the402 endpoint detail

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legalpulse.theaslangroupllc.com legal trademark-check

https://legalpulse.theaslangroupllc.com/api/legal/trademark-check

answers 402

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.

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.50
Network
base
Pay to
0x50ab2018c06c6E4eAA9BA52057Eb55eD284912fc
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
295 ms
Payment options
13 usable of 13
Last checked
2026-09-06T01:10:40.557Z (36d ago)
Category
search

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Flegalpulse.theaslangroupllc.com%2Fapi%2Flegal%2Ftrademark-check"