KR-DART Events — Korean corporate disclosures for AI agents
Real-time DART (Korea's SEC EDGAR equivalent) filing events, structured for machines. Pay per call with USDC via x402 — no account, no API key, no subscription.
Base URL: https://dartapi.ljaysk.com (machine docs: /llms.txt, /openapi.json)
Korea's exchanges publish ~2,500 corporate filings every trading day, in Korean. This service polls DART every 15 seconds, classifies each filing into 31 machine-readable categories, scores importance 0–1, and serves structured JSON with English labels and English company names.
Endpoints
| Endpoint | Price | What you get |
|---|---|---|
GET /v1/events | $0.002 | Full filing stream, cursor-based delta |
GET /v1/events/material | $0.005 | Material filings only (supply contracts, capital raises, CB/BW, control changes, delisting risk, M&A…) |
GET /v1/events/{rcept_no} | $0.01 | Single filing detail |
GET /v1/events/{rcept_no}/document | $0.02 | Full original text, parsed to clean plain text (not charged on retrieval failure) |
GET /v1/company/{code}/events | $0.005 | Per-company timeline (6-digit ticker) |
GET /v1/bids | $0.005 | KONEPS government procurement bid notices (goods/service/construction/foreign), cursor delta |
GET /v1/bids/search | $0.005 | Bid search by keyword, type, minimum budget (KRW) |
GET /v1/bids/{bid_ntce_no} | $0.01 | Bid notice full detail (all raw KONEPS fields) |
GET /v1/awards | $0.005 | Award results — winner and amount |
GET /v1/prespecs | $0.01 | Early signal: pre-spec notices, before bid notices |
GET /v1/orderplans | $0.01 | Earliest signal: agency order plans for the fiscal year |
GET /v1/match/{bizno} | $0.05 | Personalized matching — company profile + biddable notices, scored |
GET /v1/company-awards/{bizno} | $0.02 | Company award history — competitor intel |
Free: /v1/health, /, /llms.txt, /openapi.json.
Payment: x402 exact scheme, USDC on Base or Solana (Solana fees sponsored by
the facilitator — buyer wallets need zero SOL).
Quickstart (see the 402)
curl https://dartapi.ljaysk.com/v1/events/material
# -> HTTP 402 with payment requirements (accepts: base / solana)
Python client (pay + fetch in ~60 lines)
See client_example.py. Fund any EVM wallet with a few cents
of USDC on Base, then:
X402_PRIVATE_KEY=0x... python client_example.py /v1/events/material
Standard x402 SDKs (x402-fetch, x402-axios, x402 python) work as-is.
MCP server (use from Claude / any MCP client)
mcp_server.py wraps the API as MCP tools
(kr_dart_material_events, kr_dart_all_events, kr_dart_company_timeline,
kr_dart_filing_detail).
{
"mcpServers": {
"kr-dart-events": {
"command": "uv",
"args": ["run", "--with", "mcp,eth-account", "python", "/path/to/mcp_server.py"],
"env": { "X402_PRIVATE_KEY": "0x..." }
}
}
}
Typical agent loop
Poll /v1/events/material?since_cursor=<last> every 60s during KST market hours.
New filings appear within ~15s of DART publication. Cost ≈ $2/day.
Notes
- Source: DART open data (attributed). Data only — not investment advice.
- Event index starts 2026-07-20; earlier filings are not indexed.
server/contains the full seller implementation (FastAPI + hand-rolled x402 middleware, CDP facilitator with JWT auth) — reference for building your own x402 seller.
License
MIT — see LICENSE. Operated by LJay AI Media Group · [email protected]