How to fix
1
Open permalink settings
In your WordPress admin, go to Settings → Permalinks.
2
Change the permalink structure
Select any option other than “Plain” (we recommend Post name).
3
Save your changes
Click Save Changes.
4
Reconnect to Kintsu AI
Go back to Kintsu AI and try connecting again.
Why this happens
Kintsu AI communicates with your WordPress site through its REST API. This API requires “pretty permalinks” to be enabled — which is any permalink setting other than “Plain.” Most WordPress sites have this enabled by default, but some hosting environments or fresh installations may use the “Plain” option.Still not working?
If you’ve changed your permalinks and are still seeing this error, it could be caused by:- A security plugin (like Wordfence or Sucuri) blocking API requests
- A firewall (like Cloudflare) challenging bot traffic
- Your hosting provider blocking external API access