data from filings. It does not give investment advice or recommendations.
How do I sign in?
Section titled “How do I sign in?”Sign in to Kabuken with Google when your client opens the OAuth window, or create an API key on the Account page of the Kabuken app and send it as a Bearer token. See Authentication.
Which languages does it support?
Section titled “Which languages does it support?”You can ask in Japanese or English. Labels are available in Japanese and English where the filing provides them.
Which AI assistants can use it?
Section titled “Which AI assistants can use it?”Claude, ChatGPT, Cursor, Claude Code and other clients that support remote MCP servers. See Connect the EDINET MCP server to Claude and ChatGPT.