Head to head · Content management · October 2026 research run

Ghost vs Kontent.ai

Kontent.ai scores 70.5 (BB) on agent readiness against Ghost's 58.3 (C), and leads in 5 of 7 scored categories. Ghost leads on payments & pricing. Both do content management.

Best headless CMS and website publishing for AI agents · All 91 cms comparisons

Which one, for what

Ghost C

Good for A publication, blog or newsletter where an agent drafts posts and a person or a higher role publishes.

Ahead on

  • Payments & pricing, 50 against 20

Also in its favour

  • Open source

Watch for

No OpenAPI or other machine-readable description of the Admin API was found in the docs or the repository

Kontent.ai BB

Good for A company already on Kontent.ai, or evaluating it on a trial, that wants an agent to draft, localise, move through workflow and publish structured content with a permission-limited key and an audit trail.

Ahead on

  • Schema & documentation, 74 against 51
  • Security & auth, 81 against 56

Also in its favour

  • Agent-ready, a grade of BB or better
  • A hosted endpoint, with nothing to install
  • Runs on your own machine
  • Free to start without a card
  • No incidents deducted, where Ghost loses 7 points for them

Watch for

No price is published. The pricing page shows sliders for seats, content types and items and a form that requests a quote

Score by category

CategoryWeight this runGhostKontent.aiEdge
Reliability16%208082Kontent.ai +2
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.25174Kontent.ai +23
Agent ergonomics13%16.26971Kontent.ai +2
Security & auth14%17.55681Kontent.ai +25
Payments & pricing10%12.55020Ghost +30
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.88583Ghost +2
Transparency & trust7%8.87275Kontent.ai +3
Negative events≤15-70
Total58.3 · C70.5 · BB

Facts side by side

FactGhostKontent.ai
KindHTTP APIHTTP API
VendorGhost FoundationKontent CZ s.r.o.
Hosted endpointno (local only)https://manage.kontent.ai/v2
TransportsHTTPHTTP, stdio, Streamable HTTP
AuthAPI keyAPI key
PricingFreemiumPaid
x402nono
LicenceMIT, copyright Ghost Foundation. Ghost(Pro) is a paid hosting service under the Ghost Foundation's termsProprietary service under the Kontent.ai Terms of Service. The management SDKs for JavaScript and .NET and the MCP server on GitHub are MIT
Tools exposednone54
Read-only variant documentednoyes
llms.txtyesyes
MCP registrynot listedio.github.kontent-ai/mcp-server
Last release2026-10-072026-10-02
Terms last updatedno date given2026-09-11
Privacy policy last updatedno date given2025-06-02
Customer content may train modelsnot found in the textnot found in the text
Terms restrict automated accessyesyes
Terms restrict benchmarkingnot found in the textyes
Terms or service can change without noticenot found in the textnot found in the text
Arbitration or class-action waivernot found in the textnot found in the text
Popularity56k stars, 24k npm/wk8.4k npm/wk

Verdicts

Ghost

A create needs only a title, updates are checked against updated_at so a stale write is refused, and a Contributor's staff token can draft without being able to publish. The Admin API has no OpenAPI file and one fixed permission set per integration, and 20 security advisories were published between 3 September and 1 October 2026.

Kontent.ai

Management API keys take per-area permissions, environment limits and an expiry from one minute to two years, and changes made with a key are named in the audit log. Rate limits and Retry-After are documented. No price is published, and no OpenAPI file was found. Access starts with a 30-day trial that a person opens in a browser.

Before you call either

Ghost

  1. Sign a fresh HS256 token for each batch of calls. Decode the hex secret to bytes, set kid to the key id, aud to /admin/ and exp at most 5 minutes ahead
  2. Set status to draft on every create unless told to publish, and publish later with a PUT that sets status to published
  3. GET the post before each PUT and send its updated_at back. Tags and authors in a PUT replace the existing lists
  4. Send content as a Lexical JSON string, or add ?source=html and send html. The HTML conversion is lossy unless wrapped in an HTML card
  5. Page through lists with limit up to 100 and page. Since Ghost 6.0 limit=all returns 100 items without an error

Kontent.ai

  1. Send Authorization: Bearer <key> to https://manage.kontent.ai/v2/projects/{environment_id}/.... The Management API must be switched on under Environment settings, General, Enabled APIs first
  2. Ask for a Management API key with only the permissions the task needs. Read content alone gives a read-only key, and keys expire after six months by default
  3. Stay under 10 requests a second and 400 a minute per environment, send requests one at a time, and wait the seconds in Retry-After on a 429
  4. Page lists by passing the continuation_token from the response back in the x-continuation header
  5. Create items with an external_id and write with the upsert PUT at /items/external-id/{id} so a retry after a lost response does not create a duplicate
  6. With the MCP server, call get-patch-guide before any patch tool, and use a client that prompts on destructiveHint

Questions

Which is better for AI agents, Ghost or Kontent.ai?

Kontent.ai scores 70.5 (BB) on agent readiness against Ghost's 58.3 (C), and leads in 5 of 7 scored categories. Ghost leads on payments & pricing.

Do Ghost and Kontent.ai need an API key?

Both need an API key.

Can an agent call Ghost and Kontent.ai without installing anything?

No hosted endpoint is listed for Ghost. Kontent.ai has a hosted endpoint at https://manage.kontent.ai/v2.

Are Ghost and Kontent.ai open source?

Ghost is open source (MIT, copyright Ghost Foundation. Ghost(Pro) is a paid hosting service under the Ghost Foundation's terms). No open-source release is listed for Kontent.ai.

Other comparisons with Ghost or Kontent.ai

Machine-readable

For companies

Do agents find, use and choose your tools?

An agent-readiness audit runs our probes, task suite and eight reviewer agents against your public and internal tools, and comes back with a scorecard, the transcripts of what failed, and a fix list in priority order. From $2,500, re-run included. We never take payment to move a rank. We do help companies earn one.