# CarbonSutra > CarbonSutra provides production-ready APIs for calculating organizational carbon emissions across Scope 1, Scope 2, and Scope 3 activities. CarbonSutra simplifies carbon footprint estimation by providing programmatic APIs, Google Sheets functions, API clustering, dynamic calculation explanations, and an MCP server for AI-native integrations. ## Documentation - [Getting Started](/getting_started): Introduction to using CarbonSutra APIs. - [Audience and Intent](/audience_and_intent): CarbonSutra's purpose, capabilities, and target users. - [API Reference](/api): Complete OpenAPI reference for CarbonSutra APIs. - [API Playground](/api-playground): Explore and test CarbonSutra APIs interactively. ## Estimation APIs - [Flights](/estimation_apis/flights): Estimate emissions from air travel. - [Hotels](/estimation_apis/hotels): Estimate emissions from hotel stays. - [Vehicles by Type](/estimation_apis/vehicle/vehicle_by_type): Estimate vehicle emissions by vehicle type. - [Vehicles by Model](/estimation_apis/vehicle/vehicles_by_model): Estimate vehicle emissions by vehicle model. - [Freight and Shipments](/estimation_apis/freight_and_shipments): Estimate freight and shipment emissions. - [eCommerce](/estimation_apis/ecommerce): Estimate emissions associated with eCommerce shipments. - [Fuel](/estimation_apis/fuel): Estimate emissions from fuel consumption. - [Electricity](/estimation_apis/electricity): Estimate emissions from electricity consumption. ## Supplementary APIs - [Airport Search by Keyword](/supplementary_apis/Airports/airport_search_by_keyword): Search for airports using keywords. - [Distance Between Two Airports](/supplementary_apis/Airports/distance_between_two_airports): Calculate distance between airports. - [Nearest Airport from Another Airport](/supplementary_apis/Airports/nearest_airport_from_another_airport): Find the nearest airport to another airport. - [Nearest Airport from Postal Code](/supplementary_apis/Airports/nearest_airport_from_postal_code): Find the nearest airport using a postal code. - [List of Models by Vehicle Maker](/supplementary_apis/Vehicles/list_of_models_of_vehicle_maker): Retrieve vehicle models by manufacturer. - [List of Vehicle Makers](/supplementary_apis/Vehicles/list_of_vehicle_makers): Retrieve supported vehicle manufacturers. ## Special APIs - [Singapore Emission Factors Registry](/special_apis/singapore_emission_factor_registry): Access Singapore emission factor data. - [GHG Equivalencies](/special_apis/ghg_equivalencies): Convert emissions into common GHG equivalencies. - [Estimated Flight Time](/special_apis/estimated_flight_time): Estimate flight time between airports. ## Integrations - [Google Sheet Functions](/google_sheet_functions): Calculate emissions directly from Google Sheets. - [MCP Server](/mcp_server): Integrate CarbonSutra with AI assistants and autonomous agents. ## Additional Documentation - [Pricing](/pricing): CarbonSutra pricing information. - [Updates and Roadmap](/updates_and_roadmap): Product updates and roadmap. - [About](/about): About CarbonSutra. ## API Access CarbonSutra APIs are also available through RapidAPI: - [CarbonSutra on RapidAPI](https://rapidapi.com/carbonsutra/api/carbonsutra1) ## Full Documentation For the comprehensive AI-readable documentation, see [llms-full.txt](/llms-full.txt).