WordPress OAuth fails with IONOS domains under 4 letters – workaround?

[crafted-lab]

Hi n8n Team,

I’m currently integrating WordPress with n8n but ran into the well-known issue that the WordPress OAuth connection fails when using domains with fewer than four characters – in my case, hosted with IONOS.

I found this community post:

Wordpress credential problem "Service Unavailable"

Hello everyone, I’ve come to ask you for help because I’ve been experiencing a problem for a few days that’s totally blocking me. Describe the problem/error/question I’m in the process of creating an automation that should connect and publish content on my WordPress site, but I’m encountering a problem when setting up WordPress credentials. I’m getting the “Service Unavailable” error, but everything’s fine and there’s no problem with the settings. I tested with another site and everything work…

Is there any workaround or fix available at this point – perhaps via custom credentials, manual token exchange, or some proxy solution?

Would appreciate any current guidance or updates on this, as WordPress integration is a key part of my automation use case (media uploads, REST API, etc.).

Thanks in advance,

Information on your n8n setup

• **n8n version: 1.91.1
• **Database default: SQLite
• **n8n EXECUTIONS_PROCESS setting: own
• **Running n8n via cloud
• **Operating system: MacOs

[TomSpidge]

I can’t think of anything you can do with the Wordpress node, but you could use a standard HTTP Request node and set a different user-agent using the headers there. You’d need to know the API call URLs for wordpress rather than relying on the node to know them for you, but should be able to use the existing credential.