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
| Category | Weight this run | Ghost | Kontent.ai | Edge |
|---|---|---|---|---|
| Reliability | 16%20 | 80 | 82 | Kontent.ai +2 |
| Performance | 10%pending | pending | pending | not scored in this run |
| Schema & documentation | 13%16.2 | 51 | 74 | Kontent.ai +23 |
| Agent ergonomics | 13%16.2 | 69 | 71 | Kontent.ai +2 |
| Security & auth | 14%17.5 | 56 | 81 | Kontent.ai +25 |
| Payments & pricing | 10%12.5 | 50 | 20 | Ghost +30 |
| Task success | 10%pending | pending | pending | not scored in this run |
| Maintenance & community | 7%8.8 | 85 | 83 | Ghost +2 |
| Transparency & trust | 7%8.8 | 72 | 75 | Kontent.ai +3 |
| Negative events | ≤15 | -7 | 0 | |
| Total | 58.3 · C | 70.5 · BB |
Facts side by side
| Fact | Ghost | Kontent.ai |
|---|---|---|
| Kind | HTTP API | HTTP API |
| Vendor | Ghost Foundation | Kontent CZ s.r.o. |
| Hosted endpoint | no (local only) | https://manage.kontent.ai/v2 |
| Transports | HTTP | HTTP, stdio, Streamable HTTP |
| Auth | API key | API key |
| Pricing | Freemium | Paid |
| x402 | no | no |
| Licence | MIT, copyright Ghost Foundation. Ghost(Pro) is a paid hosting service under the Ghost Foundation's terms | Proprietary service under the Kontent.ai Terms of Service. The management SDKs for JavaScript and .NET and the MCP server on GitHub are MIT |
| Tools exposed | none | 54 |
| Read-only variant documented | no | yes |
| llms.txt | yes | yes |
| MCP registry | not listed | io.github.kontent-ai/mcp-server |
| Last release | 2026-10-07 | 2026-10-02 |
| Terms last updated | no date given | 2026-09-11 |
| Privacy policy last updated | no date given | 2025-06-02 |
| Customer content may train models | not found in the text | not found in the text |
| Terms restrict automated access | yes | yes |
| Terms restrict benchmarking | not found in the text | yes |
| Terms or service can change without notice | not found in the text | not found in the text |
| Arbitration or class-action waiver | not found in the text | not found in the text |
| Popularity | 56k stars, 24k npm/wk | 8.4k 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
- Sign a fresh HS256 token for each batch of calls. Decode the hex secret to bytes, set
kidto the key id,audto/admin/andexpat most 5 minutes ahead - Set
statustodrafton every create unless told to publish, and publish later with a PUT that setsstatustopublished - GET the post before each PUT and send its
updated_atback. Tags and authors in a PUT replace the existing lists - Send content as a Lexical JSON string, or add
?source=htmland sendhtml. The HTML conversion is lossy unless wrapped in an HTML card - Page through lists with
limitup to 100 andpage. Since Ghost 6.0limit=allreturns 100 items without an error
Kontent.ai
- Send
Authorization: Bearer <key>tohttps://manage.kontent.ai/v2/projects/{environment_id}/.... The Management API must be switched on under Environment settings, General, Enabled APIs first - 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
- 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
- Page lists by passing the
continuation_tokenfrom the response back in thex-continuationheader - Create items with an
external_idand write with the upsert PUT at/items/external-id/{id}so a retry after a lost response does not create a duplicate - With the MCP server, call
get-patch-guidebefore 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.
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Machine-readable
- This page as Markdown
/compare/ghost-vs-kontent-ai.md· slim.min.md· JSON.json(or sendAccept: text/markdown) - Each listing in full
/api/v1/tools/ghost.json·/api/v1/tools/kontent-ai.json - From a terminal
anchor compare ghost kontent-ai(the CLI) - Over MCP
compare_tools {"a": "ghost", "b": "kontent-ai"}at/mcp, no key