Check the exact ERC20 allowance an owner granted a spender and flag unlimited ap...
https://api.x402node.dev/chain/allowance-riskOverview
Check the exact ERC20 allowance an owner granted a spender and flag unlimited approvals that let a contract drain funds - a pre-transaction safety check agents need that LLMs cannot perform. allowance risk, approval risk, unlimited approval, spender risk, revoke check, token approval safety
Protocol
x402
Price
$0.0050
Payment Asset
USD Coin
Payment Network
Base
Category
crypto/transactions
Provider
x402node
Source
bazaar
Indexed
2026-06-12 08:15:10
Health
Status
healthy
Latency (p50)
429ms
Uptime (30d)
100.0%
Reliability Score
92/100
Last Checked
2026-06-17 00:53:15
Last Healthy
2026-06-17 00:53:15
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
Invalid
Asset Verified
—
Facilitator
—
Input Schema
{
"discoverable": true,
"method": "GET",
"queryParams": {
"address": "EVM/chain address (optional)",
"owner": "Token owner (required)",
"spender": "Spender contract (required)",
"token": "ERC20 contract (required)"
},
"type": "http"
}
Recent Health Checks
| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-06-17 00:53:15 | healthy | 402 | 426ms | |
| 2026-06-16 06:20:05 | healthy | 402 | 441ms | |
| 2026-06-15 23:07:02 | healthy | 402 | 747ms | |
| 2026-06-15 17:59:11 | healthy | 402 | 417ms | |
| 2026-06-15 13:07:30 | healthy | 402 | 415ms | |
| 2026-06-15 06:28:15 | healthy | 402 | 441ms | |
| 2026-06-14 22:07:38 | healthy | 402 | 444ms | |
| 2026-06-14 15:15:44 | healthy | 402 | 421ms | |
| 2026-06-14 10:34:21 | healthy | 402 | 429ms | |
| 2026-06-14 05:30:03 | healthy | 402 | 147ms |