Castwyn Information

Castwyn is an AI content engine that turns one idea into a week of platform-native content, then schedules and publishes it across every major social network. Built for creators, founders, and teams, Castwyn transforms articles, videos, podcasts, PDFs, and simple ideas into ready-to-publish posts for X, LinkedIn, Instagram, TikTok, YouTube, Threads, Facebook, Reddit, and Bluesky. Unlike tools that charge per post or resell AI credits, Castwyn offers flat pricing and lets users bring their own AI keys and social accounts. That means more control, lower costs, and full ownership of your data. Castwyn includes: • Multi-platform publishing across 9+ networks • Platform-specific writing styles and formatting • AI-optimized scheduling based on engagement data • Content repurposing from videos, articles, podcasts, and PDFs • Carousels, quote cards, and faceless video generation • API and MCP access for custom agents and automation workflows One idea in. A week of posts out.