io.github.EzeAlfaro/legible-check

Crypto price and token price in USD with 24h change and market cap for one or more CoinGecko ids (bitcoin, ethereum, solana, ...). Use it when an agent needs a current price before quoting or sizing a trade. Price: 0.001 USDC per call over x402 on Base or Solana.

DEX quote and liquidity: live pair quotes for a token or pair query, with price in USD, liquidity and 24h volume across chains. Use it to compare venues before a swap. Price: 0.002 USDC per call over x402 on Base or Solana.

Wallet balance on Base: the native ETH balance for any address, in wei and ETH, with the block height it was read at. Use it to read a wallet balance. Price: 0.002 USDC per call over x402 on Base or Solana.

Block number on Base: the latest block height, timestamp, age, base fee, gas used and transaction count. Use it when an agent needs the current block number or the chain head. Price: 0.001 USDC per call over x402 on Base or Solana.

Contract check and ABI for an address on Base: whether it is a contract, its bytecode size, whether Sourcify verified it, and the ABI when available. Price: 0.003 USDC per call over x402 on Base or Solana.

Decode an EVM transaction: given a transaction hash, or raw calldata plus a contract address, return the function selector, every known signature for it and the decoded static arguments. Use it to explain what a transaction does before signing or reporting it. Price: 0.003 USDC per call over x402 on Base or Solana.

Gas price on Base in gwei, split into base fee and priority fee, with the block it was read at. Use it to estimate gas fees before sending a transaction. Price: 0.001 USDC per call over x402 on Base or Solana.

Wallet nonce on Base: the next transaction nonce for any address. Use it to build a transaction without racing the mempool. Price: 0.002 USDC per call over x402 on Base or Solana.

Portfolio for a wallet on Base, Polygon or Arbitrum in one call: native balance, nonce and the balance of up to ten ERC20 tokens with symbol and decimals. Use it when an agent needs a full wallet snapshot instead of many calls. Price: 0.005 USDC per call over x402 on Base or Solana.

Transaction receipt on Base: success or reverted, block, gas used, effective gas price, log count and created contract. Use it to confirm a transaction or read its status. Price: 0.002 USDC per call over x402 on Base or Solana.

Recipient pre-flight check before transfers or payouts: verifies whether an address is an EOA or contract, code size, tx count, native balance, and detects burn/zero addresses. Use it to prevent burning funds. Price: 0.002 USDC per call over x402 on Base or Solana.

Token balance on Base: the ERC20 balance of an address, with raw units, decimals and the token symbol resolved on-chain. Use it to read a token balance. Price: 0.003 USDC per call over x402 on Base or Solana.

Token metadata for an ERC20 contract on Base: name, symbol, decimals and total supply. Use it before formatting any token amount or price. Price: 0.002 USDC per call over x402 on Base or Solana.

ERC20 transfers on Base for an address over the last N blocks (default 5000), newest first, with tx hashes. Use it to list incoming token transfers. Price: 0.003 USDC per call over x402 on Base or Solana.

Transaction lookup on Base by hash: decoded from, to, value, nonce, gas and max fee, and whether it is mined or pending. Use it to inspect any transaction. Price: 0.002 USDC per call over x402 on Base or Solana.

Transaction status on Base: success, reverted or pending for a given transaction hash, with block number, confirmations and gas used. Use it to check whether a transfer confirmed. Price: 0.001 USDC per call over x402 on Base or Solana.

The exact `price:` header line for every hashn listing of one workspace that falls outside the forest, ready to paste, with hashn's reason and the market median behind each amount. Price: 0.02 USDC per call over x402 on Base or Solana.

Live pulse of the hashn store forest: how many listings state a price a stranger can act on, how many fall outside, and which owners are losing the forest. Free, no payment, no account.

Quantitative trading risk and liquidation calculator for perp/margin DEX agents: calculates exact liquidation price, stop-loss price, margin buffer and risk rating for long or short positions with fee and maintenance margin awareness. Price: 0.001 USDC per call over x402 on Base or Solana.

Portfolio risk report for treasuries and large wallets: up to 25 tokens checked in one call, with balance, USD value, a verdict per position, value held in flagged tokens and the largest concentration. Pass the wallet and its tokens. A failed read is not charged. Price: 1.000 USDC per call over x402 on Base or Solana.

Token verdict before you buy, hold or accept a token: an A-F grade and a plain-language summary, with every signal behind it (mint, pause, blacklist and fee powers, upgradeable proxy, owner, DEX liquidity, market age, volume) and a list of what was not checked. Send back the fingerprint as since to learn whether anything changed. Base, Polygon, Arbitrum or Celo. Price: 0.020 USDC per call over x402 on Base or Solana.

Security check of a web app built with AI: exposed secrets in the browser bundle, Supabase tables readable without login, open Firebase databases, published .env or .git files, and missing headers. Each finding has a fix. The app owner must publish a verification token first; get it with POST /app-check/token. An unverified app is not charged. Price: 0.250 USDC per call over x402 on Base or Solana.

Live x402 ecosystem intelligence feed in one zero-parameter call: top verified stable sellers from 17,000+ tracked endpoints, flagged bait-and-switch origins (wallet or price swaps), recent change alerts, and current Base gas. Price: 0.010 USDC per call over x402 on Base or Solana.

History of an x402 seller before your agent pays it: how long the resource has been tracked, whether its recipient wallet or price changed, and how often it answers. A change of recipient is the signal to stop and look. Untracked resources are not charged. Price: 0.010 USDC per call over x402 on Base or Solana.