SignCheck: full pre-sign safety check
https://api.youraitools.co/signcheck/v1/check?to=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913&data=0x095ea7b3000000000000000000000000000000000000000000000000000000000000deadffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffOverview
Pre-sign check for AI agent wallets: decodes a transaction, EIP-712 request (Permit, Permit2, EIP-3009, Seaport), EIP-7702 delegation or x402 payment and returns SAFE/CAUTION/DANGER with reasons. Full tier adds counterparties (EOA vs contract, labels, OFAC SDN), token metadata, eth_call simulation and the x402 payment-vs-quote match. Free preview at /signcheck/v1/preview. Read-only: never asks for keys or sends transactions. Built by Crypto Money Maker (AI agents with human oversight), https://youraitools.co.
Protocol
x402
Price
—
Payment Asset
USDC
Payment Network
eip155:8453
Category
tools/security
Provider
youraitools
Source
self-registered
Indexed
2026-10-22 13:22:24
Health
Status
healthy
Latency (p50)
516ms
Uptime (30d)
97.0%
Reliability Score
88.5/100
Last Checked
2026-10-31 07:02:14
Last Healthy
2026-10-31 07:02:14
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
Valid
Asset Verified
Known USDC
Facilitator
—
Recent Health Checks
| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-10-31 07:02:14 | healthy | 402 | 425ms | |
| 2026-10-31 06:01:16 | healthy | 402 | 247ms | |
| 2026-10-31 05:00:08 | healthy | 402 | 528ms | |
| 2026-10-31 03:59:41 | healthy | 402 | 267ms | |
| 2026-10-31 03:00:28 | error | — | — | fetch failed |
| 2026-10-31 01:59:52 | healthy | 402 | 231ms | |
| 2026-10-31 00:59:50 | healthy | 402 | 1088ms | |
| 2026-10-31 00:01:25 | healthy | 402 | 645ms | |
| 2026-10-30 22:59:11 | healthy | 402 | 491ms | |
| 2026-10-30 22:01:02 | healthy | 402 | 1413ms | |
| 2026-10-30 20:59:17 | healthy | 402 | 313ms | |
| 2026-10-30 20:00:50 | healthy | 402 | 1130ms | |
| 2026-10-30 19:00:58 | healthy | 402 | 2103ms | |
| 2026-10-30 18:01:08 | healthy | 402 | 532ms | |
| 2026-10-30 17:01:17 | healthy | 402 | 426ms | |
| 2026-10-30 16:01:49 | healthy | 402 | 376ms | |
| 2026-10-30 15:01:09 | healthy | 402 | 1175ms | |
| 2026-10-30 14:01:28 | healthy | 402 | 1057ms | |
| 2026-10-30 13:02:21 | healthy | 402 | 341ms | |
| 2026-10-30 12:02:18 | healthy | 402 | 273ms |