Party

Build in the open.Together.

Your whole team now builds products in one place, alongside fleets of agents.

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Download for iOSAndroid coming soon
Example conversation: Priya (Product Manager) asks Research: People are dropping out of setup. Where are they getting stuck? Research: The invite step blocks setup. Customers want to try the product before bringing in their team. Priya (Product Manager): Can we get a small fix out this week? Amara (Engineering Lead): Let them skip invites and explore first. Tomás (Backend Engineer): Keep invites easy to find after setup. Engineer: I’ll make invites optional, keep them in the sidebar, and share a preview for the team. The team discusses the Preview. Amara clicked Open PR.

Loved by thousands of builders at top companies

The shift

Less coordinating the work.More moving it forward.

Shared context

Stay close to the work.

Keep the spec, decisions, and live Preview in one thread. Leave feedback while agents work.

Human checkpoints

Choose your checkpoints.

Let Flows carry work between agents. Your team decides where to step in.

Cost visibility

Keep costs in view.

Start with an estimate, set a project budget, and follow spend as it happens.

One build, start to finish

From a rough idea to deployed

Follow one onboarding improvement through Plan, Build, and Review. People make the calls; agents carry the work forward.

  1. Plan

    Turn the conversation into a spec

    Shape the request together. The Product agent clarifies the details and turns your decisions into acceptance criteria.

    Shared decisions

    • Engineering LeadAmara

      Signups stall at the provider step. Can we simplify it?

    • Product ManagerPriya

      Choose a default model. Move API keys into settings.

    • ProductAgent

      One setup screen. Four acceptance criteria. Spec ready.

    Your checkpoint

    Finalize the spec

  2. Build

    Watch the change take shape

    Agents plan and build in milestones. Try the live Preview and leave feedback as the change takes shape.

    Live feedback

    • ArchitectAgent

      Three milestones. Start by collapsing the provider step.

    • EngineerAgent

      First milestone in Preview: setup is now one screen.

    • Product ManagerPriya

      Much better. Let’s make the copy less technical.

    Your checkpoint

    Try the Preview. Open the PR.

  3. Review

    Check the work against the promise

    Product checks the spec; an Auditor reviews the code. Agents fix the issues and re-check the work. Your team makes the final call.

    Checks & fixes

    • ProductAgent

      All four acceptance criteria are met.

    • AuditorAgent

      Error states fixed and re-reviewed. Checks green. PR ready.

    • Product ManagerPriya

      I’ve checked the Preview. Let’s ship it.

    Your checkpoint

    Approve the PR. Ship the change.

Your team, your Flow. Choose the agents and checkpoints that fit your work. Plan, Build, and Review are guidelines, not rails.

The platform

Built for your team.
Ready for your agents.

Your conversations, your tools, your boundaries. One foundation for everything you build together.

Connected conversations

Keep the conversation moving.

Start from Slack or Teams. Replies and results stay connected to the Party session, where your team already talks.

Shared oversight

Know where you’re needed.

Follow parallel sessions in one place. See which work needs your input and where to make the next decision.

Agent flexibility

The right stack for every agent.

Choose a harness and model for each agent. Use managed access or bring your team’s own credentials and API keys to any supported harness.

Environments & isolation

Your agents. Your boundaries.

Environments define the runtime and boundaries for each session. Tenant-level sandboxing adds another layer of isolation around your team’s work.

Enterprise: ask about self-hosting, network policies, and local models through OpenCode.

Pricing

Start free.
Grow at your pace.

One plan for your whole team. No per-seat fees.

Monthly pricing in USD

Free

A place to try your first ideas.

$0/ month

For your whole team

Try Free
  • $5 in credits, one time
  • 2 sessions at once
  • 4 session-hours per day
  • Discord support

Starter

For everyday builds and side projects.

$20/ month

For your whole team

Get Started With Starter
  • $20 in credits each month
  • 10 sessions at once
  • 20 session-hours per day
  • Email support

Pro

For teams building in parallel.

$200/ month

For your whole team

Get Started With Pro
  • $400 in credits each month
  • Unlimited sessions at once
  • Unlimited session-hours per day
  • Priority email and Slack support

Enterprise

For organizations with custom deployment and support needs.

  • Managed or self-hosted deployment
  • OpenCode with local models
  • Business associate agreement (BAA) support
  • 24/7 support from a dedicated forward-deployed engineer

Custom pricing

Contact Sales

Bring your own keys

Use your team’s credentials or API keys with any supported harness, including AWS Bedrock through Claude Code, and OpenRouter or Fireworks through OpenCode.

Credits fund usage

Free credits are granted once; Starter and Pro include credits each month. Add funds in Billing when you need more.

Session-hours measure runtime

Two sessions running for an hour use two session-hours. The session limit is how many can run at once. Credits are separate from these limits.

Your Next Product

Bring the idea.
Build it with your team.

Start with a real request on the Free plan.

Start Building For Free
Download For Mac

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Download for iOSAndroid coming soon