TrailVerse for ChatGPT
Live data for 470+ NPS parks and sites inside ChatGPT with Trailie — plus day-by-day trip planning for any US destination, including state parks, cities, and road trips.
Start chatWhat You Get
Your chat pulls from live National Park Service data — closures, weather, fees, and events — so answers reflect what's happening now, not old training data.
Plan a Trip
Day-by-day itineraries for any US destination — NPS parks, state parks, cities, and road trips — with constraint-aware planning and live context when available
Park Details
Live weather, alerts, entrance fees, hours, campgrounds, permits, activities, and Google Maps
Compare Parks
Side-by-side comparison of 2–4 parks on weather, crowds, fees, activities
Search Parks
Find parks by state, activity, or name across all NPS sites
Find Events
Ranger programs, guided tours, and special events with dates and locations
Multi-Turn Planning
Refine and extend plans across messages — "now add day 4" just works
Get Started in ChatGPT
No API keys or connectors to configure — install the app and start asking.
- 1Open the TrailVerse app on ChatGPT (sign in if prompted)
- 2Click Start chat on the app page
- 3Ask for a trip plan, park details, a comparison, or upcoming ranger events
- 4Planning a state park or want the full website experience? Continue on Trailie
Requires a ChatGPT account with access to third-party apps. Free to use — save trips and use the Plan Workspace on TrailVerse.com.
Start chatCan’t open the listing? Browse ChatGPT Apps and search TrailVerse, or type @TrailVerse in a new chat.
Prefer Claude? Install TrailVerse via MCP for Claude
Example Prompts
Once the app is open, try asking ChatGPT any of these.
“Plan a 5-day trip to Yellowstone in September with my fiancée”
“Is Going-to-the-Sun Road open right now?”
“Compare Zion and Grand Canyon for a family trip in June”
“What national parks are in Washington state?”
“Are there star parties at Bryce this month?”
“Plan a 3-day photography road trip through Utah’s parks”
Your Data, Transparently
What leaves ChatGPT
When you use a TrailVerse tool, ChatGPT sends the tool parameters (park name, state, dates, your trip request) to our server. For multi-turn trip planning, messages within that planning session are sent so follow-ups like “now add day 4” work. Sessions expire after 2 hours. No ChatGPT billing data or unrelated chat history is transmitted.
What we log
We log tool calls (park code, timestamp) for rate limiting and reliability monitoring. No personally identifiable information is stored. Logs are retained for 30 days.
Data source
All park data comes from the National Park Service API (nps.gov). Weather data from OpenWeatherMap. We do not sell or share any data.
Limits
Free to use in ChatGPT with generous tool limits. Park details, search, compare, and events cover the NPS catalog; Plan a trip also works for state parks, cities, and road trips. For saved trips, PDF export, and the visual Plan Workspace, use Trailie on the website.
Ready to explore?
Open TrailVerse in ChatGPT — live NPS data from 470+ sites and trip planning for any US destination.