Constant Contact

Constant Contact is a small-business email and digital marketing platform offering email campaigns, automation, SMS, contact management, surveys, and events. The Constant Contact V3 API is a REST + JSON, OAuth2-protected service published at api.cc.email/v3 covering accounts, contacts, lists, tags, custom fields, segments, email campaigns, A/B tests, schedules and tests, bulk activities (CSV/JSON import, export, list and tag mutations), events with registration and check-in, reporting, and partner provisioning.

Constant Contact publishes 19 API contracts indexed on the APIs.io network, including Account Services API, Bulk Activities API, Lists API, and 16 more. Tagged areas include Campaigns, Contacts, Email Marketing, Event, and Reporting.

The Constant Contact catalog on APIs.io includes 1 event-driven AsyncAPI specification, 1 JSON-LD context, and 2 Spectral governance rulesets.

Constant Contact’s developer surface includes authentication, developer portal, getting-started guide, API reference, support, engineering blog, changelog, and 34 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

70.9/100 exemplar ▬ flat Agent 32/100 agent ready Heartbeat 69/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessPaid

2 published contracts 4 Agent Skills 16 Features

Campaigns Contacts Email Marketing Event Reporting SMS Surveys Email

What this lets a business do 4

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Marketing Management

BC-400

AutomationsContacts ReportingEmail CampaignsEmail Campaigns AB TestsEmail ReportingEmail Scheduling

POST /emails POST /automations/workflows POST /emails/activities/{campaign_activity_id}/abtest GET /reports/email_reports/{campaign_activity_id}/tracking/opens

Customer Relationship Management

BC-420

ContactsSegments

GET /contacts POST /contacts GET /contacts/counts

Developer Platform & API Ecosystem Management

BC-4270

Technology Partners Webhooks

GET /partner/webhooks/subscriptions

Consumer Travel, Events & Local Services

AE-210

Events

POST /events/{event_id}/check_in/tickets PUT /events/{event_id}/tracks/{track_id}/registrations

What people ask Constant Contact 19

The questions people put to an LLM, and the jobs they hand an agent, that Constant Contact's APIs answer — each one linked to the operation that does it. Generated by API Evangelist

Constant Contact Bulk Activities API List bulk activities and their status “Which of my bulk jobs failed or timed out?” Check the status of one bulk activity “Has my contact import finished yet?” Export contacts to a CSV file “Can I export all my contacts to a CSV?” Download a finished contacts export file “Where do I download the CSV once my contact export is done?”

Constant Contact Email Reporting API Report clicks per link in an email “Which links in my email got the most unique clicks?” Report who an email was sent to “Which contacts was a particular email actually sent to?” Report every open of an email “Every time someone opened my email — when and on what device?” Report unique openers of an email “Who opened my email, counting each contact only once?”

Constant Contact Events API List events “Which events do I have, and what's their status?” Create a draft event with defaults “Can I create an event that already has a registration form and landing page?” Get one event's details “What are the details of a specific event?” Update an event “Can I change an event's title or time after it's live?”

Constant Contact Email Campaigns API List email campaigns “Which email campaigns have I created?” Create a new email campaign “How do I create an email campaign with custom HTML?” Get one email campaign “What's the status of a specific email campaign?” Delete an email campaign “Can I delete a campaign that's already scheduled?”

Constant Contact Contacts API Get one contact “What information do I have about a specific contact?” Update an existing contact “Can I change a contact's name or email by their contact ID?” Delete a single contact “What happens to a contact after I delete them — can they come back?” Search and list contacts “Which contacts have unsubscribed since last month?”

Constant Contact Technology Partners API List partner client accounts “Which client accounts are managed under my partner account?” Create a partner client account “Can I create a new client account for a customer as a partner?” Get a client account's billing plan “What billing plan is a client account on?” Change a client account's billing plan “Can I upgrade a client account to a different plan?”

Constant Contact Account Services API Check what my access token is allowed to do “Which user privileges does my current access token carry?” Get my account summary details “What account details can I pull for my Constant Contact login, like organization name and time zone?” Update my account contact details “Can I change the contact email or phone number on my account?” Get the organization's physical address “What physical address is shown in the footer of my emails?”

Constant Contact Landing Pages Reporting API Report contacts who clicked landing page links “Which contacts clicked links on my landing page?” Report unique contacts who opened a landing page “Which contacts viewed my landing page, counting each once?” Report every landing page open by contacts “Each time a contact opened my landing page, when did it happen?” Report contacts who updated details on a landing page “Which contacts updated their information through my landing page?”

Constant Contact Email Scheduling API Check when an email is scheduled to send “When is my email scheduled to go out?” Send or schedule an email “Can I send an email right now or schedule it for later?” Unschedule an email “Can I stop a scheduled email from sending?” Send a test email “Can I send myself a test before the real send?”

Constant Contact Lists API Get one contact list “What are the details of a specific contact list?” Rename or edit a contact list “Can I rename a contact list or change its description?” Delete a single contact list “What happens to members when I delete one list?” List all contact lists “Which contact lists do I have in my account?”

