Blockchain, Crypto & Web3 in Japan & Korea
8 blockchain, crypto & web3 providers across Japan & Korea, publishing 3 APIs.
Blockchain, Crypto & Web3 across Japan & Korea — 8 providers on the APIs.io network sit in both cohorts, and between them they publish 3 indexed APIs.
3 of the 8 publish at least one machine-readable API; 5 publish nothing indexed at all. That split is the first thing worth reading here — a vertical can be well represented in a market and still have almost no programmable surface.
By Kin Score band: 4 minimal, 3 thin, and 1 exemplar.
Leading by rating: PAY.JP, Korbit, Bithumb, Dunamu, Aerial Partners, 8percent, and 2 more.
Region membership is derived from three explicit signals — a provider tag, a provider-name pattern, or a stated headquarters in the provider’s own description. This is a map of stated headquarters, not of markets served.
Providers (8)
| Provider | Description | APIs | Rating |
|---|---|---|---|
| PAY.JP | PAY.JP is an online payment service operated by PAY, Inc. (PAY株式会社) in Japan. Its Stripe-style REST API lets merchants create charges, tokenize cards, manage customers, run subs... | 1 | exemplar |
| Korbit | Korbit is South Korea's first cryptocurrency exchange, founded in 2013 and headquartered in Seoul, offering KRW-denominated spot trading of bitcoin, ether and other digital asse... | 1 | thin |
| Bithumb | Bithumb is South Korea's leading cryptocurrency exchange platform offering REST and WebSocket APIs for spot trading across KRW, BTC, and USDT markets. The APIs cover market data... | 1 | thin |
| Dunamu | Dunamu Inc. (두나무 주식회사) is a South Korean fintech and blockchain company founded in April 2012 and headquartered at 369 Gangnam-daero, Seocho-gu, Seoul. Dunamu operates Upbit, Ko... | 0 | thin |
| Aerial Partners | Aerial Partners (株式会社Aerial Partners, Roppongi, Minato-ku, Tokyo) builds digital-asset accounting, tax and data-management software for the Japanese market. Its current product ... | 0 | minimal |
| 8percent | 8percent (에잇퍼센트) is a Seoul-based fintech company, founded in November 2014, that built Korea's first-generation peer-to-peer lending marketplace and in June 2021 became the cou... | 0 | minimal |
| Taiyaki Studios | Taiyaki Studios is a Tokyo-based startup working to redefine how anime is consumed, delivering stories that are immediate, engaging, and satisfying. Surfaced as a portfolio comp... | 0 | minimal |
| NOD Games | NOD Games is a Seoul-based blockchain game studio founded in 2019 by CEO Chanki Lee, building entertaining game content and open, player-owned game platforms where gamers and co... | 0 | minimal |
Indexed API documents (28)
Two numbers, both real: these providers publish 3 APIs as their own documents, which the catalog indexes split one-per-resource into 28 documents.
PAY.JP 3D Secure API
PAY.JP Account API
PAY.JP Balances API
PAY.JP Cards API
PAY.JP Charges API
PAY.JP Customers API
PAY.JP Events API
PAY.JP Plans API
PAY.JP Platform API
PAY.JP Statements API
PAY.JP Subscriptions API
PAY.JP Terms API
PAY.JP Tokens API
PAY.JP Transfers API
Korbit Open API v2 WebSocket
Korbit Asset API
Korbit Deposit (Crypto) API
Korbit Deposit/Withdrawal (KRW) API
Korbit Other API
Korbit Quotation API
Korbit Trading API
Korbit Withdrawal (Crypto) API
Bithumb WebSocket API
Bithumb Account API
Bithumb General API
Bithumb Market Data API
Bithumb Spot Trading API
Bithumb Wallet API
Other industries in Japan & Korea
Blockchain, Crypto & Web3 elsewhere
This page is the intersection of two independently computed cohorts:
Japan & Korea and
Blockchain, Crypto & Web3. A provider appears here only when it is
already a member of both. Japan & Korea membership is matched on tag, name pattern, stated HQ,
so this is a floor rather than a census — coverage gaps show up here as small numbers, not as absent pages.
Work with this as data
Every region here is available over the APIs.io API and to AI agents over MCP.