# ExchangeRebel Emission Factors API

**Canonical:** https://apis.io/apis/exchangerebel-com/exchangerebel-com-emission-factors-api/  
**Provider:** ExchangeRebel — https://apis.io/providers/exchangerebel-com/  
**Base URL:** https://exchangerebel.com  
**Documentation:** https://exchangerebel.com/api.html

ExchangeRebel Emission Factors API is one of 112 APIs that [ExchangeRebel](https://apis.io/providers/exchangerebel-com/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Emission Factors. The published artifact set on APIs.io includes an OpenAPI specification.

The Emission Factors API from ExchangeRebel — 4 operation(s) for emission factors.

## Operations (4)

| Method | Path | Summary |
|---|---|---|
| POST | `/toll/emissions/calculate` | Calculate CO2e for one activity from a published factor |
| POST | `/toll/emissions/calculate/batch` | Calculate CO2e for up to 100 activities in one call |
| GET | `/toll/emissions/factors` | Emission factor catalog: metadata only, no values |
| GET | `/toll/emissions/health` | Check the emission factors service status |

## Machine-readable artifacts (1)

- **OpenAPI** — https://artifacts.apis.io/exchangerebel-com/openapi/exchangerebel-com-emission-factors-api-openapi.yml

## Other ExchangeRebel APIs (12)

- [ExchangeRebel A2A Messaging API](https://apis.io/apis/exchangerebel-com/exchangerebel-com-a2a-messaging-api/)
- [ExchangeRebel Accessibility Scan API](https://apis.io/apis/exchangerebel-com/exchangerebel-com-accessibility-scan-api/)
- [ExchangeRebel Activity.json API](https://apis.io/apis/exchangerebel-com/exchangerebel-com-activity-json-api/)
- [ExchangeRebel Address Verdicts API](https://apis.io/apis/exchangerebel-com/exchangerebel-com-address-verdicts-api/)
- [ExchangeRebel Agent Data Core API](https://apis.io/apis/exchangerebel-com/exchangerebel-com-agent-data-core-api/)
- [ExchangeRebel Agent Data Core Arena API](https://apis.io/apis/exchangerebel-com/exchangerebel-com-agent-data-core-arena-api/)
- [ExchangeRebel Agent Data Core Packs API](https://apis.io/apis/exchangerebel-com/exchangerebel-com-agent-data-core-packs-api/)
- [ExchangeRebel Anomaly Detection API](https://apis.io/apis/exchangerebel-com/exchangerebel-com-anomaly-detection-api/)
- [ExchangeRebel Apidiff API](https://apis.io/apis/exchangerebel-com/exchangerebel-com-apidiff-api/)
- [ExchangeRebel Argument Check API](https://apis.io/apis/exchangerebel-com/exchangerebel-com-argument-check-api/)
- [ExchangeRebel Artefact Correspondence API](https://apis.io/apis/exchangerebel-com/exchangerebel-com-artefact-correspondence-api/)
- [ExchangeRebel Audio Transcription API](https://apis.io/apis/exchangerebel-com/exchangerebel-com-audio-transcription-api/)

## Tags

Emission Factors

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/exchangerebel-com/exchangerebel-com-emission-factors-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/exchangerebel-com/.