Carbon Footprint API
Energy consumption and CO2 emissions for 50+ blockchain networks.
Disclaimer: Supports MiCA Article 66 disclosure workflows.
Data infrastructure only - no certification provided or attestation provided.
Authentication
Required: X-API-Key: YOUR_KEY
Endpoints
| Endpoint | Description |
|---|---|
/api/v1/feeds/carbon/chains | All networks |
/api/v1/feeds/carbon/summary | Summary |
/api/v1/feeds/health-carbon | Health + carbon |
Examples
curl -H "X-API-Key: YOUR_KEY" \ https://api.feedoracle.io/api/v1/feeds/carbon/summary
Response
{
"total_networks": 50,
"avg_kwh_per_tx": 0.0012,
"greenest": "polygon",
"consensus_breakdown": {"pos": 45, "pow": 8}
}
Metrics
| Field | Unit |
|---|---|
| energy_kwh_per_tx | kWh |
| carbon_gco2_per_tx | grams CO2 |
| consensus | PoS/PoW |
Errors
| Code | Meaning |
|---|---|
| 401 | Invalid API key |
| 429 | Rate limit exceeded |
Data Sources
CCRI - Crypto Carbon Ratings Institute
Network RPCs - Direct blockchain queries
Network RPCs - Direct blockchain queries
L2 Live Data
9 Layer 2 chains with real-time block and gas data:
- Arbitrum, Base, Optimism, zkSync Era, Linea, Scroll, Mantle, Blast, Polygon
See L2 Intelligence API for fee oracle and health monitoring.