Skip to content

USPTO API Catalog

The USPTO API Catalog provides developers with access to various APIs related to intellectual property. It includes information about registering, searching, and managing patents and trademarks, allowing for easy integration of government data into applications.

Open documentation ↗
AuthHTTPSCORSGovernment

Verified 4 days ago: 97% uptime

API key

Unconfirmed

HTTPS

Supported

Browser calls

Yes, CORS enabled

Status

Live · 94/100

What our checks found

Health score
94/100
Reliability
97%
Average latency
1950ms

Last checked 2026-09-18. Measured independently, not self-reported by the provider.

How to call it

A starting template for USPTO API Catalog. Replace ENDPOINT with the path from the official documentation, which we link above rather than guess at.

# Authentication requirement is unconfirmed. Check the documentation before relying on this.
curl -s "https://developer.uspto.gov/ENDPOINT" \
  -H "Authorization: Bearer YOUR_TOKEN" \
  -H "Accept: application/json"

Where this listing comes from

Aggregated from one public source (freepublicapis), then normalised and checked by us. If something here is wrong, tell us and we will correct it.

Other Government APIs

See all 137

Bidledger

Government

Every open public tender in the European Union, rebuilt daily from the official TED data

No keyCORSHTTPS

Verified 4 days ago: 100% uptime

View Details

Brazil

Government

Community driven API for Brazil Public Data

No keyCORSHTTPS

Verified 4 days ago: 100% uptime

View Details

EditalMD

Government

Brazilian public procurement (PNCP) notices as Markdown with deadlines and requirements

No keyCORSHTTPS

Verified 4 days ago: 100% uptime

View Details

Indian Mandi Prices

Government

Free, keyless daily wholesale mandi prices for 5 Indian states, sourced from data.gov.in

No keyCORSHTTPS

Verified 4 days ago: 100% uptime

View Details

USPTO API Catalog — common questions

Answered from what our own scheduled checks found, not from the provider's marketing.

Is USPTO API Catalog free to use?

USPTO API Catalog is listed in our free catalogue, but it requires some form of authentication, so you will need to register before your first call. Providers frequently reserve higher limits and commercial use for paid plans.

Does USPTO API Catalog need an API key?

USPTO API Catalog requires some form of authentication. Check the provider's documentation for which scheme it expects.

Can I call USPTO API Catalog from browser JavaScript?

Yes. USPTO API Catalog returned CORS headers when we checked it, so a browser will let your page read the response. You can fetch it directly from client-side JavaScript with no proxy and no backend.

Is USPTO API Catalog still working?

Yes, as of 2026-09-18. Our automated check reached USPTO API Catalog and recorded a 97% reliability score with a median response time of 1950 ms. We re-check on a schedule, and this page updates with the result.

Is USPTO API Catalog available over HTTPS?

Yes. USPTO API Catalog serves over HTTPS, so you can call it from a secure page without triggering a mixed-content block.