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Documentation · head to head

Read the Docs vs WSO2 API Manager

Read the Docs logo

Read the Docs

Documentation

Documentation hosting with versioning built for open source

From
Free
Rated
-
Full reviewWebsite
WSO2 API Manager logo

WSO2 API Manager

APIs

Complete API management platform for designing and managing APIs

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Read the Docs build configuration is finicky, and build failures on dependency changes are a common frustration; WSO2 API Manager the free open source distribution does not include a subscription to the WSO2 Update service, so continuous improvements and security patches require a paid subscription
  • They diverge on capability: Read the Docs covers Build on commit, WSO2 API Manager covers API Gateway.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Read the Docs and WSO2 API Manager actually diverge.

Attributes where Read the Docs and WSO2 API Manager differ
AttributeRead the DocsWSO2 API Manager
Pricing modelFree for open source; paid business plans for private documentationopen-source
PlatformsWeb, CloudJava, Linux, Docker, Kubernetes
CategoryDocumentationAPIs
FoundedUnknown2005

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 Read the Docs

  • Build on commit
  • Version by branch and tag
  • Pull request previews
  • Free for open source

Only in WSO2 API Manager

  • API Gateway
  • API Designer
  • Developer Portal
  • LDAP
  • Okta
  • Keycloak
  • Microservices
  • Java support

What people use each for

The jobs each tool is most often brought in to do.

Read the Docs

  • Open-source projects needing free hosted versioned documentationnot WSO2 API Manager
  • Teams wanting docs rebuilt automatically on every commitnot WSO2 API Manager
  • Reviewing documentation changes in a pull request before mergenot WSO2 API Manager

WSO2 API Manager

  • Publishing, securing and rate limiting APIs behind a gatewaynot Read the Docs
  • Running an API developer portal with subscription key managementnot Read the Docs
  • Self hosting an open source API management layer on premisesnot Read the Docs

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Read the Docs

  • Build configuration is finicky, and build failures on dependency changes are a common frustration
  • Default themes are recognisable and dated, so sites look alike unless customised
  • Private documentation requires a paid business plan
  • Build times on large projects are slow enough to interrupt a review cycle

WSO2 API Manager

  • The free open source distribution does not include a subscription to the WSO2 Update service, so continuous improvements and security patches require a paid subscription
  • A commercial production licence is not part of the free download and comes only with a subscription
  • No subscription price is published; Basic Support and Enterprise Support both require contacting sales for a quote
  • 24x7x365 coverage requires Enterprise Support; the general query SLA is one business day
  • A Customer Success Manager is a paid optional add on covering business hours only
  • Consulting services and WSO2 Private Cloud hosting are quoted separately

Pricing, plan by plan

Read the Docs

Free
  • FreeFree
    • Core functionality
    • Public projects

WSO2 API Manager

Free
  • CommunityFree
    • Core API management
    • Community support
  • Commercial$undefined/monthly
    • Enterprise features
    • Technical support
    • SLA

Which should you pick?

Choose Read the Docs if

  • You need build on commit.
  • You want to start without paying.
  • You work on Web, Cloud.
  • You also want version by branch and tag.
Read the Docs review

Choose WSO2 API Manager if

  • You need api gateway.
  • You want to start without paying.
  • You work on Java, Linux, Docker, Kubernetes.
  • You also want api designer.
WSO2 API Manager review

Questions people ask

Is Read the Docs or WSO2 API Manager better?
Neither clearly leads. Read the Docs starts at Free and WSO2 API Manager at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Read the Docs or WSO2 API Manager?
Read the Docs starts at Free and WSO2 API Manager at Free.
Does Read the Docs or WSO2 API Manager run on more platforms?
Read the Docs runs on Web, Cloud. WSO2 API Manager runs on Java, Linux, Docker, Kubernetes.
Can I use Read the Docs for free?
Both have a free tier, so you can try either at no cost before committing.
What is Read the Docs best used for?
Read the Docs is most often used for open-source projects needing free hosted versioned documentation, teams wanting docs rebuilt automatically on every commit, reviewing documentation changes in a pull request before merge. Of those, open-source projects needing free hosted versioned documentation and teams wanting docs rebuilt automatically on every commit are not what WSO2 API Manager is typically brought in for.
What can Read the Docs do that WSO2 API Manager cannot?
Read the Docs covers Build on commit, Version by branch and tag, Pull request previews, Free for open source. WSO2 API Manager covers API Gateway, API Designer, Developer Portal, LDAP.

Answered from the vendors’ own pages

Read the Docs: Is Read the Docs free?

Free for open-source public projects. Private documentation requires a paid business plan.

WSO2 API Manager: How is WSO2 API Manager priced?

WSO2 API Manager pricing is not published on their website. As an enterprise API management platform, pricing is custom-quoted based on deployment model and organizational requirements.

Source
Read the Docs: What does it build from?

Most commonly Sphinx or MkDocs sources kept in your repository.

WSO2 API Manager: Does WSO2 API Manager offer different pricing for on-premises versus cloud deployments?

WSO2 API Manager supports multiple deployment options including on-premises and cloud, but pricing structures for different deployment models are not publicly disclosed.

Source
Read the Docs: How does versioning work?

It maps branches and tags to documentation versions, so several releases are served side by side without manual work.

WSO2 API Manager: What deployment flexibility does WSO2 API Manager provide?

WSO2 API Manager enables flexible deployment on-premises or in cloud environments, but specific pricing tiers for each deployment model require contacting WSO2 sales.

Source
WSO2 API Manager: How would I request a WSO2 API Manager pricing quote?

Organizations can request pricing quotes by contacting WSO2 sales through their website. Custom quotes depend on API volume, deployment model, and feature requirements.

Source
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