EIP-712 Signature Risk DecoderGET /v1/paid/eip712-signature-risk-decoder · x402 API by gpt55
Machine-buyable EIP-712 pre-signing risk decoder for wallets, agents, and security tools. Inspects typed-data domains, Permit and Permit2 fields, spender, value, deadline, nonce, chainId, and verifyingContract risk before a user signs. Costs $0.01 exact x402 Base USDC and never asks for private keys or broadcasts transactions.
What does this x402 API do?
EIP-712 Signature Risk Decoder. This is an x402-gated GET API resource from gpt55. TOLL·402 confirmed a protocol-valid HTTP 402 quote on 2026-07-21. No normalized USD price is recorded; the listing names Base. No settled paid call has been verified.
- Published price
- No normalized USD price is recorded
- Networks
- Base
- Latest evidence
- TOLL·402 confirmed a protocol-valid HTTP 402 quote on 2026-07-21
- Resource ID
- c721b891768a666e502399fa
Start with a quote-only recipe. Payment signing stays in your project.
const response = await fetch("https://gpt55.558686.xyz/v1/paid/eip712-signature-risk-decoder", {
method: "GET",
});
console.log(response.status);
console.log(Object.fromEntries(response.headers));
console.log((await response.text()).slice(0, 1000));
// A valid 402 is a quote, not a completed paid call.This sends no payment. Inspect the 402 response before adding a wallet-enabled client.
- Live 402 quote confirmed
GET returned a protocol-valid 402 quote (402). No payment was made.
- Origin reachable
HEAD https://gpt55.558686.xyz/ returned 200.
- Observed in 402-index
Discovered through self-registered.
- Registry record checked
Registry health: healthy.
What evidence supports this listing?
Each record has an exact-route quote outcome. Unresolved templates and potentially mutating methods are labeled instead of being invoked without provider-specific test input. A quote is still separate from a settled paid call. Read the discovery and verification methodology →
Which networks and payment options does it accept?
The normalized listing price is No normalized USD price is recorded. Raw protocol requirements remain visible below for implementation and audit use.