Constant Contact Segments API List all segments “Which segments have I built?” Create a segment “Can I create a segment of contacts who clicked in the last 30 days?” Get one segment's criteria “What criteria define a particular segment?” Update a segment's name and criteria “Can I change the rules that define a segment?”

Constant Contact Tags API Get one tag's details “What are the details of a specific tag?” Rename a tag “Can I rename a tag I already created?” Delete a single tag “Does deleting one tag remove it from all my contacts?” List all tags “Which tags exist in my account?”

Showing 12 of 19 APIs with phrasing — see every API.

Kin Score

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

Composite quality — 70.9/100 · exemplar

Contract Quality 12.4 / 19

Developer Ergonomics 10.1 / 15

Access Clarity 10.7 / 15

Operational Transparency 7.2 / 10

Contract Governance 1.6 / 9

Discoverability 5.5 / 8

Regulatory Posture 5.3 / 15

Create-or-Update Ergonomics 6.1 / 10

Agent readiness — 32/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 6 / 6

Agent Skills 5 / 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 0 / 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 applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% 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
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
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Pagination +5 pts — share of collection GETs (an array, or one wrapped in data/items/results ...) that declare a page/limit/offset/cursor parameter, a Link header or a next/cursor field; na with no collection GETs
Protected Resource Metadata +5 pts — a served /.well-known/oauth-protected-resource carrying `resource` (documented), and naming its authorization_servers (verified)

4 more unmet checks in the Agent Readiness table above.

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

Contract Governance scores 18.2 — up to +9.8 composite points
Contract Quality scores 66.2 — up to +8.5 composite points
Developer Ergonomics scores 67.3 — up to +6.5 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/constant-contact/apis.yml: open an issue on github.com/api-evangelist/constant-contact 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 →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Surveys, Market Research and Experience Management	builds-on	53.5	-	-
Stripe App Marketplace and Partner Ecosystem (builders on Stripe)	builds-on	53.5	-	-
Zoom App Marketplace and Partner Ecosystem (builders and partners on Zoom)	builds-on	53.5	-	-
Wix App Market (third-party apps for Wix sites)	builds-on	53.5	-	-
IFTTT Services (service publishers)	builds-on	53.5	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

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.

OpenAPI

measured — observed by APIs.io (published)

OAuth 2.0

measured — observed by APIs.io (declared)

APIs 19

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

Constant Contact Account Services API

Use the account endpoints and methods to get account information.

Constant Contact Bulk Activities API

Bulk activities endpoints are used to manage large numbers of contacts, lists, and tags.

Constant Contact Lists API

Endpoints and methods to get, create, delete, and update one or more contact lists.

Constant Contact Tags API

Endpoints and methods to get, create, delete, and update one or more contact tags.

Constant Contact Contacts API

Endpoints and methods to get, create, delete, and update one or more contacts.

Constant Contact Contacts Custom Fields API

Endpoints and methods to get, create, delete, and update on one or more custom fields.

Constant Contact Contacts Reporting API

Contact reporting endpoints are used to gather activity reports for campaigns sent to a contact.

Constant Contact Email Campaigns AB Tests API

Use email campaigns A/B Test endpoints and methods to get, create, delete and update A/B tests.

Constant Contact Email Campaigns API

Use email campaign endpoints and methods to get, create, and update email campaigns.

Constant Contact Email Reporting API

Use the email reporting endpoints and methods to get reporting data for email campaigns you sent to contacts.

Constant Contact Email Scheduling API

Use email scheduling endpoints and methods to schedule an email campaign activity, unschedule an email campaign activity, and GET schedule information.

Constant Contact Events API

Endpoints and methods used to create and manage events.

Constant Contact Landing Pages Reporting API

Use landing pages reporting endpoints and methods to get reporting data about how a contact interacted with a campaign activity.

Constant Contact Segments API

Use segments to target a subset of your contacts that are most likely to engage with a particular campaign.

Constant Contact SMS Reporting API

Use SMS reporting endpoints and methods to get reporting data about SMS campaigns.

Constant Contact Technology Partners API

Use partner endpoints to manage client Constant Contact accounts under your partner account.

Constant Contact Technology Partners Webhooks API

Use partner webhooks to subscribe to billing event notifications from Constant Contact.

Constant Contact Automations API

Use the automation endpoints and methods to manage automation campaigns

Constant Contact Social API

The Social API from Constant Contact — 4 operation(s) for social.

