InputPOST /api/v1/x402/gas-cost-usd
{
"gas_used": 21000,
"gas_price_wei": "1000000000",
"eth_usd": 3000
}Local chain primitives · chain-primitives-local
Gas Cost in USD
Estimate gas cost in USD given used gas, price, and ETH/USD. Call when operator reports that need approximate dollar gas spend. Returns usd cost estimate (caller supplies eth price) 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-usd -m POST -H 'x-delx-source: product-page' --max-amount 0.001 -b '{"gas_used":21000,"gas_price_wei":"1000000000","eth_usd":3000}'Delivered resultapplication/json
{
"schema": "delx/util-gas-cost-usd/v1",
"gas_used": 21000,
"cost_eth": 0.000021,
"eth_usd": 3000,
"cost_usd": 0.063
}Machine-readable evidence