Japan & Korea
Japan and South Korea — high-density industrial and consumer-tech API markets.
Japan & Korea on the APIs.io network surfaces 44 providers mapped to this sales region — together publishing 178 indexed APIs.
Notable providers include Soracom, Samsung, Toyota, Kyoto University, Yonsei University, Papago, and 38 more — each profile links out to that provider’s APIs, capabilities, schemas, and governance artifacts.
Region mapping is derived from provider tags and provider-name pattern matching — it surfaces what is explicitly signalled in the structured data and intentionally does not infer further. Many providers operate across multiple regions; cross-listings are expected.
About this region
APIs from Japan and South Korea. Two of the world’s most mature industrial economies, with strong API concentration in manufacturing, automotive, robotics, gaming, and the deep B2B consumer-tech integrations that power both markets.
Providers (44)
| Provider | Description | APIs | Rating |
|---|---|---|---|
| Soracom | Soracom is a global IoT cellular connectivity and platform provider headquartered in Tokyo, founded in 2014, with regional operations in the US (Soracom Global) and EU. The plat... | 18 | strong |
| Samsung | Samsung Electronics is a global technology leader offering developer platforms for building applications and services across mobile devices, IoT, smart home, enterprise security... | 7 | thin |
| Toyota | Toyota Motor Corporation is a Japanese multinational automotive manufacturer that designs, manufactures, and sells vehicles, including cars, trucks, and buses. Founded in 1937, ... | 4 | thin |
| Kyoto University | Kyoto University is a national research university in Kyoto, Japan, ranked #37 in the QS World University Rankings 2025. Its public, machine-readable developer footprint is cent... | 2 | thin |
| Yonsei University | Yonsei University is a private research university in Seoul, South Korea, founded in 1885 and ranked #73 in the QS World University Rankings 2025. Its public, machine-readable f... | 2 | thin |
| Papago | Naver Papago translation REST API for translating text between Korean, English, Japanese, Chinese, and other Asian and European languages using Neural Machine Translation (NMT) ... | 5 | thin |
| Toss | Toss is a Korean financial super-app operated by Viva Republica that provides REST APIs for payments, banking, credit scoring, identity verification, and financial services acro... | 4 | thin |
| Paidy | Paidy is a Japanese buy now, pay later (BNPL) and digital payment service that enables Japanese consumers to make purchases and pay later via monthly consolidated billing. Merch... | 3 | 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... | 2 | thin |
| Kyushu University | Kyushu University (九州大学) is a national research university in Fukuoka, Japan, ranked #167 in the QS World University Rankings 2025. Its public, programmatic footprint is concent... | 2 | thin |
| LINE | LINE is a Japan-based messaging platform with over 200 million monthly active users across Japan, Taiwan, Thailand, and Indonesia, offering messaging, payments, news, and a broa... | 6 | minimal |
| JAXA | Japan Aerospace Exploration Agency (JAXA) provides public APIs and data services for satellite Earth observation data, including GCOM/ALOS satellite imagery, global precipitatio... | 5 | minimal |
| Coupang | Coupang is a South Korean e-commerce company offering rapid delivery of a wide range of products including groceries, electronics, fashion, and household goods through its mobil... | 1 | minimal |
| Nissan | Nissan is a multinational automaker that designs, manufactures, and sells a wide range of vehicles, including cars, trucks, and SUVs. They are known for their innovative technol... | 1 | minimal |
