Build on South Korea filings programmatically.

The FinancialReports API delivers South Korean filings through the same single REST surface, one x-api-key header, and one shared rate-limit bucket used across all covered markets. A Korea-only integration is a one-parameter filter (?country=KR) on the global filings endpoint - the same key that accesses Tokyo, Frankfurt, and London data retrieves Seoul data at no additional cost and under no separate rate limit. There is no separate Korea-specific API endpoint, no Korea-specific authentication step.

For real-time pipelines the webhook channel is the recommended path: subscribe once, receive a POST with full filing metadata within roughly 60 seconds of publication. South Korea's quarterly reporting mandate produces one of the highest periodic-report throughput rates in Asia, with four mandatory quarterly report dates per year per KOSPI issuer stacking on top of the continuous current-report volume. The webhook payload shape is identical across all covered markets - a Korean Susi-bogo-seo material-event report arrives with the same JSON envelope as a German BaFin ad-hoc or a Hong Kong Chapter 14A circular - so your handler stays market-agnostic.

Filing bodies are available as JSON metadata, Markdown via /api/filings/{id}/markdown/, and original PDF. The Markdown rendering is particularly valuable for Korean content where the source PDFs contain complex table-heavy financial statements in Korean; the processed text extracts the narrative and structured content into a consistent, parseable form. K-IFRS financial data is exposed in the JSON metadata layer - because K-IFRS is fully converged with IFRS, financial line-items from Korean annual reports map directly to the same schema as European IFRS filings without reconciliation overhead, enabling genuinely cross-border financial databases that span TSE, KOSPI, and Euronext issuers under a single accounting-standard assumption.

Common API integrations for Korean data include backfilling KOSPI 200 consolidated financials for quant research (with particular depth in the semiconductor supply chain - Samsung Electronics, SK Hynix, and the ~40-company ecosystem below them), triggering on current reports for chaebol affiliate transactions and capital raises, monitoring quarterly earnings for the battery and EV supply-chain cluster (LG Energy Solution, Samsung SDI, SK Innovation, EcoPro), and constructing cross-border technology-sector databases that span Korean KOSDAQ names alongside NASDAQ and TSE Growth listings. Trial keys are available on request; the web product is free and publicly indexed for coverage verification.