# What is the "REST API is not licensed" error cause?

**URL:** https://community.wowza.com/t/what-is-the-rest-api-is-not-licensed-error-cause/45074
**Category:** Wowza Developer Dojo
**Created:** [April 7, 2015, 9:35pm UTC](https://community.wowza.com/t/what-is-the-rest-api-is-not-licensed-error-cause/45074 "2015-04-07T21:35:47Z")
**Posts on this page:** 6
**Page:** 1

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### Author: ![Cliary\_Lori](https://avatars.discourse-cdn.com/v4/letter/c/77aa72/32.png) [@Cliary\_Lori](https://community.wowza.com/u/Cliary_Lori)
#### Post date: [April 7, 2015, 9:35pm UTC](https://community.wowza.com/t/what-is-the-rest-api-is-not-licensed-error-cause/45074/1 "2015-04-07T21:35:47Z")

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Last week I upgraded to monthly subscription from the free trial. Before that, I can access some information of streams by Wowza engine REST API, but since today morning I find my server api not working. I debugged my api get the following response.

I can ensure my ape caller used correct username and password with HTTP basic authentication.

> 402
> 
> \<?xml version="1.0" encoding="UTF-8" standalone="no"?\>4.0`402`REST API is not licensed

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### Author: ![Jason\_Hilton](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/jason_hilton/32/437_2.png) [@Jason\_Hilton](https://community.wowza.com/u/Jason_Hilton)
#### Post date: [April 8, 2015, 8:15am UTC](https://community.wowza.com/t/what-is-the-rest-api-is-not-licensed-error-cause/45074/2 "2015-04-08T08:15:29Z")

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Hi,

The REST API is not licensed in the Monthly subscription of the software.

If you’d like a discussion on your options regarding the REST API, please create a ticket by sending an email to support@wowza.com.

Please link to this thread for reference.

Thanks,

Jason

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### Author: ![Lisa\_Wong](https://avatars.discourse-cdn.com/v4/letter/l/34f0e0/32.png) [@Lisa\_Wong](https://community.wowza.com/u/Lisa_Wong)
#### Post date: [March 3, 2016, 8:08am UTC](https://community.wowza.com/t/what-is-the-rest-api-is-not-licensed-error-cause/45074/3 "2016-03-03T08:08:17Z")

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Starting with Wowza Streaming Engine version 4.3, the REST API is fully accessible using your Wowza server license key and no other key is required. If you still are receiving the “REST API is not licensed” error, you need to upgrade your Wowza server to version 4.3. To upgrade, see [how to update your Wowza Streaming Engine installation](https://www.wowza.com/docs/how-to-update-your-wowza-streaming-engine-installation).

-Lisa

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### Author: ![sal\_jefferson](https://avatars.discourse-cdn.com/v4/letter/s/6de8d8/32.png) [@sal\_jefferson](https://community.wowza.com/u/sal_jefferson)
#### Post date: [April 16, 2015, 9:17am UTC](https://community.wowza.com/t/what-is-the-rest-api-is-not-licensed-error-cause/45074/4 "2015-04-16T09:17:04Z")

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Thank you for the update. Please let us know if you have any other questions.

Kind regards,

Salvadore

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### Author: ![Cliary\_Lori](https://avatars.discourse-cdn.com/v4/letter/c/77aa72/32.png) [@Cliary\_Lori](https://community.wowza.com/u/Cliary_Lori)
#### Post date: [April 8, 2015, 1:55am UTC](https://community.wowza.com/t/what-is-the-rest-api-is-not-licensed-error-cause/45074/5 "2015-04-08T01:55:28Z")

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What pricing I can choose that contain REST API license?

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### Author: ![Cliary\_Lori](https://avatars.discourse-cdn.com/v4/letter/c/77aa72/32.png) [@Cliary\_Lori](https://community.wowza.com/u/Cliary_Lori)
#### Post date: [April 8, 2015, 6:02am UTC](https://community.wowza.com/t/what-is-the-rest-api-is-not-licensed-error-cause/45074/6 "2015-04-08T06:02:14Z")

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OK， I found the solution is request a licence from preview@wowza.com