Connect Claude
Add a custom connector, paste the URL ending in /mcp, sign in once.
Claude reaches wpreef as a custom connector over OAuth. The connector URL is
https://wpreef.vercel.app/mcp.
Add a site here first.
Sign in to wpreef, open Sites, and register the WordPress site with its URL, a WordPress username and that user's application password.
Open the connector settings.
Settings → Connectors → Add custom connector.
Paste the URL.
https://wpreef.vercel.app/mcp, exactly. Never append/sse: that is a different transport and wpreef does not serve it.Sign in when Claude opens the consent screen.
You sign in to wpreef, not to WordPress. The application password stays here.
Check it.
Ask Claude for your site information. It should answer with the WordPress version, the theme, and what your credential may do.
Why this matters
The endpoint is Streamable HTTP. /sse was the older transport, and a
URL with that suffix fails at connection time with an error that does not name the cause.
After you add or remove a site
Reconnect the connector in Claude. The tool list is built from the sites registered to your account when the connection is made, so a site added afterwards is not there until you do.
If the connector is read-only
Without the write scope the whole connection is built read-only: write tools are never registered, and the assistant can list and read but not change anything. Ask for site information — it reports the read-only state.