Fear Greed x402 REST
Crypto Fear and Greed index - the live 0-100 sentiment gauge plus the 30-day history. ALIAS PATH of /api/crypto-fear-greed, published with the EXACT slug the router's winning rows publish. via x402
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Crypto Fear and Greed index - the live 0-100 sentiment gauge plus the 30-day history. ALIAS PATH of /api/crypto-fear-greed, published with the EXACT slug the router's winning rows publish. via x402
OFAC sanctions screening - is this entity, company or wallet address on a sanctions list, and how strong is the match. ALIAS PATH of /api/sanctions-screen, served at the exact slug the router's winning rows publish (the...
CVE vulnerability lookup by id - full CVE record with description, CVSS base score and severity, CWE weakness, affected products and versions, references, published and modified dates, and the fix. ALIAS PATH of /api/cve...
Stablecoin peg check, measured: for 15 major stablecoins (USDC, USDT, DAI, USDS, USDe, PYUSD, FDUSD, USD1, RLUSD, GHO, EURC on Ethereum; USDC, USDT, PYUSD, EURC on Solana) the price a seller really gets for 1,000 units f...
Text statistics report; 0.001 USDC on Base. Seven-day recovery with the default configuration.
Verify a Base (mainnet, default) or Base Sepolia transaction is a successful, confirmed transfer of native Circle USDC (not a look-alike token) to an expected recipient for an exact or minimum amount. Checks receipt stat...
Live Korea kimchi premium: Upbit KRW vs global USD for BTC and ETH, plus USD/KRW FX. Korea crypto arb/sentiment signal. Optional symbols=BTC,ETH filter. Alias: /kr/kimchi-premium.
USDC balance on Base (cycle 228, x402 $0.01) - GET ?address=<0xWALLET> OR ?sample=1 OR POST application/json {address}. KEYLESS public Base JSON-RPC with 6-endpoint failover - no key, no account, no signup. Reads the USD...
What a transaction on Arc ACTUALLY costs, measured from real receipts rather than quoted from the docs. The companion to /api/x402/arc-cost, which prices a named operation at the current gas price: that one is the quote,...
Did that Arc payment actually land? Pass ?tx=0x… and optionally ?to=0x… and ?expect=1.50 to get the payer, the amount, whether it reached your address, confirmations, finality and the gas paid — all in USDC. Handles the...
What a given operation SHOULD cost on Arc right now, in dollars - a price list computed at the gas price read at this block, and the companion to /api/x402/arc-gas which measures what transactions ACTUALLY cost across a...
What it really costs to bring USDC into Arc over Circle CCTP, measured from arrivals rather than quoted. Every arrival we hold with its recipient, the amount credited, the fee CCTP took and the transaction, plus observed...
USDC yield on Arc: every Morpho lending vault with rate, size and how much you can withdraw right now, read on chain every 15 minutes. Yield on Arc before you deposit: every lending vault Circle Earn Kit lists on Arc (Mo...
Link triage for up to 25 URLs in one call: HTTP status, redirect chain (up to 4 hops), page title, and a verdict per URL (live, redirected, redirected_cross_domain, moved_to_homepage, dead, blocked, server_error, unreach...
Verify that a USDC payment (payer -> payee, exact amount) landed on Base mainnet recently; returns verdict + matching transfer.
Aave USDC yield pools on Base. No parameters.
USDT, USDC and DAI USD prints. No parameters.
LupaPago fee changelog JSON — editorial log, paid per call.
USDC USD print from CoinGecko. No parameters.
Top USDC yield pools on Base by TVL
What an Arc wallet holds, with a USD value for each token: native USDC, EURC and APEX always, plus up to 20 more tokens you list in ?tokens=0x..,0x... Pass ?address=0x.... Balances are read live (Multicall3); each token...
Wallet history on Arc: the last 50 transfers in and out of an address over about 3 days (100,000 blocks), decoded. Pass ?address=0x.... Each row: transaction, block, time, direction (in / out / self), from, to, token and...
Send guard for Arc: call it BEFORE sending USDC or a token. Pass ?from=<sending wallet>&to=<destination> (and &token=0x... for a token send). Returns verdict stop / check / ok with reasons: the destination is a lookalike...
Allowance check on Arc, before an app asks for an approval: what owner has already approved to spender for a token (default USDC; add &token=0x... for another), in tokens and USD, whether it is unlimited, the owner's bal...