api.myco2suite.io publishes 7 machine-payable endpoints over the x402 protocol, priced from $0.003 to $0.016 per call. Each was probed directly; the response code below is what it returned.
| Endpoint | Method | Price | Probe |
|---|---|---|---|
| /api/v1/activity | POST | $0.003 | 402 |
| /api/v1/cbam | POST | $0.008 | 402 |
| /api/v1/cbam/batch | POST | $0.016 | 402 |
| /api/v1/factor | GET | $0.003 | 402 |
| /api/v1/flight | POST | $0.003 | 402 |
| /api/v1/freight | POST | $0.003 | 402 |
| /api/v1/transaction | POST | $0.003 | 402 |
Activity-based carbon: convert a physical quantity (fuel, electricity, materials; 1,000+ activity types) into verified CO2e for a given country and year.
EU CBAM liability: embedded emissions, free-allocation benchmark, certificates and EUR liability for an import by CN code, origin country and weight (live EU ETS price).
Batch EU CBAM: liability for a portfolio of shipments in one call (1–100 shipments; a single live ETS price is shared). Priced per shipment.
Emission-factor lookup: fetch the underlying factor (value, unit, methodology, source, licence) by id, activity_type, BEA code, or spend classification. Audit-grade provenance, no calculation.
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).
Freight carbon: CO2e for road/rail/sea/air shipments by weight × distance, single-leg or multi-leg intermodal. Ports/airports by UN-LOCODE, IATA, name or lat/long.
Spend-based carbon (Scope 3): convert a transaction amount + industry code (MCC/NAICS/BEA/ISIC/SIC/NACE) into verified CO2e. 200+ countries, licensed emission factors with full provenance.