Zoho Books

Zoho Books is online accounting software for small and growing businesses that handles invoicing, expenses, banking, projects, inventory, vendor bills, reporting, and end-to-end GST/VAT compliance. It is part of the Zoho Finance suite and integrates with the rest of the Zoho One platform alongside payment gateways, banks, and tax authorities. The Zoho Books REST API exposes the full accounting data model — contacts, invoices, estimates, expenses, bills, banking, items, taxes, and reports — using OAuth 2.0 (Zoho-oauthtoken) for authentication and per-region data center base URLs.

Zoho Books publishes 4 APIs on the APIs.io network, including Contacts API, Invoices API, Items API, and 1 more. Tagged areas include Accounting, Bookkeeping, Invoicing, Expenses, and Banking.

Zoho Books’ developer surface includes documentation, pricing, signup flow, support, engineering blog, developer console, and 9 more developer resources.

🌐 Visit website 📡 Source on GitHub

34.1/100 thin ▬ flat Agent 17/100 agent aware Full breakdown ↓
scored 2026-08-25 · rubric v0.14.0

4 APIs

Accounting Bookkeeping Invoicing Expenses Banking Small Business GST VAT Zoho

Kin Score

Kin Score How this is scored →
scored 2026-08-25 · rubric v0.14.0

Composite quality — 34.1/100 · thin

Contract Quality 10.8 / 21

Developer Ergonomics 4.0 / 17

Access Clarity 6.5 / 17

Operational Transparency 2.0 / 11

Contract Governance 0.0 / 10

Discoverability 6.3 / 9

Regulatory Posture 3.8 / 15

Agent readiness — 17/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Surface 0 / 5

Regulatory Posture applies to this provider. Its tags matched the Banking & Open Finance regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/zoho-books: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 4

Individual APIs this provider publishes, each with its own machine-readable definition.

Get Started 3

Portal, sign-up, and the first successful call

Signup

Signup

Login

Console

Console

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

Support

Support

StatusPage

StatusPage

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

PrivacyPolicy

PrivacyPolicy

TermsOfService

TermsOfService

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Source (apis.yml)

aid: zoho-books
name: Zoho Books
description: Zoho Books is online accounting software for small and growing businesses that handles invoicing, expenses, banking,
  projects, inventory, vendor bills, reporting, and end-to-end GST/VAT compliance. It is part of the Zoho Finance suite and
  integrates with the rest of the Zoho One platform alongside payment gateways, banks, and tax authorities. The Zoho Books
  REST API exposes the full accounting data model — contacts, invoices, estimates, expenses, bills, banking, items, taxes,
  and reports — using OAuth 2.0 (Zoho-oauthtoken) for authentication and per-region data center base URLs.
type: Index
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/zoho-books.png
tags:
- Accounting
- Bookkeeping
- Invoicing
- Expenses
- Banking
- Small Business
- GST
- VAT
- Zoho
url: https://raw.githubusercontent.com/api-evangelist/zoho-books/refs/heads/main/apis.yml
created: '2026-05-11'
modified: '2026-05-11'
specificationVersion: '0.23'
apis:
- aid: zoho-books:zoho-books-contacts-api
  name: Zoho Books Contacts API
  description: The Contacts API from Zoho Books — 4 operation(s) for contacts.
  humanURL: https://www.zoho.com/books/api/v3/introduction/
  baseURL: https://www.zohoapis.com/books/v3
  tags:
  - Contacts
  properties:
  - type: OpenAPI
    url: openapi/zoho-books-contacts-api-openapi.yml
  - type: Documentation
    url: https://www.zoho.com/books/api/v3/introduction/
  - type: Authentication
    url: https://www.zoho.com/books/api/v3/oauth/
- aid: zoho-books:zoho-books-invoices-api
  name: Zoho Books Invoices API
  description: The Invoices API from Zoho Books — 5 operation(s) for invoices.
  humanURL: https://www.zoho.com/books/api/v3/introduction/
  baseURL: https://www.zohoapis.com/books/v3
  tags:
  - Invoices
  properties:
  - type: OpenAPI
    url: openapi/zoho-books-invoices-api-openapi.yml
  - type: Documentation
    url: https://www.zoho.com/books/api/v3/introduction/
  - type: Authentication
    url: https://www.zoho.com/books/api/v3/oauth/
- aid: zoho-books:zoho-books-items-api
  name: Zoho Books Items API
  description: The Items API from Zoho Books — 2 operation(s) for items.
  humanURL: https://www.zoho.com/books/api/v3/introduction/
  baseURL: https://www.zohoapis.com/books/v3
  tags:
  - Item
  tags_raw:
  - Items
  properties:
  - type: OpenAPI
    url: openapi/zoho-books-items-api-openapi.yml
  - type: Documentation
    url: https://www.zoho.com/books/api/v3/introduction/
  - type: Authentication
    url: https://www.zoho.com/books/api/v3/oauth/
- aid: zoho-books:zoho-books-organizations-api
  name: Zoho Books Organizations API
  description: The Organizations API from Zoho Books — 1 operation(s) for organizations.
  humanURL: https://www.zoho.com/books/api/v3/introduction/
  baseURL: https://www.zohoapis.com/books/v3
  tags:
  - Organization
  tags_raw:
  - Organizations
  properties:
  - type: OpenAPI
    url: openapi/zoho-books-organizations-api-openapi.yml
  - type: Documentation
    url: https://www.zoho.com/books/api/v3/introduction/
  - type: Authentication
    url: https://www.zoho.com/books/api/v3/oauth/
common:
- type: VulnerabilityDisclosure
  url: security/zoho-books-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/zoho-books-domain-security.yml
- type: GitHubOrganization
  url: https://github.com/zoho
- type: LinkedIn
  url: https://www.linkedin.com/showcase/zoho-books
- type: Website
  url: https://www.zoho.com/books/
- type: Documentation
  url: https://www.zoho.com/books/api/v3/introduction/
- type: Pricing
  url: https://www.zoho.com/books/pricing/
- type: Signup
  url: https://www.zoho.com/books/signup/
- type: Login
  url: https://books.zoho.com/app/login
- type: Support
  url: https://www.zoho.com/books/support/
- type: Blog
  url: https://www.zoho.com/books/blog/
- type: StatusPage
  url: https://status.zoho.com/
- type: PrivacyPolicy
  url: https://www.zoho.com/privacy.html
- type: TermsOfService
  url: https://www.zoho.com/terms.html
- type: Console
  url: https://api-console.zoho.com/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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Zoho Books

Kin Score

APIs 4

Zoho Books Contacts API

Zoho Books Invoices API

Zoho Books Items API

Zoho Books Organizations API

Open Collections 5

API Collection