Connect OpenDART to Gemini Enterprise
Query OpenDART directly from Gemini Enterprise. Arlet links the two through one MCP connection and takes care of API keys.
This server connects your AI client to OpenDART, the Financial Supervisory Service's official API over DART - Korea's electronic disclosure system where listed companies file their reports. For anyone tracking Korean competitors (semiconductors, batteries, autos, chemicals), this is the primary source.
Key features:
- resolve_company: turn a company name (Korean or English) or 6-digit stock code into the 8-digit corp_code that the other tools take. The corp-code master is a 100k-company archive, cached server-side so lookups stay fast.
- list_disclosures: filings by company, date range and type - periodic reports (annual ์ฌ์ ๋ณด๊ณ ์, quarterly ๋ถ๊ธฐ๋ณด๊ณ ์), major issues reports, ownership disclosures - each with a direct DART viewer link.
- get_company: profile with official names, market (KOSPI/KOSDAQ/KONEX), CEO, registration numbers, industry and fiscal year end.
- get_financials: key accounts (revenue, operating profit, net income, total assets/liabilities/equity) from a chosen year and period, consolidated by default, with two prior periods for comparison.
Report names and account names come back in Korean; the tool notes explain the common ones (๋งค์ถ์ก = revenue, ์์ ์ด์ต = operating profit).
Using the API requires a free 40-character key issued at opendart.fss.or.kr (English portal: engopendart.fss.or.kr) - email verification only, roughly 20,000 requests/day. Set it as DART_API_KEY in your Arlet environment variables.
How to connect OpenDART to Gemini Enterprise
- 1
In the Arlet dashboard, open Data tools, find OpenDART, set the API key issued by OpenDART and switch it on.
- 2
Sign in to Gemini Enterprise with your organization Google account and open the gear icon at the bottom left โ Connectors โ Add MCP Server.
- 3
In the MCP info tab, enter https://mcp.arlet.dev/mcp/ as the Server URL and "Arlet" as the Name. In the Auth tab, enter the OAuth settings from the Arlet docs (Authorization URL / Token URL / Client ID / Client Secret / Scopes) and click Add.
- 4
In the connector list on the chat screen, click Connect on Arlet, sign in with Google and authorize. Arlet can then be enabled with the toggle.
Adding custom connectors (MCP) requires a Gemini Enterprise subscription and is not available in the consumer Gemini app. See the docs for the values to enter in the Auth tab.