evmscope

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EVM blockchain intelligence toolkit. 26 tools across 7 chains — use as a CLI or MCP server. Token prices, gas comparison, swap quotes, yield rates, honeypot detection, bridge routes, tx simulation, NFT lookup, governance proposals, portfolio tracking, and more.

Features

• 26 tools — Price, gas compare, swap quote, yield rates, honeypot detection, bridge routes, tx simulation, event logs, token holders, approval status, TVL, whale tracking, balance, token info, ENS, tx status, tx decode, ABI lookup, address ID, NFT info, NFT metadata, governance proposals, block info, token transfers, portfolio
• 7 EVM chains — Ethereum, Polygon, Arbitrum, Base, Optimism, Avalanche, BSC
• 49 built-in tokens — ETH, USDC, USDT, WETH, LINK, UNI, AAVE, ARB, OP, PEPE, and more
• 30+ labeled addresses — Exchanges, DeFi protocols, bridges, whale wallets
• Zero config — No API keys required. Works out of the box with free public APIs
• Read-only — No transaction execution. Zero risk of fund loss
• Dual mode — CLI for direct terminal use, MCP server for AI agent integration

Quick Start

CLI

npx evmscope price ETH
npx evmscope gas
npx evmscope balance 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045
npx evmscope portfolio 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045
npx evmscope compare-gas
npx evmscope tvl Aave
npx evmscope swap ETH USDC 1.0
npx evmscope block latest
npx evmscope transfers 0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045
npx evmscope honeypot 0x...

Run npx evmscope --help to see all 22 commands. Add --json for raw JSON output.

MCP Server

Start as an MCP server (no arguments):

npx evmscope

Claude Code

claude mcp add evmscope -- npx -y evmscope

Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "evmscope": {
      "command": "npx",
      "args": ["-y", "evmscope"]
    }
  }
}

Cursor

Add to .cursor/mcp.json:

{
  "mcpServers": {
    "evmscope": {
      "command": "npx",
      "args": ["-y", "evmscope"]
    }
  }
}

Tools

getTokenPrice

Get current token price, 24h change, market cap, and volume.

// Input
{ "token": "ETH", "chain": "ethereum" }

// Output
{
  "success": true,
  "data": {
    "symbol": "ETH",
    "name": "Ethereum",
    "priceUsd": 1929.20,
    "change24h": -2.34,
    "marketCap": 232000000000,
    "volume24h": 12500000000
  }
}

getGasPrice

Get current gas prices in slow/normal/fast tiers with USD estimates.

// Input
{ "chain": "ethereum" }

// Output
{
  "success": true,
  "data": {
    "slow": { "maxFeePerGas": "18.5", "maxPriorityFeePerGas": "1.2", "estimatedCostUsd": 0.75 },
    "normal": { "maxFeePerGas": "20.0", "maxPriorityFeePerGas": "1.5", "estimatedCostUsd": 0.81 },
    "fast": { "maxFeePerGas": "22.5", "maxPriorityFeePerGas": "2.25", "estimatedCostUsd": 0.91 },
    "baseFee": "17.3",
    "lastBlock": 19234567
  }
}

getBalance

Get native token + ERC-20 token balances with USD values.

// Input
{ "address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045", "chain": "ethereum" }

// Output
{
  "success": true,
  "data": {
    "address": "0xd8dA...",
    "nativeBalance": { "symbol": "ETH", "balanceFormatted": "1.234", "valueUsd": 2382.50 },
    "tokenBalances": [
      { "symbol": "USDC", "balanceFormatted": "1.0", "valueUsd": 1.00 }
    ],
    "totalValueUsd": 2383.50
  }
}

getTokenInfo

Get ERC-20 token metadata (name, symbol, decimals, total supply).

// Input
{ "token": "USDC", "chain": "ethereum" }

// Output
{
  "success": true,
  "data": {
    "address": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
    "name": "USD Coin",
    "symbol": "USDC",
    "decimals": 6,
    "totalSupply": "26000000000"
  }
}

resolveENS

Resolve ENS names to addresses and vice versa (Ethereum mainnet only).

