Party

Secure multiplayer software factory for your whole team in minutes

2.4Score#532 of 999 agents#22 of 40 in Software engineer

Why it ranks #532

Party, an AI software engineer from YC S24, ranks #532 of 999 AI agents and #22 of 40 in Software engineer, with a score of 2.4 of 10. Data as of 3 Oct 2026.

The score adds four parts, each 0 to 10, by weight. Every point comes from public evidence. How scoring works ·

Proof 2 × 30% 0.6
Scale 3 × 30% 0.9
Momentum 0 × 25% 0.0
Autonomy 6 × 15% 0.9
= 2.4

Proof
Do customers use it? 30% of the score
2
Claims a customer result.
- +2
  A customer result
  “Maitai has prevented this from happening 14 times.”
  Launch YC post · 22 Aug 2024
Not found: revenue or growth (+4), named customers (+3), a customer count (+2), work done at scale (+2)
Scale
Is there a real company behind it? 30% of the score
3
8 people.
- +3
  8 people on its YC page5 to 9 people
Not found: funding round in its news (+3)
Momentum
Is it shipping and growing now? 25% of the score
0
Nothing new in the last 6 months.
Not found: launch YC post in the last 6 months (+3), open roles on YC (+2), new traction claim in the last 6 months (+2), funding news in the last year (+2), a batch in the last year (it is YC Summer 2024) (+1)
Autonomy
How much of the job does it do on its own? 15% of the score
6
Supervised agent: takes actions in other systems; a person approves key steps.
- +6
  Level 2 of 4: Supervised agentTakes actions in other systems; a person approves key steps.
What the model read
- Acts in other systems: 48% likely
- Finishes whole tasks: 31% likely
- Calls itself an agent: 92% likely
- Level 1 from the model's reading of its pages; the evidence review found, with quotes, that its AI acts in the work, so the level is 2
Level 2: Takes actions in other systems; a person approves key steps.

About Party

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, 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.