Scroll for all 19

Open Collections 18

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

AppConnect V3 Account Services API

OPEN COLLECTION

AppConnect V3 Account Services Bulk Activities API

OPEN COLLECTION

AppConnect V3 Account Services Contact Lists API

OPEN COLLECTION

AppConnect V3 Account Services Contact Tags API

OPEN COLLECTION

AppConnect V3 Account Services Contacts API

OPEN COLLECTION

AppConnect V3 Account Services Contacts Custom Fields API

OPEN COLLECTION

AppConnect V3 Account Services Contacts Reporting API

OPEN COLLECTION

AppConnect V3 Account Services Email Campaigns AB Tests API

OPEN COLLECTION

AppConnect V3 Account Services Email Campaigns API

OPEN COLLECTION

AppConnect V3 Account Services Email Reporting API

OPEN COLLECTION

AppConnect V3 Account Services Email Scheduling API

OPEN COLLECTION

AppConnect V3 Account Services Events API

OPEN COLLECTION

AppConnect V3 Account Services Landing Pages Reporting API

OPEN COLLECTION

AppConnect V3 Account Services Segments API

OPEN COLLECTION

AppConnect V3 Account Services SMS Reporting API

OPEN COLLECTION

AppConnect V3 Account Services Technology Partners API

OPEN COLLECTION

AppConnect V3 Account Services Technology Partners Webhooks API

OPEN COLLECTION

AppConnect V3

OPEN COLLECTION

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Agent Skills 4

Packaged agent skills for driving this provider's APIs from an AI assistant.

constant-contact-bulk-import-contacts

AGENT SKILL

constant-contact-report-campaign-performance

AGENT SKILL

constant-contact-send-email-campaign

AGENT SKILL

constant-contact-subscribe-contact

AGENT SKILL

Constant Contact API pricing

Prices published by Constant Contact, read 2026-09-20 from community.constantcontact.com/ask-the-community/post/pric....

Plan	Price
Lite	Lite is $80/month Includes: 2,501-5,000 contact tier
Standard	Standard is $110/month Includes: 2,501-5,000 contact tier
Premium	Premium is $200/month Includes: 2,501-5,000 contact tier

Plan details, limits and sources →

Rate limits

Per-second throttle: 4 requests per second
Daily quota: 10000 requests per day
Queued bulk activities: 1000 queued activities

Rate-limit details →

Billed by: subscription · FinOps profile →

Pricing Plans 2

Published pricing tiers and plan structures.

Constant Contact Plans Pricing

3 plans

PLANS

Constant Contact Price Estimates

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Constant Contact 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.

Constant Contact

SLA

FinOps 1

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

Constant Contact Finops

FINOPS

Features 16

Notable capabilities this provider offers.

Lite: $12/mo for 500 contacts (jumps to $50/mo at 1K)

Standard: mid-tier with A/B testing, segmentation

Premium: $80/mo at 500 contacts with 24x email ratio

Email overages: $0.002 per additional email

REST API v3 at api.cc.email/v3

API limit: 4 req/sec, 10K req/day per app

OAuth 2.0

Webhooks for contact and campaign events

Contacts, lists, segments, custom fields

Email Templates and Drag-and-Drop editor

Marketing Automation (Standard+)

Surveys, landing pages, social media posts

Reporting on opens, clicks, bounces, conversions

E-commerce integrations (Shopify, WooCommerce, etc.)

Event marketing and registration

List building tools and lead capture

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Event Specifications 1

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

Constant Contact Webhooks

ASYNCAPI

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Constant Contact Context

0 classes · 8 properties

JSON-LD

Spectral Rules 2

Spectral governance rulesets for linting and validating these APIs.

Constant Contact — jsonschema rules

5 rules · 4 warnings 1 info

SPECTRAL

Constant Contact API Rules

9 rules · 3 errors 5 warnings 1 info

SPECTRAL

OpenAPI Overlays 36

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Constant Contact Account Services Api Overlay

