ActiveCampaign API
ActiveCampaign exposes a documented REST v3 API plus a partner-gated GraphQL API for ecommerce. Any customer can generate an API key from settings, no approval needed. Deprecated v1 endpoints are still required for some legacy features, and rate limits sit at 5 req/sec.
Frequently asked questions
ActiveCampaign scores A on the API Report Card. ActiveCampaign exposes a documented REST v3 API plus a partner-gated GraphQL API for ecommerce. Any customer can generate an API key from settings, no approval needed. Deprecated v1 endpoints are still required for some legacy features, and rate limits sit at 5 req/sec.
ActiveCampaign has a workable official integration path. Most engineering teams can build against it directly. Open API: self-serve, documented, with SDKs
ActiveCampaign is a cloud-based marketing automation, email marketing, and CRM platform that bundles email/SMS/WhatsApp campaigns, behavioral automation workflows, sales pipeline CRM, transactional email, landing pages, forms, segmentation, lead scoring, and reporting into a single SMB/mid-market product.
Vertical: Marketing automation / email marketing / CRM (horizontal SaaS, not industry-specific). Marketers build email and SMS campaigns in a drag-and-drop designer, segment contacts by behavior and CRM properties, and chain together visual automations triggered by site events, form submissions, tag changes, deal stages, ecommerce purchases, or API calls.
ActiveCampaign reports 180,000+ customers in 170+ countries and holds 4.4/5 across 14,609 reviews on G2, making it one of the most-reviewed marketing automation platforms on the site.
Yes, for any business that runs lifecycle marketing on it, ActiveCampaign is the system of record for the entire customer engagement dataset: the full contact database with custom fields and tags, every behavioral event (page views, site events, custom API events), every email/SMS/WhatsApp send with open/click/reply history, every automation entry/exit, the bundled CRM (deals, pipelines, owners, notes, tasks, lead scores), ecommerce orders and product data synced from Shopify/WooCommerce/BigCommerce, form submissions and landing page conversions, subscription/consent status, and, for Postmark users, the transactional email stream too.
Founded 2003 in Chicago by Jason VandeBoom as an on-prem email tool; relaunched as a SaaS marketing automation platform in 2013. Raised a $100M Series B from Silversmith in 2018 and a $240M Series C in 2021 at a $3B valuation.
Rate limits are aggressive (5 requests/sec per account) and not raisable on lower-tier plans, breaking high-volume sync jobs. API v1 is deprecated but still required for several legacy endpoints (notably some ecommerce and account features), forcing dual-version integrations. Full sourced list under Sources below.
Common alternatives include HubSpot, Mailchimp (Intuit), Klaviyo, Salesforce Marketing Cloud / Pardot, Constant Contact, Brevo (Sendinblue). Graded alternatives appear under "More from the report card" below.
Grades measure one thing: can a customer's engineering team get their own data out programmatically? We check six things (whether a real API exists, how access is gated, data coverage, auth quality, docs and developer experience, and stability) and roll them into a letter grade. Grades get re-verified, and they only move on evidence.