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Signa
The global trademark API
Table of Contents
Signa - 2026 Pricing, Features, Reviews & Alternatives
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Last updated: November 2026
Signa overview
What is Signa?
Trademark data is spread across more than 180 national and regional offices, each with its own database, format and update schedule. Signa brings it together in one API, built for developers and AI agents. Search, screen and monitor trademarks across USPTO, EUIPO, WIPO, UKIPO and more, with records updated daily from the official registers.
Search a name and see identical and similar marks, including sound-alikes and spelling variants, with the reason each one matched. See a company's full portfolio across offices, subsidiaries included. Watch a mark, an owner or a class and get alerts with the opposition deadline attached. Use it through the API, SDK, MCP server or web app. Free to start, no card required.
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Signa’s user interface
Signa reviews
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Signa's key features
Most critical features, based on insights from Signa users:
All Signa features
Signa alternatives
Signa
Starting from
Free
IPBases
Starting from
No pricing info
Astra
Starting from
200
Per month
Starting from
No pricing info
Signa pricing
Value for money rating:
Starting from
Free
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