FreeTrademarkAPI docs · Launching Q1 2027

OpenAPI reference

OpenAPI and the endpoint list are coming Q1 2027. This page is a placeholder until launch. There are no live paths, sandbox URLs, or example hosts to call yet.

Planned surface (not yet published):

  • Free knockout search API (US, mark + class, API key)
  • New application filing API (attorney-reviewed)
  • Support filings API
  • Agent auth and X402 payment details

Until then, read the docs hub and email hello@markavo.com.