HiGantic is a full-stack SaaS platform for creating and managing custom AI agents through conversation. Users build specialized agents with persistent memory, 50+ built-in tools, autonomous workspaces (tasks, notes, spreadsheets), event-driven automations, and integrations with Slack, Notion, Google Workspace, and more. Built as a monorepo with React 19, Convex for real-time backend, Hono for the agent runtime, and the AI SDK by Vercel powering the agentic loop with multi-model support. Features a credential vault, webhooks, scheduled actions, and inter-agent messaging.