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ActiveCampaign, a cloud-based marketing automation platform, helps organizations automate various aspects of their marketing, sales, and customer experience processes.
While you can benefit from ActiveCampaign’s standalone features and capabilities in a variety of ways, you can get even more value from the software by integrating it with your product or your internal applications.
To do so, you’ll first need to procure your unique API key. We’ll break down the steps for doing exactly that below!
Go to the ActiveCampaign login page and login using your credentials. If you don’t have an account, you can type your email address in the top right corner and click “Try it for free” for a 14-day free trial.

Related: How to integrate your marketing automation solution with other applications
Once logged in, navigate to the "Settings" section. You can usually find this in the top right corner of the dashboard.

Within the "Settings" menu, look for the “Developer” section in the left-hand sidebar.

Related: 3 steps for retrieving your API key in Insightly
Once you click “Developer,” your API key and URL will appear front and center.

Before integrating with ActiveCampaign’s API, it’s worth considering other items:
ActiveCampaign has 4 pricing tiers for their marketing and sales segments, as well as bundles. We'll just focus on their marketing segment, but you can dig deeper into their pricing here.

ActiveCampaign comes with an API rate limit of 5 requests per second per account. However, they do offer a custom rate limit solution for those that need it. You can learn more in their docs.
Related: How to stop getting rate limited by APIs
The most common errors the API uses are:
You can learn more about ActiveCampaign’s error codes here.
Many of your customers use other marketing automation tools, like Hubspot, Customer.io, and Klaviyo.
You can offer integrations with any of the other CRM solutions your clients use by building to Merge’s Marketing Automation Unified API.
To learn more about the API, and Merge’s platform more broadly, you can schedule a demo with one of our integration experts!