# TerraTwin API Documentation

## Docs

- [Calculate transport emissions](https://docs.terratwin.com/api-reference/calculate-transport-emissions.md): Calculates greenhouse gas emissions for one or more transport operations. The endpoint supports the four core transport modes - `AIR`, `RAIL`, `ROAD`, and `WATER` - as well as a combination mode,  `WEIGHTED_MODES`, which allows multiple underlying modes to be prorated into a single combined operatio…
- [Get calculation result](https://docs.terratwin.com/api-reference/get-calculation-result.md): Returns a previously created emissions calculation that matches the supplied ID.  This ID is the calculation identifier originally provided in the request that created the calculation.
- [List calculation results](https://docs.terratwin.com/api-reference/list-calculation-results.md): Returns a paginated list of stored calculations matching any supplied `created_from` and `created_to` filters, up to the requested `limit`. Items are returned in descending order of creation, with the latest results first.

## OpenAPI Specs

- [openapi](https://docs.terratwin.com/openapi.yaml)