crypto-verify x402 REST usage
Verify an EIP-191 personal_sign or EIP-712 typed-data signature and recover the signer address from public inputs (message + signature). Verification/recovery only — never signs.
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Verify an EIP-191 personal_sign or EIP-712 typed-data signature and recover the signer address from public inputs (message + signature). Verification/recovery only — never signs.
Crypto token price in USD for AI agents: give a token contract address or mint (or "SOL") on Base, Ethereum or Solana, get its live USD price read on-chain from the deepest DEX pool (Uniswap v3, Orca Whirlpools), not fro...
Reverse-lookup an Ethereum address to its Farcaster account (via verified address). Returns FID, username, display name, bio, follower/following counts, and Warpcast URL, or found=false if the address has not verified on...
Kalshi's own minute-resolution city temperature index (Fahrenheit), the series its hourly temperature markets settle on, computed from weighted member stations. Ask for a trailing window (lastSec, default one hour, max 7...
Crypto price in any ECB currency (EUR, GBP, JPY, CHF...): on-chain USD price (Chainlink or Uniswap v3) converted with ECB reference rates.
Crypto price history: give an asset like ETH, BTC or SOL and up to 365 days, get past USD prices from Chainlink's on-chain feed with times, plus first, last, high, low and change.
Return one current Coinbase spot-product snapshot for an exact BASE-QUOTE product id, including venue price, 24-hour price change and provider-reported 24-hour product volume. Forest reads only Coinbase Advanced Trade pu...
real-time cryptocurrency price snapshot with usd prices from the ftso yggdrassil value provider
Stablecoin market data ranked by USD-equivalent circulating supply: each coin returns its symbol, peg type and mechanism (fiat-backed, crypto-backed, algorithmic), peg currency (USD, EUR, JPY…), current peg price, native...
Full Hyperliquid funding extremes (carry-cost leaderboard)
Token verdict / rug check: an A-F safety grade, a one-line verdict and a plain-language take on any token on Base, Ethereum, BSC, Arbitrum, Optimism, Polygon, Avalanche or Solana, with a shareable page and card image. Bu...
Daily history of the crypto Fear & Greed Index (0 extreme fear, 100 extreme greed): average, max, min, days in each zone and trend, with the series. Alternative.me data.
Convert an amount between the main cryptocurrencies and ECB currencies (0.5 BTC to ETH, 100 USDT to EUR, 1000 EUR to SOL) with alternative.me prices (~190 largest coins) and ECB reference rates.
Trade result: gross and net profit or loss after entry/exit fees and funding, return on margin, price change, break-even price and notional. Long or short, with leverage.
Staking rewards: final amount, total rewards and average per day and month, with daily compounding or simple, after validator commission, in tokens and optionally in USD.
Current price of a list of cryptocurrencies by ticker (BTC, ETH, SOL...) or chain:contract, in USD or any ECB currency (EUR, GBP, JPY...). The simplest way to get prices.
Inspect any Ethereum address: EOA vs contract vs EIP-7702 delegated, ETH balance, nonce, proxy implementation (EIP-1967/1167/zos), and ERC-20 name/symbol/decimals/supply.
Check a Ethereum wallet's ERC-20 approvals: allowances for 8 major tokens (USDC, USDT, WETH, DAI...) to common spenders (Permit2, Uniswap Universal Router v4, Uniswap Universal Router, Uniswap SwapRouter02...); flags unl...
Check a crypto address (BTC, ETH/EVM, TRON, LTC, XMR, SOL and more) against OFAC SDN digital currency addresses. Returns listed true/false and the sanctioned entity.
Crypto address risk check API (pre-payment counterparty screening). Pre-payment counterparty check for agents: before paying or approving an EVM (Base, Ethereum, Polygon, Arbitrum) or Solana address, get ok / caution / b...
Token safety checker API for Base (honeypot and rug check). Base ERC-20 token safety verdict: SAFE / CAUTION / DANGER, score 0-100 and the reasons, from a simulated buy-transfer-sell on the token's own pool (honeypot and...
Run a low-cost token security audit and honeypot check using current automated GoPlus risk fields for a supported EVM contract. These third-party signals are not a guarantee of safety.
Risk check for an EVM contract/token address
Complete crypto market snapshot in one call — block height, TVL, 24h volume, DEX pool prices and the full token registry; market overview API. Deterministic on-chain execution by the AmanChain node — live consensus state...