Greenly is a Paris-headquartered (with offices in London and New York) carbon accounting platform focused on small and mid-sized businesses, helping companies measure, reduce, and report their greenhouse-gas emissions across Scope 1, 2, and 3. The platform automates carbon footprint calculations from accounting, expense, supplier, energy, and cloud data; produces regulator-aligned Bilan Carbone, GHG Protocol, CSRD, CBAM, EUDR, SBTi, CDP, TCFD/IFRS, EcoVadis, and California climate disclosure deliverables; supports product-level LCA; recommends supplier alternatives; and offers a marketplace for verified carbon-offset projects. Greenly also exposes a developer-facing Carbon Analytics REST API (v1.5, hosted at api.greenly.earth) historically built by Offspend, which banks and fintechs use to enrich bank-card transactions with per-purchase CO2 emissions, classify spend into purchase categories, surface lower-carbon alternatives, and book offset volumes against vetted projects — sandbox and production environments are available with API-key authentication on request to contact@greenly.earth.
APIs.json: https://raw.githubusercontent.com/api-evangelist/greenly-earth/refs/heads/main/apis.yml
- Type: Index
- Position: Provider
- Access: 3rd-Party
- Carbon Accounting
- Carbon Footprint
- Carbon Analytics
- Greenhouse Gas
- GHG Protocol
- Scope 1
- Scope 2
- Scope 3
- Sustainability
- ESG
- Climate
- CSRD
- CBAM
- EUDR
- SBTi
- TCFD
- EcoVadis
- Bilan Carbone
- Life Cycle Assessment
- Carbon Offsets
- SMB
- Fintech
- Transaction Enrichment
- Created: 2026-05-25
- Modified: 2026-05-25
The Greenly Carbon Analytics API (v1.5) is a RESTful service that enriches bank-card and expense transactions with carbon-footprint analytics. Given a transaction label (raw or cleaned), country, amount, and currency, the API classifies the spend into a purchase category, detects the merchant/provider, and returns estimated CO2-equivalent emissions plus optional lower-carbon alternatives. Companion endpoints expose the purchase-category taxonomy, the list of recommended lower-carbon provider alternatives, the catalog of verified carbon offset projects, an offset-booking endpoint, basic user management, and standard live/ready health probes. Two environments are published: a sandbox at https://apisandbox.greenly.earth/v1.5 and production at https://api.greenly.earth/v1.5. Access requires an API key obtained by emailing contact@greenly.earth; the key is passed in the api-key request header. JSON in and out; sample Postman requests are available.
- Human URL: https://api.greenly.earth/v1.5
- Base URL:
https://api.greenly.earth/v1.5
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FN: Kin Lane Email: kin@apievangelist.com URL: https://apievangelist.com