TrimCarbon

by trimcarbon.com · remote · no sign-in to list tools · v1.2.0 · published by com.trimcarbon

CO₂ estimates for general-aviation flying: by aircraft and hours, by fleet, or by fuel.

Changes · 3

Compare Registry entry

10 tools: 3 change things and 7 only read.

Scanned Oct 21, 2026

Deletes or cancels0Claude Code: deny
Can't be undone0Claude Code: ask
Changes things3Claude Code: ask: see these tools
Only reads7Claude Code: allow: see these tools

1 check matched something in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http flight-emissions https://mcp.trimcarbon.com/mcp

Findings

Matches of fixed checks, with the text they matched.

1 warn

Warnimport_logbook
The server marks "import_logbook" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
Matched text
annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "import_logbook" says "import": a word for a change.
What this check looks for

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

10 tools

Changes things 3Creates or changes something that can be changed back.Claude Code: ask

estimate_flight_hoursEstimates the CO₂ from flying hours in one or more aircraft types: one row for a pilot, several rows for a fleet (a school, club or operator).No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it
Estimates the CO₂ from flying hours in one or more aircraft types: one row for a pilot, several rows for a fleet (a school, club or operator). CO₂ = hours × the type’s kg of CO₂ per flight hour, from its fuel flow at about 75% power. Types match by name, ICAO type designator or page slug.
Annotations the server declares
- title: Estimate CO₂ from flight hours
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
estimate_fuel_burnEstimates the CO₂ from burning an amount of aviation fuel: avgas 100LL, mogas (motor gasoline) or Jet A, in US gallons, liters or kg.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Description, as the server wrote it
Estimates the CO₂ from burning an amount of aviation fuel: avgas 100LL, mogas (motor gasoline) or Jet A, in US gallons, liters or kg. Uses the US EPA factor per US gallon and the fuel’s density for liters and kg.
Annotations the server declares
- title: Estimate CO₂ from fuel burned
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
import_logbookOpens a card where the user picks a logbook export from ForeFlight, Garmin Pilot or LogTen.1 finding
Why it is in this group
- The name "import_logbook" says "import": a word for a change.
- The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
Findings
- Warn
  The server marks "import_logbook" read-only (readOnlyHint: true), and its own name, description or input give the class "write".
  Matched text
  annotations: {"readOnlyHint":true,"destructiveHint":false,"idempotentHint":true,"openWorldHint":false}; The name "import_logbook" says "import": a word for a change.
  What this check looks for
Description, as the server wrote it
Opens a card where the user picks a logbook export from ForeFlight, Garmin Pilot or LogTen. The card reads the file on the user’s device, uploads nothing, and shows the flight hours and CO₂ by aircraft type. The user can then share those totals with this conversation. Use it when someone wants the CO₂ of their flying from their logbook.
Annotations the server declares
- title: Import a pilot logbook
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false

