Kapost website screenshot

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, and 8 more developer resources.

🌐 Visit website 📡 Source on GitHub
29.0/100 emerging ▬ flat Agent 15/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.5
AccessSelf serve
1 APIs
Content OperationsContent MarketingContent ManagementMarketingSales EnablementWebhooksREST APIB2BUpland Software

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.5
Composite quality — 29.0/100 · emerging
Contract Quality 5.7 / 25
Developer Ergonomics 10.4 / 20
Commercial Clarity 2.6 / 20
Operational Transparency 1.0 / 13
Governance 0.0 / 12
Discoverability 9.3 / 10
Agent readiness — 15/100 · agent aware
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
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 0 / 7
Typed Event Surface 6 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. 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. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

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

Kapost Content API

Versioned REST Content API for managing content, collections, ideas, initiatives, custom fields, tasks, users, and insights. HTTP Basic auth with a per-user API token (password ...

Event Specifications 1

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

Kapost Webhooks

ASYNCAPI

Security Posture 2

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

Kapost Authentication

http · 1 scheme

SECURITY

Kapost Domain Security

TLSv1.2

SECURITY

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted
 Login
Login

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 2

Pagination, idempotency, versioning, errors, and events

Webhooks
Webhooks
 Conventions
Conventions

Build 1

SDKs, sample code, and the tooling you integrate with

Packages
Packages

Access & Security 2

Authentication, authorization, and security posture

Authentication
Authentication
 DomainSecurity
DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support
Support

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: kapost
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  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: '0.20'
created: '2026-07-17'
modified: '2026-07-19'
tags:
- 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 for managing content, collections, ideas, initiatives, custom fields, tasks, users,
    and insights. HTTP Basic auth with a per-user API token (password ignored); JSON responses; uri-path versioning.
  humanURL: https://developer.kapost.com/
  baseURL: https://api.kapost.com/api/v1
  tags:
  - Content
  - Webhooks
  properties:
  - type: Documentation
    url: https://developer.kapost.com/
  - type: Authentication
    url: authentication/kapost-authentication.yml
  - type: Webhooks
    url: asyncapi/kapost-webhooks.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
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence