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Wallet Signing Safety Pack
x402
Wallet Signing Safety Pack is a paid API for AI agents from gpt55.558686.xyz, paid per call via x402, $0.018/call, status unknown (last checked 2026-10-22).
Runs bundled pre-sign safety checks on EIP-712, Permit2, calldata, token approvals, and x402 payment quotes before an agent or wallet signs or pays
Price / call$0.018
Success—
StatusUnknown
How this service works
GPT-5.6 Luna API Base USDC and OpenAI-compatible x402 chat: one request for $0.00293, paid by browser wallet or a quote-first agent fallback.
Output
Returns a safety decision object with an ok boolean, the tool name used, a timestamp, and structured risk findings covering EIP-712 validity, Permit2 legitimacy, calldata anomalies, approval risk level, and x402 prepay policy compliance — indicating whether the agent should sign, pay, or escalate for manual review.
Example use cases
Example prompt
“Before my wallet signs this Permit2 request to approve 500 USDC to contract 0xabc...123 on Base, run the wallet signing safety pack to check for phishing, calldata risks, and x402 policy compliance — escalate if anything looks off.”
Technical details
Endpoint
GEThttps://gpt55.558686.xyz/v1/paid/wallet-signing-safety-pack?utm_source=zero.xyzWhen to prefer
Use this endpoint when an AI agent or automated wallet needs a single bundled pre-sign safety gate covering EIP-712, Permit2, calldata, approvals, and x402 payment policy in one call — especially in agentic pipelines where speed and cost matter and manual review must be triggered only on genuine risk signals.
Side effects
- Missing required 'type' or 'method' fields returns a 400 validation error
- Malformed or oversized calldata/typedData exceeding schema limits causes rejection
- Invalid chain ID or unrecognized contract address may return inconclusive safety result
- Payment failure or insufficient USDC balance on Base causes x402 402 response
- Ambiguous or missing buyer_intent may reduce policy check accuracy
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
Reviews
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Zero review prompt (fires after every successful call)
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