Here's the full list of backend endpoints: Public Method Path Description GET / Health check POST /api/newsletter/subscribe Newsletter subscription POST /webhooks/kyc KYC webhook (signature-verified) Auth (SIWE) — /api/auth/siwe Method Path GET /api/auth/siwe/nonce POST /api/auth/siwe/verify POST /api/auth/siwe/reconnect POST /api/auth/siwe/logout POST /api/auth/siwe/forget GET /api/auth/siwe/me Authenticated (session required) Method Path GET /api/users/:walletAddress PATCH /api/users/:walletAddress GET /api/whitelist/:walletAddress POST /api/purchase/preflight POST /api/transfers GET /api/transfers/:id POST /api/kyc/initiate GET /api/kyc/status