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USPTO Trademark Lookup via TSDR API
x402
USPTO Trademark Lookup via TSDR API is a paid API for AI agents from x402.agentutility.ai, paid per call via x402, $0.03/call, status unknown (last checked 2026-10-17).
Looks up any US trademark by serial number or registration number and returns mark text, owner, status, filing date, classes, and goods/services descriptions.
Price / call$0.03
Success—
StatusUnknown
How this service works
Looks up any US trademark by serial number or registration number via the federal public TSDR API. Returns mark text, owner, status, filing date, classes, and goods/services. Use it as a trademark search, USPTO trademark lookup, or federal trademark database query.
Output
Returns structured trademark data including: mark text (the trademarked name or phrase), current owner name and address, application/registration status (e.g. live, abandoned, registered), filing date, international class numbers, and a description of the goods and services covered by the mark.
Example use cases
Verify competitor brand trademark status
“I want to check if our competitor's brand name is actually registered — their trademark serial number is 87654321. Can you pull the USPTO record and tell me the owner, status, and what product categories it covers?”
Due diligence before brand acquisition
“We're considering acquiring a company and need to verify their trademark. Can you look up USPTO registration number 4567890 and give me the full details — owner, filing date, status, and goods/services classes?”
Check if a trademark has lapsed
“I think the trademark for a product I want to use might have expired. The serial number is 76543210 — can you check the federal trademark database and tell me if it's still active or abandoned?”
Technical details
Endpoint
POSThttps://x402.agentutility.ai/trademark-search?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need authoritative federal trademark data directly from the USPTO TSDR system, specifically when you already have a serial number or registration number to look up. Prefer this over general trademark search tools when you need exact ownership, status, and goods/services details for a known trademark identifier rather than performing a keyword-based name search.
Side effects
- Serial or registration number not found in TSDR — returns error or empty result
- Invalid number format provided — may return validation error
- USPTO TSDR API temporarily unavailable — upstream service error
- Number provided corresponds to a cancelled or expunged record with minimal data
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"found": true,
"mark_text": "APPLE",
"filing_date": "1977-09-14",
"status_category": "Live"
}
}Tags
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