ActiveCampaign connector

The activecampaign MCP adapter wraps ActiveCampaign API v3. Use it to sync contacts, manage list subscriptions, and update CRM records from agent workflows.

Prerequisites

An ActiveCampaign account with API access
API URL and token from Settings → Developer → API in ActiveCampaign
project_contributor access

Connect in AgentRuntime

Get API credentials

In ActiveCampaign, go to Settings → Developer → API. Copy your API URL (e.g. https://youraccount.api-us1.com) and API token.

Create a connection

Go to Connections, click New custom connection, and select ActiveCampaign (or generic API key), and paste your API URL and token.

Add activecampaign MCP instance

Go to MCP, click Add instance for activecampaign, wire your connection on Instance config, and set the profile active.

Verify with get_users_me

Run a test workflow with an mcp_call to activecampaign_get_users_me to confirm authentication.

What you can build

Lead capture — Form webhook → activecampaign_create_contact → subscribe to nurture list.
Tag-based routing — activecampaign_add_tag_to_contact after LLM scores lead intent from chat transcript.
Account sync — activecampaign_create_account + activecampaign_add_contact_to_account when a deal closes in your CRM sheet.
Health check — Scheduled activecampaign_get_users_me + activecampaign_list_contacts count for monitoring dashboards.

Tools

Tool	Description
`activecampaign_get_users_me`	Validate API credentials
`activecampaign_create_contact`	Create a new contact
`activecampaign_update_contact`	Update an existing contact
`activecampaign_list_contacts`	List contacts with filters
`activecampaign_subscribe_or_unsubscribe_contact_from_list`	Add or remove a contact from a list
`activecampaign_add_tag_to_contact`	Tag a contact
`activecampaign_add_contact_to_account`	Link a contact to an account
`activecampaign_create_account`	Create an account
`activecampaign_update_account`	Update an account

Custom fields

Pass custom contact fields as a JSON array in field_values_json:

[
  {"field": "1", "value": "Enterprise"},
  {"field": "2", "value": "2026-06-01"}
]

Account custom fields use fields_json:

[
  {"customFieldId": 1, "fieldValue": "West region"}
]

Example

Sync a new lead from a form submission:

{
  "id": "create-lead",
  "type": "mcp_call",
  "name": "Create ActiveCampaign contact",
  "tool_name": "activecampaign_create_contact",
  "tool_args": {
    "email": "{{input.email}}",
    "first_name": "{{input.first_name}}",
    "last_name": "{{input.last_name}}",
    "field_values_json": "[{\"field\":\"1\",\"value\":\"{{input.source}}\"}]"
  },
  "timeout_s": 30
}

Follow with activecampaign_subscribe_or_unsubscribe_contact_from_list to add the contact to a marketing list.

Configuration

Key	Required	Description
`activecampaign_api_url`	Yes	Base URL without trailing slash
`activecampaign_api_token`	Yes	API token from Developer settings
`activecampaign_http_timeout_second`	No	HTTP timeout (default 45s)

Troubleshooting

Issue	Fix
`401 Unauthorized`	Regenerate API token; update connection
Wrong API region	Use the exact URL from your ActiveCampaign account (`api-us1`, `api-eu1`, etc.)
Custom field errors	Confirm field IDs match your account’s custom field definitions

Integrations quickstart
Shopify connector — sync customers after purchase
Connector catalog
Troubleshooting

Get started

Platform

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Guides

Integration setup

Connectors

AI & chat

API

ActiveCampaign connector

Prerequisites

Connect in AgentRuntime

What you can build

Tools

Custom fields

Example

Configuration

Troubleshooting

​Prerequisites

​Connect in AgentRuntime

​What you can build

​Tools

​Custom fields

​Example

​Configuration

​Troubleshooting

​Related

Prerequisites

Connect in AgentRuntime

What you can build

Tools

Custom fields

Example

Configuration

Troubleshooting

Related