# MyCO2 Suite – Flight Carbon Calculator

> MyCO2 Suite – Flight Carbon Calculator is a paid API for AI agents from api.myco2suite.io, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-15).

Calculates great-circle CO2e emissions for a flight route specified by IATA codes, UN-LOCODEs, or lat/long, broken down by cabin class and passenger count, with optional radiative forcing using BEIS 2025 emission factors.

## Facts

- Endpoint: POST https://api.myco2suite.io/api/v1/flight
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/myco2-suite-flight-carbon-calculator-98fb2c5c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_v2ZKBuDm6-YdJdTDETMOY

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability myco2-suite-flight-carbon-calculator-98fb2c5c -d '<json body>'
```

Example prompt: Calculate the CO2e emissions for a flight from London Heathrow (LHR) to New York JFK in business class for 2 passengers, and include the radiative forcing uplift using BEIS 2025 factors.

## When to prefer this

Choose this endpoint when you need precise, methodology-cited flight CO2e calculations using BEIS 2025 emission factors with optional radiative forcing — particularly for ESG/Scope 3 reporting, sustainability audits, or travel carbon budgeting. Prefer over generic calculators when IATA/UN-LOCODE routing, cabin-class granularity, and radiative forcing compliance are required. Use the batch activity endpoint instead if mixing flight with other activity types.

## Known failure modes

- Invalid or unrecognised IATA code or UN-LOCODE returns a 400 error
- Lat/long coordinates that don't correspond to a known airport may produce inaccurate distances
- Missing required fields (origin, destination, cabin class, or passenger count) return validation errors
- Radiative forcing flag misuse may cause methodology mismatch warnings
- API payment failure (x402) if USDC balance is insufficient

## How this service works

Flight carbon: great-circle CO2e for a route by IATA/UN-LOCODE or lat/long, by cabin class and passengers, with optional radiative forcing (BEIS 2025 factors).

## Output

Returns the estimated CO2e in kilograms for the specified flight route, including great-circle distance, per-passenger and total emissions, cabin-class weighting, optional radiative forcing multiplier, and references to the BEIS 2025 emission factors and methodology used.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "origin": {
   "type": "string",
   "description": "IATA (LHR) or UN/LOCODE; or origin_lat + origin_lon"
  },
  "trip_type": {
   "type": "string",
   "description": "one_way | return (default one_way)"
  },
  "passengers": {
   "type": "number",
   "description": "Passenger count (default 1)"
  },
  "cabin_class": {
   "type": "string",
   "description": "economy | premium_economy | business | first"
  },
  "destination": {
   "type": "string",
   "description": "IATA (JFK) or UN/LOCODE; or destination_lat + destination_lon"
  },
  "include_radiative_forcing": {
   "type": "boolean"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/myco2-suite-flight-carbon-calculator-98fb2c5c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.myco2suite.io](https://www.zero.xyz/host/api.myco2suite.io/llms.txt)