The resource is temporarily at a different URL. Use the same HTTP method to access it.
307 Temporary Redirect is a stricter version of 302. The key difference: 307 forbids the client from changing the request method on the redirect. If the original request was POST, the redirect target also gets POST. This is the right code for redirecting state-changing requests where you cannot afford method ambiguity, like API endpoints behind a load balancer doing failover.
When servers should return it: Return 307 for temporary redirects that must preserve the HTTP method. Common cases: API failover, regional routing, redirecting POST/PUT/PATCH/DELETE without losing the body.
curl -i -X POST -d "x=1" https://api.example.com/v1/users
HTTP/2 307
location: https://api-east.example.com/v1/users
For a one-page reference of all HTTP status codes, see the HTTP cheat sheet. For testing API responses, try the API Tester tool. For inspecting responses on the command line, the curl cheat sheet covers the most common flags.