Plain
AI-powered B2B customer support infrastructure unifying Slack, Teams, email, and code-aware search via Cursor.
About
Plain is a customer support platform for B2B teams. They describe it as "AI support infrastructure that enables B2B teams to build anything, no-code or all-code," with the promise that everything visible in the product is also available programmatically through their API.
Their AI agent, called Ari, handles routine queries. A separate Cursor-integrated lookup tool answers code-aware questions. The rest of the surface is an assistant for support staff, automated trend detection, and a help center.
The customer page leans heavily into developer-tool companies. Raycast and Prisma are on it, among others. Operates as Not Just Tickets Ltd.