Crypto & Blockchain

Returns active prediction markets from Limitless Exchange with current Yes/No probabilities. Covers short-duration crypto markets (5-min, 15-min BTC/ETH direction), plus longer-term markets. Returns title, implied yes/no prices, expiration, volume, categories, and slug. $0.006/call — free upstream, no API key.

Returns Ethereum block header + stablecoin depeg status + top DeFi yield farming pools in one call. Collapses the 3-hop eth-block → stablecoin-watch → yield-farming chain into a single call. All three upstreams fetched in parallel. Supports Ethereum, Base, Polygon, Arbitrum. Filter yield pools by chain, protocol, min TVL, min APY. Free upstreams — DRPC + DeFiLlama — no API key required.

Returns an Ethereum block header + current stablecoin depeg status in one call. Collapses the eth-block → stablecoin-watch 2-hop chain. Block fields: number, hash, miner, timestamp, gas_used, tx_count. Stablecoin fields: symbol, price, peg_deviation, depeg_status, composite alert level. Supports Ethereum, Base, Polygon, Arbitrum. Free upstreams (DRPC + DeFiLlama), no API key required.

US equity snapshot + Limitless prediction market sentiment in one call. Returns current price, intraday change, volume, 52-week range for any NYSE/NASDAQ ticker, plus any active Limitless prediction markets matching the ticker keyword (direction bets, price level markets). Single-call alternative to separate limitless-markets + us-stock-price calls. Free upstream — no API key required. $0.015/call.

AI-synthesized US housing market briefing. Fetches 8 FRED signals (starts, permits, existing/new sales, months supply, 30Y mortgage rate, Case-Shiller HPI, median price) and uses gpt-4o-mini to produce market phase, direction, supply posture, affordability regime, 150-word narrative, dominant risk, and agent implication. One call collapses 8 FRED lookups + LLM synthesis for REIT analysis, mortgage exposure, consumer wealth, and macro housing drag.

Latest cryptocurrency news headlines from CoinDesk with live price correlation for mentioned assets. Returns up to 10 recent articles — each with title, URL, published timestamp, primary category, and a keyword-derived sentiment signal (bullish/bearish/neutral). For each article, identified crypto assets (BTC, ETH, SOL, etc.) are enriched with current USD price and 24h price change. Use before any crypto research, portfolio review, or market sentiment task to understand what news is driving the

Top holdings, sector weights, and asset allocation for any US ETF (SPY, VOO, QQQ, AGG, XLK, etc.). Returns up to 25 positions with weights, sector breakdown, and equity/bond/cash split. No API key. $0.018/call.

Base chain season snapshot: total chain TVL, top 10 protocols by Base-native TVL, category breakdown, 7d trend, and top Base ecosystem tokens by market cap. No input required — agents use this for pre-trade orientation before DeFi, lending, or liquidity calls on Base.

Periodic transaction report tracker for the US House: each entry is one filing event — member, district, date, document id, PDF link — so an agent can poll for fresh trade disclosures and fetch parsed rows from the companion trades endpoint. Covers all filing types with a code legend in every response.

Live ticker statistics including mention counts, velocity (mentions/minute), acceleration, and lifecycle stage classification.

Scan any EVM wallet address or ENS name for on-chain risk signals using Web3 Antivirus. Returns a toxic score, risk level, and the specific risk categories that triggered a flag. Designed for off-ramp compliance: use shouldFlag to block or escalate — any non-zero toxic score means the wallet has been flagged for at least one risk category such as sanctions, scams, mixers, or phishing.

Signed ECDSA attestation of on-chain wallet conditions across 38 chains: token balance, NFT ownership, EAS, Farcaster, view calls, ratio rules, and agent standing (ERC-8004 registration, ERC-7710 delegation validity with revocation proof). A verifiable boolean, never raw balances. Up to 10 conditions per pay-per-call request.

League intelligence — standings, scorers, over/under and BTTS rates, home/away splits and betting angles for any major league. For football betting and fantasy agents.

Crypto market tick — BTC, ETH, SOL live price + 24h change, Fear & Greed index, and a deterministic regime verdict (RISK_ON / DRIFT_UP / CHOP / DRIFT_DOWN / RISK_OFF) in ONE $0.05 call. Built for agent loops that need a cheap market pulse every cycle; escalate to /api/scan/crypto ($2) for the institutional deep scan with technicals, derivatives and a directional call. 60s freshness, no LLM in the path.

Real-time directional sentiment for any forex pair or gold — retail crowd positioning, COT institutional alignment, and a clear contrarian bias call. Built for FX trading and advisor agents.

Prediction market cross-venue arbitrage — matches live Polymarket contracts to Kalshi contracts for the same events: both leg strategies, gross cost, Kalshi taker fee, net edge per contract, ARB_CANDIDATE / CONVERGENCE_GAP / ALIGNED verdicts. Optional ?query= topic filter. Deterministic order-book math, no LLM.

Crypto market context for macro and multi-asset agents — BTC, ETH and majors with the Fear and Greed read and the risk-on/risk-off signal that ties crypto to broader macro flows.

Cross-venue funding-arbitrage scan, deterministic. Answers "where is the biggest funding spread right now", "which coin pays me to be delta-neutral". For every liquid Hyperliquid perp: predicted funding across venues normalized by each venue payment interval to a comparable 24h rate, ranked by the widest venue spread, with the direction (long low / short high venue), annualized capture, and open-interest context. No LLM, keyless public data.

Plain-English decoder for onchain finance, blockchain and regulatory terminology. For research and financial agents.

Crypto market context for macro and multi-asset agents — BTC, ETH and majors with the Fear and Greed read and the risk-on/risk-off signal that ties crypto to broader macro flows.

Real-time guaranteed-profit racing arbitrage across all bookmakers. For betting and arbitrage agents.

Plain-English decoder for onchain finance, blockchain and regulatory terminology. For research and financial agents.

Real-time directional sentiment for any forex pair or gold — retail crowd positioning, COT institutional alignment, and a clear contrarian bias call. Built for FX trading and advisor agents.

AI inference price arbitrage — every provider serving a given model with live input/output $/Mtoken, blended 3:1 cost, cheapest-vs-dearest spread multiple, quantization caveats. Same open-weights model spans 2-5x across providers; for agents that buy inference this is self-referential spend recovery. Live listings, no LLM.