// Input
{ "nameOrAddress": "vitalik.eth" }

// Output
{
  "success": true,
  "data": {
    "name": "vitalik.eth",
    "address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
    "avatar": "https://...",
    "resolved": "name_to_address"
  }
}

getTxStatus

Get transaction status, receipt, confirmations, and gas usage.

// Input
{ "txHash": "0xabc...def", "chain": "ethereum" }

// Output
{
  "success": true,
  "data": {
    "hash": "0xabc...def",
    "status": "success",
    "blockNumber": 19234567,
    "confirmations": 42,
    "from": "0x1234...",
    "to": "0x5678...",
    "value": "1.5",
    "gasUsed": "21000",
    "effectiveGasPrice": "20.0",
    "timestamp": 1741521600
  }
}

decodeTx

Decode a transaction into structured JSON — function name, parameters, event logs.

// Input
{ "txHash": "0xabc...def", "chain": "ethereum" }

// Output
{
  "success": true,
  "data": {
    "hash": "0xabc...def",
    "from": "0x1234...",
    "to": "0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D",
    "value": "1.0",
    "status": "success",
    "function": {
      "name": "swapExactETHForTokens",
      "signature": "swapExactETHForTokens(uint256,address[],address,uint256)",
      "args": { "amountOutMin": "1000000", "path": ["0xC02a...", "0xA0b8..."] }
    },
    "events": [
      { "name": "Transfer", "address": "0xA0b8...", "args": { "from": "0x...", "to": "0x...", "value": "1000000" } }
    ],
    "gasUsed": "150000",
    "gasPrice": "20.0"
  }
}

getContractABI

Look up a verified contract's ABI (Etherscan → Sourcify fallback).

// Input
{ "address": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48", "chain": "ethereum" }

// Output
{
  "success": true,
  "data": {
    "address": "0xA0b8...",
    "abi": [...],
    "source": "etherscan",
    "contractName": "FiatTokenV2_2",
    "isContract": true,
    "functionCount": 42,
    "eventCount": 8
  }
}

identifyAddress

Identify an address — exchange, DeFi protocol, whale wallet, or EOA.

// Input
{ "address": "0x28C6c06298d514Db089934071355E5743bf21d60", "chain": "ethereum" }

// Output
{
  "success": true,
  "data": {
    "address": "0x28C6...",
    "label": "Binance Hot Wallet",
    "category": "exchange",
    "protocol": null,
    "isContract": false,
    "tags": ["cex", "binance"]
  }
}

compareGas

Compare gas fees across all 7 EVM chains at once, sorted by lowest cost.

// Input
{}

// Output
{
  "success": true,
  "data": {
    "chains": [
      { "chain": "base", "baseFeeGwei": "0.01", "estimatedCostUsd": 0.0001 },
      { "chain": "arbitrum", "baseFeeGwei": "0.1", "estimatedCostUsd": 0.004 },
      { "chain": "optimism", "baseFeeGwei": "0.05", "estimatedCostUsd": 0.002 },
      { "chain": "polygon", "baseFeeGwei": "30.0", "estimatedCostUsd": 0.01 },
      { "chain": "ethereum", "baseFeeGwei": "20.0", "estimatedCostUsd": 0.81 }
    ],
    "cheapest": "base",
    "mostExpensive": "ethereum"
  }
}

getApprovalStatus

Check ERC-20 token approval (allowance) status. Auto-checks major DeFi protocols with risk level assessment.

// Input
{ "owner": "0xd8dA...", "token": "USDC", "chain": "ethereum" }

// Output
{
  "success": true,
  "data": {
    "owner": "0xd8dA...",
    "token": "USDC",
    "tokenAddress": "0xA0b8...",
    "approvals": [
      { "protocol": "Uniswap V3 (router)", "spender": "0xE592...", "allowance": "unlimited", "isUnlimited": true }
    ],
    "riskLevel": "moderate"
  }
}

getProtocolTVL

Get DeFi protocol TVL (Total Value Locked) via DefiLlama — chain breakdown, 24h/7d changes.

