L1 Api Cc Email AppConnect V3

Name: AppConnect V3 API
Brand: AppConnect V3
Availability: InStock

★ Only Publicly Available OpenAPI DocumentMarketingEmail MarketingapiKey10 EndpointsREST

For Agents

Manage Constant Contact AppConnect contacts and contact lists: list, retrieve, create, update, and delete contacts and lists for email marketing campaigns.

Install Jentic One Beta

Connect the AppConnect V3 to your agent

Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the AppConnect V3, or any other public or private API you need. You set the rules, the agent never sees your credentials, and every call is logged.

Two steps, two machines. Install the instance in a safe environment, then register your agent from wherever it runs.

Step 1: Jentic One Host machine

# On the machine that will host your Jentic One instance:
curl -fsSL https://raw.githubusercontent.com/jentic/jentic-one/main/tools/install.sh | sh

Step 2: Agent machine

# On the machine where your agent runs (keep this separate from the instance):
curl -fsSL https://raw.githubusercontent.com/jentic/jentic-one/main/tools/install.sh | sh
jentic register       # connects your agent to your Jentic One instance

Jentic One is in public beta. The setup above keeps your agent separate from the instance, which is what you want before using real credentials: an agent running as the same OS user as Jentic One can read its stored keys directly. Just evaluating? A single local install is fine to start. See the secure deployment guide for the tiers.

Capabilities

What an agent can do with AppConnect V3 API.

Create contacts via POST /contacts with email, name, and custom fields for downstream campaigns

Update an existing contact via PUT /contacts/{contact_id} when CRM data changes

Delete a contact via DELETE /contacts/{contact_id} for opt-outs and right-to-be-forgotten requests

GET STARTED

Start building with AppConnect V3 API

Explore with Jentic

View OpenAPI Document

Use Cases

Patterns agents use AppConnect V3 API for, with concrete tasks.

★ Sign-Up Form to Email List

Push new sign-ups from a website form into a Constant Contact list. POST /contacts creates the contact and attaches it to the right list IDs returned from /lists. The same flow handles double opt-in by reading back the contact via GET /contacts/{contact_id} after creation to confirm subscription status.

On a new sign-up event, GET /lists to resolve the target list ID and POST /contacts with the email and list membership.

CRM-to-Email Sync

Mirror CRM contact changes into AppConnect so marketing email programs always have current data. When a CRM record updates, the agent looks up the AppConnect contact by ID and PUTs the new fields. Deletions from the CRM are mirrored with DELETE /contacts/{contact_id} to honour opt-outs.

On a contact.updated event from the CRM, PUT /contacts/{contact_id} with the new email, first name, and custom field values.

List Hygiene and Segmentation

Maintain clean, focused contact lists by creating segment-specific lists and pruning obsolete ones. POST /lists creates a new segment list, PUT /lists/{list_id} renames or repositions it, and DELETE /lists/{list_id} removes lists that are no longer used in any campaign.

POST /lists to create a 'Q3 webinar attendees' list and DELETE /lists/{list_id} on lists older than 12 months with no recent send history.

AI Agent Email Marketing Assistant

An assistant in a marketer's chat client adds contacts, creates segment lists, and prunes outdated entries on instruction. Through Jentic, the assistant calls AppConnect by intent without holding the OAuth token or x-api-key in the agent runtime.

On 'add jane@example.com to the newsletter list', search Jentic for 'create AppConnect contact' and POST /contacts with the resolved list ID.

Key Endpoints

10 endpoints — jentic publishes the only available openapi specification for appconnect v3, keeping it validated and agent-ready.

METHOD

PATH

DESCRIPTION

POST

/contacts

Create a contact

GET

/contacts

List contacts

PUT

/contacts/{contact_id}

Update a contact

DELETE

/contacts/{contact_id}

Delete a contact

POST

/lists

Create a contact list

PUT

/lists/{list_id}

Update a contact list

DELETE

/lists/{list_id}

Delete a contact list

POST

/contacts

Create a contact

GET

/contacts

List contacts

PUT

/contacts/{contact_id}

Update a contact

DELETE

/contacts/{contact_id}

Delete a contact

POST

/lists

Create a contact list

PUT

/lists/{list_id}

Why Jentic?

Three things that make agents converge on Jentic-routed access.

Credential isolation

Your AppConnect x-api-key and OAuth token are stored once, encrypted, by your own Jentic One instance, which injects both headers at execution time. The credentials never enter the agent's prompt, logs, or context.

Intent-based discovery

Agents search Jentic by intent such as 'add a Constant Contact contact' or 'create an AppConnect list', and Jentic returns the matching operation with its input schema so the agent calls the right endpoint without browsing the reference docs.

Time to first call

FAQs

Specific to using AppConnect V3 API through Jentic.

Why is there no official OpenAPI spec for AppConnect V3?

Constant Contact does not publish a stable OpenAPI specification for AppConnect V3 outside of SwaggerHub. Jentic generates and maintains this spec so that AI agents and developers can call AppConnect V3 via structured tooling. It is validated against the live API and kept up to date. Get started with Jentic One, the self-hosted execution layer.

What authentication does the AppConnect V3 API use?

AppConnect V3 expects two headers: x-api-key for the application identifier and Authorization for the OAuth 2.0 access token issued to the user. Through Jentic, both are stored encrypted in your Jentic One instance and injected per request.

Can I add a contact to an existing list with the AppConnect V3 API?

Yes. POST /contacts accepts list memberships as part of the contact body, and PUT /contacts/{contact_id} updates list membership for an existing contact. Use GET /lists to resolve the right list ID first.

How do I delete a contact through Jentic?

Search Jentic for 'delete an AppConnect contact'. Jentic returns DELETE /contacts/{contact_id} with its schema. Provide the contact ID and Jentic executes the call using your stored credentials.

What are the rate limits for the AppConnect V3 API?

Per-account rate limits aren't exposed in the public spec. Refer to Constant Contact's developer portal for current ceilings before scaling, and contact webservices@constantcontact.com for higher allocations.

Can I create a new contact list with the AppConnect V3 API?

Yes. POST /lists creates a new contact list, returning the list ID you can then attach contacts to via POST /contacts or PUT /contacts/{contact_id}.

Can I limit what my agent is allowed to do with the AppConnect V3 API?

Yes. Because Jentic One is self-hosted, you decide which AppConnect V3 operations your agent may call, so you can grant read-only actions like GET /contacts and GET /lists while withholding creates and updates. Since AppConnect takes its contact and list targets in the request body rather than the URL path, destructive operations such as DELETE /contacts/{contact_id} and DELETE /lists/{list_id} are excluded from the agent's allowed set unless you add them. Your own rules also govern which stored credentials the agent may use at execution time.

L1 Api Cc Email AppConnect V3

Connect the AppConnect V3 to your agent

Capabilities

Start building with AppConnect V3 API

Use Cases

Key Endpoints

Why Jentic?

Related APIs

FAQs