Directory / base-gas-x402-production.up.railway.app
Live Base mainnet gas: EIP-1559 base fee, low/medium/high priority tiers in gwei, and a transaction cost estimate for any gas limit.
# 1. Ask the endpoint what it costs (no payment, no wallet needed): curl -i -X GET 'https://base-gas-x402-production.up.railway.app/gas' # -> HTTP/1.1 402 Payment Required # the response carries the price, asset and pay-to address. # 2. Pay and retry with any x402 client: npx x402-fetch 'https://base-gas-x402-production.up.railway.app/gas'
Endpoint: https://base-gas-x402-production.up.railway.app/gas. Operated by base-gas-x402-production.up.railway.app, not by Animica. Price and availability were correct at the last probe on 2026-09-02 and are set by the operator, who may change them.
Cheapest hours of day to transact on Base, from collected gas history: hourly averages in UTC ranked cheapest first, plus the savings percent.
Historical Base mainnet gas prices over a lookback window: time series, min/max/average/median, and a cheap/normal/expensive verdict for the current price.
All 3 endpoints on base-gas-x402-production.up.railway.app →