// Input
{ "protocol": "Aave" }

// Output
{
  "success": true,
  "data": {
    "protocol": "Aave",
    "slug": "aave",
    "totalTvlUsd": 12000000000,
    "change24h": 1.5,
    "change7d": -3.2,
    "chainBreakdown": [
      { "chain": "Ethereum", "tvlUsd": 8000000000, "percentage": 66.67 },
      { "chain": "Polygon", "tvlUsd": 2000000000, "percentage": 16.67 }
    ]
  }
}

getWhaleMovements

Track large token transfers (whale movements). Classifies exchange deposit/withdrawal direction.

// Input
{ "token": "USDC", "chain": "ethereum", "minValueUsd": 100000, "limit": 10 }

// Output
{
  "success": true,
  "data": {
    "token": "USDC",
    "tokenAddress": "0xA0b8...",
    "movements": [
      { "txHash": "0xabc...", "from": "0x1234...", "to": "0x28C6...", "fromLabel": null, "toLabel": "Binance Hot Wallet", "value": "500000.00", "valueUsd": 500000, "direction": "exchange_deposit", "timestamp": 1710000000 }
    ],
    "summary": { "totalMovements": 1, "totalValueUsd": 500000, "netExchangeFlow": 500000 }
  }
}

getSwapQuote

Get DEX swap quotes via ParaSwap — optimal route, gas cost, auto ETH→WETH conversion.

// Input
{ "tokenIn": "ETH", "tokenOut": "USDC", "amountIn": "1.0", "chain": "ethereum" }

// Output
{
  "success": true,
  "data": {
    "tokenIn": { "symbol": "ETH", "address": "0xEeee...", "amount": "1.000000" },
    "tokenOut": { "symbol": "USDC", "address": "0xA0b8...", "amount": "1929.200000" },
    "exchangeRate": 1929.2,
    "priceImpact": null,
    "source": "UniswapV3",
    "estimatedGasUsd": "3.50"
  }
}

getYieldRates

Get DeFi yield rates (APY) from DefiLlama. Filter by protocol, chain, minimum TVL.

// Input
{ "protocol": "aave-v3", "chain": "Ethereum", "minTvl": 1000000 }

// Output
{
  "success": true,
  "data": {
    "pools": [
      { "project": "aave-v3", "symbol": "USDC", "chain": "Ethereum", "apy": 5.2, "tvlUsd": 500000000, "stablecoin": true }
    ],
    "count": 10
  }
}

getContractEvents

Get contract event logs with automatic ABI decoding.

// Input
{ "address": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48", "chain": "ethereum", "limit": 5 }

// Output
{
  "success": true,
  "data": {
    "events": [
      { "name": "Transfer", "args": { "from": "0x...", "to": "0x...", "value": "1000000" }, "txHash": "0x...", "blockNumber": 19234567 }
    ],
    "count": 5,
    "fromBlock": 19233567,
    "toBlock": 19234567
  }
}

getTokenHolders

Get top token holders. Ethereum uses Ethplorer, other chains aggregate from Etherscan transfers.

// Input
{ "token": "USDC", "chain": "ethereum", "limit": 10 }

// Output
{
  "success": true,
  "data": {
    "token": "0xA0b8...",
    "holders": [
      { "address": "0x...", "balance": "1000000", "share": 15.5 }
    ],
    "totalHolders": 12345
  }
}

simulateTx

Simulate a transaction via eth_call + estimateGas. Returns gas estimate in USD and revert reason on failure.

// Input
{ "from": "0x1234...", "to": "0x5678...", "data": "0xa9059cbb...", "chain": "ethereum" }

// Output
{
  "success": true,
  "data": {
    "success": true,
    "gasEstimate": "65000",
    "gasEstimateUsd": 2.50,
    "returnData": "0x0000...0001",
    "error": null
  }
}

checkHoneypot

Detect honeypot (scam) tokens via Honeypot.is. Returns buy/sell tax, risk level, and flags.

