Crypto & Blockchain

Daily ECB reference exchange rate time series between two currencies over a date range via Frankfurter, no key. For AI agents backtesting FX, computing volatility, and charting currency trends.

Batch wallet intelligence for AI agents. Screens multiple EVM wallets in one paid call and returns structured balance, token exposure, NFT activity, transaction activity, confidence context, and recommended next actions for wallet triage workflows.

The level-2 order book for one perpetual-futures market: aggregated bid and ask price levels, each with size and the number of resting orders, as of the book timestamp. Pass the coin in the path (e.g. BTC). Use to gauge liquidity, spread, and depth. Free on-chain DEX data (venue: Hyperliquid), no key. From x402stock, a market & economic data API (x402, USDC).

Browse every prediction market Quotient tracks across Polymarket International, Polymarket US, Kalshi, and Limitless, with venue odds, available volume, resolution date, and forecast recency. Use this to discover covered event markets or exact linked oil, gold, silver, platinum, natural-gas, BTC, and ETH topics. Filter by venue or topic; the complete covered catalog returns in one response.

Retrieves information or status for a specific blockchain agent identified by its wallet address.

Ranked, interpreted period-over-period metric changes for a country, cryptocurrency, or stock; ?material_only=true filters to significant moves.

Cheapest entry point: the latest cached analyst signal for one asset — sentiment %, stance, divergence flag, narrative — with an age timestamp (?asset=BTC). Cached-only, no freshness guarantee: for a guaranteed-fresh read use /v1/consensus.

Recent whale movements, CEX flows, bridge activity, and stablecoin mints/burns

Current national-average US fuel prices from FuelEconomy.gov: regular, midgrade, premium, diesel, E85, CNG, LPG, electricity. Keyless US EPA/DOE source. For agents estimating fuel costs.

Retrieves content from a distributed file system using a content identifier hash.

Fetch a URL and return context already fitted to your token budget, with token counts and an omission manifest.

Returns current market risk state, per-symbol signal streaks, and active cooldown timers — use it as a pre-trade risk gate before acting on any signal.

Theses written by one FOMO trader, newest first. {id} is the stable user id (User.id / authorId), not a handle — resolve handle→id first if needed. Page with ?before= from nextBefore. Use the /token/{tokenAddress} sibling when you also know the token.

Live on-chain spot market for one Hyperliquid-listed token by symbol (e.g. HYPE, PURR) or @index: mid/mark price, previous-day price, 24h USD and base volume, circulating and total supply, and market cap, quoted in USDC. Spot, not a perp — for funding/open interest use /api/v1/perps/{coin}; for major-coin fiat prices use /api/v1/crypto. From x402stock, a market & economic data API (x402, USDC).

Historical OHLCV candles for one Hyperliquid spot market at the requested interval (1m, 5m, 15m, 1h, 4h, 1d, 1w) over a time window. Pass a token symbol (e.g. HYPE, PURR) or @index and tune with `?interval=` (default 1h), `?lookback=` candles (default 200, max 5000), or `?start=`/`?end=` epoch-ms. Spot candles — for perp candles use /api/v1/perps/candles/{coin}. From x402stock

Historical OHLCV bars for a foreign-exchange pair at the requested multiplier and timespan (minute, hour, day, week, month) between `from` and `to`. Pass the pair in the path as BASE-QUOTE, e.g. EUR-USD or USD-JPY. Use for FX charting, backtesting, and macro/rate analysis. From x402stock, a pay-per-call market & economic data API for AI agents. No API key or account; pay in USDC via x402.

Structured onchain wallet audit for AI agents. Returns wallet activity, token/NFT exposure, recent flows, counterparties, conservative risk context, confidence context, and investigation-ready next actions for chained research workflows across supported EVM chains.

Open, high, low, close, volume, and VWAP for a foreign-exchange pair's most recent completed trading day. Pass the pair in the path as BASE-QUOTE, e.g. EUR-USD. One call returns one bar for a quick prior-close reference. From x402stock, a pay-per-call market & economic data API for AI agents. No API key or account; pay in USDC via x402.

The news and X/Twitter evidence behind Quotient's prediction-market forecasts: recent articles and market-relevant posts for up to ten markets, in published order, each with a relevance score, reasoning, evidence quote, source tier, and author. Use this to see what is actually moving the odds on geopolitics, elections, macro, and policy markets, to audit a forecast, or to build a news feed filtered to tradable events.

Current Base L2 gas prices (fast/standard/slow) from the public Base RPC, cached 10s. Returns wei + gwei. Lowest-latency option for gas bots. — $0.001 USDC/call on eip155:8453. Pay-per-call via x402 — no API key, no account. Free samples daily.

Backtests a simple rule on a US stock and returns a finished report PNG. Runs an SMA crossover (?strategy=sma_cross&fast=50&slow=200) or RSI mean-reversion (?strategy=rsi_reversion&period=14&lower=30&upper=70) over daily history (?years=, max 5), no lookahead, rendered as an equity curve vs buy & hold. Returns full stats plus a hosted `artifact.png_url`. From x402stock

Rank blockchains by total DeFi value locked (TVL) across all protocols

Rich market data for one or more cryptocurrencies: rank, 24h high/low, volume, ATH, and more

A full AI-synthesized equity-research memo for one US stock in one call. Fans out across profile, fundamentals, technicals, short interest, insider activity (Form 4/144), 13D/G stakes, 8-K events, news and sentiment, then an LLM distils a balanced bull/bear case, valuation context, catalysts, risks and a per-signal read-out with an overall stance. Factual synthesis, not advice. From x402stock