Question 1

What is Apidex?

Accepted Answer

Apidex is a free OpenAPI 3 documentation generator. You upload or paste a spec and immediately get a browsable API reference with an interactive playground and a shareable link — no build step, no deploy, no account.

Question 2

Is Apidex really free?

Accepted Answer

Yes. The core experience — generating docs, sharing protected links, and using the playground — is free. There are no per-seat fees and no credit card required to get started.

Question 3

Which OpenAPI versions are supported?

Accepted Answer

Apidex supports OpenAPI 3.x specifications in both JSON and YAML formats. Specs are validated strictly so you'll know exactly what to fix if something is off.

Question 4

Can I password-protect my documentation?

Accepted Answer

Yes. When you share a spec, you can set a password and only people with the link and the password can view it. It's a simple way to ship docs to a partner or client without setting up accounts.

Question 5

Does Apidex store my OpenAPI spec?

Accepted Answer

Specs you upload locally stay in your browser. When you create a shareable link, the spec is stored so the recipient can load it. You can remove a shared spec at any time.

Question 6

Can I try API endpoints from the docs?

Accepted Answer

Yes — Apidex includes a built-in API playground that supports OAuth2 flows, API keys, bearer tokens, and basic auth. You can configure servers and variables and execute requests directly from the documentation.

Question 7

Do I need to install anything?

Accepted Answer

No. Apidex runs entirely in your browser. Open the site, drop your spec, and you're done.

Question 8

How is Apidex different from Swagger UI or Redoc?

Accepted Answer

Swagger UI and Redoc are excellent libraries, but they require you to host them. Apidex is a hosted experience focused on speed: paste a spec, share a link, use the playground. We compare them in detail on our compare page.

Question 9

Can I use Apidex for internal APIs?

Accepted Answer

Absolutely. Many teams use Apidex as a central, searchable home for their internal APIs. Combine it with password-protected sharing to keep things private.

Question 10

Will Apidex work for very large specs?

Accepted Answer

Apidex is built to handle real-world specs with hundreds of endpoints and deeply nested schemas. Navigation, search, and the playground stay snappy even at scale.