APIs · head to head
Directus vs Sphinx

Directus
APIs
Open-source data platform providing REST and GraphQL APIs
- From
- Free
- Rated
- -

Sphinx
Documentation
Documentation generator built for large technical projects
- From
- Free
- Rated
- -
The short version
- Each has a real cost: Directus free permissive use of the self hosted product is limited to organisations under $5M annual revenue with fewer than 50 employees, so crossing either threshold turns a free dependency into a paid licence; Sphinx reStructuredText is harder to write than Markdown and puts off contributors, though MyST now allows Markdown
- They diverge on capability: Directus covers REST API, Sphinx covers Cross-references.
- Prices and features above were last checked on 30 August 2026.
Where they differ
Only the attributes on which Directus and Sphinx actually diverge.
Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in Directus
- REST API
- GraphQL API
- Database management
- PostgreSQL
- MySQL
- SQLite
- Webhooks
- Node.js support
Only in Sphinx
- Cross-references
- API autodoc
- Multi-format output
- Extension ecosystem
What people use each for
The jobs each tool is most often brought in to do.
Directus
- Wrapping an existing SQL database in a REST and GraphQL API with an admin interfacenot Sphinx
- Running a self hosted headless CMS over a schema you already ownnot Sphinx
Sphinx
- Large technical documentation needing reliable cross-referencesnot Directus
- Python projects generating API docs from docstringsnot Directus
- Documentation that must ship as PDF as well as HTMLnot Directus
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Directus
- Free permissive use of the self hosted product is limited to organisations under $5M annual revenue with fewer than 50 employees, so crossing either threshold turns a free dependency into a paid licence
- The free Core tier is a hard limit of 3 seats, 25 collections and 5 flows
- The Team plan is $499 a month billed annually, or $599 monthly, with extra seats at $50 each
- Team caps collections at 50, expandable to 100, and flows at 20
Sphinx
- reStructuredText is harder to write than Markdown and puts off contributors, though MyST now allows Markdown
- Configuration is complex and the default output is dated-looking without theme work
- Build times on large documentation sets are slow
- Heavier than the problem for a small project that only needs a few pages
Pricing, plan by plan
Directus
Free- CommunityFree
- Self-hosted Directus
- Community support
- Cloud$25/monthly
- Managed cloud
- Automatic updates
- Backups
Sphinx
Free- SphinxFree
- Full functionality
- Commercial use permitted
- Community support
Which should you pick?
Choose Directus if
- You need rest api.
- You want to start without paying.
- You work on Node.js, Cloud, Self-hosted, Docker.
- You also want graphql api.
Choose Sphinx if
- You need cross-references.
- You want to start without paying.
- You work on Linux, macOS, Windows.
- You also want api autodoc.
Questions people ask
- Is Directus or Sphinx better?
- Neither clearly leads. Directus starts at Free and Sphinx at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Directus or Sphinx?
- Directus starts at Free and Sphinx at Free.
- Does Directus or Sphinx run on more platforms?
- Directus runs on Node.js, Cloud, Self-hosted, Docker. Sphinx runs on Linux, macOS, Windows.
- Can I use Directus for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is Directus best used for?
- Directus is most often used for wrapping an existing sql database in a rest and graphql api with an admin interface, running a self hosted headless cms over a schema you already own. Of those, wrapping an existing sql database in a rest and graphql api with an admin interface and running a self hosted headless cms over a schema you already own are not what Sphinx is typically brought in for.
- What can Directus do that Sphinx cannot?
- Directus covers REST API, GraphQL API, Database management, PostgreSQL. Sphinx covers Cross-references, API autodoc, Multi-format output, Extension ecosystem.
Answered from the vendors’ own pages
Directus: What is Directus's pricing?
Directus Core is free and self-hosted. The Team tier costs $499/month (annual) or $599/month (rolling), including 10 user seats and cloud hosting at $99/month additional. Enterprise plans have custom pricing. Additional seats cost $50/month each.
SourceSphinx: Is Sphinx free?
Yes, open source under the BSD licence.
Directus: Can I use Directus for free?
Yes, Directus Core is completely free with 3 user seats, 25 Collections, 5 Flows, AI Assistant, and Advanced RBAC. Self-hosting is available at no cost.
SourceSphinx: Do I have to write reStructuredText?
Not any more. The MyST extension allows Markdown, though reStructuredText remains the native format and most examples use it.
Directus: How many user seats does each Directus tier include?
Core includes 3 user seats, Team includes 10 SSO seats, and Enterprise includes custom SSO seat counts. Additional Team seats cost $50/seat per month.
SourceSphinx: Why do large projects choose Sphinx?
Automatic cross-referencing and API extraction from docstrings, which lighter generators do not provide.
Directus: What happens to my monthly Directus plan if I switch?
Monthly plans are grandfathered for six months after switching, and annual plans are honored until renewal. Self-hosted licenses are handled case-by-case at renewal.
SourceDirectus: Is there a free trial for Directus?
No trial period is mentioned. Users can start with the free Core tier immediately without a credit card.
SourceRelated pages
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- Sphinx vs Appwrite
- Sphinx vs Hasura
- Sphinx vs PocketBase
- Sphinx vs Sanity
- Sphinx vs Parse Server
- Sphinx vs Strapi
- Sphinx vs Gravitee
- Sphinx vs Payload CMS
- Sphinx vs KeystoneJS
- Sphinx vs Tyk
- Sphinx vs Asyncapi
- Sphinx vs Hoppscotch
- Sphinx vs Pusher
- Sphinx vs Salt Edge
- Sphinx vs Skyflow
- Sphinx vs Yodlee
- Sphinx vs Backbase
- Sphinx vs Enfuce
- Sphinx vs MkDocs
- Sphinx vs Read the Docs
- Sphinx vs Antora
- Sphinx vs Adobe FrameMaker
- Sphinx vs BookStack
- Sphinx vs Doxygen
- Sphinx vs Archbee
- Sphinx vs Docsify
- Sphinx vs MadCap Flare
- Sphinx vs Paligo
- Sphinx vs ReadMe
- Sphinx vs VitePress
- Sphinx vs Guidde
- Sphinx vs Outline
- Sphinx vs Adobe RoboHelp
