OpenCongress is a free, nonpartisan platform designed to make congressional information accessible to everyone. We believe that understanding what happens in Congress shouldn't require specialized knowledge or expensive subscriptions.

Our mission is simple: provide clear, accurate, and timely information about congressional activity — from roll-call votes to legislation — without editorial bias or political spin.

This section covers the U.S. Congress — the House of Representatives and the Senate — including roll-call votes, bills and resolutions, members, committees, and presidential nominations.

• Free — core access at no cost
• Nonpartisan — fact-based information
• Open — source code available

OpenCongress brings the full picture of federal legislative activity into one place:

• Roll-call votes — every recorded vote in the House and Senate
• Legislation — bills, resolutions, and their full text
• Member information — profiles, committee assignments, and campaign finance
• Committee hearings — schedules, witnesses, and related legislation
• Nominations — presidential nominations and confirmation proceedings
• Floor schedules — House and Senate floor activity and expected votes

All congressional data on OpenCongress comes directly from official government sources. We don't filter, editorialize, or modify the data in any way.

We sync data from Congress.gov on a regular schedule so you always have the latest information. Different types of data are updated at different frequencies based on how often they change.

We use AI to help make congressional information more accessible. All AI-generated content is clearly labeled so you always know what you're reading.

What's AI-generated

• Bill summaries — plain-English explanations of what legislation does
• Vote summaries — context and analysis of roll-call votes
• Daily & weekly summaries — recaps and previews of congressional activity
• Member bios — brief biographical information
• Committee & hearing summaries — overviews of committee work and hearing proceedings
• Nomination summaries — context on presidential nominations

AI summaries are generated using Google's Gemini, chosen for its speed and accuracy with factual content, and every summary passes an automated quality-control check before it's published.

OpenCongress is built to respect your privacy. We don't sell your data, run ads, or take funding from political organizations.

• Encrypted — all connections are secured, and conversations with the AI chat are encrypted
• Anonymous mode — browse and ask questions without an account
• Yours to delete — you can delete your account and your data at any time
• Privacy-respecting analytics — no invasive third-party tracking

For the full details, see our Privacy Policy and Terms of Service.

OpenCongress is built with modern, reliable technology for a fast, accessible experience on any device — server-side rendering, optimized data loading, and screen-reader support.

It's also open source software. We believe transparency in civic technology starts with transparent code.

Ways to contribute

• Report bugs — found something broken? Let us know
• Suggest features — have an idea? We'd love to hear it
• Contribute code — pull requests are welcome