I’ve been using the MCP server with Claude and it's been a big help. One thing that's been tripping me up though is that there's no way to update existing email templates. You can get them and create new ones, but there's no PATCH / update tool in the MCP.
The only workaround for email template editing is to have Claude create a whole new template and then manually reassign it across every flow, which really isn't practical if you've got a bunch of templates in use.
Real example from today: I needed to swap "PayPal" for "Venmo" across 6 of my templates, about 20 instances total. It should've been a quick MCP task for Claude, but I ended up having to log in and do it all by hand, because having Claude create new versions would've meant going in and updating all my flows again.
I’d love to see Klaviyo add an “update_email_template” tool to the MCP abilities. Would be a huge win for everyone I think.
