Revuloop runs PMF, beta, feature-request, and churn surveys with adaptive AI follow-ups: turning vague user comments into themed, ranked product signal. Ships an Embed SDK (@revuloop/embed), a 99+ endpoint REST API, HMAC-signed webhooks, and native Slack, Zendesk, Notion, Mailchimp, Zapier, Segment, and Make integrations. An MCP server with 30+ tools lets Claude, Cursor, Windsurf, and n8n run research from a natural-language prompt. Free plan includes unlimited active surveys, 150 responses/month, and 200 AI tokens.