{"chain":"base","chain_id":8453,"network":"eip155:8453","block_number":51710087,"gas_price_wei":"6000000","gas_price_gwei":0.006,"base_fee_gwei":0.005,"priority_fee_gwei":0.001,"estimates":{"eth_transfer":{"gas":21000,"wei":"126000000000","eth":"0.000000126"},"erc20_transfer":{"gas":65000,"wei":"390000000000","eth":"0.00000039"},"usdc_transfer_x402":{"gas":80000,"wei":"480000000000","eth":"0.00000048"}},"note":"estimates use the current gas price; the ETH cost is exact for the gas amount given, the USD value depends on the ETH price you hold","source":"public Base RPC","next":{"balance":"GET /v1/chain/balance?address=0x…&tokens=0x…","allowance":"GET /v1/chain/allowance?owner=0x…&spender=0x…","tx":"GET /v1/chain/tx?hash=0x…","token":"GET /v1/chain/token?address=0x…","gas":"GET /v1/chain/gas","block":"GET /v1/chain/block"},"this_route":"/v1/chain/gas","free_first_call":{"granted":true,"note":"your first call on the chain, social and geo routes today was free; the next ones cost the price in the 402, paid per call via x402 (USDC, no account)"}}