ScriptMasterLabs.com · x402 Directory
https://api.algovault.com/x402/pre_trade_check
Resource: https://api.algovault.com/x402/pre_trade_check · Directory page generated 2026-11-09T17:50:05.039Z from live sources.
The facts, as last reported 2026-11-09T17:31:33.337Z: this resource answers x402 payment challenges at 0.02 USDC on Base (exact), pay to 0x778A05280Fd8dB980E920fE9f31d0A8eAbD17d59. It is reported by Coinbase CDP and its directory state is live.
What it does
Pre-trade check of a perpetual-futures order against the caller's own rules: each rule passes or fails with its numbers, then GO / CAUTION / WAIT with machine-readable reasons. Adds isolated liquidation distance per venue and whether it hit
Payment options
| Network | Scheme | Asset | Amount | Pay to |
|---|---|---|---|---|
| Baseeip155:8453 | exact | USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | 0.0220000 atomic | 0x778A05280Fd8dB980E920fE9f31d0A8eAbD17d59 |
| Optimismeip155:10 | exact | USDC0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85 | 0.0220000 atomic | 0x11447b963c1408E7c84868314eF2fe9304768717 |
Verification — the enrichment record
| Verification state | facilitator-reported |
|---|---|
| Verified / reported at | 2026-11-09T17:31:33.337Z |
| Settlement recency | listing last updated 2026-11-09T17:18:56.123Z at its source |
| Freshness | live — last reported 2026-11-09T17:31:33.337Z, listing last updated at source 2026-11-09T17:18:56.123Z |
| Reporting facilitator | Coinbase CDP |
| Sources | cdp |
Call it
An unpaid call returns the live 402 challenge — that challenge, not this page, is the price quote:
curl -i "https://api.algovault.com/x402/pre_trade_check"
Pay it with any x402 client on Base, Optimism. Networks: Base · Optimism