Sage Accounting

Sage Accounting v3.1 REST API

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.

GitHub

Documentation

📖
Documentation
https://developer.sage.com/accounting/reference/
📖
Authentication
https://developer.sage.com/accounting/guides/authenticating/authentication

Other Resources

🔗
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

API entry from apis.yml

apis.yml Raw ↑ 
aid: sage-accounting:accounting-api
name: Sage Accounting v3.1 REST API
description: 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.
humanURL: https://developer.sage.com/accounting/reference/
baseURL: https://api.accounting.sage.com/v3.1
tags:
- Accounting
- REST API
- OAuth 2.0
- Small Business
properties:
- type: Documentation
  url: https://developer.sage.com/accounting/reference/
- type: Authentication
  url: https://developer.sage.com/accounting/guides/authenticating/authentication
- type: Guides
  url: https://developer.sage.com/accounting/guides/
- type: Authorization Endpoint
  url: https://www.sageone.com/oauth2/auth/central?filter=apiv3.1
- type: Token Endpoint
  url: https://oauth.accounting.sage.com/token
- type: ChangeLog
  url: https://developer.sage.com/accounting/reference/changelog/
- url: graphql/sage-accounting-graphql.md
  type: GraphQL