Index onlineMerchant portal
Api Endpoint

TxSim Decoder

One pre-sign safety verdict (GREEN, REVIEW or BLOCK) fusing transaction, signature, address, URL and token checks for AI wallet agents.

Open interactive test console

Offering

Provider
simulate.cyberwarex.com
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Security
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://simulate.cyberwarex.com/safe-to-sign
MIME type
application/json
First seen
2026-10-16T01:51:02.144Z
Last seen
Tags
pre-sign, Safety, firewall, wallet-security, transaction-risk

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.02 USDC
Atomic price: 20000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "20000",
    "payTo": "0x058D0Cc5CC97e61e8A9f38D6d6365bce525921B2"
  }
]

Observed health

Status
Healthy
Latest latency
368 ms
Average latency
890 ms
HTTP status
402
Last checked
Reachability
100% over 15 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET",
        "HEAD",
        "DELETE"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {
        "chain": {
          "type": "string",
          "description": "EVM chain for tx/token checks (base, bsc, ethereum, polygon, arbitrum, optimism). Default base."
        },
        "to": {
          "type": "string",
          "description": "Transaction target address (0x...)."
        },
        "data": {
          "type": "string",
          "description": "Transaction calldata hex (0x...)."
        },
        "value": {
          "type": "string",
          "description": "Native value (wei, decimal or hex). Default 0."
        },
        "from": {
          "type": "string",
          "description": "Sender address for the eth_call preview (optional)."
        },
        "typed_data": {
          "type": "string",
          "description": "EIP-712 typed data JSON string to check as a signature request."
        },
        "message": {
          "type": "string",
          "description": "personal_sign message to check (instead of typed_data)."
        },
        "address": {
          "type": "string",
          "description": "A counterparty address to risk-screen (optional; 'to' is screened automatically)."
        },
        "url": {
          "type": "string",
          "description": "A URL to phishing-check (optional)."
        },
        "token": {
          "type": "string",
          "description": "A token address to safety-check (optional; inferred from 'to' when it is a token)."
        }
      },
      "additionalProperties": false
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "type": "object",
  "properties": {
    "input": {
      "type": "object",
      "properties": {
        "type": {
          "type": "string",
          "const": "http"
        },
        "method": {
          "type": "string",
          "enum": [
            "GET",
            "HEAD",
            "DELETE"
          ]
        },
        "queryParams": {
          "type": "object",
          "properties": {
            "chain": {
              "type": "string",
              "description": "EVM chain for tx/token checks (base, bsc, ethereum, polygon, arbitrum, optimism). Default base."
            },
            "to": {
              "type": "string",
              "description": "Transaction target address (0x...)."
            },
            "data": {
              "type": "string",
              "description": "Transaction calldata hex (0x...)."
            },
            "value": {
              "type": "string",
              "description": "Native value (wei, decimal or hex). Default 0."
            },
            "from": {
              "type": "string",
              "description": "Sender address for the eth_call preview (optional)."
            },
            "typed_data": {
              "type": "string",
              "description": "EIP-712 typed data JSON string to check as a signature request."
            },
            "message": {
              "type": "string",
              "description": "personal_sign message to check (instead of typed_data)."
            },
            "address": {
              "type": "string",
              "description": "A counterparty address to risk-screen (optional; 'to' is screened automatically)."
            },
            "url": {
              "type": "string",
              "description": "A URL to phishing-check (optional)."
            },
            "token": {
              "type": "string",
              "description": "A token address to safety-check (optional; inferred from 'to' when it is a token)."
            }
          },
          "additionalProperties": false
        }
      },
      "required": [
        "type",
        "method"
      ],
      "additionalProperties": false
    }
  },
  "required": [
    "input"
  ]
}