# Node-red-contrib-opcua: what is the best alternative?

**URL:** <https://discourse.nodered.org/t/node-red-contrib-opcua-what-is-the-best-alternative/97796>\
**Category:** General\
**Created:** [25 June 2025 21:36 UTC](https://discourse.nodered.org/t/node-red-contrib-opcua-what-is-the-best-alternative/97796 "2025-06-25T21:36:08Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![rromele](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/rromele/32/18431_2.png) [@rromele](https://discourse.nodered.org/u/rromele)\
**Post date:** [25 June 2025 21:36 UTC](https://discourse.nodered.org/t/node-red-contrib-opcua-what-is-the-best-alternative/97796/1 "2025-06-25T21:36:08Z")

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Hi, I am using node node-red-contrib-opcua V.0.2.340.  
At the startup of node-red there is a warning: "node-opcua-client-crawler module has been deprecated....".

What could be a functioning alternative node/influx?  
The need is to use it both as a client and as a server.

 ![opcua](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/3X/a/c/ac291baee4dab028a587e4814f67f55ce8ab8e88.jpeg)

Could node-red-opcua-x be a valid stable alternative?

thank you  
R

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**Author:** ![erossignon](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/erossignon/32/87702_2.png) [@erossignon](https://discourse.nodered.org/u/erossignon)\
**Post date:** [2 August 2025 13:48 UTC](https://discourse.nodered.org/t/node-red-contrib-opcua-what-is-the-best-alternative/97796/2 "2025-08-02T13:48:59Z")

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I would recommend @opcua/for-node-red module: [@OPCUA For NodeRed](https://flows.nodered.org/node/@opcua/for-node-red) This is a professional module done by Sterfive the company behind NodeOPCUA.

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**Author:** ![rromele](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/rromele/32/18431_2.png) [@rromele](https://discourse.nodered.org/u/rromele)\
**Post date:** [11 August 2025 21:26 UTC](https://discourse.nodered.org/t/node-red-contrib-opcua-what-is-the-best-alternative/97796/3 "2025-08-11T21:26:52Z")

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Okay, but it is correct to know that the node "@opcua/for-node-red" has a paid usage license.

R.

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**Author:** ![Aaqu](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/aaqu/32/101407_2.png) [@Aaqu](https://discourse.nodered.org/u/Aaqu)\
**Post date:** [12 August 2025 06:38 UTC](https://discourse.nodered.org/t/node-red-contrib-opcua-what-is-the-best-alternative/97796/4 "2025-08-12T06:38:52Z")

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Paid modules for node-red - definite no