| KakaoPay | KakaoPay is a Korean mobile payment platform and fintech service by Kakao Corp providing REST APIs for payment processing, QR code payments, online checkout, subscription billin... | 4 | minimal |
| Rakuten | Rakuten Group is a Japan-headquartered internet conglomerate spanning e-commerce (Rakuten Ichiba), fintech (Rakuten Bank, Rakuten Card, Rakuten Securities), digital content (Rak... | 30 | minimal |
| KakaoBank | KakaoBank is South Korea's leading internet-only bank, offering REST APIs for account management, fund transfers, loans, credit scoring, and open banking data connectivity for t... | 5 | minimal |
| Hanyang University | Hanyang University is a private research university in Seoul and Ansan, South Korea, ranked #162 in the QS World University Rankings 2025. It operates an official API Developer ... | 2 | minimal |
| Keio University | Keio University is a private research university in Tokyo, Japan, founded in 1858, and ranked #188 in the QS World University Rankings 2025. Its public machine-readable footprin... | 1 | minimal |
| Nagoya University | Nagoya University (名古屋大学) is a national research university in Nagoya, Aichi, Japan, ranked #152 in the QS World University Rankings 2025. As a leading research institution it o... | 1 | minimal |
| Waseda University | Waseda University is a leading private research university in Tokyo, Japan, ranked #181 in the QS World University Rankings 2025. Its public, machine-readable developer footprin... | 3 | minimal |
| Tokyo Institute of Technology | Tokyo Institute of Technology (Tokyo Tech / Titech) was a national research university in Tokyo, Japan, ranked #76 in the QS World University Rankings 2025. In October 2024 it m... | 2 | minimal |
| Kakao | Kakao Corp. is the South Korean technology group behind KakaoTalk — the dominant mobile messenger in Korea — along with KakaoPay (payments), Kakao Bank (digital bank), KakaoMobi... | 17 | minimal |
| Hyundai | Hyundai Motor Company is a South Korean multinational automotive manufacturer specializing in designing and producing a wide range of vehicles including cars, SUVs, and commerci... | 1 | minimal |
| J-Quants | J-Quants is a financial data API service operated by Japan Exchange Group (JPX) that makes it easy for retail investors to obtain cleansed financial data such as stock prices an... | 1 | minimal |
| University of Tokyo | The University of Tokyo (UTokyo) is Japan's leading national research university, founded in 1877 and ranked #29 in the QS World University Rankings 2025. Its public, machine-re... | 2 | minimal |
| Tohoku University | Tohoku University is a national research university in Sendai, Japan, founded in 1907 and ranked #107 in the QS World University Rankings 2025. Its public, machine-readable deve... | 1 | minimal |
| Hokkaido University | Hokkaido University (北海道大学) is a national research university in Sapporo, Japan, founded in 1876 as Sapporo Agricultural College and ranked #173 in the QS World University Ranki... | 2 | minimal |
| Pohang University of Science and Technology | Pohang University of Science and Technology (POSTECH) is a private research university in Pohang, South Korea, founded in 1986 by the steelmaker POSCO and ranked #87 in the QS W... | 1 | minimal |
| Seoul National University | Seoul National University (SNU) is South Korea's flagship national research university, located in Seoul, and is ranked #34 in the QS World University Rankings 2025. Its primary... | 1 | minimal |
| Sony | Sony Group Corporation is a Japanese multinational spanning electronics, gaming, entertainment, image sensors, and financial services. Sony's developer-facing surface includes t... | 4 | minimal |
| Naver | Naver Corp. is South Korea's largest internet company, operating the Naver search portal, Naver Webtoon, Naver Pay, Naver Maps, Naver Shopping, WORKS Mobile, and the LINE messen... | 18 | minimal |