// Input
{ "token": "0x...", "chain": "ethereum" }

// Output
{
  "success": true,
  "data": {
    "isHoneypot": false,
    "riskLevel": "safe",
    "buyTax": 0,
    "sellTax": 0,
    "flags": [],
    "tokenName": "USD Coin",
    "tokenSymbol": "USDC"
  }
}

getBridgeRoutes

Get cross-chain bridge routes via LI.FI. Compares fees, time, and output amount.

// Input
{ "fromChain": "ethereum", "toChain": "arbitrum", "token": "USDC", "amount": "100" }

// Output
{
  "success": true,
  "data": {
    "routes": [
      { "bridge": "Stargate", "estimatedTime": 60, "feeUsd": 0.50, "gasCostUsd": 2.10, "amountOut": "99.50", "amountOutUsd": 99.50 }
    ],
    "bestRoute": { "bridge": "Stargate", "..." : "..." }
  }
}

getNFTInfo

Get ERC-721 NFT balance and token list for a wallet.

// Input
{ "address": "0xd8dA...", "contractAddress": "0x...", "chain": "ethereum" }

// Output
{
  "success": true,
  "data": {
    "chain": "ethereum",
    "contractAddress": "0x...",
    "owner": "0xd8dA...",
    "totalBalance": 3,
    "nfts": [
      { "tokenId": "1234", "tokenURI": "ipfs://..." }
    ]
  }
}

getNFTMetadata

Get metadata for a specific NFT token (name, image, attributes).

// Input
{ "contractAddress": "0x...", "tokenId": "1234", "chain": "ethereum" }

// Output
{
  "success": true,
  "data": {
    "contractAddress": "0x...",
    "tokenId": "1234",
    "tokenURI": "ipfs://...",
    "metadata": {
      "name": "Cool NFT #1234",
      "description": "A very cool NFT",
      "image": "ipfs://...",
      "attributes": [
        { "trait_type": "Background", "value": "Blue" }
      ]
    }
  }
}

getGovernanceProposals

Get governance proposals from Snapshot (active, closed, or all).

// Input
{ "protocol": "uniswap", "state": "active" }

// Output
{
  "success": true,
  "data": {
    "space": "uniswapgovernance.eth",
    "state": "active",
    "proposals": [
      {
        "title": "Proposal Title",
        "state": "active",
        "author": "0x1234...",
        "start": "2025-01-01",
        "end": "2025-01-07",
        "votes": 1500,
        "quorum": 1000,
        "choices": ["For", "Against"],
        "scores": [75.5, 24.5]
      }
    ]
  }
}

getBlockInfo

Block details (timestamp, gas, transactions, validator) by number or latest.

// Input
{ "blockNumber": 19234567, "chain": "ethereum" }

// Output
{
  "success": true,
  "data": {
    "number": 19234567,
    "timestamp": 1741521600,
    "gasUsed": "12345678",
    "gasLimit": "30000000",
    "baseFeePerGas": "20.0",
    "transactionCount": 150,
    "miner": "0x1234..."
  }
}

getTokenTransfers

Recent ERC-20 token transfer history for a wallet address.

// Input
{ "address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045", "chain": "ethereum", "limit": 5 }

// Output
{
  "success": true,
  "data": {
    "transfers": [
      { "token": "USDC", "from": "0x1234...", "to": "0xd8dA...", "value": "1000.00", "direction": "in", "txHash": "0xabc...", "timestamp": 1741521600 }
    ],
    "count": 5
  }
}

getPortfolio

Complete wallet portfolio with native + ERC-20 balances and USD values.

