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GPT55 Wallet Signing Safety Pack

https://gpt55.558686.xyz/v1/paid/wallet-signing-safety-pack

Overview

Buyer-owned x402 wallet signing safety pack for agents and wallets. Returns typed-data, calldata, chain, spender, allowance, receipt, and private-key boundary checks after payment. First-purchase activation is https://gpt55.558686.xyz/x402/wallet-signing-safety-pack.json and the dedicated buyer runtime is https://gpt55.558686.xyz/x402/wallet-signing-safety-pack-first-payment-client.mjs. The standard Payment-Required header now includes firstPaymentClient, paymentClientUrl, paymentActivationUrl, and sameRequestRetryRequired so header-only x402 clients can download the buyer-owned runtime, sign locally, and retry the same request with X-PAYMENT. Private keys are never sent to GPT55; use PAY_REAL_X402=1 EVM_PRIVATE_KEY=$EVM_PRIVATE_KEY in the downloaded client only from the buyer environment. Live quote is $0.018 exact x402 Base USDC.

Protocol x402 (POST)
Price —
Payment Asset —
Payment Network —
Category security/wallet
Provider gpt55
Source self-registered
Indexed 2026-07-04 20:46:09

Health

Status healthy
Latency (p50) 1352ms
Uptime (30d) 100.0%
Reliability Score 85/100
Last Checked 2026-08-27 10:32:10
Last Healthy 2026-08-27 10:32:10
Consecutive Failures 0

x402 Payment Validation

Payment Requirements Valid
Asset Verified Known USDC
Facilitator —

Recent Health Checks

Time Status HTTP Latency Error
2026-08-27 10:32:10 healthy 402 1671ms
2026-08-27 07:49:34 healthy 402 1135ms
2026-08-26 23:44:22 healthy 402 847ms
2026-08-26 16:28:52 healthy 402 1784ms
2026-08-26 02:58:39 healthy 402 900ms
2026-08-25 14:52:38 healthy 402 1464ms
2026-08-25 12:06:54 healthy 402 1407ms
2026-08-25 00:24:40 healthy 402 869ms
2026-08-24 22:01:59 healthy 402 1352ms
2026-08-24 12:59:35 healthy 402 882ms