The global trademark API
Search, screen, and monitor trademarks across USPTO, EUIPO, WIPO, UKIPO, and more with one unified API.
Trademark intelligence for modern platforms
Search, screening, scanning, and monitoring in one API. Built for developers who need trademark data at scale.
One API for all trademark intelligence
REST endpoints for search, screening, listing checks, and monitoring. The same JSON schema across every register. Screening and listing checks are open to design partners during beta; request access.
Fast responses
Typical searches return in under a second
Built for reliability
Engineered for a 99.9% uptime target
Developer-friendly
Clear docs, copy-paste examples, predictable errors
// Search trademarks across offices
const response = await fetch('https://api.signa.so/v1/trademarks', {
method: 'POST',
headers: {
Authorization: 'Bearer sig_xxxxxxxxxxxxx',
'Content-Type': 'application/json'
},
body: JSON.stringify({
q: 'CloudForge',
similarity: ['identical', 'fuzzy', 'embedded', 'phonetic', 'lookalike'],
filters: { jurisdictions: ['US', 'EU', 'GB'], nice_classes: [9, 42] },
limit: 20
})
});
const { data, has_more, pagination } = await response.json();
// Ranked matches, each with match.tier and match.viaCoverage
40M+ records from USPTO, EUIPO, WIPO, UKIPO, and more registers.
Synced Updates
Records synced from each office's official source on its publication schedule.
AI-Powered
Smart matching with fuzzy, phonetic, and lookalike-character detection.
Simple Integration
Production-ready in minutes with copy-paste examples.
Built for speed and precision
Fast, accurate, and scalable. The infrastructure underneath every Signa endpoint.
Fast at any scale
Pre-normalized, indexed records keep searches fast at one request or one million.
AI-assisted risk detection
Fuzzy, phonetic, and lookalike matching surface conflicts a keyword search would miss.
Consistent uptime
Engineered for a 99.9% uptime target.
Coverage
One API call reaches the US, EU, UK, Canada, Australia, and a growing set of national registers.
Verified data at scale
Every record is normalized, deduplicated, and checked against its official source.
Similarity channels: identical, fuzzy, embedded, phonetic, look-alike
Trademark records synced from official registers.
Typical search response, timed server-side across 471 benchmark searches (Aug 2026).
Uptime target across all our services.
Ready to get started? Start building today
Start on the free tier and run your first trademark search in minutes.
Get API KeyView Documentation