Free Business APIs

Domainsdb.info lets you search registered domain names by keyword, TLD, or zone with no authentication needed.

Markerapi provides free search access to the USPTO trademark database, letting you check if a brand name is already trademarked.

The Tenders in Hungary API from tenders.guru delivers publicly available government procurement data for Hungary, including contract values, buyer and supplier names, and tender dates.

The Tenders in Poland API provides structured access to Polish government procurement notices and contract awards from tenders.guru, covering public sector buyers across all regions of Poland.

The Tenders in Romania API by tenders.guru exposes Romanian public procurement data including tender details, contract values, and awarded suppliers, all freely accessible without authentication.

The Tenders in Spain API from tenders.guru delivers Spanish public procurement data in JSON format, covering central government, autonomous communities, and local authorities.

The Tenders in Ukraine API from tenders.guru offers free, unauthenticated access to Ukrainian public procurement data including tender titles, contracting authorities, contract values, and awarded suppliers.