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io.github.kcw2034-sayouzone/mcp-opendart-server

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An MCP server that provides OpenDart API

Source code Documentation

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

PYPI package sayou-opendart-mcp
Claude Code 
claude mcp add mcp-opendart-server -e 'OPENDART_API_KEY=<your opendart_api_key>' -- uvx sayou-opendart-mcp==0.0.4
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "mcp-opendart-server": {
            "command": "uvx",
            "args": [
                "sayou-opendart-mcp==0.0.4"
            ],
            "env": {
                "OPENDART_API_KEY": "<your opendart_api_key>"
            }
        }
    }
}

Environment variables

  • OPENDART_API_KEY required secret Your API key for OpenDart

Documentation

From the project's README on GitHub, refreshed weekly. Links open on GitHub.

Contents
  1. OpenDart MCP Server
  2. 패키지 구조
  3. 배포 (Cloud Run)
  4. Tests
  5. Deploy sayou-stock
  6. Errors
  7. References

OpenDart MCP Server

OpenDart Crawling and Caching MCP Server

주식 정보를 OpenDart에서 종목 기본 정보 (펀더멘탈, fundamental)를 가져온다.

모델 컨텍스트 프로토콜 (Model Context Protocol, MCP) 서버를 빌도하고 배포

MCP 서버는 LLM에 외부 도구 및 서비스에 대한 액세스 권한을 제공

FastMCP를 사용, MCP 서버와 클라이언트를 빌드하는 빠르고 Pythonic한 방법을 제공

  • Gemini 3.0 Pro
  • Gemini 3.0 Flash
참조 문서

패키지 구조

├── opendart/
│   ├── __init__.py          # 공개 API 정의
│   ├── client.py            # OpenDART HTTP 클라이언트
│   ├── models.py            # 데이터 클래스 (DTO)
│   ├── utils.py             # 유틸리티 함수 & 상수
│   ├── crawler.py           # 통합 인터페이스 (Facade)
│   ├── examples.py          # 사용 예시
│   └── parsers/
│       ├── __init__.py
│       ├── document.py        # 문서 API 파서
│       ├── document_viewer.py # 문서 뷰어 API 파서
│       ├── disclosure.py      # 공시정보 API 파서
│       ├── finance.py         # 정기보고서 재무정보 API 파서
│       ├── material_facts.py  # 주요사항보고서 주요정보 API 파서
│       ├── ownership.py       # 지분공시 종합정보 API 파서
│       ├── registration.py    # 증권신고서 주요정보 API 파서
│       └── reports.py         # 정기보고서 주요정보 API 파서
├── tests/
│   ├── test_opendart.py       # OpenDART 테스트 (로컬 소스)
│   └── test_opendart_.py      # OpenDART 테스트 (sayou-stock)
├── __init__.py
├── .gitignore
├── Dockerfile
├── LICENSE
├── opendarts.py
├── pyproject.toml
├── README.md
├── requirements.txt
└── server.py

배포 (Cloud Run)

MCP_SERVER_NAME=opendart-mcp-server
export GOOGLE_CLOUD_PROJECT=sayouzone-ai
GCP 설정 (1회만)

서비스 활성화

gcloud services enable \
  run.googleapis.com \
  artifactregistry.googleapis.com \
  cloudbuild.googleapis.com

서비스 계정 생성

gcloud iam service-accounts create mcp-server-sa --display-name="MCP Server Service Account"
gcloud projects add-iam-policy-binding $GOOGLE_CLOUD_PROJECT \
    --member=user:$(gcloud config get-value account) \
    --role='roles/run.invoker'
gcloud projects add-iam-policy-binding $GOOGLE_CLOUD_PROJECT \
    --member=serviceAccount:mcp-server-sa@$GOOGLE_CLOUD_PROJECT.iam.gserviceaccount.com \
    --role="roles/secretmanager.secretAccessor"
배포

패키지 소스로 테스트

gcloud run deploy $MCP_SERVER_NAME \
    --service-account=mcp-server-sa@$GOOGLE_CLOUD_PROJECT.iam.gserviceaccount.com \
    --no-allow-unauthenticated \
    --region=us-central1 \
    --source=. \
    --labels=dev-tutorial=stocks-mcp

패키지 소스 및 접근권한 테스트

gcloud run deploy $MCP_SERVER_NAME \
    --region=us-central1 \
    --source=. \
    --labels=dev-tutorial=stocks-mcp

sayou-stock 설치 및 테스트

gcloud run deploy $MCP_SERVER_NAME \
    --service-account=mcp-server-sa@$GOOGLE_CLOUD_PROJECT.iam.gserviceaccount.com \
    --no-allow-unauthenticated \
    --region=us-central1 \
    --source=. \
    --labels=dev-tutorial=stocks-mcp

sayou-stock 설치 및 접근권한 테스트

gcloud run deploy $MCP_SERVER_NAME \
    --region=us-central1 \
    --source=. \
    --labels=dev-tutorial=stocks-mcp

