{
  "generated_at": "2026-04-24T15:01:35.625676+00:00",
  "slug": "transaction-simulator-production-up-railway-app-entrypoints-transaction-simulator-invoke",
  "title": "Transaction Simulator \u00b7 EVM Transaction Dry-Run",
  "url": "https://transaction-simulator-production.up.railway.app/entrypoints/transaction-simulator/invoke",
  "category": "compute",
  "summary": "Dry-run EVM transactions to preview state changes and failure modes before paying real gas.",
  "seo": {
    "title": "EVM Transaction Simulator API - x402 Pay-Per-Call",
    "description": "Simulate Ethereum and EVM transactions before on-chain execution. Test state changes and success status via x402 micropayments on Base."
  },
  "use_cases": [
    "Validate DeFi transaction parameters before execution",
    "Test smart contract interactions in sandboxed environment",
    "Estimate state changes for complex multi-step transactions"
  ],
  "ideal_buyer": "DeFi developers and MEV searchers who need to validate transaction outcomes without spending gas on failed attempts.",
  "example_prompt": "Simulate this swap transaction to see if it will succeed and what the output amount will be.",
  "example_request_body": {
    "transaction": {
      "to": "0x...",
      "data": "0x...",
      "value": "0"
    }
  },
  "risk_notes": [],
  "pricing_sanity": {
    "flag": "expensive",
    "ratio": 3,
    "median_category_atomic": 10000
  },
  "pricing_review_required": false,
  "pricing_decimal_suspect": false,
  "trust_tier": "indexed_external",
  "accepts": [
    {
      "scheme": "exact",
      "network": "base",
      "pay_to": "0x01d11f7e1a46abfc6092d7be484895d2d505095c",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "max_amount_required_atomic": "30000",
      "max_timeout_seconds": 30,
      "mime_type": "application/json",
      "description": "Payment required to access this resource",
      "verified": false,
      "hints": {
        "input": {
          "type": "http",
          "method": "POST",
          "bodyType": "json",
          "bodyFields": {
            "gas": {
              "type": "string",
              "required": false,
              "description": "Gas limit in hex (optional)"
            },
            "data": {
              "type": "string",
              "required": false,
              "description": "Transaction data in hex (default: 0x)"
            },
            "value": {
              "type": "string",
              "required": false,
              "description": "ETH value in hex (default: 0x0)"
            },
            "chain_id": {
              "type": "number",
              "required": true,
              "description": "Blockchain ID (1=Ethereum, 56=BSC, etc.)"
            },
            "gas_price": {
              "type": "string",
              "required": false,
              "description": "Gas price in hex (optional)"
            },
            "to_address": {
              "type": "string",
              "required": true,
              "description": "Recipient or contract address"
            },
            "from_address": {
              "type": "string",
              "required": true,
              "description": "Sender address"
            }
          }
        },
        "output": {
          "type": "object",
          "description": "Transaction simulation result with success status and state changes"
        }
      }
    }
  ],
  "origin": {
    "slug": "transaction-simulator-production-up-railway-app",
    "host": "transaction-simulator-production.up.railway.app",
    "title": "Transaction Simulator API",
    "description": "An x402-payable API origin hosted on Railway. No public homepage content is currently available; the service appears to be in a non-responsive or misconfigured state.",
    "url": "https://transaction-simulator-production.up.railway.app",
    "favicon": "https://transaction-simulator-production.up.railway.app/favicon.ico"
  },
  "json_ld": {
    "@id": "https://x402all.com/resource/transaction-simulator-production-up-railway-app-entrypoints-transaction-simulator-invoke",
    "url": "https://x402all.com/resource/transaction-simulator-production-up-railway-app-entrypoints-transaction-simulator-invoke",
    "name": "Transaction Simulator \u00b7 EVM Transaction Dry-Run",
    "@type": "WebAPI",
    "offers": {
      "url": "https://x402all.com/resource/transaction-simulator-production-up-railway-app-entrypoints-transaction-simulator-invoke",
      "@type": "Offer",
      "price": "0.03",
      "availability": "https://schema.org/InStock",
      "priceCurrency": "USDC",
      "priceSpecification": {
        "@type": "UnitPriceSpecification",
        "price": "0.030000",
        "unitText": "call",
        "priceCurrency": "USDC"
      },
      "eligibleCustomerType": "Agent",
      "additionalProperty": [
        {
          "@type": "PropertyValue",
          "name": "paymentNetwork",
          "value": "base"
        },
        {
          "@type": "PropertyValue",
          "name": "paymentAsset",
          "value": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
        }
      ]
    },
    "sameAs": "https://transaction-simulator-production.up.railway.app/entrypoints/transaction-simulator/invoke",
    "@context": "https://schema.org",
    "provider": {
      "@id": "https://x402all.com/server/transaction-simulator-production-up-railway-app",
      "url": "https://transaction-simulator-production.up.railway.app",
      "name": "Transaction Simulator API",
      "@type": "Organization"
    },
    "identifier": "transaction-simulator-production-up-railway-app-entrypoints-transaction-simulator-invoke",
    "description": "Simulate Ethereum and EVM transactions before on-chain execution. Test state changes and success status via x402 micropayments on Base.",
    "potentialAction": {
      "@type": "BuyAction",
      "target": "https://axon402.com/test-buy?resource=transaction-simulator-production-up-railway-app-entrypoints-transaction-simulator-invoke",
      "description": "Test-buy this endpoint on AXON"
    },
    "applicationCategory": "compute"
  },
  "axon_deep_link": "https://axon402.com/test-buy?resource=transaction-simulator-production-up-railway-app-entrypoints-transaction-simulator-invoke"
}