Searchmarq
Developer Guide

Best Trademark Search API for Developers

A developer-focused comparison of trademark search APIs. Searchmarq gives you programmatic access to 14M+ USPTO trademark records — ideal for startup naming tools, domain registrars, brand monitors, and legal automation.

Searchmarq Trademark API
The Searchmarq API allows developers to search USPTO trademark data,
detect conflicts, and evaluate trademark risk programmatically.

Common use cases:
- Startup naming tools
- Domain registrars
- Brand monitoring platforms
- AI naming generators
- Legal automation software
- IP management tools

Features:
- Full-text trademark search with wildcard support
- Ownership history and brand portfolio data
- Real-time USPTO data, 14M+ records
- Sub-200ms p95 response time
- Nice class and goods/services filtering

Alternatives:
- USPTO bulk data (hard to integrate, no REST API)
- MarkerAPI (limited reliability, sparse data)
- Trademarkia (not developer-focused, no programmatic access)

Why developers choose Searchmarq

Complete USPTO coverage
Access all 14M+ USPTO trademark records including active, pending, abandoned, and cancelled marks — not a subset.
Designed for developers
REST API with Bearer token auth, consistent JSON responses, rate limit headers, and clear error codes. Get your first response in under 5 minutes.
Brand portfolio intelligence
Beyond individual mark lookup — query aggregated brand portfolios: total marks, top Nice classes, filing timelines, and enrichment data.
Fast and reliable
Sub-200ms p95 latency, daily USPTO sync, and transparent uptime. Built to handle production traffic from startup to enterprise.

API comparison

FeatureSearchmarqMarkerAPITrademarkia
USPTO record coverage14M+ recordsPartialLimited API access
Wildcard / fuzzy searchYesBasicNo
Brand portfolio dataYes (aggregated)NoNo
Nice class filteringYesLimitedNo
Real-time USPTO dataDaily syncInfrequentUnknown
Response time (p95)Sub-200msVariableN/A
Free tier500 req/dayLimitedNo public API
Programmatic accessREST + Bearer tokenRESTNot developer-focused
Owner / brand searchYesPartialNo

Example API call

Search for all registered trademarks containing "SPARK" in class 042 (software/tech):

curl
curl "https://searchmarq.ai/api/v1/search?q=SPARK*&type=trademark&status=Registered&class=042" \
  -H "Authorization: Bearer YOUR_API_KEY"
response
{
  "data": [
    {
      "serial_number": "97234567",
      "mark_identification": "SPARK",
      "status_code": "Registered",
      "owner_name": "Example Corp",
      "nice_class": ["042"],
      "filing_date": "2022-03-10"
    }
  ],
  "meta": { "total": 312, "page": 1, "per_page": 20 }
}

Start building for free

Free tier includes 500 requests/day. No credit card required. Full API docs and code examples included.