TrimCarbon in ChatGPT and Claude
Ask your assistant for the CO₂ of your flying. It uses TrimCarbon’s figures for about 60 aircraft types and shows the result in a card where you can change the hours.
Estimates need no account. They count the CO₂ from burning fuel only.
What you can ask
- What’s the CO₂ of 50 hours a year in a Cessna 172?
- Our school flies 600 hours in 172s and 120 hours in a Seminole. What’s our footprint?
- How much CO₂ does burning 100 gallons of avgas release?
- Which aircraft types does TrimCarbon cover?
Add TrimCarbon to your assistant
Claude
- Open Customize, then Connectors.
- Select Add custom connector.
- Name it TrimCarbon and paste the address below.
Server address https://mcp.trimcarbon.com/mcpAfter you add it on the web or in Claude Desktop, it also works in the mobile apps. Free plans allow one custom connector.
ChatGPT
- Open Plugins.
- Select +, then Add custom MCP server.
- Paste the address below.
Server address https://mcp.trimcarbon.com/chatgptCustom MCP servers depend on your ChatGPT plan, region and workspace settings.
Developer tools
Claude Code, Cursor, VS Code and other MCP clients connect to the same address over Streamable HTTP, with no key.
Claude Code claude mcp add --transport http trimcarbon https://mcp.trimcarbon.com/mcpOther MCP clients { "mcpServers": { "trimcarbon": { "type": "http", "url": "https://mcp.trimcarbon.com/mcp" } } }
What it can do
Search aircraft types
Finds a type by name or ICAO code, with its CO₂ per flight hour.
Estimate from flight hours
One aircraft or a whole fleet, per year or in total. You can change the hours in the card.
Estimate from fuel
Avgas 100LL, mogas or Jet A, in US gallons, liters or kg.
Read your logbook
Pick a ForeFlight, Garmin Pilot or LogTen export in the card. It is read on your device and never uploaded; you choose to share the totals.
Offset options
In Claude and developer tools: the options to offset an amount of CO₂, with a link to continue on trimcarbon.com. Nothing is bought in the chat.
Your TrimCarbon account
Connect your account to see your impact, your orders and your certificates in the chat. The assistant can only read them.
What TrimCarbon receives
Only what the tools need: aircraft types, hours, fuel amounts and your language. TrimCarbon doesn’t receive your conversation, and the estimates need no account. If you connect your TrimCarbon account, the assistant can read your own impact, orders and certificates; you can disconnect it at any time on your account page. We record which tools are used, without names or emails, to improve them.
Prefer the website?
The emissions calculator gives the same figures, with a page for each aircraft type.
Open the calculator