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Ghost

Ghost is an open-source publishing platform with hosted (Ghost(Pro)) and self-hosted options. It exposes a write-capable Admin API and a read-only Content API plus webhooks.

agent ready

Real signal across most facets with visible, nameable gaps — the contract exists but is thin, or the portal is good while governance and commercial terms are absent.

Kin Score

API Evangelist profiles Ghost the way a machine reads it — 55 machine-readable artifacts across 16 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 — Ghost scores 52.9/100 (developing), with a separate agent-readiness read of 54/100 (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.

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 52.9/100 · developing
Contract Quality 18.7 / 25
Developer Ergonomics 4.3 / 20
Commercial Clarity 10.0 / 20
Operational Transparency 4.8 / 13
Governance 6.3 / 12
Discoverability 8.8 / 10
Agent readiness — 54/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 15 / 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 7 / 7
Typed Event Surface 6 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3

How we profile Ghost

Each block below is one kind of artifact we hold for Ghost. 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 16

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.

Ghost Admin API

The Ghost Admin API provides full read/write access to posts, pages, tags, tiers, newsletters, offers, members, users, images, themes, webhooks, and site configuration. Authenti...

Ghost Content API

The Ghost Content API is a read-only RESTful API for delivering published content (posts, pages, tags, authors, tiers, settings) to clients. It uses query-parameter Content API ...

Ghost Authors API

Authors represent the staff users who create content in a Ghost publication.

Ghost Images API

Upload images to the Ghost publication for use in posts, pages, and settings.

Ghost Members API

Manage publication members including creating, reading, updating, and deleting member records. Members are people who have signed up for the publication.

Ghost Newsletters API

Manage email newsletters that members can subscribe to. Each newsletter has its own design, sender details, and subscription list.

Ghost Offers API

Manage promotional offers for paid membership tiers, including discounts and trial periods.

Ghost Pages API

Create, read, update, and delete pages. Pages share the same structure as posts but are used for static content.

Ghost Posts API

Create, read, update, and delete posts. Posts are the primary content resource in Ghost and support rich content via the Lexical editor format.

Ghost Settings API

Settings provide access to global publication settings including title, description, navigation, and other configuration values.

Ghost Site API

Read basic information about the Ghost site.

Ghost Tags API

The Tags API from Ghost — 3 operation(s) for tags.

Ghost Themes API

Upload, activate, and manage themes that control the front-end appearance of the Ghost publication.

Ghost Tiers API

Manage membership tiers including creating, reading, and updating tier configurations with pricing and benefits.

Ghost Users API

Read staff user accounts for the Ghost publication.

Ghost Webhooks API

Create, update, and delete webhooks that send HTTP POST notifications when events occur within the publication.

Scroll within the panel for all 16 ·

Open Collections 2

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).

Ghost Admin API

OPEN COLLECTION

Ghost Content API

OPEN COLLECTION

GraphQL 1

Where a provider ships GraphQL, the schema is the contract. We profile it alongside the REST surface so the whole interface is legible in one place.

GraphQL schemas published by this provider.

Ghost GraphQL API

Ghost does not provide a native GraphQL API. Ghost exposes two RESTful HTTP APIs: the read-only Content API, intended for public browser clients, and the write-capable Admin API...

GRAPHQL

Pricing 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 six things the Kin Score reads for commercial clarity.

Published pricing tiers and plan structures.

Ghost Plans Pricing

5 plans

PLANS

Rate 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.

Ghost Rate Limits

3 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals let a buyer model the financial operations of an API before it's live. We profile them for the same reason we profile pricing: the money is part of the contract.

Cost, billing, and metering signals for API financial operations.

Ghost Finops

FINOPS

Event 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.

Ghost Webhooks

Ghost Webhooks allow developers to receive real-time HTTP notifications when specific events occur within a Ghost publication, such as publishing a new post, updating a page, or...

ASYNCAPI

Semantic Vocabularies 1

JSON-LD contexts give the data shared meaning across APIs. We profile them because semantics are what let a machine reconcile 'customer' here with 'customer' somewhere else.

JSON-LD contexts and semantic vocabularies used across these APIs.

Ghost Context

0 classes · 9 properties

JSON-LD

Spectral Rules 2

Governance rulesets we run against this provider's specs — the automated checks behind parts of the score. Profiling them makes the quality bar explicit and re-runnable, not a matter of opinion.

Ghost API Rules

9 rules · 1 errors · 8 warnings

SPECTRAL

Ghost API Rules

6 rules · 5 warnings

SPECTRAL

JSON Schema 25

Standalone JSON Schema definitions describe the data models behind the API. We profile them so the shapes are validatable on their own — useful long after a single request is forgotten.

Standalone JSON Schema definitions for this provider's data models.

Author

14 properties

JSON SCHEMA

ErrorResponse

1 properties

JSON SCHEMA

Label

5 properties

JSON SCHEMA

Ghost Member

16 properties

JSON SCHEMA

MemberInput

5 properties

JSON SCHEMA

NavigationItem

2 properties

JSON SCHEMA

Newsletter

28 properties

JSON SCHEMA

NewsletterInput

19 properties

JSON SCHEMA

Offer

17 properties

JSON SCHEMA

OfferInput

12 properties

JSON SCHEMA

Page

0 properties

JSON SCHEMA

PaginationMeta

1 properties

JSON SCHEMA

Ghost Post

40 properties

JSON SCHEMA

PostInput

28 properties

JSON SCHEMA

Settings

24 properties

JSON SCHEMA

Site

7 properties

JSON SCHEMA

Subscription

10 properties

JSON SCHEMA

Tag

21 properties

JSON SCHEMA

TagInput

8 properties

JSON SCHEMA

Theme

3 properties

JSON SCHEMA

Tier

15 properties

JSON SCHEMA

TierInput

10 properties

JSON SCHEMA

User

21 properties

JSON SCHEMA

Webhook

13 properties

JSON SCHEMA

WebhookInput

4 properties

JSON SCHEMA

Scroll within the panel for all 25 ·

JSON Structure 1

JSON Structure captures the data shapes in a form built for tooling — a complement to JSON Schema that keeps the model machine-legible.

JSON Structure definitions describing this provider's data shapes.

Ghost Structure

0 properties

JSON STRUCTURE

Security Posture 2

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.

Ghost Authentication

apiKey/http · 2 schemes

SECURITY

Ghost Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Agentic Access 1

An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.

Recommended x-agentic-access execution contracts for AI agents.

Ghost Agentic Access

56 operations · 24 acting

56 operations · 24 acting

AGENTIC

Resources

Every other property we hold for Ghost — 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 1

Portal, sign-up, and the first successful call

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

Build 2

SDKs, sample code, and the tooling you integrate with

Access & Security 2

Authentication, authorization, and security posture

Operate 2

Status, limits, changes, and where to get help

Commercial 3

Pricing, plans, and the legal terms of use

Company 3

The organization behind the API

← All providers · Data indexed from github.com/api-evangelist/ghost · machine-readable index on apis.io