4 actions · update · constant-contact-account-services-api-openapi.yml

DERIVED

Constant Contact Account Services Api Phrasing Overlay

9 actions · phrasing · constant-contact-account-services-api-openapi.yml

GENERATED

Constant Contact Automations Api Phrasing Overlay

5 actions · phrasing · constant-contact-automations-api-openapi.yml

GENERATED

Constant Contact Bulk Activities Api Overlay

4 actions · update · constant-contact-bulk-activities-api-openapi.yml

DERIVED

Constant Contact Bulk Activities Api Phrasing Overlay

15 actions · phrasing · constant-contact-bulk-activities-api-openapi.yml

GENERATED

Constant Contact Contact Lists Api Overlay

4 actions · update · constant-contact-contact-lists-api-openapi.yml

DERIVED

Constant Contact Contact Lists Api Phrasing Overlay

7 actions · phrasing · constant-contact-contact-lists-api-openapi.yml

GENERATED

Constant Contact Contact Tags Api Overlay

4 actions · update · constant-contact-contact-tags-api-openapi.yml

DERIVED

Constant Contact Contact Tags Api Phrasing Overlay

6 actions · phrasing · constant-contact-contact-tags-api-openapi.yml

GENERATED

Constant Contact Contacts Api Overlay

4 actions · update · constant-contact-contacts-api-openapi.yml

DERIVED

Constant Contact Contacts Api Phrasing Overlay

11 actions · phrasing · constant-contact-contacts-api-openapi.yml

GENERATED

Constant Contact Contacts Custom Fields Api Overlay

4 actions · update · constant-contact-contacts-custom-fields-api-openapi.yml

DERIVED

Constant Contact Contacts Custom Fields Api Phrasing Overlay

6 actions · phrasing · constant-contact-contacts-custom-fields-api-openapi.yml

GENERATED

Constant Contact Contacts Reporting Api Overlay

4 actions · update · constant-contact-contacts-reporting-api-openapi.yml

DERIVED

Constant Contact Contacts Reporting Api Phrasing Overlay

4 actions · phrasing · constant-contact-contacts-reporting-api-openapi.yml

GENERATED

Constant Contact Email Campaigns Ab Tests Api Overlay

4 actions · update · constant-contact-email-campaigns-ab-tests-api-openapi.yml

DERIVED

Constant Contact Email Campaigns Ab Tests Api Phrasing Overlay

4 actions · phrasing · constant-contact-email-campaigns-ab-tests-api-openapi.yml

GENERATED

Constant Contact Email Campaigns Api Overlay

4 actions · update · constant-contact-email-campaigns-api-openapi.yml

DERIVED

Constant Contact Email Campaigns Api Phrasing Overlay

12 actions · phrasing · constant-contact-email-campaigns-api-openapi.yml

GENERATED

Constant Contact Email Reporting Api Overlay

4 actions · update · constant-contact-email-reporting-api-openapi.yml

DERIVED

Constant Contact Email Reporting Api Phrasing Overlay

13 actions · phrasing · constant-contact-email-reporting-api-openapi.yml

GENERATED

Constant Contact Email Scheduling Api Overlay

4 actions · update · constant-contact-email-scheduling-api-openapi.yml

DERIVED

Constant Contact Email Scheduling Api Phrasing Overlay

7 actions · phrasing · constant-contact-email-scheduling-api-openapi.yml

GENERATED

Constant Contact Events Api Overlay

4 actions · update · constant-contact-events-api-openapi.yml

DERIVED

Constant Contact Events Api Phrasing Overlay

12 actions · phrasing · constant-contact-events-api-openapi.yml

GENERATED

Constant Contact Landing Pages Reporting Api Overlay

4 actions · update · constant-contact-landing-pages-reporting-api-openapi.yml

DERIVED

Constant Contact Landing Pages Reporting Api Phrasing Overlay

7 actions · phrasing · constant-contact-landing-pages-reporting-api-openapi.yml

GENERATED

Constant Contact Segments Api Overlay

4 actions · update · constant-contact-segments-api-openapi.yml

DERIVED

Constant Contact Segments Api Phrasing Overlay

7 actions · phrasing · constant-contact-segments-api-openapi.yml

GENERATED

Constant Contact Sms Reporting Api Overlay

4 actions · update · constant-contact-sms-reporting-api-openapi.yml

DERIVED

Constant Contact Sms Reporting Api Phrasing Overlay

2 actions · phrasing · constant-contact-sms-reporting-api-openapi.yml

GENERATED

Constant Contact Social Api Phrasing Overlay

5 actions · phrasing · constant-contact-social-api-openapi.yml

GENERATED

Constant Contact Technology Partners Api Overlay

4 actions · update · constant-contact-technology-partners-api-openapi.yml

DERIVED

Constant Contact Technology Partners Api Phrasing Overlay

9 actions · phrasing · constant-contact-technology-partners-api-openapi.yml

GENERATED

Constant Contact Technology Partners Webhooks Api Overlay

4 actions · update · constant-contact-technology-partners-webhooks-api-openapi.yml

DERIVED

Constant Contact Technology Partners Webhooks Api Phrasing Overlay

6 actions · phrasing · constant-contact-technology-partners-webhooks-api-openapi.yml

GENERATED

Scroll for all 36

JSON Schema 2

Standalone JSON Schema definitions for this provider's data models.

Constant Contact Email Campaign

8 properties

JSON SCHEMA

Constant Contact Contact

17 properties

JSON SCHEMA

JSON Structure 1

JSON Structure definitions describing this provider's data shapes.

Constant Contact Structure

0 properties

JSON STRUCTURE

Security Posture 2

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

Constant Contact Authentication

apiKey/oauth2 · 3 schemes

SECURITY

Constant Contact Domain Security

TLSv1.3 · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Constant Contact Scopes

6 scopes · implicit/authorizationCode

6 scopes

SCOPES

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Constant Contact Agentic Access

120 operations · 60 acting · 2 human-in-the-loop

120 operations · 60 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

Portal

Portal

GettingStarted

GettingStarted

Documentation 5

Reference material describing how the API behaves

APIReference

OpenAPI

JSONSchema

JSONSchema

Documentation

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 8

Pagination, idempotency, versioning, errors, and events

JSONLD

Spectral

Conventions

ErrorCatalog

Conformance

Lifecycle

DataModel

Webhooks

Scroll for all 8

Build 4

SDKs, sample code, and the tooling you integrate with

PostmanWorkspace

PostmanWorkspace

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

Access & Security 4

Authentication, authorization, and security posture

OAuthScopes

DomainSecurity

Authentication

Authentication

Operate 6

Status, limits, changes, and where to get help

StatusPage

Support

Community

ChangeLog

RateLimits

HelpCenter

Commercial 5

Pricing, plans, and the legal terms of use

FinOps

PrivacyPolicy

TermsOfService

Plans

Pricing

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Source (apis.yml)

