InputPOST /api/v1/x402/gas-cost-eth
{
"gas_used": 21000,
"gas_price_wei": "1000000000"
}Local chain primitives · chain-primitives-local
Gas Cost in Ether
Compute total gas cost in ether from used gas and price wei. Call when budgeting ETH spend for a planned or observed transaction. Returns gas cost in eth as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.
One-command purchase
Run it from an agent.
No account or API key. AgentCash reads the 402 challenge, pays no more than the declared cap, retries the request and returns the result.
npx agentcash@latest fetch https://api.delx.ai/api/v1/x402/gas-cost-eth -m POST -H 'x-delx-source: product-page' --max-amount 0.001 -b '{"gas_used":21000,"gas_price_wei":"1000000000"}'Delivered resultapplication/json
{
"schema": "delx/util-gas-cost-eth/v1",
"gas_used": 21000,
"gas_price_wei": "1000000000",
"cost_wei": "21000000000000",
"cost_eth": 0.000021
}Machine-readable evidence