Kapost

Kapost is a content operations platform — now part of Upland Software — that lets B2B marketing teams plan, produce, distribute, and analyze content across the customer journey through its Canvas, Studio, Gallery, and Insights modules. Kapost exposes a versioned REST Content API (/api/v1) secured with HTTP Basic authentication using a per-user API token and returning JSON, plus outbound content webhooks (create/update/publish/delete), an XML-RPC interface, and a first-party WordPress plugin for publishing content from Kapost to WordPress sites. This profile was enriched from Kapost's live developer portal.

Kapost publishes 1 API on the APIs.io network. Tagged areas include Content Operations, Content Marketing, Content Management, Marketing, and Sales Enablement.

The Kapost catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Kapost’s developer surface includes documentation, API reference, getting-started guide, support, engineering blog, authentication, sandbox, and 18 more developer resources.

🌐 Visit website 📡 Source on GitHub

41.0/100 developing ▬ flat Agent 22/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

1 APIs

Content OperationsContent Marketing Content Management Marketing Sales Enablement Webhook REST API B2BUpland Software

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 41.0/100 · developing

Contract Quality 10.4 / 25

Developer Ergonomics 12.9 / 20

Access Clarity 6.6 / 20

Operational Transparency 1.4 / 13

Contract Governance 2.2 / 12

Discoverability 7.6 / 10

Agent readiness — 22/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 6 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/kapost: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

Kapost Content API

Versioned REST Content API with 67 documented operations across content, collections, comments, reminders, tasks, visibility, ideas, initiatives, custom fields, content types, d...

Pricing Plans 1

Published pricing tiers and plan structures.

Kapost Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Kapost Rate Limits

0 limits

RATE LIMITS

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Kapost Webhooks

ASYNCAPI

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Kapost Authentication

http · 1 scheme

SECURITY

Kapost Domain Security

TLSv1.2 · HSTS

SECURITY

Kapost Trust Center

SOC 2 Type 2, SOC 1 Type 2, ISO/IEC 27001:2022, PCI DSS, CSA STAR Level 1, GDPR, CCPA, PIPEDA, GLBA, EU-US Data Privacy Framework, Swiss-US Data Privacy Framework, UK Extension ...

SECURITY

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Login

Sandbox

Sandbox

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Webhooks

Conventions

Components

DataModel

Conformance

Lifecycle

Build 2

SDKs, sample code, and the tooling you integrate with

Packages

Packages

GitHubOrganization

GitHubOrganization

Access & Security 4

Authentication, authorization, and security posture

Authentication

DomainSecurity

Compliance

TrustCenter

Operate 2

Status, limits, changes, and where to get help

Support

Support

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

Plans

Plans

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: kapost
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - rate-limits
  - security
  - sandbox
  - url: https://kapost.com/
    status: 301
    note: declared website redirects to https://uplandsoftware.com:443/kapost/ — a different registrable domain (kapost.com
      -> uplandsoftware.com), possible rename or acquisition (probed 2026-09-03, roadmap#169)
  generated: '2026-09-03'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/kapost.png
name: Kapost
description: Kapost is a content operations platform — now part of Upland Software — that lets B2B marketing teams plan, produce,
  distribute, and analyze content across the customer journey through its Canvas, Studio, Gallery, and Insights modules. Kapost
  exposes a versioned REST Content API (/api/v1) secured with HTTP Basic authentication using a per-user API token and returning
  JSON, plus outbound content webhooks (create/update/publish/delete), an XML-RPC interface, and a first-party WordPress plugin
  for publishing content from Kapost to WordPress sites. This profile was enriched from Kapost's live developer portal.
url: https://raw.githubusercontent.com/api-evangelist/kapost/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- techstars
x-tier: enriched
x-tier-reason: live-developer-portal
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-08-13'
tags:
- Content Operations
- Content Marketing
- Content Management
- Marketing
- Sales Enablement
- Webhook
- REST API
- B2B
- Upland Software
tags_raw:
- Content Operations
- Content Marketing
- Content Management
- Marketing
- Sales Enablement
- Webhooks
- REST API
- B2B
- Upland Software
apis:
- name: Kapost Content API
  description: Versioned REST Content API with 67 documented operations across content, collections, comments, reminders,
    tasks, visibility, ideas, initiatives, custom fields, content types, destinations, memberships, users and insights. HTTP
    Basic auth with a per-user API token (password ignored); JSON responses wrapped in a response/count/pagination envelope;
    page/per_page pagination; basic/full/dynamic response detail levels; uri-path versioning. The callable base URL is the
    customer's own instance subdomain (https://{instance}.kapost.com/api/v1) — there is no shared API host. The developer
    portal ships a live "Try it" API playground for every endpoint. No OpenAPI specification is published.
  humanURL: https://developer.kapost.com/
  baseURL: https://api.kapost.com/api/v1
  tags:
  - Content
  - Webhook
  tags_raw:
  - Content
  - Webhooks
  properties:
  - type: Documentation
    url: https://developer.kapost.com/
  - type: APIReference
    url: https://developer.kapost.com/content-api-responses
  - type: Authentication
    url: authentication/kapost-authentication.yml
  - type: Webhooks
    url: asyncapi/kapost-webhooks.yml
  - type: Conventions
    url: conventions/kapost-conventions.yml
  - type: DataModel
    url: data-model/kapost-data-model.yml
  - type: Sandbox
    url: sandbox/kapost-sandbox.yml
  - type: RateLimits
    url: rate-limits/kapost-rate-limits.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://kapost.com/
- type: DeveloperPortal
  url: https://developer.kapost.com/
- type: Documentation
  url: https://developer.kapost.com/
- type: APIReference
  url: https://developer.kapost.com/content-api-responses
- type: GettingStarted
  url: https://developer.kapost.com/api-getting-started
- type: Integrations
  url: https://apps.kapost.com/
- type: Login
  url: https://app.kapost.com/users/sign_in
- type: Support
  url: https://support.uplandsoftware.com/portal/ss/login
- type: Blog
  url: https://uplandsoftware.com/kapost/resources/blog/
- type: Authentication
  url: authentication/kapost-authentication.yml
- type: Webhooks
  url: asyncapi/kapost-webhooks.yml
- type: Conventions
  url: conventions/kapost-conventions.yml
- type: Packages
  url: packages/kapost-packages.yml
- type: DomainSecurity
  url: security/kapost-domain-security.yml
- type: LLMsTxt
  url: llms/kapost-llms.txt
- type: PrivacyPolicy
  url: https://uplandsoftware.com/privacy/
- type: GitHubOrganization
  url: https://github.com/kapost
- type: Sandbox
  url: sandbox/kapost-sandbox.yml
- type: Components
  url: components/kapost-components.yml
- type: DataModel
  url: data-model/kapost-data-model.yml
- type: Conformance
  url: conformance/kapost-conformance.yml
- type: Compliance
  url: https://trust.uplandsoftware.com/
- type: TrustCenter
  url: security/kapost-trust-center.yml
- type: Lifecycle
  url: lifecycle/kapost-lifecycle.yml
- type: Plans
  url: plans/kapost-plans-pricing.yml
- type: RateLimits
  url: rate-limits/kapost-rate-limits.yml
x-enrichment:
  date: '2026-08-13'
  status: enriched
  artifacts_added: 9
  pass: local-v1

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