Vextorium · Estimate gas before signing (12 chains)
https://api.vextorium.com/v1/evm-estimate-gasOverview
Estimate the gas a transaction will use (eth_estimateGas) and its cost at the current gas price, or the revert reason if it would fail. Nothing is sent. Works on Base, Ethereum, Arbitrum, Optimism, Polygon, BNB Chain, Avalanche, Gnosis, Linea, Scroll, Sonic and Unichain.
Protocol
x402 (POST)
Price
—
Payment Asset
USD Coin
Payment Network
eip155:8453
Category
crypto/onchain
Provider
vextorium
Source
bazaar
Indexed
2026-10-03 21:23:19
Health
Status
healthy
Latency (p50)
165ms
Uptime (30d)
100.0%
Reliability Score
97/100
Last Checked
2026-10-08 08:41:21
Last Healthy
2026-10-08 08:41:21
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
Valid
Asset Verified
Known USDC
Facilitator
—
Recent Health Checks
| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-10-08 08:41:21 | healthy | 402 | 108ms | |
| 2026-10-07 20:35:51 | healthy | 402 | 54ms | |
| 2026-10-07 10:04:36 | healthy | 402 | 111ms | |
| 2026-10-07 00:59:22 | healthy | 402 | 188ms | |
| 2026-10-06 09:43:33 | healthy | 402 | 165ms | |
| 2026-10-05 19:13:58 | healthy | 402 | 237ms |