Open Data - Measure, Committee, and Legislator Information Available to the Public

For reference assistance or questions about the legislature, legislative process, or other government agencies, please email Leg.Helpdesk@oregonlegislature.gov or call 1-800-332-2313.

The Oregon Legislature freely provides the legislative measure, committee, and legislative member data used in the Oregon Legislative Information System (OLIS) to the public in an Open Data Protocol (OData) API. Oregon's Legislative OData API provides complete and up-to-date session information. OData is an open protocol that allows the creation and consumption of queryable and interoperable RESTful APIs in a simple and standard way. The legislature's data model outlining exactly what data is available can be found here (opens in a new tab).

• Access the Legislative OData API - Base Endpoint
• Access the Legislative OData API Metadata
• Read the Legislative OData API Acceptable Use Agreement
• View the Legislative OData data model
• Learn more about using the OData protocol​