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Plainbuilt

Try the agents

Every agent here runs in two modes. Simulation is free and needs no sign-in: a scripted, deterministic replay where you pick what the caller wants, or type the opening line in your own words, watch the agent work step by step, and see how it is built, intents, tools, and handoffs. Nothing is sent to a model. A sign-up, by email link, adds a dashboard where you save runs, edit an agent's details in the builder, download its spec pack, and chat in text with any agent on your own OpenAI or Anthropic key. Live mode, a real call to the demo agent on your own API key plus the SMS and email agents, opens in a later release.

What you can try without an account

  • Scripted simulations for every industry, on the service and product pages, where you can type the opening line in your own words
  • A read-only view of how each agent is built, its intents, tools, and handoffs
  • The guides, with a formatted pack link on the page and by email

What needs a sign-up

  • Saving a simulation run
  • Editing an agent's details in the builder and saving the build
  • Downloading the agent spec pack and the integration checklist
  • A typed chat with any of the eight agents on your own OpenAI or Anthropic key
  • A live call on your own key and the SMS and email agents, once live mode opens

How keys are handled

Your API key is held in memory for the session only. It is never written to a database or a log. Details in the demo terms.

Read the demo terms

Pick an industry

  • Contractors

    Emergency triage, instant booking, and commercial bids, answered in your brand voice.

  • Field services

    The recurring-revenue lifecycle, plus a review agent that defends your name across four platforms.

  • Logistics

    Automated check-calls, shipper status updates, and a copilot that proposes load assignments.

  • Real estate

    Three agents qualify buyers, draft compliance-aware replies, and close on the call.

  • Healthcare

    HIPAA-aware scheduling, reminders, and portal triage, with clinical escalation in 30 seconds.

  • Manufacturing

    RFQ quotes drafted in minutes, live order status, and role-based portal access.

Or just call the line

Call it. An AI answers. That's the demo.

Number coming soon

Sign up

Enter your email and we send a link that signs you in. No password.

Already have an account? Enter the same email.

Ready when you are.

Book a 30-minute working sessionCall the demo line

Or write to us