314 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.
Decode calldata. Decode EVM transaction calldata into the function and its arguments with viem: give the function signature (transfer(address,uint256)), or leave it out to try common ERC-20, ERC-721, ERC-1155, WETH, perm...
Ethereum block by number or latest - hash, time, transaction count, gas used, base fee and miner
Resolve an ENS name to an address, or reverse-resolve an address to its primary ENS name. Independently monitored by x402-list.com: 100% uptime since Oct 27, 2026, 14/14 x402 compliance checks (as of Oct 31, 2026). Evide...
Base RPC (chain 8453): JSON-RPC over HTTPS on NodeFlare's own bare-metal nodes. Pay per request in USDC, no account or API key - built for AI agents. All methods including eth_getLogs, eth_call, trace, and debug (archive...
BTC, ETH and USDT dominance as a share of total crypto market cap — the regime filter to check before sizing any altcoin position. Rising BTC dominance means capital rotating to relative safety; rising USDT dominance mea...
Large ETH transfers (>100 ETH) to and from known exchange wallets in the last 2 hours. Inflows to exchanges are potential distribution pressure, outflows suggest accumulation or a move to cold storage — but read them as...
Ethereum address activity: ETH balance plus recent large transfers in and out. Point it at an exchange wallet, a treasury or a wallet a headline just named, and get the movement behind the story rather than the story.
Use when: what did this Ethereum transaction do? Explain a Ethereum transaction: status, fee, decoded method + args (openchain signature DB), and ERC-20 transfers with symbols and human amounts.
Trending token pools right now on Solana, or any supported chain via chain= - price, liquidity, 24h volume, price change and pool age
Current gas price and EIP-1559 fee estimate for a chain (base, ethereum, polygon, arbitrum, optimism) Independently monitored by x402-list.com: 100% uptime since Oct 27, 2026, 14/14 x402 compliance checks (as of Oct 31,...
Native and (optional) ERC-20 token balance for a wallet address across major EVM chains (base, ethereum, polygon, arbitrum, optimism) Independently monitored by x402-list.com: 100% uptime since Oct 27, 2026, 14/14 x402 c...
Token Risk Report: AI verdict on a Ethereum mainnet token contract -- grade, red flags, on-chain facts. Not financial advice. Returns: an AI-written token verdict on one token contract: grade (BASED/MID/COOKED/RADIOACTIV...
Whale and large-trade tracker for an ERC-20 on Ethereum: every buy and sell in the last N minutes on the token's deepest WETH/USDC pools (Uniswap v3), with USD size, side, wallet and transaction for the largest trades, b...
Resolve an ENS name to an address, or reverse-resolve an address to its primary ENS name
Current EIP-1559 gas fees for Ethereum, Base, Arbitrum, Optimism or Polygon: next base fee, slow/standard/fast priority and max fee in gwei, block utilisation and the cost of a plain transfer (L2 L1-data fees excluded)....
Token Supply Lookup: total supply of any ERC-20 on Ethereum mainnet. Total supply of an ERC-20 token contract on Ethereum via totalSupply given token address.
NFT Owner Lookup: Ethereum mainnet ERC-721 owner of any token ID. Lists the NFT token ids an address holds in one ERC-721 collection on Ethereum mainnet, read from chain state at the latest block.
Foreign exchange reference rates from the European Central Bank. Base currency plus optional symbols filter. Updated daily on ECB schedule. JSON response. $0.002 USDC per call, pay via x402, no API key.
Use when an agent must see who an EVM wallet deals with: counterparties ranked by ERC-20 transfers, earliest inbound sender, wallets the same EOA funder also paid, tokens moved. Input: address, chain (base default, ether...
Solana flow and income check: rebuilds SOL or SPL token payments into and out of a wallet or treasury from its latest transactions, groups them by payer and recipient (wallets vs program accounts such as pools and fee va...
Ethereum: Top 50 holders of a token with share of supply, balances, contract/exchange labels, burned share and concentration (top 1/5/10/20). Spot whale-controlled and insider-heavy tokens. $0.03 per call.
Ethereum: Wallet portfolio: native balance plus every ERC-20 holding with USD price and value, total net worth, NFT collection count. $0.03 per call.
Historical crypto prices: daily USD price series for one coin by CoinGecko id (bitcoin, ethereum, solana, ripple for XRP and more), from 1 to 730 days back via ?days=. Use for charts, returns, volatility, drawdown, movin...
Token Balance Check: ERC-20 balance of any wallet address on Ethereum mainnet. Ethereum mainnet ERC-20 balanceOf. Takes query parameters token (ERC-20 contract, 0x + 40 hex) and address (holder, 0x + 40 hex). Returns the...