Zoho Invoice

Zoho Invoice is a cloud-based invoicing application for small businesses and freelancers that supports customer management, estimates, invoices, recurring billing, expense tracking, time tracking, and online payment collection. The Zoho Invoice REST API provides full CRUD access to organizations, contacts, items, invoices, estimates, credit notes, expenses, projects, time entries, and customer payments. Authentication uses OAuth 2.0 with region-specific data center domains (.com, .eu, .in, .com.au, .jp, .ca, .com.cn, .sa).

Zoho Invoice publishes 5 APIs on the APIs.io network, including Contacts API, Credit Notes API, Estimates API, and 2 more. Tagged areas include Invoicing, Accounting, Small Business, Billing, and Expense Tracking.

Zoho Invoice’s developer surface includes documentation, pricing, signup flow, developer console, engineering blog, and 4 more developer resources.

🌐 Visit website 📡 Source on GitHub

29.0/100 thin ▬ flat Agent 17/100 agent aware Full breakdown ↓
scored 2026-08-25 · rubric v0.14.0

6 APIs

Invoicing Accounting Small Business Billing Expense Tracking Software-as-a-Service

Kin Score

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

Composite quality — 29.0/100 · thin

Contract Quality 12.8 / 25

Developer Ergonomics 3.8 / 20

Access Clarity 4.7 / 20

Operational Transparency 0.3 / 13

Contract Governance 0.0 / 12

Discoverability 7.4 / 10

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

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-invoice: 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 6

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

Get Started 2

Portal, sign-up, and the first successful call

Signup

Signup

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

Commercial 1

Pricing, plans, and the legal terms of use

Pricing

Pricing

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: zoho-invoice
name: Zoho Invoice
description: Zoho Invoice is a cloud-based invoicing application for small businesses and freelancers that supports customer
  management, estimates, invoices, recurring billing, expense tracking, time tracking, and online payment collection. The
  Zoho Invoice REST API provides full CRUD access to organizations, contacts, items, invoices, estimates, credit notes, expenses,
  projects, time entries, and customer payments. Authentication uses OAuth 2.0 with region-specific data center domains (.com,
  .eu, .in, .com.au, .jp, .ca, .com.cn, .sa).
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-invoice.png
tags:
- Invoicing
- Accounting
- Small Business
- Billing
- Expense Tracking
- Software-as-a-Service
tags_raw:
- Invoicing
- Accounting
- Small Business
- Billing
- Expense Tracking
- SaaS
url: https://raw.githubusercontent.com/api-evangelist/zoho-invoice/refs/heads/main/apis.yml
created: '2026-05-11'
modified: '2026-05-11'
specificationVersion: '0.23'
apis:
- aid: zoho-invoice:api
  name: Zoho Invoice API
  description: REST API for managing organizations, contacts, items, invoices, estimates, credit notes, recurring invoices,
    expenses, projects, time entries, and customer payments. Authentication is OAuth 2.0 with Organization ID header and region-specific
    data center domains.
  humanURL: https://www.zoho.com/invoice/api/v3/introduction
  baseURL: https://www.zohoapis.com/invoice/v3
  tags:
  - Invoicing
  - Billing
  - Accounting
  properties:
  - type: Documentation
    url: https://www.zoho.com/invoice/api/v3/introduction
  - type: OAuth Overview
    url: https://www.zoho.com/invoice/api/v3/oauth/
- aid: zoho-invoice:zoho-invoice-contacts-api
  name: Zoho Invoice Contacts API
  description: The Contacts API from Zoho Invoice — 3 operation(s) for contacts.
  humanURL: https://www.zoho.com/invoice/api/v3/introduction
  baseURL: https://www.zohoapis.com/invoice/v3
  tags:
  - Contacts
  properties:
  - type: OpenAPI
    url: openapi/zoho-invoice-contacts-api-openapi.yml
- aid: zoho-invoice:zoho-invoice-credit-notes-api
  name: Zoho Invoice Credit Notes API
  description: The Credit Notes API from Zoho Invoice — 2 operation(s) for credit notes.
  humanURL: https://www.zoho.com/invoice/api/v3/introduction
  baseURL: https://www.zohoapis.com/invoice/v3
  tags:
  - Credit Notes
  properties:
  - type: OpenAPI
    url: openapi/zoho-invoice-credit-notes-api-openapi.yml
- aid: zoho-invoice:zoho-invoice-estimates-api
  name: Zoho Invoice Estimates API
  description: The Estimates API from Zoho Invoice — 2 operation(s) for estimates.
  humanURL: https://www.zoho.com/invoice/api/v3/introduction
  baseURL: https://www.zohoapis.com/invoice/v3
  tags:
  - Estimates
  properties:
  - type: OpenAPI
    url: openapi/zoho-invoice-estimates-api-openapi.yml
- aid: zoho-invoice:zoho-invoice-invoices-api
  name: Zoho Invoice Invoices API
  description: The Invoices API from Zoho Invoice — 6 operation(s) for invoices.
  humanURL: https://www.zoho.com/invoice/api/v3/introduction
  baseURL: https://www.zohoapis.com/invoice/v3
  tags:
  - Invoices
  properties:
  - type: OpenAPI
    url: openapi/zoho-invoice-invoices-api-openapi.yml
- aid: zoho-invoice:zoho-invoice-organizations-api
  name: Zoho Invoice Organizations API
  description: The Organizations API from Zoho Invoice — 1 operation(s) for organizations.
  humanURL: https://www.zoho.com/invoice/api/v3/introduction
  baseURL: https://www.zohoapis.com/invoice/v3
  tags:
  - Organization
  tags_raw:
  - Organizations
  properties:
  - type: OpenAPI
    url: openapi/zoho-invoice-organizations-api-openapi.yml
common:
- type: VulnerabilityDisclosure
  url: security/zoho-invoice-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/zoho-invoice-domain-security.yml
- type: GitHubOrganization
  url: https://github.com/zoho
- type: Website
  url: https://www.zoho.com/invoice
- type: Documentation
  url: https://www.zoho.com/invoice/api/v3
- type: Pricing
  url: https://www.zoho.com/invoice/pricing.html
- type: Signup
  url: https://www.zoho.com/invoice/signup
- type: Console
  url: https://api-console.zoho.com
- url: https://www.zoho.com/invoice/blog/feed/
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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Zoho Invoice

Kin Score

APIs 6

Zoho Invoice API

Zoho Invoice Contacts API

Zoho Invoice Credit Notes API

Zoho Invoice Estimates API

Zoho Invoice Invoices API

Zoho Invoice Organizations API

Open Collections 6

API Collection