Act-On API
A self serve REST API at developer.act-on.com covers contacts, segments, programs, messages, and reports, with webhooks for form and program events. Admins generate keys in settings and a free developer account is open. Professional plans cap at 30,000 API calls a day.
Frequently asked questions
Act-On scores C+ on Supergood's API Report Card. A self serve REST API at developer.act-on.com covers contacts, segments, programs, messages, and reports, with webhooks for form and program events. Admins generate keys in settings and a free developer account is open. Professional plans cap at 30,000 API calls a day.
Act-On has an official API, but teams routinely hit its limits: gated access, partial coverage, or paid tiers. Most end up supplementing it with exports or an unofficial API layer like Supergood. Site terms may apply to any integration approach, and how they apply is a determination each team makes for itself.
Act-On is a cloud-based lifecycle marketing automation platform that combines email and SMS campaigns, multi-step automated programs (journeys), landing pages, forms, lead scoring, website visitor tracking, social publishing, event/webinar promotion, and bidirectional CRM sync into a single mid-market product.
Vertical: Marketing automation / email marketing (horizontal SaaS, not industry-specific). Marketers build email and SMS campaigns in a drag-and-drop composer, segment contacts using Act-On's segment builder (now Act-On Contacts), and orchestrate multi-step Automated Programs triggered by form fills, list membership, behavioral scores, website page visits, or CRM events.
Act-On reports roughly 4,000 customers and ~$16M-$44M in TTM revenue (the Banzai acquisition press release cited a combined TTM of $44M after the deal closed), placing it firmly in the mid-tier of the marketing automation market.
Yes, for any business that runs lifecycle marketing on it, Act-On is the system of record for the marketing engagement dataset: the full contact and account database with custom fields and segments, every behavioral event (page views, form submissions, content downloads, email opens/clicks, SMS interactions, webinar registrations and attendance), every Automated Program entry/exit and step history, lead and behavioral scores, the suppression and consent state for each contact, attribution and funnel-velocity report data, and the bidirectional sync state with the connected CRM (Salesforce/Dynamics/Sugar/NetSuite).
Founded in 2008 in Portland, Oregon by Raghu Raghavan (previously a co-founder of Responsys). Initially distributed exclusively through a $2M-funded Cisco partnership, then went direct.
Daily API call ceiling of 30,000/day on the Professional plan is restrictive for high-volume bidirectional CRM sync or product-event firehose use cases. Act-On is in the middle of a multi-year migration from legacy 'marketing lists' endpoints to the new 'Act-On Contacts' endpoints, forcing integrations to support both data models during the transition. Full sourced list under Sources below.
Common alternatives include HubSpot Marketing Hub, Marketo Engage (Adobe), Salesforce Marketing Cloud Account Engagement (Pardot), ActiveCampaign, Mailchimp (Intuit), Klaviyo. Graded alternatives appear under "More from the report card" below.
Supergood's grades measure one thing: can a customer's engineering team get their own data out programmatically? Supergood checks six things (whether a real API exists, how access is gated, data coverage, auth quality, docs and developer experience, and stability) and rolls them into a letter grade. Supergood re-verifies grades, and they only move on evidence.
Not that we could find. As of August 2026 there is no official Act-On MCP server in any public registry, and no maintained community server we're aware of. We re-verify this periodically — report an inaccuracy below if we missed one.
Not natively. Act-On doesn't publish an MCP server, so MCP clients like Claude, Cursor, and Codex have nothing to connect to out of the box. If that changes, this page will reflect it.