Free version 1.0.0 is available from the official WordPress.org Plugin Directory. Premium plans and downloads are available from the pricing page.
Exact route matching
Checkout Firewall evaluates exact supported Store API checkout routes, including the protected existing-order route. It does not broadly intercept every Store API or REST request.
Response behavior
- Challenge required returns a recoverable conflict
- Temporary throttle returns HTTP 429
- A terminal block returns HTTP 403
- A checkout draft may exist, but intervention occurs before gateway payment and must not create a second logical order
Related resources
How the decision flow works · Compatibility matrix · Support · Public source