Growth Gems MCP Beta
Ask your AI. Get answers from vetted growth experts.
Every insight (gem) was picked by Sylvain Gauchet from 430+ talks, webinars and panels by people who actually grew apps, so you don't have to check every claim. And when you want to, the source is one click away.
When should an early-stage app show the paywall?
Using Growth Gems: search_gems
Consider your business lifecycle stage when deciding paywall placement. "And so we need to be thinking, like, what is, what point in my business life cycle am I, number one, but also how mature is my product?" Hannah Parvaz, Activating Users to Drive App Revenue Growth, 21:35
If your install-to-signup rate is around 50% or lower, show the paywall before requiring signup. "If you have a 50% install to sign up, you better show the paywall before sign up." Jake Mor, Superwall's Jake Mor: Distribution By NewForm E04, 15:44
Consider testing a paywall during onboarding even if it seems counterintuitive. "They saw an increase in sales, obviously, but an increase in retention as well." Steve P. Young, Breaking Through A Competitive App Category, 37:30
Ask for the full gems to see each one in full.
How are subscription apps testing trial length? Show sources.
Using Growth Gems: search_gems
Test paid intro offers alongside free trials by offering users choice between a free 7-day trial and a paid 30-day trial. "Your initial conversion rate goes up, but long-term, your trial to pay conversion rate goes up significantly over time because you're giving users choice." Nick Godwin, The Secret to App Conversion, 25:58 (Growth Gems #133)
AI apps face a unique trial design challenge: longer trials convert better but can be financially catastrophic when power users rack up massive compute costs and then churn. "...if you give away 30 days of free AI feature usage and you have whales racking up massive compute costs without paying you a dime and then they churn, then that's not a sustainable business." Phil Carter, The AI Growth Playbook for Subscription Apps, 55:44 (Growth Gems #147)
For utility apps, removing the free trial and offering a paid weekly subscription can outperform a yearly subscription with a free trial. "What we were seeing was people were activating trials but not paying us." Steve P. Young, Growth hack or black hat? Questionable app growth strategies, 25:15
Ask for the full gems to see each one in full.
What has Thomas Petit said about Meta ads?
Using Growth Gems: search_experts, search_gems
Meta optimizes toward exactly the event you ask for, and it will fill that event with the cheapest users who won't go further. "So, what do they do when you're going to ask for a free trial? They're going to give you the free trial that doesn't become a paid converter." Thomas Petit, You're paying Meta to find users who will never convert, 12:33
Signal engineering is growth stage-dependent. "And I've seen a lot of early-stage founders apply stuff this and there is a lot of over-engineering that is actually counterproductive." Thomas Petit, You're paying Meta to find users who will never convert, 14:34 (top gem of Growth Gems #148)
For zero-to-5K stage apps, use TikTok organic as your free angle-discovery lab, then put paid money behind what works. "You can have a fresh account and publish 50 crap videos, and there's a good one, and TikTok is going to show it." Thomas Petit, S07, E30: MDM Mailbag #8, 24:59
Ask for the full gems to see each one in full.
Real answers from the Growth Gems archive, written in Claude. Links open the talk at the moment of the quote.
Why it's different
No slop. Just gems.
No more telling your AI where to look, or wondering where the advice comes from and whether it's any good.
Curated, not scraped
Answers are built from 2,600+ gems, each a key point from a talk with the expert's own words. Sylvain picked and reviewed every one from 430+ webinars, podcasts and panels over 6 years. No vendor fluff, no recycled listicles.
Cited, just in case
Every answer names the expert and links to the moment they said it, so the source is there when you want it.
Stage-aware
Every gem is tagged by topic, growth stage (early, growth, scaled) and app category, so your AI can answer for your situation: "What works for early-stage health apps?" Plus Sylvain's take on many gems.
What you can ask
Ask it like you'd ask a growth advisor.
Who picks the gems
Sylvain Gauchet
Growth consultant, Fractional Head of Growth at Reading.com (previously Director of Revenue Strategy at Babbel).
Mining growth talks since 2020: 149 editions of the Growth Gems newsletter, read by 11,100+ growth practitioners.
"Such an incredible resource that you're creating. Absolutely love it and always inspired by you"
Hannah ParvazFounder, Aperture"Sylvain is a pro and gems he finds are really gems. Treat yourself, sign up"
Anton TatarynovichASO Consultant at PhitureHow it works
Add it once. Ask anytime.
MCP is the standard way to plug a data source into your AI assistant. You add Growth Gems once; your AI looks things up in it when you ask.
- Only gems Sylvain reviewed are returned.
- Quotes are short excerpts from public talks, always attributed. Full transcripts are never shared.
- During the beta, your questions are logged with your access key (not your AI's answers), to improve results and find edition ideas.
Setup
Beta testers get a personal access key. Tested with Claude; other MCP-compatible AI tools should work.
Claude desktop app or claude.ai
- Open Settings > Connectors and choose Add custom connector.
- Name:
Growth Gems - URL:
https://mcp.growthgems.co/mcp - Click Add, then Connect. A Growth Gems page opens: paste your access key.
Claude Code
claude mcp add --transport http growth-gems https://mcp.growthgems.co/mcp \ --header "Authorization: Bearer YOUR_ACCESS_KEY"
Then try: "When should an early-stage app show the paywall? Use Growth Gems." To send feedback, tell your AI: "Tell Sylvain this gem is outdated."
FAQ
What is MCP?
The Model Context Protocol, an open standard that lets AI assistants use outside tools and data. Growth Gems is one of those tools.
Which AI tools work?
Tested with Claude (desktop app, claude.ai and Claude Code). Other AI tools that support remote MCP servers should work too.
Does it cost anything?
The beta is free.
Are my questions shared?
No. During the beta, Sylvain sees which questions were asked with your key, to improve the archive. Your AI's answers are not logged, and nothing is shared with anyone else.
Does the AI make things up?
Your AI writes the answer, so it can. That's why every point carries a verbatim quote and a link to the source: you can check anything in one click.
Who picks the gems?
Sylvain Gauchet, growth consultant and the person behind the Growth Gems newsletter, who has been mining growth talks since 2020.
Want to try it?
The beta is open to a small group. Tell me a bit about how you'd use it.
