Zoho Campaigns

Zoho Campaigns is Zoho Corporation's email marketing platform, and it exposes two distinct public API surfaces. The Zoho Campaigns API v1.1 is an RPC-over-HTTP interface for campaigns, mailing lists, contacts, segments, custom fields, merge tags, coupons, topics and automation workflows, authenticated with OAuth 2.0 against Zoho Accounts and returning JSON or XML selected with a resfmt query parameter. The Zoho Campaigns Email API v2 is a separate resource-oriented JSON REST API for transactional and bulk sending — transmissions, stored templates, recipient lists, suppression lists, sending and tracking domains, users, licensing, delivery reports and event webhooks — authenticated with an API key. Zoho publishes no OpenAPI for either surface; the machine-readable contract it does publish is a first-party Postman collection for the Email API.

Zoho Campaigns is listed with 2 APIs on the APIs.io network, including Email API, and 1 more. Tagged areas include Email Marketing, Campaigns, Mailing Lists, Subscribers, and Email Templates.

The Zoho Campaigns catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Zoho Campaigns’ developer surface includes documentation, API reference, quickstart, support, engineering blog, pricing, signup flow, and 33 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

63.4/100 strong ▬ flat Agent 34/100 agent ready saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

2 APIs

Email Marketing Campaigns Mailing Lists Subscribers Email Templates A/B Testing Campaign Analytics Marketing Automation Transactional Email Webhook

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 63.4/100 · strong

Contract Quality 8.3 / 21

Developer Ergonomics 10.1 / 17

Access Clarity 15.7 / 17

Operational Transparency 9.3 / 11

Contract Governance 1.9 / 10

Discoverability 5.6 / 9

Regulatory Posture 6.6 / 15

Agent readiness — 34/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 6 / 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 6 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Telecommunications 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.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

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/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document

7 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 39.0 — up to +15.3 composite points
Contract Governance scores 18.2 — up to +9.8 composite points
Developer Ergonomics scores 59.5 — up to +8.1 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/zoho-campaigns/apis.yml: open an issue on github.com/api-evangelist/zoho-campaigns to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 2

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Postman Collections

measured — observed by APIs.io (published)

OAuth 2.0

measured — observed by APIs.io (declared)

APIs 2

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

Zoho Campaigns API

REST API for managing email campaigns, mailing lists, subscribers, templates, and analytics in Zoho Campaigns. Supports campaign creation, scheduling, sending, cloning, and repo...

Zoho Campaigns Email API

Resource-oriented JSON REST API for sending email at volume from Zoho Campaigns. Covers transmissions (create, schedule, reschedule, cancel, fetch), stored HTML/text templates, ...

Zoho Campaigns API pricing

Prices published by Zoho Campaigns, read 2026-10-28 from www.zoho.com/campaigns/pricing.html.

Plan	Price
Forever Free	Forever Free Includes: Up to 2,000 contacts, 6,000 emails/month, 5 users
Standard	Standard Includes: Starts at 500 contacts, Unlimited emails, 10 users; supports up to 100,000 contacts
Professional	Professional Includes: Starts at 500 contacts, Unlimited emails, 20+ users

Plan details, limits and sources →

Rate limits

Standard API Rate Limit: 5 minutes
Email API report date range: 90 days

All 3 limits →

Pricing Plans 1

Published pricing tiers and plan structures.

Zoho Campaigns Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Zoho Campaigns Rate Limits

3 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Zoho Campaigns

SLA

FinOps 1

Cost, billing, and metering signals for API financial operations.

Zoho Campaigns Finops

FINOPS

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Zoho Campaigns Email Api Webhooks

ASYNCAPI

Security Posture 4

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Zoho Campaigns Authentication

oauth2/apiKey · 3 schemes

SECURITY

Zoho Campaigns Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Zoho Campaigns Vulnerability Disclosure

security.txt · contact published

SECURITY

Zoho Campaigns Trust Center

ISO/IEC 27001, ISO/IEC 27017, ISO/IEC 27018, ISO/IEC 27701, ISO/IEC 20000-1, ISO 9001, ISO 22301, SOC 1 Type 2 (SSAE 18 / ISAE 3402), SOC 2 Type 2, SOC 2 + HIPAA Type 2, PCI DSS...

