GPT55 Wallet Signing Safety Pack
https://gpt55.558686.xyz/v1/paid/wallet-signing-safety-packOverview
Wallet signing safety pack for x402 buyer-owned runtimes. Fetch the live HTTP 402 quote, keep private keys in the buyer runtime, then retry the same request with X-PAYMENT. Copy-ready first paid request: curl -fsSL https://gpt55.558686.xyz/x402/wallet-signing-safety-pack-first-payment-client.mjs -o first-payment-client.mjs && npm install @x402/fetch @x402/core @x402/evm @x402/svm viem @solana/kit @scure/base && PAY_REAL_X402=1 EVM_PRIVATE_KEY=0x... node first-payment-client.mjs. Generic clients can also discover the same handoff from X-First-Payment-Client, X-Download-Install-Then-Pay-Command, and Link rel=payment-client.
Health
x402 Payment Validation
Recent Health Checks
| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-07-05 01:11:17 | healthy | 402 | 842ms |