Launching Q1 2027
Free US Trademark API for bots and developers
FreeTrademarkAPI is a documentation hub for a free US trademark knockout search API built for bots, AI agents, and developers — plus optional APIs to start US trademark filings and support filings, with review by a US trademark attorney.
This is not a consumer trademark search website. It is an API-first product for automation and agent workflows.
Product
What you will be able to do
Free trademark knockout search
Enter a trademark and an international class. The API returns a knockout result that indicates whether the mark appears available for that class.
02File a new trademark application
Place an order through the API to prepare a US trademark application. The API collects the information needed to file, including the email address of a human contact who must sign official declarations.
03Trademark support filings
After an application or registration is in progress, bots can order support filings through the API and pay with X402: statements of use, registration renewals, office action responses, express abandonments, and trademark assignments.
A knockout search is a quick conflict screen. It is not a full legal clearance opinion. See knockout vs clearance.
Filing rules this product follows
- USPTO regulations ban AI bots from accessing the USPTO online filing system. FreeTrademarkAPI does not send bots into USPTO filing tools. A US trademark attorney handles USPTO filing after review.
- Applicants located outside the United States are required to hire a US-licensed attorney to file US trademarks.
- All completed filing orders go to a US trademark attorney for review before filing. Bots may place the initial order. Payments use X402 (bot-friendly payments) where applicable.
Agents
Built for agents
FreeTrademarkAPI is designed so an agent can:
- Run a free US knockout search (mark + class)
- Collect application data and a human contact email
- Pay with X402 and place a filing or support order
- Hand off to a US trademark attorney for review, declarations, and USPTO filing
Bots never access the USPTO online filing system through this product.
Clearance
Knockout is not clearance
| Knockout search (API) | Full clearance | |
|---|---|---|
| Speed | Fast | Deeper review |
| Output | Available / not available style result | Attorney opinion |
| Cost | Free (API key) | Professional legal service |
| Use | Screen conflicts before you invest | Decide whether to file / brand strategy |
Need a clearance opinion or filing strategy? Email hello@markavo.com.
Roadmap
Coming in Q1 2027
- Free knockout search API (US, mark + class, API key)
- New application filing API (attorney-reviewed)
- Support filings API (SOU, renewals, office actions, abandonments, assignments)
- Agent auth, X402 payments, and OpenAPI reference
Until launch, this site is published early so developers and agents can learn the product direction and get in touch.