Crypto & Blockchain

USD Coin

Audit an ERC-20 token on Base before you touch it: contract verification status, owner renounced or not, upgradeable proxy, holder count and top-holder concentration, malicious public tags, USD price, plus a sanctions check on the contract address itself. Returns a 0-100 risk score with named flags. Static + market-structure analysis from public data — zero-key, deterministic.

Screen a wallet address before you transact with it: sanctions check against the OFAC SDN digital-currency address list and UN consolidated list (refreshed daily, matched locally), plus free on-chain signals on Base — contract vs EOA, verification status, activity, balance, malicious public tags. Returns a 0-100 risk score with named flags. Built for x402 agents screening counterparties.

Top-N AI model recommendation for a task. Joins live pricing, benchmarks, provider status, and latency into a single composite score so an agent gets a ranked answer in one call instead of stitching three free endpoints together.

Token-level feature row for one Robinhood Chain token: launch facts, current activity/deployer/price/caller state, and the observed mention record — inputs for your own model (no score, no recommendation)

Crypto Fear & Greed index with yesterday comparison

Keyword gap analysis API - find the Google keywords a competitor ranks for that your domain does not, each with the competitor's ranking position and URL plus monthly search volume, CPC, competition, keyword difficulty and search intent. Surfaces content gaps and keyword opportunities for competitive SEO. Empty results if no gap.

Get a domain's backlink profile over time: a monthly timeseries of domain rank, total backlinks, new and lost backlinks, referring domains (new/lost/total), referring main domains, broken backlinks and crawled pages. For tracking link velocity and growth or a competitor's link building. Unknown domain returns found=false.

Base coin price mini-endpoint for major tokens only. Returns spot prices and 24h stats for well-known tickers like btc, solana, eth, xmr, ltc and other large-cap coins, never microcaps. Pass an optional ticker to get a single-coin 24h snapshot with price, symbol, changeRate, changePrice, high and low, or omit ticker to receive a compact basket of top tokens in a fixed order. Cost: 0.001 USDC per request.

IXS Real world asset vaults — 6% yields, BlackRock exposure, tokenized on-chain

Get real-time spot price and market data for a cryptocurrency

AI-generated English summary of a Korean DART disclosure

Japan Stablecoin Payment Monitor: weekly change feed for stablecoin payment services in Japan — new launches, pilots, partnerships, fee changes, supported assets and chains, and closures. Each event is dated, categorized and tied to an official source URL. Pass changedSince=YYYY-MM-DD (your last run date) to fetch only new events; an empty changes list explicitly means no change. Without changedSince you get the full dated history back to late 2025.

What a Base address holds: the ETH balance read from the chain, every ERC-20 with its balance, market price and USD value, and a USD total - spam tokens imitating real ones are flagged and left out of the total, unpriced tokens listed but not counted. Send {} for the paying wallet. Pay-per-call via x402. An empty body is answered for the wallet that pays (the payment's signer); send {"address":"0x…"} for any other address.

Live Polymarket markets: each outcome's price (the market's implied probability), 24h and total volume, liquidity, closing date and link. Search by topic (bitcoin, fed rates, election…) or send {} for the markets with the most 24h volume. A search with no open market is 404 and not charged. Pay-per-call via x402.

Wholesale day-ahead electricity prices in EUR/MWh per European bidding zone, from the Energy-Charts API (Fraunhofer ISE; data CC BY 4.0 from Bundesnetzagentur/SMARD). Query: ?bzn=DE-LU|FR|NL|ES|IT-NORTH|SE4... (44 zones), optional ISO window &start=2026-07-12&end=2026-07-13. Returns timestamped price points (15-min or hourly slots, max 288). 1h cache.

Latest euro area risk-free spot yields from the ECB Data Portal (dataset YC, AAA-rated central government bonds, Svensson model; updated each business day ~12:00 CET). Query: ?tenors=3M,1Y,2Y,5Y,10Y,30Y (1-8 tenors from 3M to 30Y). Returns yields_pct per tenor, observation date, and the 2s10s spread in bp when 2Y and 10Y are requested. 1h cache.

Real-time oracle prices from Pyth Network (Hermes API): aggregate price, confidence interval (uncertainty band), EMA price and publish_time per asset, all vs USD. Query: ?symbols=btc,eth,sol (1-8 of: btc, eth, sol, bnb, xrp, ada, avax, doge, link, dot, usdc, usdt). Cross-check against CEX spot to detect oracle/spot divergence. 30s cache.

Circulating supply per stablecoin from DeFiLlama with computed net flows (delta_24h/delta_7d/delta_30d = net mint minus burn), peg type, peg mechanism and current price. Query: ?symbol=USDT for one asset, or ?top=10 (1-50, default 10) for the largest by supply. Served with a 30min cache.

Returns a perpetual-futures decision package for BTC, ETH, SOL, XRP, or ADA: direction LONG / SHORT / FLAT from the Kronos signal, stop-loss and take-profit on the calibrated 80% range, a leverage cap that keeps liquidation outside 2x the stop, liquidation price, risk-based position size for your equity and max loss, and live perp funding cost over the horizon — turns a bearish signal into a sized short instead of staying out. No exchange execution; market intelligence only.

Wallet-addressed positions across Polymarket, Polymarket perps, and Hyperliquid, each prediction-market position joined to Quotient's forecast, signal, and a pricing read against the position's own side. Use this for wallet size, prices, PnL, and Q alignment. venues=all covers every venue; omitting venues keeps the legacy Polymarket-only shape. Kalshi and Polymarket US are absent only for lack of a keyless wallet read, with coverage available through the market API.

Email address deliverability and risk check before sending: syntax, domain, MX records, SPF, DMARC, disposable-provider detection and role-account detection. Returns a 0–100 deliverability score, risk level and per-check details. Live DNS, no mailbox pinging.

IXS Real world asset vaults — 6% yields, BlackRock exposure, tokenized on-chain

Current token prices from DefiLlama. Query: coins — a comma list of coin ids like coingecko:bitcoin or <chain>:<address> (up to 50). Each: price, symbol, timestamp, confidence. Prices move — poll it.