307 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.
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...
Payment verification on Ethereum, Base, Arc or BNB Chain: did this transaction really pay this address? Pass ?hash=&to= (and optionally &token=&min=) and get every ERC20 transfer that reached the address, the totals per...
The seller's playbook for a live x402 endpoint: the exact 402 challenge to serve (v2 header and v1 body in one response), what the facilitator /verify really checks and the balance rule that rejects a valid signature, ho...
Detect language, formality and tone of a text with confidence scores. Deterministic heuristics + compact wordlists. Returns iso_639-1 + register. — $0.001 USDC/call on eip155:8453. Pay-per-call via x402 — no API key, no...