Zoho Books REST API v3
The Zoho Books REST API v3 provides full programmatic access to the Zoho Books accounting data model including contacts, invoices, estimates, sales orders, purchase orders, bills, expenses, banking, items, taxes, projects, and financial reports. Authentication uses OAuth 2.0 with the Zoho-oauthtoken header, and base URLs vary by regional data center (.com, .eu, .in, .com.au, .jp, .ca, .com.cn, .sa). Standard pagination, filtering, and rate limiting are supported with up to 100 requests per minute per organization.
Zoho Books REST API v3 is published by Zoho Books on the APIs.io network, described by a machine-readable OpenAPI specification.
Tagged areas include Accounting, Invoicing, Expenses, Banking, and OAuth 2.0. The published artifact set on APIs.io includes API documentation, authentication docs, and an OpenAPI specification.
Requests are made against the base URL https://www.zohoapis.com/books/v3.
Metadata
The identity and technical contract details declared by the specification.
Specification
The full machine-readable OpenAPI contract behind this narrative.