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Ghost

Ghost is an open-source (MIT) publishing platform for professional publications, newsletters, memberships, and paid subscriptions. It can be self-hosted for free or run as the managed Ghost(Pro) service, with all Ghost(Pro) revenue funding the non-profit Ghost Foundation. Every Ghost site exposes two documented public REST APIs under https://{site}/ghost/api/. The Content API is a read-only, key-authenticated interface for delivering published posts, pages, tags, authors, tiers, and settings to front-ends and static sites. The Admin API is a read-write, token-authenticated (JWT) interface for managing posts, pages, members, tags, tiers, offers, newsletters, users, media, themes, and webhooks.

agent ready

Limited machine-readable signal and partial portal coverage — documentation a human can read, but little a machine or agent can consume without scraping.

Kin Score

API Evangelist profiles Ghost the way a machine reads it — 26 machine-readable artifacts across 19 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 42.3/100 (thin), with a separate agent-readiness read of 48/100 (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 — 42.3/100 · thin
Contract Quality 13.2 / 25
Developer Ergonomics 4.3 / 20
Commercial Clarity 7.9 / 20
Operational Transparency 6.8 / 13
Governance 0.0 / 12
Discoverability 10.0 / 10
Agent readiness — 48/100 · 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 0 / 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 19

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 - Images API

Image uploads.

Ghost Admin - Labels API

Read-write member labels.

Ghost Admin - Members API

Read-write members.

Ghost Admin - Newsletters API

Read-write newsletters.

Ghost Admin - Offers API

Read-write promotional offers.

Ghost Admin - Pages API

Read-write pages.

Ghost Admin - Posts API

Read-write posts.

Ghost Admin - Site API

Read-only public site metadata.

Ghost Admin - Tags API

Read-write tags.

Ghost Admin - Themes API

Theme upload and activation.

Ghost Admin - Tiers API

Read-write subscription tiers.

Ghost Admin - Users API

Read-only staff users.

Ghost Admin - Webhooks API

Outbound webhook management.

Ghost Content - Authors API

Read-only authors.

Ghost Content - Pages API

Read-only published pages.

Ghost Content - Posts API

Read-only published posts.

Ghost Content - Settings API

Read-only public site settings.

Ghost Content - Tags API

Read-only tags.

Ghost Content - Tiers API

Read-only public subscription tiers.

Scroll within the panel for all 19 ·

Open Collections 1

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).

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.

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 Org Rate Limits

5 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.

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 Org Authentication

apiKey/http · 2 schemes

SECURITY

Ghost Org 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 Org Agentic Access

56 operations · 26 acting

56 operations · 26 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.

Documentation 1

Reference material describing how the API behaves

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Build 1

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 2

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-org · machine-readable index on apis.io