Only reads 7Looks things up and changes nothing.Claude Code: allow

get_api_impactFor a company that uses the TrimCarbon offset API: how much CO₂ it has offset through the API, in total, in the last 30 days and by month, and its API access status.No findings
Why it is in this group
- The name "get_api_impact" says "get": a word for reading.
Description, as the server wrote it
For a company that uses the TrimCarbon offset API: how much CO₂ it has offset through the API, in total, in the last 30 days and by month, and its API access status. Needs the user to connect their TrimCarbon account.
Annotations the server declares
- title: Show my offset API impact
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
get_certificateShows one of the signed-in user’s TrimCarbon certificates: kg of CO₂, holder, dates, projects with their registries and retirement serial numbers, and links to the public certifica…No findings
Why it is in this group
- The name "get_certificate" says "get": a word for reading.
Description, as the server wrote it
Shows one of the signed-in user’s TrimCarbon certificates: kg of CO₂, holder, dates, projects with their registries and retirement serial numbers, and links to the public certificate and its PDF. Takes the certificate number (TC-7K2M-9QXF-4HJD) that list_my_offsets returns. Needs the user to connect their TrimCarbon account.
Annotations the server declares
- title: Show one of my offset certificates
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
get_my_accountShows the signed-in TrimCarbon account: email, current offset plan (monthly or yearly, kg of CO₂ per period, renewal date) and offset API access.No findings
Why it is in this group
- The name "get_my_account" says "get": a word for reading.
Description, as the server wrote it
Shows the signed-in TrimCarbon account: email, current offset plan (monthly or yearly, kg of CO₂ per period, renewal date) and offset API access. Needs the user to connect their TrimCarbon account.
Annotations the server declares
- title: Show my TrimCarbon account
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
get_my_impactShows how much CO₂ the signed-in user has offset with TrimCarbon: the total, what is still being processed, by source (one-time, subscription, offset API), by year, and the project…No findings
Why it is in this group
- The name "get_my_impact" says "get": a word for reading.
Description, as the server wrote it
Shows how much CO₂ the signed-in user has offset with TrimCarbon: the total, what is still being processed, by source (one-time, subscription, offset API), by year, and the projects funded. Needs the user to connect their TrimCarbon account.
Annotations the server declares
- title: Show my offset impact
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
list_my_offsetsLists the signed-in user’s TrimCarbon offset orders, newest first: date, source, kg of CO₂, status and the public certificate link once issued.No findings
Why it is in this group
- The name "list_my_offsets" says "list": a word for reading.
Description, as the server wrote it
Lists the signed-in user’s TrimCarbon offset orders, newest first: date, source, kg of CO₂, status and the public certificate link once issued. Needs the user to connect their TrimCarbon account.
Annotations the server declares
- title: List my offsets
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
quote_offsetReturns what TrimCarbon charges to offset an amount of CO₂: a one-time purchase in whole tonnes, and for yearly amounts the monthly and yearly plans.No findings
Why it is in this group
- The description's first verb is "return": a word for reading.
Description, as the server wrote it
Returns what TrimCarbon charges to offset an amount of CO₂: a one-time purchase in whole tonnes, and for yearly amounts the monthly and yearly plans. Each option has a link to continue on trimcarbon.com, where the user signs up and pays. This tool does not buy anything. It is for when the user asks what offsetting costs.
Annotations the server declares
- title: Price an offset
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false
search_aircraftFinds the aircraft types TrimCarbon has figures for, by name (e.g.No findings
Why it is in this group
- The name "search_aircraft" says "search": a word for reading.
Description, as the server wrote it
Finds the aircraft types TrimCarbon has figures for, by name (e.g. "Cessna 172", "Skyhawk"), ICAO type designator (e.g. "C172", "PA28") or page slug. Returns each type with its kg of CO₂ per flight hour. The list covers about 60 general-aviation types, plus a few airliners (per passenger) and business jets.
Annotations the server declares
- title: Search aircraft types
- readOnlyHint: true
- destructiveHint: false
- idempotentHint: true
- openWorldHint: false

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.2.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http flight-emissions https://mcp.trimcarbon.com/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json

{
  "permissions": {
    "allow": [
      "mcp__flight-emissions__search_aircraft",
      "mcp__flight-emissions__quote_offset",
      "mcp__flight-emissions__get_my_account",
      "mcp__flight-emissions__get_my_impact",
      "mcp__flight-emissions__list_my_offsets",
      "mcp__flight-emissions__get_certificate",
      "mcp__flight-emissions__get_api_impact"
    ],
    "ask": [
      "mcp__flight-emissions__estimate_flight_hours",
      "mcp__flight-emissions__estimate_fuel_burn",
      "mcp__flight-emissions__import_logbook"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as flight-emissions. Review it before you use it.

Keep track

Get told when this server's tools change: a new tool, a new description, a new class.

https://anlyon.dev/servers/com.trimcarbon/flight-emissions/changes.xml

An Atom feed. Works in any feed reader or Slack's RSS app.

Anlyon alternative

3 of these tools change something. Run those as governed actions.

Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.

Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.

Import an OpenAPI spec →

Compare with other servers for the same product.

Source: MCP Registry. Synced Oct 21, 2026, 18:09 UTC.

For agents: Markdown · JSON · report this listing