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APIs · head to head

Apidog vs KeystoneJS

Apidog logo

Apidog

APIs

All-in-one platform for API design, documentation, testing, and mocking

From
Free
Rated
-
Full reviewWebsite
KeystoneJS logo

KeystoneJS

APIs

Powerful Node.js headless CMS framework and API platform

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Apidog free plan is capped at 4 users, limiting larger teams from using it at no cost.; KeystoneJS database support is limited to PostgreSQL, MySQL and SQLite
  • They diverge on capability: Apidog covers API design and documentation, KeystoneJS covers REST API.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Apidog and KeystoneJS actually diverge.

Attributes where Apidog and KeystoneJS differ
AttributeApidogKeystoneJS
Pricing modelfreemiumopen-source
Platformsweb, windows, mac, linuxNode.js, Self-hosted
FoundedUnknown2016

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (APIs).

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 Apidog

  • API design and documentation
  • Mock servers
  • Automated testing
  • Team collaboration
  • Scheduled imports
  • Branded documentation

Only in KeystoneJS

  • REST API
  • GraphQL API
  • Admin interface
  • Node.js
  • Next.js
  • React
  • Databases
  • Node.js support

What people use each for

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

Apidog

  • Designing and documenting APIs in a shared team workspacenot KeystoneJS
  • Mocking API responses for frontend development before backend is readynot KeystoneJS
  • Running automated API test suitesnot KeystoneJS
  • Replacing separate Postman, Swagger, and mock-server tools with one platformnot KeystoneJS

KeystoneJS

  • Headless CMS implementationnot Apidog
  • Content management systemsnot Apidog
  • Customizable API-driven applicationsnot Apidog

Where each one falls short

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

Apidog

  • Free plan is capped at 4 users, limiting larger teams from using it at no cost.
  • Faster scheduled imports and unlimited projects require the Professional tier or higher.
  • Smaller community and plugin ecosystem compared to long-established tools like Postman.
  • Advanced enterprise security controls require the top-tier Enterprise plan.

KeystoneJS

  • Database support is limited to PostgreSQL, MySQL and SQLite
  • Keystone 5 is a separate legacy product documented on a different site and is not covered by the Keystone 6 docs
  • Upgrading requires following a dedicated Migrate to 8.0.0 guide, so major versions are not drop-in
  • Free support is a community Slack; enterprise-grade consulting and support is a separate paid engagement with Thinkmill and no published price

Pricing, plan by plan

Apidog

Free
  • FreeFree
    • Up to 4 users
    • Core design, mock, and testing features
  • Basic$9/month
    • Per-seat pricing billed annually
    • Expanded team collaboration
  • Professional$18/month
    • Unlimited projects
    • Team-level shared variables
    • Faster scheduled imports
  • Enterprise$27/month
    • Advanced admin and security controls
    • Priority support

KeystoneJS

Free
  • Open SourceFree
    • Full KeystoneJS
    • Community support

Which should you pick?

Choose Apidog if

  • You need api design and documentation.
  • You want to start without paying.
  • You work on web, windows, mac, linux.
  • You also want mock servers.
Apidog review

Choose KeystoneJS if

  • You need rest api.
  • You want to start without paying.
  • You work on Node.js, Self-hosted.
  • You also want graphql api.
KeystoneJS review

Questions people ask

Is Apidog or KeystoneJS better?
Neither clearly leads. Apidog starts at Free and KeystoneJS at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Apidog or KeystoneJS?
Apidog starts at Free and KeystoneJS at Free.
Does Apidog or KeystoneJS run on more platforms?
Apidog runs on web, windows, mac, linux. KeystoneJS runs on Node.js, Self-hosted.
Can I use Apidog for free?
Both have a free tier, so you can try either at no cost before committing.
What is Apidog best used for?
Apidog is most often used for designing and documenting apis in a shared team workspace, mocking api responses for frontend development before backend is ready, running automated api test suites, replacing separate postman, swagger, and mock-server tools with one platform. Of those, designing and documenting apis in a shared team workspace and mocking api responses for frontend development before backend is ready are not what KeystoneJS is typically brought in for.
What can Apidog do that KeystoneJS cannot?
Apidog covers API design and documentation, Mock servers, Automated testing, Team collaboration. KeystoneJS covers REST API, GraphQL API, Admin interface, Node.js.

Answered from the vendors’ own pages

Apidog: What does Apidog cost?

Apidog offers a free plan for up to 4 users, with paid per-seat plans at roughly $9/month for Basic, $18/month for Professional, and $27/month for Enterprise when billed annually.

Source
KeystoneJS: Is KeystoneJS free?

Yes, KeystoneJS is free and open source with no licensing fees. Core platform has no lock-in and is contributed to by 250+ developers.

Source
Apidog: Is there a free plan, and what are its limits?

The free plan supports up to 4 users with access to core design, documentation, mocking, and testing features.

Source
KeystoneJS: What are hosting costs for KeystoneJS?

KeystoneJS is self-hosted and deployment-agnostic. Hosting costs depend on your chosen deployment platform (Vercel, AWS, Heroku, etc.) and infrastructure, not KeystoneJS itself.

Source
Apidog: Can I try paid plans before subscribing?

Paid plans include a 14-day free trial, giving teams full access to premium features before committing to a subscription.

Source
KeystoneJS: Does KeystoneJS offer paid support?

Enterprise support with tailored options is available from Thinkmill, the company behind KeystoneJS. Pricing details available upon request.

Source
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