Plain

Plain is an AI support infrastructure platform that unifies customer conversations across channels like Slack, Microsoft Teams, Discord, email, and chat into a single workspace. It solves the problem of scattered support interactions and insights by providing a composable, API-first system. The platform targets B2B teams, including support, operations, and engineering roles, in companies of various sizes. It is positioned as a flexible alternative to traditional support tools, offering no-code or all-code customization and the ability to orchestrate AI agents alongside human teammates.

Key features

• Consolidate Slack, Teams, Discord, email, chat
• AI assistant for research, triage, resolution
• Run multiple AI agents with human control
• Automate routing, notifications, and actions
• Learn from support with insights
• Extend and customize via API
• Connect external systems like Linear, PagerDuty
• AI-driven thread routing by context
• Auto-triage with labels and urgency detection
• Sidekick drafts replies and finds answers
• Detect trends and churn risks
• Summaries and instant context on threads