Overview
Party is the secure workspace for your team and agents to build together, in the open. Agent Flows handle 95% of the work and your team can see it all happen and step in when needed to steer. It's built for teams and collaboration first, but caters to the solo builder as well. Use any harness/model - your keys or ours. Cost observability. Memory. Dual-level session sandboxing.
Slack/Teams are comm-first with agents as second-class citizens. Party is work-first and the communication happens where the work is being done. Party is for teams who want to build better and faster than their competition.
Founders & team
Previously Maitai
Christian DalSanto
Founder/CEOFounder and CEO @ Maitai. Previous co-founder at Yew, led the AI engineering org at Presto (S10), and Big Bets team at Earnin. I spent most of my career getting AI applications from skunkworks to production, and then scaling them from there.
Founded 2024 · Source ↗
Sources & observations
Y Combinator
Profile depthenriched profile
Website observationwebsite reachable
Last website check2026-11-11
Location · source statedSan Francisco, CA, USA
Pricing evidenceA pricing page was detected
Maturity: Not assessed · 4 of 6 areas documented
Source-based assessment · automated evidence rules
The homepage contains prelaunch or closure language; availability needs review.
Maturity is an evidence-based assessment, not a success rating. It may understate the current stage where evidence is limited. Coverage records documented areas, not a complete or independently audited company history.
Stage definitionsindependent websitesource corroborationreachable websitedescriptive evidencesourced peoplesourced founding yearpricing page observedrecent publishing observed