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Zoho Campaigns Scopes

15 scopes · authorizationCode

15 scopes

SCOPES

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

Quickstart

Quickstart

SignUp

SignUp

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

ErrorCatalog

Webhooks

Conventions

Lifecycle

Conformance

DataModel

JSONLD

Scroll for all 7

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Postman

Postman

Packages

Packages

Access & Security 8

Authentication, authorization, and security posture

Security

Compliance

Authentication

OAuthScopes

SecurityTxt

VulnerabilityDisclosure

VulnerabilityDisclosure

TrustCenter

TrustCenter

DomainSecurity

DomainSecurity

Scroll for all 8

Operate 5

Status, limits, changes, and where to get help

Support

StatusPage

ChangeLog

RateLimits

ChangeLog

Commercial 5

Pricing, plans, and the legal terms of use

Pricing

TermsOfService

PrivacyPolicy

Plans

FinOps

Company 4

The organization behind the API

Website

Website

LinkedIn

Blog

Blog

BlogPosts

BlogPosts

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

aid: zoho-campaigns
name: Zoho Campaigns
description: Zoho Campaigns is Zoho Corporation's email marketing platform, and it exposes two distinct public API surfaces.
  The Zoho Campaigns API v1.1 is an RPC-over-HTTP interface for campaigns, mailing lists, contacts, segments, custom fields,
  merge tags, coupons, topics and automation workflows, authenticated with OAuth 2.0 against Zoho Accounts and returning JSON
  or XML selected with a resfmt query parameter. The Zoho Campaigns Email API v2 is a separate resource-oriented JSON REST
  API for transactional and bulk sending — transmissions, stored templates, recipient lists, suppression lists, sending and
  tracking domains, users, licensing, delivery reports and event webhooks — authenticated with an API key. Zoho publishes
  no OpenAPI for either surface; the machine-readable contract it does publish is a first-party Postman collection for the
  Email API.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  - scopes
  - rate-limits
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/zoho-campaigns.png
url: https://raw.githubusercontent.com/api-evangelist/zoho-campaigns/refs/heads/main/apis.yml
created: '2026-06-13'
modified: '2026-08-13'
specificationVersion: '0.23'
tags:
- Email Marketing
- Campaigns
- Mailing Lists
- Subscribers
- Email Templates
- A/B Testing
- Campaign Analytics
- Marketing Automation
- Transactional Email
- Webhook
tags_raw:
- Email Marketing
- Campaigns
- Mailing Lists
- Subscribers
- Email Templates
- A/B Testing
- Campaign Analytics
- Marketing Automation
- Transactional Email
- Webhooks
apis:
- name: Zoho Campaigns API
  description: REST API for managing email campaigns, mailing lists, subscribers, templates, and analytics in Zoho Campaigns.
    Supports campaign creation, scheduling, sending, cloning, and reporting as well as contact and list management.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://www.zoho.com/campaigns/help/developers/
  baseURL: https://campaigns.zoho.com/api/v1.1/
  tags:
  - Email Marketing
  - Campaigns
  - Mailing Lists
  - Subscribers
  - Email Templates
  - A/B Testing
  - Campaign Analytics
  properties:
  - type: Documentation
    url: https://www.zoho.com/campaigns/help/developers/
  - type: Authentication
    url: https://www.zoho.com/campaigns/help/developers/access-token.html
  - type: APIReference
    url: https://www.zoho.com/campaigns/help/developers/campaign-management.html
  - type: JSONLD
    url: json-ld/zoho-campaigns.json
- name: Zoho Campaigns Email API
  description: 'Resource-oriented JSON REST API for sending email at volume from Zoho Campaigns. Covers transmissions (create,
    schedule, reschedule, cancel, fetch), stored HTML/text templates, recipient lists, the suppression list, sending and bounce
    domains, tracking domains, webhook subscriptions, delivery and event reports (open, click, bounce, spam), user management
    and license details. Version 2 authenticates with an API key sent as "Authorization: Zoho-zapikey"; the still-published
    version 1 uses the same resource tree with Zoho OAuth 2.0 tokens.'
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://www.zoho.com/campaigns/help/emailapi/overview.html
  baseURL: https://campaigns.zoho.com/emailapi/v2/
  tags:
  - Transactional Email
  - Email Delivery
  - Templates
  - Suppression Lists