aid: constant-contact
name: Constant Contact
url: https://raw.githubusercontent.com/api-evangelist/constant-contact/refs/heads/main/apis.yml
tags:
- Campaigns
- Contacts
- Email Marketing
- Event
- Reporting
- SMS
- Surveys
- Email
tags_raw:
- Campaigns
- Contacts
- Email Marketing
- Events
- Reporting
- SMS
- Surveys
- Email
type: Index
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: paid
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Paid
  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/constant-contact.png
access: 3rd-Party
created: '2025-03-01'
modified: '2026-09-16'
position: Consuming
specificationVersion: '0.23'
kind: company
description: Constant Contact is a small-business email and digital marketing platform offering email campaigns, automation,
  SMS, contact management, surveys, and events. The Constant Contact V3 API is a REST + JSON, OAuth2-protected service published
  at api.cc.email/v3 covering accounts, contacts, lists, tags, custom fields, segments, email campaigns, A/B tests, schedules
  and tests, bulk activities (CSV/JSON import, export, list and tag mutations), events with registration and check-in, reporting,
  and partner provisioning.
apis:
- aid: constant-contact:constant-contact-account-services-api
  name: Constant Contact Account Services API
  description: Use the account endpoints and methods to get account information.
  humanURL: https://developer.constantcontact.com/
  baseURL: https://api.cc.email/v3
  tags:
  - Account Services
  properties:
  - type: OpenAPI
    url: openapi/constant-contact-account-services-api-openapi.yml
  - type: Overlay
    url: overlays/constant-contact-account-services-api-overlay.yaml
  - type: Documentation
    url: https://developer.constantcontact.com/
  - type: GettingStarted
    url: https://developer.constantcontact.com/api_guide/index.html
  - type: Authentication
    url: https://developer.constantcontact.com/api_guide/auth_overview.html
- aid: constant-contact:constant-contact-bulk-activities-api
  name: Constant Contact Bulk Activities API
  description: Bulk activities endpoints are used to manage large numbers of contacts, lists, and tags.
  humanURL: https://developer.constantcontact.com/
  baseURL: https://api.cc.email/v3
  tags:
  - Bulk Activities
  properties:
  - type: OpenAPI
    url: openapi/constant-contact-bulk-activities-api-openapi.yml
  - type: Overlay
    url: overlays/constant-contact-bulk-activities-api-overlay.yaml
  - type: Documentation
    url: https://developer.constantcontact.com/
  - type: GettingStarted
    url: https://developer.constantcontact.com/api_guide/index.html
  - type: Authentication
    url: https://developer.constantcontact.com/api_guide/auth_overview.html
- aid: constant-contact:constant-contact-contact-lists-api
  name: Constant Contact Lists API
  description: Endpoints and methods to get, create, delete, and update one or more contact lists.
  humanURL: https://developer.constantcontact.com/
  baseURL: https://api.cc.email/v3
  tags:
  - Contact Lists
  properties:
  - type: OpenAPI
    url: openapi/constant-contact-contact-lists-api-openapi.yml
  - type: Overlay
    url: overlays/constant-contact-contact-lists-api-overlay.yaml
  - type: Documentation
    url: https://developer.constantcontact.com/
  - type: GettingStarted
    url: https://developer.constantcontact.com/api_guide/index.html
  - type: Authentication
    url: https://developer.constantcontact.com/api_guide/auth_overview.html
- aid: constant-contact:constant-contact-contact-tags-api
  name: Constant Contact Tags API
  description: Endpoints and methods to get, create, delete, and update one or more contact tags.
  humanURL: https://developer.constantcontact.com/
  baseURL: https://api.cc.email/v3
  tags:
  - Contact Tags
  properties:
  - type: OpenAPI
    url: openapi/constant-contact-contact-tags-api-openapi.yml
  - type: Overlay
    url: overlays/constant-contact-contact-tags-api-overlay.yaml
  - type: Documentation
    url: https://developer.constantcontact.com/
  - type: GettingStarted
    url: https://developer.constantcontact.com/api_guide/index.html
  - type: Authentication
    url: https://developer.constantcontact.com/api_guide/auth_overview.html
- aid: constant-contact:constant-contact-contacts-api
  name: Constant Contact Contacts API
  description: Endpoints and methods to get, create, delete, and update one or more contacts.
  humanURL: https://developer.constantcontact.com/
  baseURL: https://api.cc.email/v3
  tags:
  - Contacts
  properties:
  - type: OpenAPI
    url: openapi/constant-contact-contacts-api-openapi.yml
  - type: Overlay
    url: overlays/constant-contact-contacts-api-overlay.yaml
  - type: Documentation
    url: https://developer.constantcontact.com/
  - type: GettingStarted
    url: https://developer.constantcontact.com/api_guide/index.html
  - type: Authentication
    url: https://developer.constantcontact.com/api_guide/auth_overview.html
- aid: constant-contact:constant-contact-contacts-custom-fields-api
  name: Constant Contact Contacts Custom Fields API
