Make your AI assistant actually good at content
Connect Sandcastles to Claude, ChatGPT, Grok, Muse, or any assistant that supports MCP. Your assistant gets live short-form data, deep video breakdowns and niche-level strategy, so it stops guessing and starts giving you ideas worth filming.
- Claude
- ChatGPT
- Codex
- Grok
- Meta Muse
- Hermes
- Perplexity
- OpenClaw
- Manual setup
- 5 more
AI assistants make slop without good data
Ask any assistant what's working in your niche and you get the same recycled advice everyone else gets. It can't see what's actually performing, so it guesses.
Here are some hook strategies that tend to perform well on short-form video:
- Open with a question, like "Did you know…?"
- Make a bold claim in the first three seconds
- Create curiosity: "Wait until the end…"
- Use trending audio and on-screen text
Consistency is key, so keep testing!
Across the 8 creators you track, over the last 30 days:
- 18.8xCase-study hooks are winning. @rpn's "I put 5 AI models to the test…" hit 2.7M views.
- 12.5xContrarian hooks are close behind. @askcatgpt's take on AI CEOs agreeing hit 2.4M views.
- 2.1xSecret-reveal hooks are the most common, and now the weakest. Your niche is saturated with them.
Not just data. Strategy your AI can act on.
Sandcastles is the connector between your assistant and what's actually working. It doesn't hand over a spreadsheet of views. It hands over the work of a content strategist.
- 1Live performance data
Millions of Reels, TikToks and Shorts, with views, engagement and an outlier score that shows how each one did against its creator's usual.
@rpn · 2.7M views · 10.2x his usual - 2Deep video analysis
Every outlier broken down: the hook, the format, the story structure and the angle that made it spread.
Hook: I put [number] [category] to the test… - 3Niche-level insight
Patterns aggregated across the creators you track, so your assistant sees what's rising in your niche, not one lucky video.
Case-study hooks: 18.8x · Secret reveals: saturated - 4Strategies to act on
Ranked recommendations your assistant can turn straight into ideas and scripts: what to make next, and how to make it yours.
Next video: a 5-tool test. Highest momentum.
Ask it anything about what's working
Ask in plain English, in whichever assistant you use. Every answer comes from live data on your niche.
- Formats
“What are the top-performing formats in my niche over the last 2 weeks?”
You getFormats ranked by how far they beat their creators' usual, with examples. - Hooks
“What hook strategies are outperforming for my niche?”
You getThe hook patterns that are working, as fill-in-the-blank formulas you can reuse. - Competitors
“How is Kane Kallaway growing his channel?”
You getA brief on what a creator has been posting, what's working and why. - Ideas
“What should my next video be about?”
You getA ranked shortlist of topics with momentum, each backed by real examples. - Topics
“Which topics are trending in my niche right now?”
You getThe themes gaining traction, clustered and cited with the videos behind them. - Breakdowns
“Why did this video go viral? [paste a link]”
You getThe full breakdown: hook, structure, format and the angle that made it spread. - Discovery
“Find creators who make short-form content about AI tools.”
You getChannels that fit the niche, grouped, with why each one is worth watching. - Watchlist
“Who else should I be tracking, based on my watchlist?”
You getNew creators to follow, recommended from the ones you already track. - Scripts
“Turn the best outlier from this week into a script for my channel.”
You getA script built on a proven hook and format, adapted to your niche.
Bring it to the assistant you already use
One Sandcastles account works with all of them, and with any other assistant that supports MCP. Included on Pro, Visionary and Titan.
- Add to ClaudeClaudeClaude · Claude Code · Claude Cowork
- Add to ChatGPTChatGPTChatGPT
- Add to CodexCodexCodex app · Codex CLI
- Setup guideGrokGrok
- Setup guideMeta MuseMuse
- Setup guideHermesHermes Agent
- Setup guidePerplexityPerplexity · Perplexity Computer
- Setup guideOpenClawOpenClaw
- Setup guideAntigravityGoogle Antigravity
- Setup guideGrok BotGrok Bot
- Setup guideGeminiGemini
- Setup guideReplitReplit Agent
- Setup guideCursorCursor
- Setup guideAny MCP clientPaste the server URL. Works with any assistant that supports MCP.
Questions
Claude (including Claude Code and Claude Cowork), ChatGPT, Codex, Grok, Meta Muse, Hermes, Perplexity, OpenClaw, Antigravity, Grok Bot, Gemini, Replit and Cursor, each with a one-click or guided setup. Any other assistant that supports MCP can connect too: just paste in the server URL.
Pro, Visionary and Titan. If you're on Starter, you can upgrade under Settings → Subscription.
Pick your assistant above. Claude installs straight from the Claude directory, ChatGPT and Codex install from the ChatGPT plugin directory, and every other assistant has a step-by-step setup guide. For anything else that supports MCP, add a custom connector with the server URL https://mcp.sandcastles.ai/. Either way, you sign in with your Sandcastles account once and you're done.
Yes, as long as it supports MCP. Add a custom connector or MCP server in its settings, paste https://mcp.sandcastles.ai/, and sign in with your Sandcastles account when it asks.
The same research you see in Sandcastles: the videos from creators you track, outlier scores, full video breakdowns, the hooks, formats and topics working in your niche, channel recaps and recommendations, all for your current workspace.
No. Asking about videos, creators, hooks, formats and topics is free. Analyzing a video that isn't in your library yet uses one analysis credit, the same as in the app.
Email support@sandcastles.ai and we'll get you sorted.