| Sungkyunkwan University | Sungkyunkwan University (SKKU) is a private research university in Seoul and Suwon, South Korea, with roots dating to 1398, and is ranked #123 in the QS World University Ranking... | 1 | minimal |
| Honda | Honda Motor Co., Ltd. is a Japanese multinational manufacturer known for automobiles, motorcycles, and power equipment. Honda provides APIs for customer satisfaction programs, r... | 2 | minimal |
| NTT | NTT (Nippon Telegraph and Telephone Corporation) is a Tokyo-headquartered global technology and telecommunications group with roughly 340,000 employees and a 150-year history of... | 6 | minimal |
| BODIK ODCS | BODIK ODCS is a organization open-data portal for Japan running CKAN. It exposes the CKAN catalog API, a standardized machine-readable interface over approximately 17,545 datase... | 1 | minimal |
| DATA GO JP | DATA GO JP is a national government open-data portal for Japan running CKAN. It exposes the CKAN catalog API, a standardized machine-readable interface over approximately 18,366... | 1 | minimal |
| Gifu Prefecture Open Data | Gifu Prefecture Open Data is a regional government open-data portal for Japan running CKAN. It exposes the CKAN catalog API, a standardized machine-readable interface over appro... | 1 | minimal |
| Tokyo Metropolitan Open Data | Tokyo Metropolitan Open Data is a regional government open-data portal for Japan running CKAN. It exposes the CKAN catalog API, a standardized machine-readable interface over ap... | 1 | minimal |
| Yokohama City Open Data | Yokohama City Open Data is a municipal government open-data portal for Japan running CKAN. It exposes the CKAN catalog API, a standardized machine-readable interface over approx... | 1 | minimal |
| e-Gov Data Catalog | e-Gov Data Catalog is a national government open-data portal for Japan running CKAN. It exposes the CKAN catalog API, a standardized machine-readable interface over approximatel... | 1 | minimal |
| Rakuten Mobile | Rakuten Mobile is the Japanese mobile network operator (MNO) of Rakuten Group, headquartered in Setagaya, Tokyo, and Japan's fourth nationwide carrier alongside NTT Docomo, KDDI... | 3 | minimal |
| Incheon Open Data | Incheon Open Data is a municipal government open-data portal for South Korea running DKAN. | 1 | minimal |
| Open Government, Korea | Korea Government Open Data | 1 | minimal |
APIs in this region (178)
All 178 APIs.
BODIK ODCS CKAN Action API
Bithumb REST API
Bithumb WebSocket API
Coupang Open API
DATA GO JP CKAN Action API
Gifu Prefecture Open Data CKAN Action API
Hanyang University Open API Developer Center
Hanyang University Open API SDKs
HUSCAP Institutional Repository
HUSCAP XML Sitemaps
Honda Customer Satisfaction API
Honda Rating Service API
Hyundai Developer API
Incheon Open Data DKAN API
J-Quants API
ALOS User Interface Gateway 2 (AUIG2)
G-Portal Web API
GSMaP Global Rainfall Watch API
JAXA Earth API
JAXA Himawari P-Tree Data Service
Daum Search API
Kakao Local API
Kakao Login (OAuth 2.0) API
Kakao Sync API
KakaoMap Web / JavaScript SDK
KakaoMobility Business API
KakaoNavi (Driving Directions) API
KakaoPay Online (Easy-Pay) API
KakaoPay PG (Payment Gateway) API
KakaoPay Subscription Payments API
KakaoStory API
KakaoTalk Channel API
KakaoTalk Friends API
KakaoTalk Message API
KakaoTalk Sharing API
Karlo (Text-to-Image) API
KoGPT API
KakaoBank Account Management API
KakaoBank Credit Scoring API
KakaoBank Loan API
KakaoBank Open Banking API
KakaoBank Transfer API
KakaoPay Face Recognition API
KakaoPay Login API
KakaoPay Money Transfer API
KakaoPay Online Payment API
KOARA OAI-PMH Metadata API
KURENAI OAI-PMH Metadata API
Kyoto University Integrated Authentication (Shibboleth/SAML)
Kyushu University Institutional Repository (QIR) OAI-PMH
QIR / Kyushu University Collections Bulk Metadata (TSV via Handle)
LINE Channel Access Token API