  description: Endpoints and methods to get, create, delete, and update on one or more custom fields.
  humanURL: https://developer.constantcontact.com/
  baseURL: https://api.cc.email/v3
  tags:
  - Contacts Custom Fields
  properties:
  - type: OpenAPI
    url: openapi/constant-contact-contacts-custom-fields-api-openapi.yml
  - type: Overlay
    url: overlays/constant-contact-contacts-custom-fields-api-overlay.yaml
  - type: Documentation
    url: https://developer.constantcontact.com/
  - type: GettingStarted
    url: https://developer.constantcontact.com/api_guide/index.html
  - type: Authentication
    url: https://developer.constantcontact.com/api_guide/auth_overview.html
- aid: constant-contact:constant-contact-contacts-reporting-api
  name: Constant Contact Contacts Reporting API
  description: Contact reporting endpoints are used to gather activity reports for campaigns sent to a contact.
  humanURL: https://developer.constantcontact.com/
  baseURL: https://api.cc.email/v3
  tags:
  - Contacts Reporting
  properties:
  - type: OpenAPI
    url: openapi/constant-contact-contacts-reporting-api-openapi.yml
  - type: Overlay
    url: overlays/constant-contact-contacts-reporting-api-overlay.yaml
  - type: Documentation
    url: https://developer.constantcontact.com/
  - type: GettingStarted
    url: https://developer.constantcontact.com/api_guide/index.html
  - type: Authentication
    url: https://developer.constantcontact.com/api_guide/auth_overview.html
- aid: constant-contact:constant-contact-email-campaigns-ab-tests-api
  name: Constant Contact Email Campaigns AB Tests API
  description: Use email campaigns A/B Test endpoints and methods to get, create, delete and update A/B tests.
  humanURL: https://developer.constantcontact.com/
  baseURL: https://api.cc.email/v3
  tags:
  - Email Campaigns AB Tests
  properties:
  - type: OpenAPI
    url: openapi/constant-contact-email-campaigns-ab-tests-api-openapi.yml
  - type: Overlay
    url: overlays/constant-contact-email-campaigns-ab-tests-api-overlay.yaml
  - type: Documentation
    url: https://developer.constantcontact.com/
  - type: GettingStarted
    url: https://developer.constantcontact.com/api_guide/index.html
  - type: Authentication
    url: https://developer.constantcontact.com/api_guide/auth_overview.html
- aid: constant-contact:constant-contact-email-campaigns-api
  name: Constant Contact Email Campaigns API
  description: Use email campaign endpoints and methods to get, create, and update email campaigns.
  humanURL: https://developer.constantcontact.com/
  baseURL: https://api.cc.email/v3
  tags:
  - Email Campaigns
  properties:
  - type: OpenAPI
    url: openapi/constant-contact-email-campaigns-api-openapi.yml
  - type: Overlay
    url: overlays/constant-contact-email-campaigns-api-overlay.yaml
  - type: Documentation
    url: https://developer.constantcontact.com/
  - type: GettingStarted
    url: https://developer.constantcontact.com/api_guide/index.html
  - type: Authentication
    url: https://developer.constantcontact.com/api_guide/auth_overview.html
- aid: constant-contact:constant-contact-email-reporting-api
  name: Constant Contact Email Reporting API
  description: Use the email reporting endpoints and methods to get reporting data for email campaigns you sent to contacts.
  humanURL: https://developer.constantcontact.com/
  baseURL: https://api.cc.email/v3
  tags:
  - Email Reporting
  properties:
  - type: OpenAPI
    url: openapi/constant-contact-email-reporting-api-openapi.yml
  - type: Overlay
    url: overlays/constant-contact-email-reporting-api-overlay.yaml
  - type: Documentation
    url: https://developer.constantcontact.com/
  - type: GettingStarted
    url: https://developer.constantcontact.com/api_guide/index.html
  - type: Authentication
    url: https://developer.constantcontact.com/api_guide/auth_overview.html
- aid: constant-contact:constant-contact-email-scheduling-api
  name: Constant Contact Email Scheduling API
  description: Use email scheduling endpoints and methods to schedule an email campaign activity, unschedule an email campaign
    activity, and GET schedule information.
  humanURL: https://developer.constantcontact.com/
  baseURL: https://api.cc.email/v3
  tags:
  - Email Scheduling
  properties:
  - type: OpenAPI
    url: openapi/constant-contact-email-scheduling-api-openapi.yml
  - type: Overlay
    url: overlays/constant-contact-email-scheduling-api-overlay.yaml
  - type: Documentation
    url: https://developer.constantcontact.com/
  - type: GettingStarted
    url: https://developer.constantcontact.com/api_guide/index.html
  - type: Authentication
    url: https://developer.constantcontact.com/api_guide/auth_overview.html
- aid: constant-contact:constant-contact-events-api
  name: Constant Contact Events API
  description: Endpoints and methods used to create and manage events.
  humanURL: https://developer.constantcontact.com/
  baseURL: https://api.cc.email/v3
  tags:
  - Event
  tags_raw:
  - Events
  properties:
  - type: OpenAPI
