Setup Guide
Set up Truffle Journal with ChatGPT
What you're setting up
Truffle iPhone app
Where your journal lives
Truffle ChatGPT connection
Lets ChatGPT save to your journal
Install app
During beta, Truffle Journal is installed through TestFlight — Apple's platform for beta apps. If TestFlight isn't on your phone yet, install it from the App Store first.
TestFlight — Apple's app for beta software
Open this link on your iPhone:
https://testflight.apple.com/join/H36SnP9jTap Accept → Install → open Truffle Journal from your Home Screen.
Before moving on
- TestFlight is installed on your iPhone
- Truffle Journal is installed
- You can open the app
Create account
Inside the app, create your Truffle Journal account. You'll need this to log in from ChatGPT later.
1. Your name
Enter your name.
2. Your email
Enter your email, then verify it with the code sent to your inbox.
3. Your password
Set a password. Save it somewhere — you'll need it in Step 5.
Before moving on
- Account created
- Email verified
- Logged in to the app
- Password saved somewhere safe
Turn on Developer mode
Now switch to chatgpt.com on a desktop browser and sign in.
- 1.Click your profile icon + name in the bottom-left corner
- 2.Open Settings
- 3.Select "Apps" in the sidebar
- 4.Open Advanced settings
- 5.Turn Developer mode ON
Once it's on, you'll see a Create app button in the top-right corner of the Apps page.
Before moving on
- Signed in to chatgpt.com
- Developer mode is ON
- You can see the "Create app" button
Create ChatGPT app
Click Create app and fill in the form exactly like this:
Use Truffle Journal when the user wants to save something to their journal, review past entries, or search for something they wrote. If the user says "Add to Truffle Journal" (or asks to log/save a thought), create a new entry using add_memory. If they ask to see their entries—optionally by date or other filters—use list_memories. If they ask to find a specific past entry or topic, use search_memory.
https://mcp.trufflejournal.com/api/v1/mcpCheck "I understand and want to continue" → click Create.
Before moving on
- App name is exactly "Truffle Journal"
- MCP Server URL is copied exactly
- Authentication is set to OAuth
- Clicked "Create"
Log in
After clicking Create, ChatGPT will redirect you to a Truffle Journal login page.
Use the same email and password you created in Step 2 — the ones you use in the iPhone app.
Once logged in, the connection is live.
Before moving on
- Logged in with your Truffle Journal account
- Connection is confirmed
- ChatGPT can now save, list, and search your journal
Test it now
Open a new ChatGPT conversation and type exactly this:
"Add this to Truffle Journal: test note"Expected result
You should see a saved-entry preview card appear in ChatGPT — with the note title, tags, and a confirmation that it was saved to your journal.
Then open Truffle Journal on your iPhone — the entry should be there.
You're set up.
From now on, whenever something in a ChatGPT chat is worth keeping, say:
"Add to Truffle Journal"Before moving on
- Test note appeared in ChatGPT as a saved-entry card
- Entry is visible in the iPhone app
- Setup complete
If something isn't working
Most setup issues come from one small missed step. Work through these in order.
Still stuck?
Email us at hi@wonderfarm.app and include: a screenshot of the step where it failed, whether the problem happened in the iPhone app or ChatGPT, the exact error message you saw, and the email address you used for signup.