Signature phishing check before an agent signs
Signature phishing check before an agent signs: decodes EIP-712 typed data (ERC-20 permit, Permit2 allowance or transfer, Seaport order, transfer authorization) or an x402 payment request, says in one sentence what signing would allow, screens every spender and payee for sanctions and scams, and catches drainer patterns (permits to plain wallets, sell-for-nothing orders, fake USDC domains, over-priced x402 payments). Verdict proceed/caution/avoid. Category: security.
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://agentforge-taupe.vercel.app/v1/signature-check
| Category | Company and compliance |
|---|---|
| Provider host | agentforge-taupe.vercel.app |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 0 from 0 payers (the provider's figure, not ours) |
Our checks, last 30 days
We never call tools that send, buy, move money or file anything, not even without paying.
Example input (from the provider)
{
"body": {
"signer": "0x8ec901f7e2710163387d70950f680f1ea2269d15",
"typedData": {
"domain": {
"chainId": 8453,
"name": "USD Coin",
"verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"version": "2"
},
"message": {
"deadline": 1900000000,
"nonce": 0,
"owner": "0x8ec901f7e2710163387d70950f680f1ea2269d15",
"spender": "0x6fF5693b99212Da76ad316178A184AB56D299b43",
"value": "1000000"
},
"primaryType": "Permit"
}
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"chain": {
"enum": [
"ethereum",
"base",
"arbitrum",
"optimism",
"polygon",
"bsc",
"avalanche",
"linea",
"unichain",
"sonic"
],
"type": "string"
},
"expectedMaxUsd": {
"description": "x402 only: refuse options above this price",
"type": "number"
},
"paymentRequired": {
"description": "x402 PaymentRequired with accepts[] that the agent is about to pay",
"type": "object"
},
"signer": {
"pattern": "^0x[a-fA-F0-9]{40}$",
"type": "string"
},
"typedData": {
"description": "EIP-712 typed data { domain, types, primaryType, message } (or its JSON string)",
"type": "object"
}
},
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"counterparties": {
"type": "array"
},
"grants": {
"type": "array"
},
"kind": {
"type": "string"
},
"paymentOptions": {
"type": "array"
},
"reasons": {
"items": {
"type": "string"
},
"type": "array"
},
"summary": {
"type": "string"
},
"verdict": {
"enum": [
"proceed",
"caution",
"avoid"
],
"type": "string"
}
},
"required": [
"kind",
"verdict",
"summary",
"reasons",
"grants",
"counterparties"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}