Overview

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.

Protocol x402
Price
Payment Asset
Payment Network
Category developer-tool
Provider gpt55-main-model-gateway
Source self-registered
Indexed 2026-07-04 20:46:09

Health

Status healthy
Latency (p50) 842ms
Uptime (30d) 100.0%
Reliability Score 82/100
Last Checked 2026-07-05 01:11:17
Last Healthy 2026-07-05 01:11:17
Consecutive Failures 0

x402 Payment Validation

Payment Requirements Valid
Asset Verified Known USDC
Facilitator

Recent Health Checks

Time Status HTTP Latency Error
2026-07-05 01:11:17 healthy 402 842ms