    url: openapi/constant-contact-events-api-openapi.yml
  - type: Overlay
    url: overlays/constant-contact-events-api-overlay.yaml
  - type: Documentation
    url: https://developer.constantcontact.com/
  - type: GettingStarted
    url: https://developer.constantcontact.com/api_guide/index.html
  - type: Authentication
    url: https://developer.constantcontact.com/api_guide/auth_overview.html
- aid: constant-contact:constant-contact-landing-pages-reporting-api
  name: Constant Contact Landing Pages Reporting API
  description: Use landing pages reporting endpoints and methods to get reporting data about how a contact interacted with
    a campaign activity.
  humanURL: https://developer.constantcontact.com/
  baseURL: https://api.cc.email/v3
  tags:
  - Landing Pages Reporting
  properties:
  - type: OpenAPI
    url: openapi/constant-contact-landing-pages-reporting-api-openapi.yml
  - type: Overlay
    url: overlays/constant-contact-landing-pages-reporting-api-overlay.yaml
  - type: Documentation
    url: https://developer.constantcontact.com/
  - type: GettingStarted
    url: https://developer.constantcontact.com/api_guide/index.html
  - type: Authentication
    url: https://developer.constantcontact.com/api_guide/auth_overview.html
- aid: constant-contact:constant-contact-segments-api
  name: Constant Contact Segments API
  description: Use segments to target a subset of your contacts that are most likely to engage with a particular campaign.
  humanURL: https://developer.constantcontact.com/
  baseURL: https://api.cc.email/v3
  tags:
  - Segments
  properties:
  - type: OpenAPI
    url: openapi/constant-contact-segments-api-openapi.yml
  - type: Overlay
    url: overlays/constant-contact-segments-api-overlay.yaml
  - type: Documentation
    url: https://developer.constantcontact.com/
  - type: GettingStarted
    url: https://developer.constantcontact.com/api_guide/index.html
  - type: Authentication
    url: https://developer.constantcontact.com/api_guide/auth_overview.html
- aid: constant-contact:constant-contact-sms-reporting-api
  name: Constant Contact SMS Reporting API
  description: Use SMS reporting endpoints and methods to get reporting data about SMS campaigns.
  humanURL: https://developer.constantcontact.com/
  baseURL: https://api.cc.email/v3
  tags:
  - SMS Reporting
  properties:
  - type: OpenAPI
    url: openapi/constant-contact-sms-reporting-api-openapi.yml
  - type: Overlay
    url: overlays/constant-contact-sms-reporting-api-overlay.yaml
  - type: Documentation
    url: https://developer.constantcontact.com/
  - type: GettingStarted
    url: https://developer.constantcontact.com/api_guide/index.html
  - type: Authentication
    url: https://developer.constantcontact.com/api_guide/auth_overview.html
- aid: constant-contact:constant-contact-technology-partners-api
  name: Constant Contact Technology Partners API
  description: Use partner endpoints to manage client Constant Contact accounts under your partner account.
  humanURL: https://developer.constantcontact.com/
  baseURL: https://api.cc.email/v3
  tags:
  - Technology Partners
  properties:
  - type: OpenAPI
    url: openapi/constant-contact-technology-partners-api-openapi.yml
  - type: Overlay
    url: overlays/constant-contact-technology-partners-api-overlay.yaml
  - type: Documentation
    url: https://developer.constantcontact.com/
  - type: GettingStarted
    url: https://developer.constantcontact.com/api_guide/index.html
  - type: Authentication
    url: https://developer.constantcontact.com/api_guide/auth_overview.html
- aid: constant-contact:constant-contact-technology-partners-webhooks-api
  name: Constant Contact Technology Partners Webhooks API
  description: Use partner webhooks to subscribe to billing event notifications from Constant Contact.
  humanURL: https://developer.constantcontact.com/
  baseURL: https://api.cc.email/v3
  tags:
  - Technology Partners Webhooks
  properties:
  - type: OpenAPI
    url: openapi/constant-contact-technology-partners-webhooks-api-openapi.yml
  - type: Overlay
    url: overlays/constant-contact-technology-partners-webhooks-api-overlay.yaml
  - type: Documentation
    url: https://developer.constantcontact.com/
  - type: GettingStarted
    url: https://developer.constantcontact.com/api_guide/index.html
  - type: Authentication
    url: https://developer.constantcontact.com/api_guide/auth_overview.html
- aid: constant-contact:constant-contact-automations-api
  name: Constant Contact Automations API
  description: Use the automation endpoints and methods to manage automation campaigns
  humanURL: https://developer.constantcontact.com/
  baseURL: https://api.cc.email/v3
  tags:
  - Automation
  tags_raw:
  - Automations
  properties:
  - type: OpenAPI
    url: openapi/constant-contact-automations-api-openapi.yml
- aid: constant-contact:constant-contact-social-api
  name: Constant Contact Social API
  description: The Social API from Constant Contact — 4 operation(s) for social.
  humanURL: https://developer.constantcontact.com/
