KRTools API

Free JSON APIs for working with Korean data. No key, CORS enabled.

GET /v1/romanize?q=

Korean address/text to Revised Romanization. try

GET /v1/brn?n=

Korean business registration number (사업자등록번호) checksum validation. try

GET /v1/title?q=

Strip promo noise from Korean marketplace product titles. try

Pricing

Free: fair use (~1,000 req/day). Pro: 19 USDC/month, higher limits, batch endpoint, priority support. Pay to Solana AmP2m5HavVznQ2GfMkcFwikXtWfBhs8qvfYhgv1x3fWY or Base 0x543e1bae93553c08a7658f5c5404b93dff3d8fa3, then paste your tx hash here to get your Pro key instantly (verified on-chain).

Also see PayLane, free USDC invoices.