Web app

The Major web app at app.major.build is where you chat with the Platform Agent, open and edit what you’ve built, and manage your organization. Everything you can do from MCP or the CLI is also available here.

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Sidebar

Items you don’t have permission for are hidden. See Members & roles.

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Chat

Chat is the main way to work in Major. Describe what you want and the Platform Agent plans the work, asks for approval where needed, and builds it. See Platform Agent.

• Pinned and recent conversations appear in the sidebar on the Build page. Pin a conversation to keep it at the top; See all opens the full list.
• Chat with an agent by opening it from Agents, or by picking it when you start a chat. The chat runs with that agent’s prompt, connectors, skills, and tool permissions.
• Attachments and @ mentions work in every chat. See Editor.

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Search

Open the command palette from the search button at the top of the sidebar to jump to any app, agent, workflow, or conversation.

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Settings

Open your account menu at the bottom of the sidebar to reach two areas:

• Account settings - your profile, connected accounts, and personal tool permissions.
• Organization settings - members, groups and invites, billing and usage, environments, domains, branding, models, MCP, API tokens, and GitHub.

The same menu switches between organizations if you belong to more than one.