Tests

Gemini 테스트
export PROJECT_NUMBER=$(gcloud projects describe $GOOGLE_CLOUD_PROJECT --format="value(projectNumber)")
export ID_TOKEN=$(gcloud auth print-identity-token)

settings.json

{
    "ide": {
        "hasSeenNudge": true
    },
    "mcpServers": {
        "opendart-remote": {
            "httpUrl": "https://opendart-mcp-server-$PROJECT_NUMBER.us-central1.run.app/mcp",
            "headers": {
                "Authorization": "Bearer $ID_TOKEN"
            }
        }
    },
    "security": {
        "auth": {
            "selectedType": "gemini-api-key"
        }
    }
}

Copy settings.json file to ~/.gemini/ directory.

cp settings.json ~/.gemini/
gemini
  • 삼성전자
  • 삼성전자 재무제표 보여줘
  • 삼성전자 재무 상태를 보여줘
  • 삼성전자 재무제표 보여줘
  • 2024년 삼성전자 재무제표 보여줘
  • 2025년 3분기 삼성전자 재무제표 보여줘
  • 삼성전자 배당 정보를 보여줘
  • 삼성전자 배당에 대해 알려줘
  • 삼성전자 배당이 어떻게 되지?
  • 2025년 삼성전자 배당이 어떻게 되지?
  • 삼성전자 최근 배당 성향에 대해 알려줘
  • 삼성전자가 지급하는 보상에 대해 알려줘
Loaded cached credentials.

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Tips for getting started:
1. Ask questions, edit files, or run commands.
2. Be specific for the best results.
3. Create GEMINI.md files to customize your interactions with Gemini.
4. /help for more information.

╭─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮
│ Gemini CLI update available! 0.14.0 → 0.15.0                                                                            │
│ Installed via Homebrew. Please update with "brew upgrade".                                                              │
╰─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯


⠋ Connecting to MCP servers... (1/2)

 Using: 2 MCP servers
╭─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮
│ >   Type your message or @path/to/file                                                                                  │
╰─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯
 ~/.../src/sayou/mcp/stocks_mcp (main*)                                      no sandbox (see /docs)                                       auto

Deploy sayou-stock

git push origin main
git tag sayou-stock-v0.1.1
git push origin sayou-stock-v0.1.1

Errors

> /mcp

Configured MCP servers:

🟢 stocks-remote - Ready (4 tools)
  Tools:
  - find_fnguide_data
  - find_yahoofinance_data
  - get_yahoofinance_fundamentals
  - save_fundamentals_data_to_gcs

🟢 zoo-remote - Ready (2 tools, 1 prompt)
  Tools:
  - get_animal_details
  - get_animals_by_species
  Prompts:
  - find


ℹ Gemini CLI update available! 0.14.0 → 0.15.0
  Installed via Homebrew. Please update with "brew upgrade".

 Using: 2 MCP servers
╭─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮
│ >   Type your message or @path/to/file                                                                                  │
╰─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯
 ~/.../src/sayou/mcp/stocks_mcp (main*)                     no sandbox (see /docs)                                     auto
> 삼성전자

ℹ Gemini CLI update available! 0.14.0 → 0.15.0
  Installed via Homebrew. Please update with "brew upgrade".
╭─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮
│ x  find_fnguide_data (stocks-remote MCP Server) {"stock":"삼성전자"}                                                      │
│                                                                                                                         │
│    MCP tool 'find_fnguide_data' reported tool error for function call: {"name":"find_fnguide_data","args":{"stock":"삼성전자"}} with  │
│    response: [{"functionResponse":{"name":"find_fnguide_data","response":{"error":{"content":[{"type":"text","text":"Error calling tool │
│    'find_fnguide_data': BrowserType.launch: Executable doesn't exist at                                                                     │
│    /root/.cache/ms-playwright/chromium_headless_shell-1194/chrome-linux/headless_shell\n╔══════════════════════════════════════════════════ │
│    ══════════╗\n║ Looks like Playwright was just installed or updated.       ║\n║ Please run the following command to download new          │
│    browsers: ║\n║                                                            ║\n║     playwright install                                    │
│    ║\n║                                                            ║\n║ <3 Playwright Team                                                  │
│    ║\n╚════════════════════════════════════════════════════════════╝"}],"isError":true}}}}]                                                 │
╰─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯
╭─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╮
│ -  Shell playwright install [current working directory /Users/seongjungkim/Development/sayouzone/base-framework/src/sayou/mcp/stocks_mcp] … │
╰─────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────╯

References

Frequently asked questions

What is io.github.kcw2034-sayouzone/mcp-opendart-server?

An MCP server that provides OpenDart API

How do I install io.github.kcw2034-sayouzone/mcp-opendart-server?

It runs on your machine. In Claude Code: claude mcp add mcp-opendart-server -e 'OPENDART_API_KEY=<your opendart_api_key>' -- uvx sayou-opendart-mcp==0.0.4. For other clients, paste the JSON configuration from this page into their MCP settings.

Does io.github.kcw2034-sayouzone/mcp-opendart-server need an API key?

Yes. It expects OPENDART_API_KEY, which you set in its configuration.

Is io.github.kcw2034-sayouzone/mcp-opendart-server open source?

Yes. Its code is on GitHub under the Apache-2.0 license.

Who maintains io.github.kcw2034-sayouzone/mcp-opendart-server?

It is published by sayouzone. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.