CarbonSutra - Carbon Footprint Estimation for Organizations

About CarbonSutra - Carbon Footprint Estimation for Organizations

CarbonSutra provides an API, MCP server, and Google Sheet functions for estimating carbon emissions for organizations, covering Scope 1, 2, and 3 greenhouse gas footprints. It offers calculators for business flight travel (based on airport distance and travel class, using ICAO methodology and GHG/EPA emissions factors), hotel stays (covering 40 countries, based on the CHSB 2026 index and UK Government GHG conversion factors), fuel consumption, freight and shipping (road, rail, air, sea, and intermodal, using ECTA and Cefic emission factors), eCommerce shipments (covering 1.5 million postal codes across 95 countries and 9,200 airports), vehicle emissions by type or by make/model (140 makes, 4,500 models), and electricity usage (data from nearly 90 countries).

The product targets IT divisions and independent developers building emissions management, carbon accounting, and ESG/sustainability systems, as well as sustainability managers, accountants, and ESG auditors who need documented calculation methodology. Each API returns CO2e values in grams, kilograms, tonnes, and pounds, and includes a compliance-oriented "explanation" field describing the calculation methodology. APIs can be tested via a browser using a Google, GitHub, or Facebook ID, and are accessible through RapidAPI, which generates code snippets in multiple languages including C, C#, Go, Java, JavaScript, Node.js, PHP, PowerShell, Python, R, Ruby, and Swift. A clustering feature allows grouping calculation results under a self-defined label for later retrieval, without requiring developers to store results themselves.

The API is free for up to 200 requests per month, free for charitable or non-profit organizations regardless of usage, and paid for commercial organizations exceeding 200 calls per month. CarbonSutra also provides Excel spreadsheet integration for smaller installations without coding, and customer support including sample applications for integration with backends such as SAP and Oracle.

Key features

• Clustering feature to group and retrieve emission calculations by self-defined labels
• Google Sheet functions for calculating carbon footprints without coding
• MCP server support
• Auto-generated code snippets in many programming languages for every API endpoint
• Compliance-ready explanation field appended to each calculation output

Frequently asked questions