Trademark search API for agencies and platforms
Short answer
The Trademarking search API takes a name, offices and classes and returns a registration likelihood, ranked conflicts with similarity and official record links, recommended Nice classes and an estimated official fee, as JSON. It is included in the Agency plan.
- 10,000 API calls per billing period on the Agency plan.
- Token authentication; keys are managed in the workspace.
- The same data and scoring as the web app.
What you can build
- Naming tools that screen generated names before showing them to a client.
- Brand and e-commerce platforms that warn sellers about risky names.
- Law firm intake forms that pre-screen a mark before the first call.
- Internal dashboards that pull watch alerts into your own tools.
A typical request and response
You send the name, the offices (for example USPTO and EUIPO) and optionally the classes. The response contains the likelihood band and percentage, up to the configured number of conflicts with office, number, status, classes and similarity, the recommended classes and a fee estimate per office with the currency and the source of the fee.
The scoring is the same one behind the trademark availability search in the app.
Limits and fair use
Calls count as consumption within your billing period, so deleting results does not return calls. Responses are estimates from public registry data, not legal advice, and should be shown to your users with that note. For portfolio work alongside the API, see trademark management software.
Frequently asked questions
- Which plan includes the API?
- The Agency plan, at 999 USD per month or 499 USD per month billed yearly, with 10,000 calls per period.
- Can I show results under my own brand?
- Yes. The Agency plan includes white label, so results and reports can carry your brand.
- Which offices does the API cover?
- The same offices as the app: USPTO, EUIPO, UK IPO, WIPO Madrid, CIPO, IP Australia, UPRP and IP India.
- Is there a sandbox?
- You can call the API with your keys from the start; every call counts toward the period limit.
Keep reading
General information as of 2026, not legal advice. Trademarking is not a law firm. Official fees are set by each office and paid to the office directly.