WordPress API to Catalogs

You could also do this purely in Braze using connected content and webhooks. e.g.

PUT https://rest.iad-XX.braze.com/catalogs/events/items

In your webhook body, get today's posts from Wordpress

{% assign today_start = now | date: "%Y-%m-%dT00:00:00" %}
{% assign today_end   = now | date: "%Y-%m-%dT23:59:59" %}
{% connected_content
  https://your-site.com/wp-json/wp/v2/posts?status=publish&after={{ today_start | url_encode }}&before={{ today_end | url_encode }}&per_page=20&orderby=date&order=desc&_fields=id,title,link,date
  :method get
  :retry 1
  :save posts
%}

And then loop through the items if there are any e.g. 

{% if posts and posts.size > 0 %}
{
  "items": [
  {% for p in posts %}
{
  "id": "{{p.id}}",
  "title": "{{p.title}}",
  "link": "{{p.link}}",
}{% if forloop.last %}{% else %},{% endif %}
{% endfor %}
  ]
}
{% endif %}

Depending on how often you're updating the blog, schedule it to run a few times a day