# Sage Accounting v3.1 REST API

**Canonical:** https://apis.io/apis/sage-accounting/accounting-api/  
**Provider:** Sage Accounting — https://apis.io/providers/sage-accounting/  
**Base URL:** https://api.accounting.sage.com/v3.1  
**Documentation:** https://developer.sage.com/accounting/reference/

Sage Accounting v3.1 REST API is published by [Sage Accounting](https://apis.io/providers/sage-accounting/) on the [APIs.io](https://apis.io/) network. Tagged areas include Accounting, REST API, Authentication, and Small Business. The published artifact set on APIs.io includes API documentation, authentication docs, and a changelog.

REST API for Sage Business Cloud Accounting providing access to contacts, sales invoices, sales credit notes, purchase invoices, purchase credit notes, ledger accounts, journals, products, services, tax rates, bank accounts, bank transactions, and attachments. Multi-business apps target a business via the X-Business header.

## Machine-readable artifacts (8)

- **Documentation** — https://developer.sage.com/accounting/reference/
- **Authentication** — https://developer.sage.com/accounting/guides/authenticating/authentication
- **Guides** — https://developer.sage.com/accounting/guides/
- **Authorization Endpoint** — https://www.sageone.com/oauth2/auth/central?filter=apiv3.1
- **Token Endpoint** — https://oauth.accounting.sage.com/token
- **ChangeLog** — https://developer.sage.com/accounting/reference/changelog/
- **GraphQL** — https://raw.githubusercontent.com/api-evangelist/sage-accounting/refs/heads/main/graphql/sage-accounting-graphql.md
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/sage-accounting/refs/heads/main/apis.yml

## Tags

Accounting, REST API, Authentication, Small Business

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/sage-accounting/accounting-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/sage-accounting/.