// Input
{ "address": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045", "chain": "ethereum" }

// Output
{
  "success": true,
  "data": {
    "address": "0xd8dA...",
    "native": { "symbol": "ETH", "balance": "1.234", "valueUsd": 2382.50 },
    "tokens": [
      { "symbol": "USDC", "balance": "1000.00", "valueUsd": 1000.00, "percentage": 29.6 }
    ],
    "totalValueUsd": 3382.50
  }
}

Supported Chains

Chain	Chain ID	Native Token
Ethereum	1	ETH
Polygon	137	POL
Arbitrum	42161	ETH
Base	8453	ETH
Optimism	10	ETH
Avalanche	43114	AVAX
BSC	56	BNB

Environment Variables (Optional)

All environment variables are optional. evmscope works without any configuration.

Variable	Purpose	Default
EVMSCOPE_RPC_URL	Custom RPC endpoint (all chains)	Public RPC
EVMSCOPE_RPC_URL_ETHEREUM	Ethereum-specific RPC endpoint	Falls back to RPC_URL
EVMSCOPE_RPC_URL_POLYGON	Polygon-specific RPC endpoint	Falls back to RPC_URL
EVMSCOPE_RPC_URL_ARBITRUM	Arbitrum-specific RPC endpoint	Falls back to RPC_URL
EVMSCOPE_RPC_URL_BASE	Base-specific RPC endpoint	Falls back to RPC_URL
EVMSCOPE_RPC_URL_OPTIMISM	Optimism-specific RPC endpoint	Falls back to RPC_URL
EVMSCOPE_RPC_URL_AVALANCHE	Avalanche-specific RPC endpoint	Falls back to RPC_URL
EVMSCOPE_RPC_URL_BSC	BSC-specific RPC endpoint	Falls back to RPC_URL
EVMSCOPE_COINGECKO_KEY	CoinGecko API key (higher rate limits)	Free tier
EVMSCOPE_ETHERSCAN_KEY	Etherscan API key (higher rate limits)	Free tier
EVMSCOPE_POLYGONSCAN_KEY	Polygonscan API key	Falls back to ETHERSCAN_KEY
EVMSCOPE_ARBISCAN_KEY	Arbiscan API key	Falls back to ETHERSCAN_KEY
EVMSCOPE_BASESCAN_KEY	Basescan API key	Falls back to ETHERSCAN_KEY
EVMSCOPE_OPTIMISTIC_KEY	Optimistic Etherscan API key	Falls back to ETHERSCAN_KEY
EVMSCOPE_SNOWTRACE_KEY	Snowtrace API key (Avalanche)	Falls back to ETHERSCAN_KEY
EVMSCOPE_BSCSCAN_KEY	BscScan API key (BSC)	Falls back to ETHERSCAN_KEY
EVMSCOPE_ETHPLORER_KEY	Ethplorer API key (token holders)	freekey
EVMSCOPE_LIFI_KEY	LI.FI API key (bridge routes)	Public access
EVMSCOPE_DEBUG	Enable debug logging (set to 1)	Disabled

Built-in Databases

Database	Contents
tokens.json	49 major tokens with multi-chain addresses and CoinGecko IDs
signatures.json	36 common function signatures (ERC-20, DEX, lending, NFT)
labels.json	30 labeled addresses (exchanges, bridges, whale wallets)
protocols.json	10 DeFi protocols with multi-chain contract addresses

Roadmap

• v0.1 (done) — 5 tools: price, transaction fees, balance, token info, ENS
• v0.5 (done) — +4 tools: decodeTx, getTxStatus, getContractABI, identifyAddress
• v1.0 (done) — +5 tools: compareGas, getApprovalStatus, getProtocolTVL, getWhaleMovements, getSwapQuote
• v1.5 (done) — +6 tools: simulateTx, getYieldRates, getTokenHolders, getContractEvents, checkHoneypot, getBridgeRoutes
• v1.5.1 (done) — Code quality + security refactoring: 7 new shared modules, per-chain RPC URLs, cache size limits, unified address validation, CLI modularization
• v1.6.0 (done) — +3 tools: getNFTInfo, getNFTMetadata, getGovernanceProposals. +2 chains: Avalanche, BSC
• v1.7.0 (done) — +3 tools: getBlockInfo, getTokenTransfers, getPortfolio. Security hardening (v1.6.1)

License

MIT