SpellzCode — Gas tracker, multichain gas: 5 EVM chains and Bitcoin fees (MPP)
https://agent-data-tools.revmesh2074.workers.dev/pack/gas-tracker?only=Overview
One call for current gas prices on Base, Ethereum, Arbitrum, Optimism and Polygon: gas price, base fee and priority fee in gwei and what a plain transfer costs in the native coin and, for the ETH chains, in US dollars (Uniswap ETH price), sorted cheapest first, plus Bitcoin fee rates in sat/vB. Cheaper than the tools bought one by one. Use to pick the cheapest chain, time a transaction or show fees in a wallet.