compare_financials
Compare financial data across multiple Korean companies (다중 회사 재무 비교). Shows revenue, operating profit, and net income side by side.
LABSCO SUMMARY
Summary and full statements as separate tools is the right split, because pulling every account line for a question about revenue is how you fill a context window with nothing.
Korean financial statements have a lot of line items, and most questions need four of them. Offering the summary as its own call means the cheap question stays cheap and the detailed one is still available when the answer genuinely depends on a specific account. compare_financials doing the alignment across companies is the other real saving — the tedious part of comparison is not fetching, it is matching accounts that are named slightly differently in each filing. Read-only, official source, and the key is free.
What it is
A client for DART, the Korean Financial Supervisory Service's disclosure system, with five tools covering company search, filing search, and financial data at three levels of depth.
What you get
- search_company resolves a Korean company to its basic corporate information, which is the identifier every other call needs.
- search_disclosures searches filings by company or browses them, so a specific report and a survey are both reachable.
- get_financial_summary returns the key figures — the answer to most questions — while get_full_financial_statements returns every account item for when it is not.
- compare_financials puts several companies side by side rather than requiring one call each and manual alignment.
Requirements
DART_API_KEY, free from the Financial Supervisory Service.
Setup effort
One command plus a key — npx opendart-mcp, then supply credentials
USE CASES
01
Getting the headline numbers for a company
Find the company, then pull the key financials rather than the whole statement set.
02
Comparing several companies
Put them side by side in one call, with the account alignment already done.
03
Answering a question the summary does not cover
Take the full statements with every account item, when the answer depends on a specific line.
04
Finding what a company has filed
Search its disclosures, or browse filings when you are looking for what happened rather than for a specific company.
5 tools
Counted once with only startup setup. Other versions, modes or optional credentials may expose a different list.
get_financial_summary
Get key financial data for a Korean company (기업 주요 재무 데이터 조회). Returns revenue, operating profit, net income, total assets/liabilities/equity with year-over-year change rates.
get_full_financial_statements
Get full financial statements with all account items (전체 재무제표 상세 조회). Returns every line item of BS, IS, CIS, CF, or SCE.
search_company
Search for a Korean company and get basic corporate info (한국 기업 검색 및 기본 정보 조회). Input can be a company name (삼성전자), stock code (005930), or DART corp code (00126380).
search_disclosures
Search DART disclosure filings (공시 보고서 검색). Can search by company or browse all recent filings. Returns filing title, date, and DART link.
BEFORE YOU INSTALL
What to know first
Tools you get
5 tools when we connected. All tools read and cover Korean listed companies only; the free DART OpenAPI key allows 10,000 requests a day.
Requires
- npx on PATH
- DART_API_KEY in your environment
Where it runs
Both documented clients run the server on your machine.
CONTEXT COST
Light Standing cost
Rated by the size of the 5 tool definitions that ride along on every turn, not by how many there are
INSTALLATION
Connect your client
Server setup
TERMINAL
npx opendart-mcpMCP Clients
Claude Desktop, Cursor
JSON
{
"mcpServers": {
"opendart": {
"command": "npx",
"args": [
"-y",
"opendart-mcp"
],
"env": {
"DART_API_KEY": "<YOUR_DART_API_KEY>"
}
}
}
}
