Every recorded vote, every member, every bill and every committee vote the legislature has published, in tables you can search, sort and filter. Most rows link to a page here, and every page back to the legislature's own record. The 2011 to 2017 House sheets are scans, so those rows carry the Clerk's printed tally but no names, and are marked as such. Every table is also a CSV, and what is in each column says what the columns hold.
Roll calls: the House's from the Clerk's printed sheets, reconciled to the printed tally; the Senate's from the legislature's data feed, dated from each bill's history. Sessions are General Courts: the 194th sits 2025 to 2026. House sheets before 2018 are scans and are not yet read; the Senate feed has no roll calls for 2011 to 2012. Committee vote counts are as the committee printed them. Nothing here ranks anyone.