Act-On
Act-On Software is a cloud-based marketing automation platform used by B2B and B2C marketing teams for email marketing, lead generation and nurturing, landing pages and forms, website visitor tracking, lead scoring and segmentation, custom data, and campaign reporting. Act-On publishes four OpenAPI 3.1 documents through its developer portal covering 158 operations on one gateway host (https://api.actonsoftware.com, with an EU region at api-eu.actonsoftware.com): the legacy form-encoded /api/1 surface, the newer JSON Act-On Contacts layer at /ucl/v2, a transactional email endpoint at /ete/v1, and a separately versioned Custom Objects Service at /custom-objects/v1 that is in request-only beta. Authentication is OAuth 2.0 with password, refresh_token and authorization_code grants and no scopes. Act-On also ships a signed outgoing-webhook event surface with nineteen documented event types. Added to the API Evangelist network from a Norwest Venture Partners portfolio lead and enriched from Act-On's public developer surface.
Solid contracts, transparent operations, and an easy start — typically complete on four or five facets with one clear soft spot.
API Evangelist profiles Act-On the way a machine reads it — 37 machine-readable artifacts across 8 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Act-On scores 57.1/100 (strong), with a separate agent-readiness read of 37/100 (agent ready). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance. Every facet and dimension name is a link: it opens that measurement's page on APIs.io, where the rating runs across the whole catalog — the exact checks that feed it, how every profiled provider distributes on it, and who is at the top of it.
Kin Score
How this is scored →scored 2026-09-10 · rubric v0.20.0
Put this on your own site. The badge is drawn live from Act-On's current Kin Score — paste it once and it updates itself every time the score is recomputed. It follows your visitor's light or dark setting, and it links back here so anyone who sees it can read the full breakdown.
<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/act-on/"
title="Act-On on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/act-on.svg"
alt="Act-On Kin Score — API readiness rating by API Evangelist" width="150" height="150" loading="lazy">
</a>[](https://providers.apievangelist.com/providers/act-on/)<!-- Kin Score · API Evangelist -->
<a href="https://providers.apievangelist.com/providers/act-on/"
title="Act-On on API Evangelist — API profile and Kin Score">
<img src="https://apis.io/badge/act-on/card.svg"
alt="Act-On Kin Score — API readiness rating by API Evangelist" width="340" height="120" loading="lazy">
</a>More shapes, themes and sizes → · Score as JSON · How badges work
How we profile Act-On
Each block below is one kind of artifact we hold for Act-On. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 26
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
Act-On Outgoing Webhooks
Outgoing webhook event surface — nineteen documented event types across contacts, consent, deliverability, lead scoring, subscriptions, automated programs, messaging, forms and ...
Act-On Account API
The Account API from Act-On — 1 operation(s) for account.
Act-On Campaigns API
The Campaigns API from Act-On — 2 operation(s) for campaigns.
Act-On Custom Data Dataset API
Custom Data Dataset API
Act-On Custom Data Query API
Custom Data Query API
Act-On Custom Data Schema API
Custom Data Schema API
Act-On Customevents API
The Customevents API from Act-On — 2 operation(s) for customevents.
Act-On Ete API
The Ete API from Act-On — 1 operation(s) for ete.
Act-On Footer API
The Footer API from Act-On — 3 operation(s) for footer.
Act-On Form API
The Form API from Act-On — 3 operation(s) for form.
Act-On Header API
The Header API from Act-On — 3 operation(s) for header.
Act-On Image API
The Image API from Act-On — 2 operation(s) for image.
Act-On List API
The List API from Act-On — 13 operation(s) for list.
Act-On Logo API
The Logo API from Act-On — 2 operation(s) for logo.
Act-On Media API
The Media API from Act-On — 7 operation(s) for media.
Act-On Medialink API
The Medialink API from Act-On — 1 operation(s) for medialink.
Act-On Message API
The Message API from Act-On — 8 operation(s) for message.
Act-On Page API
The Page API from Act-On — 4 operation(s) for page.
Act-On Program API
The Program API from Act-On — 1 operation(s) for program.
Act-On Seokeywords API
The Seokeywords API from Act-On — 1 operation(s) for seokeywords.
Act-On Seoreport API
The Seoreport API from Act-On — 1 operation(s) for seoreport.
Act-On Subscription API
The Subscription API from Act-On — 3 operation(s) for subscription.
Act-On Token API
The Token API from Act-On — 1 operation(s) for token.
Act-On Token?grant Type=password API
The Token?grant Type=password API from Act-On — 1 operation(s) for token?grant type=password.
Act-On Ucl API
The Ucl API from Act-On — 30 operation(s) for ucl.
Act-On User API
The User API from Act-On — 3 operation(s) for user.
Scroll within the panel for all 26 ·
Open Collections 4
Open, tool-agnostic collections carry the same runnable value as Postman without locking you to one client — the portable, forkable form of the same exercise.
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
Custom Objects Service
OPEN COLLECTIONoauth
OPEN COLLECTIONact-on-api-raw-body
OPEN COLLECTIONact-on-api-1
OPEN COLLECTIONPricing Plans 1
Pricing is part of the interface. Machine-readable plans tell you what a tier costs and includes before you commit — one of the things the Kin Score reads for access clarity — renamed from commercial clarity in rubric 0.12, because a free statutory interface has access terms and no commercial ones.
Published pricing tiers and plan structures.
Act On Plans Pricing
PLANSRate Limits 1
Rate limits are the difference between a demo that works and a production integration that doesn't fall over. Publishing them is an operational-transparency signal — and a hard requirement for any agent that plans its own throughput.
Documented rate limits and quota policies.
Act On Rate Limits
RATE LIMITSEvent Specifications 1
Not every API is request/response. AsyncAPI describes the event-driven and streaming side — the webhooks and channels — so the asynchronous half of the interface is documented the same way the synchronous half is.
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Act On Webhooks
ASYNCAPISecurity Posture 3
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Scopes 1
OAuth scopes are the vocabulary of least-privilege access. Profiling them shows exactly what an integration — or an agent acting on a user's behalf — is allowed to do.
OAuth scopes governing access to this provider's APIs.
Resources
Every other property we hold for Act-On — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 3
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 3
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 6
Pagination, idempotency, versioning, errors, and events
Access & Security 4
Authentication, authorization, and security posture
Operate 6
Status, limits, changes, and where to get help
Commercial 4
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API
Other 4
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/act-on · machine-readable index on apis.io
This is an independent, third-party profile of Act-On, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.
The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.
Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.
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