Connect a wallet, request a SIWS message from /api/v1/auth/siws/*, sign it, and inspect the resulting session and withApiAuth payloads directly against this server.
(no session)
Call /api/dev/auth/echo to inspect req.apiAuth
Use the memo + blockhash payload below to craft a transaction signature, paste the JSON into the body editor, and press the button to hit /api/v1/auth/tx/sign-in.
Call create tx nonce to fetch memo + blockhash