EVM Tx Toolkit

{
  "name": "EVM Tx Toolkit",
  "description": "Six premium x402 endpoints across 5 EVM chains: canonical /v1 routes plus OATP-style /tools/tx_explainer, /tools/tx_simulator, /tools/token_risk_scan aliases for transaction explainer, transaction simulation, pre-signing safety, rug risk, token risk scan, approval risk, balance changes, and 0-100 risk score discovery.",
  "url": "https://evm-tx-toolkit.mtree.workers.dev",
  "version": "0.1.0",
  "documentationUrl": "https://evm-tx-toolkit.mtree.workers.dev/docs",
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false
  },
  "authentication": {
    "schemes": [
      "x402"
    ],
    "credentials": "Pay-per-call via x402 USDC on Base \u2014 no signup, no API key. Each call returns 402 with an EXACT-scheme requirement; agents pay 0x1664530DC2A1CA350B1dbaD1Fc1F1a70c90fe4de in Base USDC and retry with X-PAYMENT."
  },
  "defaultInputModes": [
    "application/json"
  ],
  "defaultOutputModes": [
    "application/json"
  ],
  "skills": [
    {
      "id": "tx-explain",
      "name": "Transaction Explainer (EVM)",
      "description": "Decode a confirmed transaction on Base, Ethereum, Arbitrum, Optimism, or Polygon into a human-readable summary with all token transfers, swap legs, and event labels. $0.10/call.",
      "tags": [
        "base",
        "ethereum",
        "arbitrum",
        "optimism",
        "polygon",
        "evm",
        "transaction",
        "explain",
        "decode",
        "trace",
        "multichain"
      ],
      "examples": [
        "Explain this base tx: 0x... \u2014 what swap was this and what tokens moved?",
        "Decode tx 0x... on arbitrum and tell me why it reverted",
        "Explain this polygon tx: 0x..."
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ]
    },
    {
      "id": "tx-simulate",
      "name": "Transaction Simulator (EVM)",
      "description": "Simulate an unsent transaction on Base, Ethereum, Arbitrum, Optimism, or Polygon. Returns success/revert + decoded revert reason + gas estimate. $0.20/call.",
      "tags": [
        "base",
        "ethereum",
        "arbitrum",
        "optimism",
        "polygon",
        "evm",
        "simulate",
        "preflight",
        "eth_call",
        "trace",
        "multichain"
      ],
      "examples": [
        "Simulate this base swap from 0xabc... to UniswapV3 with this calldata \u2014 does it revert?",
        "Will this approve+swap sequence on optimism succeed at the latest block?",
        "Simulate this arbitrum tx before I send it"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ]
    },
    {
      "id": "token-risk-scan",
      "name": "ERC-20 Risk Scan",
      "description": "Score an ERC-20 on Base, Ethereum, Arbitrum, Optimism, or Polygon for rug/risk factors: proxy detection, mint authority, honeypot (via GoPlus), tax, ownership, composite 0\u2013100 score + verdict. $0.50/call.",
      "tags": [
        "base",
        "ethereum",
        "arbitrum",
        "optimism",
        "polygon",
        "evm",
        "erc20",
        "rug",
        "honeypot",
        "risk",
        "holders",
        "proxy",
        "multichain"
      ],
      "examples": [
        "Risk-scan this base ERC-20: 0x4200000000000000000000000000000000000006",
        "Is this polygon token a honeypot? 0x...",
        "Risk-scan an arbitrum token: 0x..."
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ]
    },
    {
      "id": "tx-explainer-alias",
      "name": "tx_explainer \u2014 Transaction Explainer Alias",
      "description": "Winner-shaped /tools/tx_explainer route: EVM transaction explainer for human-readable transaction summaries, contracts invoked, token balance changes, approvals, gas/fee, transfers, and one-line summary. $0.10/call.",
      "tags": [
        "tx_explainer",
        "transaction explainer",
        "transaction",
        "balance changes",
        "approval risk",
        "pre-signing",
        "base",
        "evm"
      ],
      "examples": [
        "Use /tools/tx_explainer to explain this Base transaction and list balance changes"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ]
    },
    {
      "id": "tx-simulator-alias",
      "name": "tx_simulator \u2014 Transaction Simulation Alias",
      "description": "Winner-shaped /tools/tx_simulator route: EVM transaction simulation for pre-signing safety, revert reason, gas estimate, approval risk, and likely balance-change posture. $0.20/call.",
      "tags": [
        "tx_simulator",
        "transaction simulation",
        "pre-signing",
        "simulate",
        "approval risk",
        "base",
        "evm"
      ],
      "examples": [
        "Use /tools/tx_simulator to simulate this call before signing"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ]
    },
    {
      "id": "token-risk-scan-alias",
      "name": "token_risk_scan \u2014 Rug Risk / Token Risk Scan Alias",
      "description": "Winner-shaped /tools/token_risk_scan route: Base/EVM token risk scan for rug risk, honeypot/tax flags, proxy/owner control, holder/liquidity danger, approval risk, and 0-100 risk score. $0.50/call.",
      "tags": [
        "token_risk_scan",
        "token risk scan",
        "rug risk",
        "0-100 risk score",
        "approval risk",
        "liquidity",
        "holder concentration",
        "base",
        "evm"
      ],
      "examples": [
        "Use /tools/token_risk_scan before buying this Base memecoin"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ]
    }
  ]
}