Crypto & Blockchain

Polygon gas price — current transaction fee for Polygon PoS network — Ed25519 signed attestation

Base L2 gas price — current transaction fee for Coinbase Base network in Gwei — Ed25519 signed attestation

Live prices from TWO labeled venues per symbol: Coinbase exchange spot (+ 24h stats) AND the gTrade venue leg { gains: { pairIndex, mark, index } } — mark is what fills on Gains, index is the oracle spot liquidations use. Same feeds the human chart runs on; the cross-venue spread between them is real, tradeable divergence (lead/lag arbitrage). Covers Gains-listed symbols Coinbase lacks (e.g. Full details: GET /v1.

The tradeable Gains Network (gTrade) crypto pair universe on Base: on-chain pairIndex, symbol, and the FULL leverage band per pair- maxLeverage, minLeverage (10x on forex, 2x on metals; below it the contract reverts), and openable, which is false for the ~300 listings the venue currently refuses to open at any size. USDC-collateralized synthetic exposure- any pair trades without holding the asset. GET /v1/risk/pairs.

Every listed Morpho Blue market on Base: marketId, full MarketParams (loanToken, collateralToken, oracle, irm, lltv- the id is re-derived and asserted, wrong-market proof), live borrow APY, and LLTV. The input universe for /v1/tx/loan. GET /v1/loan/markets.

Indicative Base mainnet swap pricing via the Coinbase CDP Trade API- expected output, min output after slippage, and fee estimates- WITHOUT reserving liquidity. Poll this to compare routes, then buy /v1/tx/swap for the executable quote. GET /v1/swap/price?fromToken=0x..&toToken=0x..&fromAmount=atomic&taker=0x..&slippageBps=100.

OHLC history with window extremes (highest high / lowest low over the window). Crypto via Coinbase (GET /v1/candles?product=ETH-USD&days=30; hourly bars <= 7d, six-hour <= 31d, daily <= 350d). Metals / indices / forex / stocks via ?sym=XAU&cls=Commodities[&quote=USD]. Returns { productId, days, high, low, candles, series: [[startSec, open, high, low, close], ...] } oldest first. Full details: GET /v1.

Recommended Bitcoin transaction fee rates in sat/vB (fastest, half-hour, hour, economy, minimum) from mempool.space, computed from the live mempool. Optional ?include=difficulty adds the current difficulty retarget estimate (change %, remaining blocks/time). No required params; served with a 60s cache.

Live long/short account ratio for any crypto from OKX with history and crowding bias - real-time sentiment positioning data not in any LLM training set. long short ratio, long short, trader positioning, crowded trade, sentiment ratio

Live gas oracle with slow, standard and fast fee tiers computed from recent block fee history - current base fee plus recommended priority fees and the cost of a standard transfer, so agents can set the right gas price and decide when to submit transactions. gas oracle, gas price, recommended gas, gas fee tiers, optimal gas, priority fee, gas estimate, when to transact

Inspect an ERC20 token contract for buy/sell tax fields, owner renouncement and basic honeypot risk flags on EVM chains. token tax, honeypot check, buy sell tax, meme coin safety, rug risk flags, rugpull detection, token audit, contract safety check

Detect honeypots, rug-pulls and malicious tokens before buying or approving. Combines GoPlus token-security (honeypot simulation, buy/sell tax, mintable, pausable, hidden owner, LP concentration, holder count) with bytecode analysis and owner-renounce checks into a safe/caution/risky/rug_pull verdict. Use it for token security, rug-pull detection and smart-contract risk. Ed25519-signed. 0.02 USDC on Base.

Continuous smart-contract monitoring and change detection. Instead of re-buying the same one-off verdict every day, this watch returns the CURRENT security verdict PLUS exactly what changed since the last time this contract was checked: owner changed or ownership taken back, proxy implementation/beacon upgraded (logic swap), proxy-admin changed, verification (Sourcify) gained or lost, honeypot or buy/sell tax flip, new dangerous functions (mintable, pausable, blacklist, selfdestruct, hidden owner), trust-list on/off, and verdict escalation. Use it for continuous contract monitoring, upgrade/rug watch, security drift detection and change alerts. Built on the same on-chain engine (web3 proxy/owner reads + Sourcify + GoPlus token & address security). Ed25519-signed. 0.02 USDC on Base.

Crypto perpetual-futures funding-rate scanner — the top funding rates ranked across ~100 Binance perp markets (rate, 8h %, who-pays-who direction, mark price, next funding time). Spot funding arbitrage and crowded positioning in one call.

Market state synopsis — 15-signal snapshot: all 4 indices, funding, OI, liq flow, price, VWAP, basis, econ calendar. 60s cache. Ed25519 signed. — Ed25519 signed attestation

Find guaranteed-profit basket arbitrage in prediction markets by aggregating all NO outcomes. When the total cost of buying every NO contract is less than the guaranteed payout, the yield is risk-free.

Get top crypto asset mindshare losers over the last 7 days.

Portfolio-level risk analysis: get comprehensive signals and narratives for up to 10 crypto entities in a single call. Returns full evidence across all 28 signal types per entity — insider flows, DeFi risk, governance, token unlocks, and cross-domain convergence. Ideal for portfolio monitoring, due diligence, and institutional risk assessment | ZWING Intelligence (https://zwing.finance) — contact: v@zwing.finance, Telegram: @valery_zzz

Trading and dispatch agents buy this endpoint to obtain the current German EPEX spot price for immediate decisions.

Direct wallet sanctions exposure check on Base. Screens a wallet and a bounded set of recent transfer counterparties, with evidence, coverage, and explicit limitations.

OFAC / FATF / JFSA sanctions screening for any blockchain address. Returns hit list with sanction list source, designation date, and program code.

Per-symbol HOLD-STATE read — is the published trend state behind a name intact? GET /api/board/hold?sym=NVDA (up to 10, comma-separated, one price) returns each name's state, hold strength 0-100, readiness, maturity-late flag, overnight gap-risk grade and its book's regime, with the mechanical rules states flip on. BTC-USD/ETH-USD return the crypto book's IN|CASH daily-close state. Impersonal publication — never your entry or size. ~5-min refresh in market hours. Research, not advice.

Market regime classifier for trading agents — is the tape risk-on or risk-off right now? Returns a regime verdict per book (S&P 500, Nasdaq-100, macro, crypto): trade, be selective, or stand down — with the market-state mode, which sectors are green, and the top-down permission ladder (index → sector → name) saying whether individual names are enterable at all. Refreshed ~5 min in market hours, timestamped. Research, not advice.

Bitcoin and Ethereum trend signal — is crypto risk-on right now? One read returns the long-only trend state for BTC and ETH (LONG or CASH per sleeve), each sleeve's 50-day trend gate, and the BTC 200-day master gate that overrides both — all evaluated strictly on UTC daily closes, with live price and day change. A rules-based regime verdict for agents, not raw price data. Long-only: the answer is in or out, never short. Research, not advice.