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KRX in English
HomeMarketsStocksFinancialsGuide
NewsfeedInsightsEarningsBroker research
AI Value ChainAPI overviewPricingDocumentationPlan & billing
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Market Pulse

Daily · Sep 17, 2026 · data.go.kr + ECOS
KOSPI
6,715.41
-2.56 (-0.04%)
KOSDAQ
822.18
+6.20 (+0.76%)
KOSPI 200
1,058.27
-1.78 (-0.17%)
USD/KRW
1,382.20
Standard APIOverviewPricingDocumentationAccount
Standard API · Overview

Korean financial data API, backed by DART filings.

Standard API combines DART financials, English company records, and filing source links for 313 KOSPI and KOSDAQ companies. One plan covers company discovery and every documented financial endpoint.

Build research dashboards, screening tools, and internal data products with reported financial values, separately calculated metrics, and clear missing-data handling.

View pricingRead documentation
Companies
313

Top 200 KOSPI and top 100 KOSDAQ companies by market capitalization, plus AI Value Chain companies.

Primary source
DART

Official filing and financial-statement source for fundamentals.

Access
Coming soon

Public subscriptions are not open yet. Preview pricing and sign up for a launch notification.

Included data

What the API returns

English company objects

Six-character alphanumeric ticker, company names, market segment, corporation code, and issuer reference fields for Korean listed companies.

Reported financials and key metrics

Eleven reported financial values, plus five separately calculated metrics: operating margin, net margin, liabilities/equity, quick ratio, and annual total-equity ROE.

Traceable sources

Fiscal period, report code, scope, receipt number, DART source URL, source account, value source, formula key, and collection timestamps where applicable.

Clear missing values

Unavailable values remain explicit nulls with missing-reason fields instead of fake zeros or shape-breaking omissions.

Sample Request

Try ticker 005930

curl https://www.koreantickers.com/v1/companies/005930/fundamentals \
  -H "Authorization: Bearer $KOREANTICKERS_API_KEY" \
  -H "Accept: application/json"
Standard API responses include source and nullability metadata so downstream tools can distinguish unavailable facts from reported zero values.
Endpoints

Authenticated API paths

Company discovery
GET /v1/companies

Find companies covered by the Standard API.

Fundamentals
GET /v1/companies/{ticker}/fundamentals

Compact company and financial metric profile.

Financial facts
GET /v1/companies/{ticker}/financial-facts

Normalized metric history across periods.

Reporting periods
GET /v1/companies/{ticker}/periods

Current retained history with filing receipts and source timestamps.

Data coverage
GET /v1/companies/{ticker}/coverage

Ticker-scoped dataset availability and freshness diagnostics.

Indicators
GET /v1/companies/{ticker}/indicators

Five calculated key metrics with verified DART inputs and explicit formulas.

Statements
GET /v1/companies/{ticker}/statements

Reported DART statement lines with source-account metadata.

Filings
GET /v1/companies/{ticker}/filings

Filing chronology and receipt metadata.

Use Cases

Where this fits

Research screeners

Add Korean companies to dashboards with English company names, sectors, and comparable fundamentals.

Investor portals

Show DART-backed company snapshots without sending users through Korean-only filing workflows.

Integration evaluation

Check large-cap, KOSDAQ, and missing-data examples against your application's requirements before integrating.

Data sources

Built around traceable public records

DART and English OpenDART are used for filings and financial-statement provenance.

Market and market-cap fields are optional reference attributes, not a price-history or quote-feed product.

Data refreshes after DART collection and processing; publication-to-API latency is not guaranteed.

Korean Tickers is not affiliated with DART and is not a broker, investment adviser, or exchange quote feed.

Explore further

One Standard API

Company lookup and DART financials are included in the same Standard API plan. Explore the use cases and source material below.

Financial statement use casesCompany lookup use casesData sources
Before you integrate

Korean financial data API: common questions

What is the Korean Tickers financial data API?

Korean Tickers Standard API provides English JSON access to DART financial statements, company records and filing provenance for 313 KOSPI and KOSDAQ companies. It includes 11 reported financial metrics, five separately calculated key metrics, statement lines, filing records, reporting periods and data coverage.

Explore the eight endpoints →

Which Korean companies are covered?

Top 200 KOSPI and top 100 KOSDAQ companies by market capitalization, plus AI Value Chain companies. The published coverage snapshot contains 313 unique companies. Use GET /v1/companies with an API key for the exact membership; the wider public stock directory is not the API coverage list.

Explore the AI Value Chain →

How much does the API cost, and how do I get a key?

Public API subscriptions are coming soon. Planned pricing is $19.99 USD per month, with 3,000 requests per Korean calendar day and 120 requests per 60-second window. Checkout is not available yet. Join the launch notification list on the pricing page; signing up does not charge you or activate an API key. Final pricing and availability will be confirmed at launch. Existing private pilot access is unchanged.

Get a launch notification →

How often is DART data updated?

DART filing collection is scheduled twice daily, at 09:00 and 18:00 Asia/Seoul. New data becomes available after processing, validation and publication. This is not an immediate filing feed and publication-to-API latency is not guaranteed. Inspect the periods and coverage endpoints for source timestamps.

Read the freshness contract →

How much financial history is included?

Up to the latest eight fiscal reporting slots per company: Q1, Q2/H1, Q3/9M and Q4/annual. Consolidated and separate statements share a slot. Source values may be cumulative or annual, so these are not necessarily eight standalone quarters. Older normalized rows roll out after a new complete slot is validated and published.

Check reporting periods →

Are these DART facts or AI-generated estimates?

Reported financial facts come from DART disclosures, not AI estimates. Calculated metrics are separate and include formulas and input provenance. Missing data remains null with a reason, not a fabricated zero. Filing identifiers and source-account metadata support verification.

Inspect provenance and null handling →

Does the API include Korean stock prices or broker reports?

Standard API is a financial-statement and company-data service, not a real-time quote or price-history feed. Optional market reference fields do not turn it into a quote product. Third-party report bodies, publisher images and paid research text are not included. Raw-response resale and model-training use require rights beyond the standard plan.

Review data and usage boundaries →
Download the public OpenAPI 3.1 specification →
Korean Tickers·Research reference for Korean listed companies.
API overviewPricingDocumentationPlan & billing
Prices use KIS quote snapshots with data.go.kr daily fallback. Financials use DART; macro data uses ECOS.·Market data is informational and not investment advice.
KIS snapshots are refreshed every 30 minutes and are not a streaming quote feed.·Sources
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