  baseURL: https://api.cc.email/v3
  tags:
  - Social
  properties:
  - type: OpenAPI
    url: openapi/constant-contact-social-api-openapi.yml
common:
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/constant-contact/overview
- type: FinOps
  url: finops/constant-contact-finops.yml
- type: CapabilityMap
  url: capabilities/constant-contact-capability-edges.yml
  name: Constant Contact Business Capability Map
- type: OAuthScopes
  url: scopes/constant-contact-scopes.yml
- type: AgenticAccess
  url: agentic-access/constant-contact-agentic-access.yml
- type: DomainSecurity
  url: security/constant-contact-domain-security.yml
- type: Authentication
  url: authentication/constant-contact-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/constant-contact
- type: Website
  url: https://www.constantcontact.com/
- type: Portal
  url: https://developer.constantcontact.com/
- type: GettingStarted
  url: https://developer.constantcontact.com/api_guide/index.html
- type: Authentication
  url: https://developer.constantcontact.com/api_guide/auth_overview.html
- type: APIReference
  url: https://developer.constantcontact.com/api_reference/index.html
- type: OpenAPI
  url: https://api.cc.email/v3/swagger.yaml
- type: StatusPage
  url: https://status.constantcontact.com/
- type: Support
  url: https://www.constantcontact.com/help
- type: Community
  url: https://community.constantcontact.com/
- type: Blog
  url: https://blogs.constantcontact.com/
- type: GitHubOrganization
  url: https://github.com/constantcontact
- type: PrivacyPolicy
  url: https://www.constantcontact.com/legal/privacy-statement
- type: TermsOfService
  url: https://www.constantcontact.com/legal/terms-of-use
- type: JSONLD
  url: json-ld/constant-contact-context.jsonld
- type: JSONSchema
  url: json-schema/constant-contact-contact-schema.json
- type: JSONSchema
  url: json-schema/constant-contact-campaign-schema.json
- type: Spectral
  url: rules/constant-contact-rules.yml
- type: Packages
  url: packages/constant-contact-packages.yml
- type: SDKs
  url: packages/constant-contact-packages.yml
- type: LLMsTxt
  url: llms/constant-contact-llms.txt
- type: Conventions
  url: conventions/constant-contact-conventions.yml
- type: ErrorCatalog
  url: errors/constant-contact-problem-types.yml
- type: Conformance
  url: conformance/constant-contact-conformance.yml
- type: Lifecycle
  url: lifecycle/constant-contact-lifecycle.yml
- type: ChangeLog
  url: changelog/constant-contact-changelog.yml
- type: DataModel
  url: data-model/constant-contact-data-model.yml
- type: Webhooks
  url: asyncapi/constant-contact-webhooks.yml
- type: AgentSkill
  url: skills/_index.yml
- type: RateLimits
  url: rate-limits/constant-contact-rate-limits.yml
- type: Plans
  url: plans/constant-contact-plans-pricing.yml
- type: Pricing
  url: https://www.constantcontact.com/pricing
- type: HelpCenter
  url: https://knowledgebase.constantcontact.com/
- type: Documentation
  url: https://developer.constantcontact.com/api_guide/index.html
- type: Features
  data:
  - 'Lite: $12/mo for 500 contacts (jumps to $50/mo at 1K)'
  - 'Standard: mid-tier with A/B testing, segmentation'
  - 'Premium: $80/mo at 500 contacts with 24x email ratio'
  - 'Email overages: $0.002 per additional email'
  - REST API v3 at api.cc.email/v3
  - 'API limit: 4 req/sec, 10K req/day per app'
  - OAuth 2.0
  - Webhooks for contact and campaign events
  - Contacts, lists, segments, custom fields
  - Email Templates and Drag-and-Drop editor
  - Marketing Automation (Standard+)
  - Surveys, landing pages, social media posts
  - Reporting on opens, clicks, bounces, conversions
  - E-commerce integrations (Shopify, WooCommerce, etc.)
  - Event marketing and registration
  - List building tools and lead capture
  sources:
  - https://www.constantcontact.com/pricing
  updated: '2026-05-04'
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-enrichment:
  date: '2026-08-13'
  status: enriched
  artifacts_added: 30
  pass: local-v1

Constant Contact API — frequently asked questions

Does Constant Contact have an API?

Yes. APIs.io lists 19 APIs from Constant Contact, including Constant Contact Account Services API, Constant Contact Bulk Activities API and Constant Contact Lists API, and 16 more.

Is there an OpenAPI specification for the Constant Contact API?

Yes. APIs.io indexes 19 OpenAPI specifications for Constant Contact, each linked for download from this page.

How do I authenticate with the Constant Contact API?

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

How much does the Constant Contact API cost?

Constant Contact publishes its prices; its Lite plan is Lite is $80/month as of 2026-09-20. APIs.io lists 3 pricing plans for Constant Contact, with each plan's price, limits and inclusions under Pricing on this page.

Is the Constant Contact API ready for AI agents?

Constant Contact has a Kin Score of 70.9 out of 100 (exemplar) and an Agent Readiness score of 32.1 (agent-ready), scored by API Evangelist on 2026-11-06.

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