# Gesso

> The AI workspace for client calls. Gesso listens to client conversations through your browser and generates prototypes for websites, apps, tools, and more. It also creates PRDs, sitemaps, user journeys, personas, and decision logs live during calls. By the time the call ends, everyone is aligned and you have validated deliverables to build from.

Gesso is built for freelance web developers and designers, small-to-mid web design and digital agencies, and product teams who run client discovery and review calls. The core insight: clients cannot articulate what they want until they see what they do not want. Gesso surfaces real preferences through live reaction to visual artifacts, eliminating the 2-7 day gap between discovery and first prototype review.

No bot joins the call. Gesso listens through the browser using system audio capture. The designer controls when to share their screen and reveal what Gesso has built.

Gesso also features the Canvas a collaborative design tool to brainstorm, build site maps, draw, or map processes on calls in real time. Everything from the Canvas carries over to inform the prototype (website/app/tool) and PRD. With Gesso's Canvas, nothing gets lost or goes unused... unlike other collaborative whiteboarding tools which sit untouched after the call.

## Core pages

- [Homepage](https://gesso.so/): What Gesso is, what it builds, pricing, and how it fits a designer's workflow
- [Demo](https://gesso.so/demo): Gesso running during a live client call

## What Gesso generates

Six deliverable types, all produced live during the call and traceable to the exact moment each decision was made:

- Prototypes: multi-screen, interactive, branded with real stock imagery
- PRDs: screen-anchored build specs with full provenance
- Sitemaps: visual page hierarchies from discussed flow structure
- User journeys: stage-by-stage maps per persona with actions, thoughts, pain points
- Personas: user cards with goals, behaviors, and demographics
- Decision logs: every decision, assumption, and open question with source attribution

## Key systems

- The Cortex: the project's living memory, tracking validated preferences, rejections, and locked decisions across sessions, with full provenance
- Canvas: real-time collaborative workspace with arenas, pages, and freehand drawing
- Brand Kits: extracted from a screenshot or generated to evoke a feeling
- Gesso MCP Server: exposes Gesso context to Cursor, Claude Code, and other MCP-compatible tools

## Who Gesso is for

- Freelance designers running discovery calls
- 2 to 15 person web design and digital agencies
- Solo UX consultants
- Product managers and UX teams aligning stakeholders on digital builds

## Pricing

- Starter: free, 2 hours of session time per month, all six deliverables
- Basic: $24.99 per user per month, 10 hours of session time
- Business: $49.99 per user per month, 20 hours, plus SSO, governance, admin controls, audit logs

## Browser support

Chrome and Edge only. Gesso requires Chromium-based browsers for system audio capture. Firefox and Safari do not support the required audio APIs.

## Company

Gesso AI, Inc. is a Delaware C-Corp founded by Josh Rasberry in 2025. Domain: gesso.so. Contact: josh@gesso.so.