Simulate an EVM transaction via static eth_call before sending - predicts return...
https://api.x402node.dev/chain/tx-simulateOverview
Simulate an EVM transaction via static eth_call before sending - predicts return data, revert reason and estimated gas without broadcasting, on Ethereum/Base/Arbitrum/Optimism. tx simulate, transaction simulation, dry run transaction, will tx revert, estimate gas, preflight tx
Protocol
x402
Price
$0.01
Payment Asset
USD Coin
Payment Network
Base
Category
crypto/transactions
Provider
x402node
Source
bazaar
Indexed
2026-06-12 07:15:29
Health
Status
degraded
Latency (p50)
457ms
Uptime (30d)
100.0%
Reliability Score
95/100
Last Checked
2026-06-22 06:20:07
Last Healthy
Never
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
Invalid
Asset Verified
—
Facilitator
—
Input Schema
{
"discoverable": true,
"method": "POST",
"queryParams": {
"chain": "ethereum, base (default), arbitrum, optimism",
"data": "Hex calldata, default 0x",
"from": "Sender address (optional)",
"to": "Target contract address (required)",
"value": "Wei value as decimal string, default 0"
},
"type": "http"
}
Recent Health Checks
| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-06-22 06:20:07 | degraded | 404 | 472ms | |
| 2026-06-22 02:10:46 | degraded | 404 | 857ms | |
| 2026-06-21 23:36:13 | degraded | 404 | 487ms | |
| 2026-06-21 11:10:10 | degraded | 404 | 906ms | |
| 2026-06-21 03:49:46 | degraded | 404 | 457ms | |
| 2026-06-20 19:43:34 | degraded | 404 | 434ms | |
| 2026-06-20 07:25:21 | degraded | 404 | 447ms | |
| 2026-06-19 12:40:28 | degraded | 404 | 139ms | |
| 2026-06-19 08:23:16 | degraded | 404 | 447ms |