TxPreflight API

active

Spend a fraction of a cent to independently screen a Base transaction before risking onchain value. TxPreflight returns deterministic ALLOW, REVIEW, or BLOCK with ERC20/Permit2 approval analysis, direct OFAC SDN EVM screening, malformed-calldata detection, and current-state Base simulation.

AIBasex402 v2exactagent-sign-guard-main-production.up.railway.app ↗︎

Not seen in any discovery source since 2026-10-01.

Transactions · 30d
2
Volume · 30d
$0.02
Unique buyers · 30d
1
Uptime · 30d
100.0%
Latency p50
101ms
Reported calls · 30d
7

Endpoints (1 live)

  • POST /risk-check — Deterministic pre-sign risk screening for unsigned Base EVM transactions. Detects ERC20 transfers, token approvals, unlimited approvals, setApprovalForAll, malformed calldata and OFAC SDN and configured address matches. Returns machine-readable ALLOW, REVIEW or BLOCK. (0.003 USDC on Base)

First seen · last seen · last active