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Wallet Signing Safety Pack (GET) — Pre-Sign Risk Analysis
x402
Wallet Signing Safety Pack (GET) — Pre-Sign Risk Analysis is a paid API for AI agents from gpt55.558686.xyz, paid per call via x402, $0.018/call, status unknown (last checked 2026-09-14).
Analyzes EIP-712 typed data, EVM calldata, and x402 payment quotes to produce a risk assessment, decision checklist, and routing hints before a wallet signs or pays — without executing any transaction.
Price / call$0.018
Success—
StatusUnknown
How this service works
Build a single wallet/agent pre-signing decision pack from optional EIP-712 typed data, EVM calldata, expected chain, known addresses, and x402 spend policy. Returns risk levels, risk flags, buyer decision, copy-paste checklist, and first-payment routing hints without using a private key, producing a signature, sending a transaction, broadcasting, or calling external RPC. GET variant for agents, crawlers, and wallets that prefer query parameters over a JSON body. Pay up to $0.018 per request with x402 USDC on Base.
Output
Returns a structured safety pack including: an overall risk level (e.g. low/medium/high), a list of risk flags (e.g. unverified recipient, unusual calldata patterns, chain mismatch), a buyer decision recommendation (approve/reject/review), a copy-paste pre-signing checklist, and first-payment routing hints for x402 flows. No private key, signature, or on-chain action is produced.
Example use cases
Example prompt
“Before I sign this transaction, can you run a wallet signing safety check on it? The calldata is 0xa9059cbb000000000000000000000000abcdef1234567890abcdef1234567890abcdef12000000000000000000000000000000000000000000000000002386f26fc10000, the recipient is 0xAbCdEf1234567890AbCdEf1234567890AbCdEf12, on Base (chain ID 8453), and I want to spend no more than 0.018 USDC — give me risk flags and a decision checklist.”
Technical details
Endpoint
GEThttps://gpt55.558686.xyz/v1/tools/wallet-signing-safety-packWhen to prefer
Use this endpoint when an AI agent or wallet UI needs a lightweight, read-only pre-signing risk assessment before presenting a sign/approve decision to a user. Prefer it over on-chain simulation tools when no RPC call or private key should be involved, and over generic security scanners when x402 payment quote validation and EIP-712 typed data analysis are both needed in a single response. The GET variant is ideal for agents, crawlers, and wallets that prefer query parameters over JSON bodies.
Side effects
- Missing required 'input' wrapper or method field returns 400 validation error
- Malformed or oversized calldata/typedData (>20000 chars) rejected with schema validation error
- Invalid chain ID or unrecognized network string may reduce analysis accuracy
- x402 payment not provided or insufficient USDC results in 402 Payment Required
- Ambiguous or conflicting query parameters (e.g. both 'calldata' and 'data') may produce partial analysis
- Very complex ABI-encoded calldata may yield lower-confidence risk flags
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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