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Open Data Portal (ODP) API (Version 2.3)

Published by Open Data Portal Team | Department of Commerce | Metadata Last Checked: February 03, 2026 | Last Modified: 2025-08-28
The Open Data Portal (ODP) API allows you to access USPTO data at no cost – with several ways to do it. The ODP API uses HTTP, GET, and POST requests to return responses in JSON format. ODP also provides REST APIs, which provide rich search capabilities and allow users to retrieve patent application data, continuity data, documents, patent term adjustment data, and much more. You must get an API Key to use the ODP API. Note: The data products on our website allow users to download data without the need for an API key. Using ODP APIs will require an API key.

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