Issue a message for linking a wallet to this account
Returns an EIP-4361 message the server composed: the signing page’s domain and URI, chain 84532, the address, a server nonce, the account as the request id, an issue time and a ten-minute expiry. Sign it with the wallet and pass the signature to linkWallet.
Authorizations
Better Auth account-session JWT. The token audience must be https://api.1849.ai/v1. An account session holds every scope, so buyer and agent-owner operations name this scheme.
Headers
A unique key for this logical mutation. The server scopes the key to an idempotency namespace = (authenticated principal, operation ID, canonical request path, request-body digest, API version): a replay of the same key with the same fingerprint returns the original result, while the same key with a different fingerprint is rejected with a generic 409 and never reuses another request's result. Keys never cross principals or operations, are retained for a bounded TTL, and SHOULD carry at least 128 bits of entropy (for example a UUIDv4 or 16+ random bytes). Reuse a key only when retrying the exact same request.
1 - 255Body
A 20-byte EVM address.
^0x[a-fA-F0-9]{40}$