Summary
Y Combinator sits down with Eddie Kim, co-founder and head of technology at Gusto, to discuss the launch of Gusto Co-founder — a new AI agent product designed to fully automate recurring business operations for small businesses. Gusto, a YC Winter 2012 alumnus, now serves over 500,000 small businesses in the US and recently crossed $1 billion in annual revenue, giving the product an immediate large-scale distribution runway.
Gusto Co-founder targets the gap between AI as a ‘glorified search engine’ and the agentic automation most small business owners have never been able to access. The product integrates with Gusto’s existing payroll, HR, time-tracking, and scheduling infrastructure to propose and then autonomously execute end-to-end workflows — running payroll from raw exports, approving timesheets, or even emailing customers when weather threatens outdoor bookings — with the owner approving a final summary via SMS or Slack rather than logging in at all.
Kim traces the product’s origin to a missed flight where he spent eight hours setting up an open-source computer-use agent on a Mac Mini. That prototype convinced him that agentic workflows needed to be surfaced through existing, trusted business context rather than a blank canvas. The interview covers the product’s cron-versus-prompt scheduling architecture, how Gusto avoids the ‘blank canvas problem’ by pre-populating task suggestions, and why small business owners — unlike enterprise IT buyers — respond immediately to demos showing time saved on weekly recurring tasks they already hate doing.
📺 Source: Y Combinator · Published July 08, 2026
🏷️ Format: Interview