  - Sending Domains
  - Webhook
  - Deliverability Reports
  tags_raw:
  - Transactional Email
  - Email Delivery
  - Templates
  - Suppression Lists
  - Sending Domains
  - Webhooks
  - Deliverability Reports
  properties:
  - type: Documentation
    url: https://www.zoho.com/campaigns/help/emailapi/overview.html
  - type: Authentication
    url: https://www.zoho.com/campaigns/help/emailapi/authentication.html
  - type: PostmanCollection
    url: postman/zoho-campaigns-email-api-collection.json
  - type: Webhooks
    url: asyncapi/zoho-campaigns-email-api-webhooks.yml
  - type: ErrorCatalog
    url: https://www.zoho.com/campaigns/help/emailapi/error-codes.html
common:
- type: Website
  url: https://www.zoho.com/campaigns/
- type: DeveloperPortal
  url: https://www.zoho.com/campaigns/help/developers/
- type: Documentation
  url: https://www.zoho.com/campaigns/help/developers/
- type: APIReference
  url: https://www.zoho.com/campaigns/help/developers/campaign-management.html
- type: Quickstart
  url: https://www.zoho.com/campaigns/help/developers/access-token.html
- type: Support
  url: https://help.zoho.com/portal/en/community/zoho-campaigns
- type: GitHubOrganization
  url: https://github.com/zoho
- type: LinkedIn
  url: https://www.linkedin.com/showcase/zoho-campaigns/
- type: X
  url: https://x.com/zohocampaigns
- type: Blog
  url: https://www.zoho.com/blog/campaigns/
- type: BlogPosts
  url: blogs/blogs.json
- type: Pricing
  url: https://www.zoho.com/campaigns/pricing.html
- type: SignUp
  url: https://www.zoho.com/campaigns/signup.html
- type: TermsOfService
  url: https://www.zoho.com/campaigns/terms.html
- type: PrivacyPolicy
  url: https://www.zoho.com/privacy.html
- type: StatusPage
  url: https://status.zoho.com/
- type: ChangeLog
  url: https://www.zoho.com/campaigns/whats-new.html
- type: Postman
  url: https://www.postman.com/zoho-emailapi-b1/zoho-campaigns-email-api/collection/lhb7bxz/email-api-collection
- type: Security
  url: https://bugbounty.zohocorp.com/bb/info
- type: Compliance
  url: https://www.zoho.com/compliance.html
- type: Plans
  url: plans/zoho-campaigns-plans-pricing.yml
- type: RateLimits
  url: rate-limits/zoho-campaigns-rate-limits.yml
- type: FinOps
  url: finops/zoho-campaigns-finops.yml
- type: Authentication
  url: authentication/zoho-campaigns-authentication.yml
- type: OAuthScopes
  url: scopes/zoho-campaigns-scopes.yml
- type: ErrorCatalog
  url: errors/zoho-campaigns-error-codes.yml
- type: Webhooks
  url: asyncapi/zoho-campaigns-email-api-webhooks.yml
- type: Conventions
  url: conventions/zoho-campaigns-conventions.yml
- type: Lifecycle
  url: lifecycle/zoho-campaigns-lifecycle.yml
- type: ChangeLog
  url: changelog/zoho-campaigns-changelog.yml
- type: Conformance
  url: conformance/zoho-campaigns-conformance.yml
- type: DataModel
  url: data-model/zoho-campaigns-data-model.yml
- type: Packages
  url: packages/zoho-campaigns-packages.yml
- type: LLMsTxt
  url: llms/zoho-campaigns-llms.txt
- type: WellKnown
  url: well-known/zoho-campaigns-well-known.yml
- type: SecurityTxt
  url: well-known/zoho-campaigns-security.txt
- type: VulnerabilityDisclosure
  url: security/zoho-campaigns-vulnerability-disclosure.yml
- type: TrustCenter
  url: security/zoho-campaigns-trust-center.yml
- type: DomainSecurity
  url: security/zoho-campaigns-domain-security.yml
- type: JSONLD
  url: json-ld/zoho-campaigns.json
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-enrichment:
  date: '2026-08-13'
  status: enriched
  artifacts_added: 17
  pass: local-v1
x-parent: zoho
x-relationship: product

Zoho Campaigns API — frequently asked questions

Does Zoho Campaigns have an API?

Yes. APIs.io lists 2 APIs from Zoho Campaigns, including Zoho Campaigns API and Zoho Campaigns Email API.

How do I authenticate with the Zoho Campaigns API?

Zoho Campaigns documents its authentication (oauth2/apiKey · 3 schemes). The details are profiled on APIs.io as Zoho Campaigns Authentication.

How much does the Zoho Campaigns API cost?

Zoho Campaigns publishes its prices; its Forever Free plan is Forever Free as of 2026-10-28. APIs.io lists 3 pricing plans for Zoho Campaigns, with each plan's price, limits and inclusions under Pricing on this page.

Is the Zoho Campaigns API ready for AI agents?

Zoho Campaigns has a Kin Score of 63.4 out of 100 (strong) and an Agent Readiness score of 33.5 (agent-ready), scored by API Evangelist on 2026-11-06.

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