> ## Documentation Index
> Fetch the complete documentation index at: https://docs.kintsu.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Could not reach the Kintsu API

> Fix the 'Could not reach the Kintsu API' error when connecting your WordPress site to Kintsu AI.

If you see this error when connecting your WordPress site to Kintsu AI, your site's permalink settings may need to be updated.

## How to fix

<Steps>
  <Step title="Open permalink settings">
    In your WordPress admin, go to **Settings → Permalinks**.
  </Step>

  <Step title="Change the permalink structure">
    Select any option **other than "Plain"** (we recommend **Post name**).
  </Step>

  <Step title="Save your changes">
    Click **Save Changes**.
  </Step>

  <Step title="Reconnect to Kintsu AI">
    Go back to Kintsu AI and try connecting again.
  </Step>
</Steps>

## 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

Contact us at [support@kintsu.ai](mailto:support@kintsu.ai) and we'll help you get connected.