One API call turns any transaction, flight, or activity into a verified CO₂e number. Built agent-native — callable by AI agents via MCP, A2A, and ACP, and by developers over a clean REST API.
Factors sourced from official government datasets
// Carbon footprint of a £50 grocery purchase
const res = await fetch(
'https://sandbox.myco2suite.com/api/v1/transaction',
{
method: 'POST',
headers: {
'Content-Type': 'application/json',
'x-api-key': 'your_api_key'
},
body: JSON.stringify({
mcc: '5411',
spend_amount: 50,
currency: 'GBP',
country: 'GB'
})
}
);
const data = await res.json();
// → { co2e_grams: 16390.06, co2e_kg: 16.39,
// factor: { methodology: 'spend-based', ... } }Spend-based, travel, and activity emissions with full Scope 1, 2, and 3 coverage. Methodology and source returned on every response.
140+ countries via BEA EEIO factors, with native UK and US spend-based data. Transparent country and year fallback on every call.
MCC, BEA, NAICS, ISIC, SIC, and NACE. We crosswalk between standards automatically so you send the code you already have.
Factors from DEFRA / BEIS, EPA Supply Chain GHG, and the Australian NGA. Every response carries its source, data year, and confidence.
IATA codes, cabin class, haul type, and great-circle distance correction. Optional radiative forcing for full Scope 3 reporting.
Send any ISO 4217 currency. We convert to the factor currency with live FX rates so your CO₂e is correct regardless of input currency.
Discoverable and callable by AI agents through MCP, A2A, and ACP. Every response includes machine-readable links and next-step hints.
Most carbon APIs assume a human integrates over weeks. MyCO2 is built so an autonomous agent can discover it, understand it, and call it in a single step — no integration project required.
/.well-known/agent-card.json — A2A agent discovery/api/v1/acp — native carbon-calculation delegation/llms.txt — full machine-readable API guide1,000 free calls a month. Get your API key in seconds.
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