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Signa

Search, screen and monitor trademarks across USPTO, EUIPO, WIPO, UKIPO and more with one API.

VerifiedUnclaimed
Visit signa.so
What it is

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.

Category
Developer Tools
Pricing
Freemium
Open source
No
Platforms
  • Web
  • API / CLI
Website
https://signa.so/
Launched
Tags
  • trademark api
  • trademark search
  • trademark monitoring
  • legal tech
  • mcp server
Verification

Checked by Makeroo on .

  • Real trademark search API with documented endpoints and sample code on the product site
  • Tagline matches the described offering of searching and monitoring trademarks across USPTO, EUIPO, WIPO and UKIPO
  • Developer Tools category fits an API product; screening and listing checks are beta-only, which the description does not overstate
Ownership

Unclaimed — claim it