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LegalPulse Trademark Knock-Out Check
x402
LegalPulse Trademark Knock-Out Check is a paid API for AI agents from legalpulse.theaslangroupllc.com, paid per call via x402, $0.5/call, status unknown (last checked 2026-09-14).
Performs a live USPTO TSDR trademark knock-out search for a candidate name, returning official conflict risk verdicts with verbatim active/dead mark records, owner details, classes, and filing dates.
Price / call$0.5
Success—
StatusUnknown
How this service works
Trademark knock-out check with live official verification: name in, conflict risk verdict out. Candidate conflicting marks are looked up in the USPTO TSDR system in real time and returned as verbatim official records (LIVE/DEAD status, owner, classes, dates) — research leads that could not be officially verified are labeled as such. US federal register; names the right register for non-US markets. Call before you commit to a name.
Output
Returns a conflict risk verdict for the queried name, plus a list of candidate conflicting marks pulled in real time from USPTO TSDR — each record includes LIVE/DEAD status, registrant owner name, international goods/services classes, key dates (filing, registration), and a flag indicating whether the match could be officially verified. Unverifiable research leads are labeled as such.
Example use cases
Example prompt
“Before I commit to the name 'Waveline' for my new fintech app, can you run a trademark knock-out check against the US federal register and tell me if there are any live conflicting marks, who owns them, and what classes they cover?”
Technical details
Endpoint
GEThttps://legalpulse.theaslangroupllc.com/api/legal/trademark-checkWhen to prefer
Use this endpoint when you need live, officially-sourced USPTO trademark conflict data for a specific candidate name before committing to it — not for general IP education, full trademark application filing, or non-US trademark research. Prefer this over static databases or general legal guidance endpoints when real-time TSDR verification and verbatim official records matter.
Side effects
- Name query returns no results — may indicate no conflicts or an overly narrow search term
- USPTO TSDR system temporarily unavailable — API may return an error or degraded results
- Very common or generic terms may return an overwhelming number of candidate conflicts
- Non-US trademarks are out of scope — endpoint covers US federal register only; non-US markets are flagged but not searched
- Payment failure (x402) blocks the call before any search is performed
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"risk": "potential_conflict",
"headline": "A LIVE registration for a near-identical mark exists in class 9 — proceed only with attorney review.",
"conflicts": [
{
"mark": "NIMBUS",
"severity": "significant",
"serial_number": "97123456",
"why_it_conflicts": "Near-identical wordmark; overlapping software goods (class 9/42)"
}
],
"next_steps": [
"Run the official search at tmsearch.uspto.gov",
"Consult a trademark attorney"
],
"official_verified_records": [
{
"mark": "NIMBUS",
"owners": [
"Nimbus Inc."
],
"classes": [
"009"
],
"tm5_status": "LIVE/REGISTRATION/Issued and Active",
"serial_number": 97123456
}
]
}
}Tags
x402
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