Groundley plugs into the systems you already use and reads your spend, line by line. Connect out of the box, or build on our REST API. Read-only, EU-hosted, secured with your own identity provider.
A lightweight, read-only connection. No IT project, no custom development. Your spend starts flowing in within a day.


Everything Groundley reads and categorises is available over a clean REST API: invoices and invoice lines, the spend category tree, suppliers, and the emissions that come with them. Authenticate with a bearer token, page through the data, and subscribe to webhooks for anything new.
Browse the full API reference Talk to us about API accessInvoices, invoice lines, the Level 1-3 category tree, suppliers and buyers, all queryable.
The spend-based carbon footprint that comes with each line, ready for your own reporting.
Get notified as new spend is read and categorised, so your systems stay in sync.
Read-only access, EU hosting, encryption in transit and at rest, and your own identity provider. See exactly how on our security page.
Talk to us about the API →