Token gating with SIWX or giving free access to agents

What's SIWX? Sign-In-With-X (CAIP-122) is a standard for wallet-based authentication. You sign a message with your wallet, the server verifies you own that address. Think "Sign In With Ethereum" but chain-agnostic. x402 uses SIWX as an extension. Servers can challenge clients to prove wallet ownership before granting access. or you can just use it to manage user credit or grant benefits or discounts