# Open Trademarks (opentrademarks.org)

Searches US, EU and Israeli trademark registers for live marks matching a name's spelling, sound, or class overlap.

- Atlas card: https://inite.ai/en/atlas/opentrademarks.org
- Site: https://opentrademarks.org
- For: Businesses and founders checking whether a trademark name is already registered in US, EU or Israeli registers
- Categories: legal
- Use not measured/100 · alive 100/100

## Used for

- check whether a proposed trademark name conflicts with live marks
- compare marks by spelling, sound and class overlap
- search US, EU and Israeli trademark registers via MCP or CLI

## Price

Not read yet.

## For developers

- OpenAPI: https://opentrademarks.org/openapi.json (4 paths)
- MCP server: org.opentrademarks/trademarks (namespace; open on 2026-11-03, 2 tools)
- Read 2026-11-03

## MCP server, measured daily

Server: https://mcp.opentrademarks.org/mcp, checked every day since 2026-11-03 (1 checks).

- Answered: measuring, 1 daily checks so far
- Median first answer: 271 ms
- Sign-in: none
- Context its tool definitions take: about 359 tokens (2 tools)
- Tool definitions: A, 92/100
- Failing "params_described": 1 of 2 tools
- Method: https://inite.ai/en/atlas/mcp/report

## Your data

- Certifications stated: none
- Training on your data: no (https://opentrademarks.org/privacy)
- Read 2026-11-03

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Source: INITE Atlas, https://inite.ai/en/atlas/opentrademarks.org. JSON: https://inite.ai/api/atlas/opentrademarks.org. MCP: https://inite.ai/api/mcp (atlas_lookup).