Developer resources
Registry API Directory
Official company registry API endpoints, authentication, rate limits, and code samples. For developers building compliance, KYC, and AML tools.
5 registry APIs documented
Active
Beta
Deprecated
Undocumented
🇬🇷 Active
Greece
GEMI Public Business Portal API (publicity.businessportal.gr)
Auth: None
🇯🇵 Active
Japan
NTA Corporate Number Web API (houjin-bangou.nta.go.jp)
Auth: API Key
🇸🇬 Active
Singapore
ACRA BizFile+ / Myinfo Business API
Auth: OAuth 2.0
🇪🇸 Active
Spain
BORME / Registro Mercantil API (Data.boe.es + Provincial Registries)
Auth: None
🇬🇧 Active
United Kingdom
Companies House REST API
Auth: API Key
Missing an API? If you need an official registry API endpoint documented, contact hello@tehkimguan.com . The pilot covers Greece, Japan, Spain, UK, and Singapore. Additional jurisdictions publish based on reader demand.