# Source: https://upstash.com/docs/qstash/misc/license.md

> ## Documentation Index
> Fetch the complete documentation index at: https://upstash.com/docs/llms.txt
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# Development Server License Agreement

## 1. Purpose and Scope

This software is a development server implementation of QStash API ("Development Server") provided for testing and development purposes only. It is not intended for production use, commercial deployment, or as a replacement for the official QStash service.

## 2. Usage Restrictions

By using this Development Server, you agree to the following restrictions:

a) The Development Server may only be used for:

* Local development and testing
* Continuous Integration (CI) testing
* Educational purposes
* API integration development

b) The Development Server may NOT be used for:

* Production environments
* Commercial service offerings
* Public-facing applications
* Operating as a Software-as-a-Service (SaaS)
* Reselling or redistributing as a service

## 3. Restrictions on Modification and Reverse Engineering

You may not:

* Decompile, reverse engineer, disassemble, or attempt to derive the source code of the Development Server
* Modify, adapt, translate, or create derivative works based upon the Development Server
* Remove, obscure, or alter any proprietary rights notices within the Development Server
* Attempt to bypass or circumvent any technical limitations or security measures in the Development Server

## 4. Technical Limitations

Users acknowledge that the Development Server:

* Operates entirely in-memory without persistence
* Provides limited functionality compared to the official service
* Offers no data backup or recovery mechanisms
* Has no security guarantees
* May have performance limitations
* Does not implement all features of the official service

## 5. Warranty Disclaimer

THE DEVELOPMENT SERVER IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. THE AUTHORS OR COPYRIGHT HOLDERS SHALL NOT BE LIABLE FOR ANY CLAIMS, DAMAGES, OR OTHER LIABILITY ARISING FROM THE USE OF THE SOFTWARE IN VIOLATION OF THIS LICENSE.

## 6. Termination

Your rights under this license will terminate automatically if you fail to comply with any of its terms. Upon termination, you must cease all use of the Development Server.

## 7. Acknowledgment

By using the Development Server, you acknowledge that you have read this license, understand it, and agree to be bound by its terms.