Official Alchemy skill. Two auth modes: API key or x402 Agentic Gateway (no key needed). Complete coverage for ~100 chains: Token API, NFT API, Transfers, Prices, Portfolio, Simulation, Webhooks, Solana, and JSON-RPC. 82 reference docs + x402 gateway rules.
cp -r cryptoskill/skills/dev-tools/alchemy-official-skill .claude/skills/clawhub install alchemy-official-skill