Alchemy: Blockchain Data Access for Agents Alchemy provides comprehensive blockchain API access across Ethereum, Base, Arbitrum, BNB, Polygon, Solana, and more. Three ways to access: - API key : Set and make requests directly. Full access to all products. Create a free key at dashboard.alchemy.com. - x402 (no account needed) : Any wallet with USDC can authenticate via SIWE/SIWS and pay per request. Supports EVM and Solana wallets. Install and . - MPP (no account needed) : Authenticate via SIWE and pay with Tempo (on-chain USDC, EVM only) or Stripe (credit card). Install . Access Method Select…