Transaction simulation before signing (pre-sign safety check and drainer detecti
Transaction simulation before signing (pre-sign safety check and drainer detection): simulate an EVM transaction or an approve-then-swap sequence of up to 5 — revert check with reason, every asset leaving or entering the wallet, approvals granted, sanctions/scam screening of every counterparty, and a proceed/caution/avoid verdict. Ethereum, Base, Arbitrum, Optimism, Polygon, BNB Chain, Linea, Unichain, Sonic. 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/tx-simulate
| 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": {
"chain": "base",
"from": "0x8ec901f7e2710163387d70950f680f1ea2269d15",
"transactions": [
{
"data": "0xa9059cbb000000000000000000000000abababababababababababababababababababab00000000000000000000000000000000000000000000000000000000000f4240",
"to": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
}
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"chain": {
"default": "base",
"enum": [
"ethereum",
"base",
"arbitrum",
"optimism",
"polygon",
"bsc",
"linea",
"unichain",
"sonic"
],
"type": "string"
},
"from": {
"description": "Wallet that will sign",
"pattern": "^0x[a-fA-F0-9]{40}$",
"type": "string"
},
"transactions": {
"items": {
"properties": {
"data": {
"default": "0x",
"type": "string"
},
"gas": {
"type": "string"
},
"to": {
"type": "string"
},
"value": {
"default": "0x0",
"description": "Wei, hex or decimal",
"type": "string"
}
},
"required": [
"to"
],
"type": "object"
},
"maxItems": 5,
"minItems": 1,
"type": "array"
}
},
"required": [
"from",
"transactions"
],
"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": {
"approvals": {
"type": "array"
},
"assetChanges": {
"type": "array"
},
"calls": {
"type": "array"
},
"counterparties": {
"type": "array"
},
"reasons": {
"items": {
"type": "string"
},
"type": "array"
},
"relatedServices": {
"type": "array"
},
"verdict": {
"enum": [
"proceed",
"caution",
"avoid"
],
"type": "string"
}
},
"required": [
"verdict",
"reasons",
"calls",
"assetChanges",
"approvals",
"counterparties"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}