Global Trademark Data API
The data platform has aggregated 137 million trademark records from 27 offices. One integration covers search, similarity screening and status monitoring, with normalised data and status semantics, plus an OpenAPI spec and MCP Server for both humans and AI agents.
Search & similarity screening
One endpoint for exact lookup and approximate screening, across mark text, application number, owner, agent and Nice classes.
Normalised status across offices
Raw status codes from each office are mapped to a four-axis model, so you never need a per-office branch in your logic.
Coverage & freshness
Record counts, sync cadence and known gaps are published per office and reconciled weekly.
AI Agent integration
A built-in MCP Server lets Claude Desktop, Cursor or your own agent call the API directly, with the same auth and billing.
curl -X POST https://api.isud.cn/api/v1/open/trademarks/search \
-H "X-API-Key: lgr_live_xxx" \
-H "Content-Type: application/json" \
-d '{"query":"华为","field":"exact","current":1,"size":20}'For AI agents: /en/llms.txt · /llms.txt (中文) · /openapi.yaml