⛓️Crypto & Web3

Gas calculators, unit converters, staking math and chain data for the web3 ecosystem.

Ξ Wei / Gwei / ETH Converter

Convert between wei, kwei, mwei, gwei, microether, milliether and ether with exact BigInt arithmetic. Decimal strings of any magnitude convert without floating-point error.

Use tool →|GET /api/v1/crypto/wei-eth-converterx402 $0.002/call

⛽ Gas Fee Calculator

Calculate a transaction's gas fee: gas units × gas price (gwei) gives the ETH cost, multiplied by the ETH price for USD. Exact BigInt math for the wei amounts.

Use tool →|GET /api/v1/crypto/gas-fee-calculatorx402 $0.003/call

🪙 Crypto Price (Live)

Live cryptocurrency prices from CoinGecko's public API: current price in USD/EUR/GBP/JPY plus 24-hour change for any coin by id or common ticker (btc, eth, sol…). Cached 60 seconds.

Use tool →|GET /api/v1/crypto/pricex402 $0.005/call

Generate cryptographically secure randomness: passwords with charset rules, hex keys of any byte length, and uniform random integers (rejection sampling, no modulo bias). Never use Math.random for secrets.

Use tool →|GET /api/v1/crypto/random-generatorx402 $0.002/call

🔎 Wallet Snapshot (Live)

One-call on-chain profile of any Ethereum or Base wallet via Blockscout: native balance, transaction and transfer counts, activity recency, top token holdings, and most frequent recent counterparties — with fresh-wallet and high-volume flags. The 'who is this address?' conclusion, not raw RPC data.

Use tool →|GET /api/v1/crypto/wallet-snapshotx402 $0.010/call

🚀 New Pool Scanner

Scan newly created DEX pools on Solana, Base, Ethereum, BSC, Arbitrum or Polygon, filtered by minimum liquidity and maximum age. Each pool comes with liquidity (USD), 24h volume, FDV, buy/sell counts and automatic risk flags (too fresh, thin liquidity, sell pressure). Powered by GeckoTerminal's public API.

Use tool →|GET /api/v1/crypto/new-poolsx402 $0.005/call

🧾 Transaction Explainer

Explain what an EVM transaction would actually do: decodes the calldata (ERC-20 transfers/approvals via known ABIs, unknown selectors via the 4byte directory) and simulates the call against live chain state to report the outcome — including unlimited-approval warnings — without sending anything.