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2s.io law trademark-search
https://2s.io/api/law/trademark-search
payable
Search US trademarks by wordmark text, owner name, or goods/services — the text search the USPTO offers no public API for. Pass `query` for full-text search (ranked best-match first), or `serial` / `registrationNumber` for an exact record. Filter with `field` (mark|owner|all), `status` (live=registered+pending only, default; all=includes dead/abandoned), and `intlClass` (Nice class, e.g. 9). Retur
We sent a real
GET request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.006
- Network
- base
- Pay to
- 0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- GET
- Response latency
- 78 ms
- Payment options
- 2 usable of 2
- Last checked
- 2026-08-10T09:15:16.813Z (1d ago)
- Category
- search
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2F2s.io%2Fapi%2Flaw%2Ftrademark-search"