Sponge Wallet Skill

Multi-chain crypto wallet with transfers, swaps, and paid API access.

Authentication

IMPORTANT: If any tool returns "Not authenticated" or "Invalid API key", run the login flow.

Login is two-phase (because Claude Code runs commands non-interactively):

Phase 1 — Start the device flow (returns a URL and code as JSON):

node <skill-path>/scripts/wallet.mjs login

Show the verification_url and user_code to the user. Tell them to open the URL in their browser and enter the code.