LINE Front-end Framework (LIFF) Server API
LINE Insight API
LINE Manage Audience API
LINE Messaging API
LINE Shop (Mission Stickers) API
Arcstar Universal One APIs
NTT Communications Things Cloud
NTT DOCOMO BUSINESS Developer Portal
Smart Data Platform — Enterprise Cloud 2.0
Smart Data Platform — Flexible InterConnect
docomo Developer Support
NAGOYA Repository OAI-PMH
Naver CAPTCHA API
Naver Cloud CDN+ / Global Edge API
Naver Cloud CLOVA OCR API
Naver Cloud CLOVA Speech API
Naver Cloud HyperCLOVA X API
Naver Cloud Object Storage API
Naver Cloud Platform Maps API
Naver Cloud Platform Papago APIs
Naver Cloud SENS Messaging API
Naver Cloud Server (Compute) API
Naver Datalab API
Naver Login (OAuth 2.0) API
Naver Maps (Web) API
Naver Papago Language Detection API
Naver Papago Translation (N2MT) API
Naver Search Open API
Naver Shortener (me2.do) API
Naver SmartEditor 2 API
Nissan
Open Government, Korea
Paidy Checkout
Paidy Payments API
Paidy Tokens API
Papago Document Translation API
Papago Glossary API
Papago Language Detection API
Papago NMT Translation API
Papago Website Translation API
OASIS Repository OAI-PMH
Rakuten Books Book Search API
Rakuten Books CD Search API
Rakuten Books DVD / Blu-ray Search API
Rakuten Books Foreign Book Search API
Rakuten Books Game Search API
Rakuten Books Genre Search API
Rakuten Books Magazine Search API
Rakuten Books Software Search API
Rakuten Books Total Search API
Rakuten GORA Golf Course Detail API
Rakuten GORA Golf Course Search API
Rakuten GORA Golf Plan Search API
Rakuten Ichiba Genre Search API
Rakuten Ichiba Item Search API
Rakuten Ichiba Ranking API
Rakuten Ichiba Tag Search API
Rakuten Item Price Navi API
Rakuten Kobo Genre Search API
Rakuten Kobo eBook Search API
Rakuten Pay Merchant API
Rakuten RMS (Merchant Server) API
Rakuten Recipe Category List API
Rakuten Recipe Category Ranking API
Rakuten Travel Area Class API
Rakuten Travel Hotel Chain List API
Rakuten Travel Hotel Detail Search API
Rakuten Travel Hotel Ranking API
Rakuten Travel Keyword Hotel Search API
Rakuten Travel Simple Hotel Search API
Rakuten Travel Vacant Hotel Search API
Rakuten CPaaS Confirm (OTP) API
Rakuten CPaaS SMS / Messaging API
Rakuten CPaaS Short URL API
Bixby Developer API
Galaxy Mobile SDKs
Knox Cloud APIs
Samsung Health SDK
Samsung Smart TV SDK
Samsung Wallet API
SmartThings API
S-Space OAI-PMH Repository Interface
Sony Neural Network Libraries (NNabla)
Sony Spresense SDK
Sony gobreaker Circuit Breaker
Sonyflake Distributed ID Generator
Soracom Air for LoRaWAN API
Soracom Air for Sigfox API
Soracom Analysis and Query API
Soracom Auth and Access Management API
Soracom Batch API
Soracom Billing API
Soracom Cloud Camera Services API
Soracom Event Handler API
Soracom Group Configuration API
Soracom Harvest API
Soracom Inventory API
Soracom Lagoon API
Soracom Napter API
Soracom Platform API (Aggregate)
Soracom SIM Management API
Soracom Sandbox API
Soracom Stats and Diagnostics API
Soracom Virtual Private Gateway API
Kingo Portal (SSO / Identity)
TOUR Institutional Repository OAI-PMH
GakuNin Shibboleth Identity Provider (SAML)
T2R2 Research Repository OAI-PMH
Tokyo Metropolitan Open Data CKAN Action API
Toss Pay API
Toss Payments API
Toss Payments Payouts API
Toss Payments Webhooks
Toyota Connected Services API
Toyota Dealers API
Toyota Telematics API
Toyota Vehicle API
UTokyo Digital Archive Portal (IIIF)
UTokyo Repository OAI-PMH
WINE Library Discovery (Ex Libris Primo)
Waseda Identity Provider (Shibboleth SAML SSO)
Waseda University Repository (OAI-PMH)
Yokohama City Open Data CKAN Action API
YUHSpace Institutional Repository (DSpace)
Yonsei Research Information Portal (Elsevier Pure)
e-Gov Data Catalog CKAN Action API
Mapped via tag aliases (Japan, Japanese, South Korea, Korea, Korean) and provider-name patterns (Japan, Japanese, Korea, Korean, Samsung, Sony, Toyota, Honda …).