A single Kalshi market by ticker. Returns yes/no bid+ask and last price (dollars, implied probability), volume, liquidity, open interest, open/close times, and settled result. Read-only (no Kalshi key needed).

Top holders of a Polymarket market, grouped by outcome token (conditionId). Each holder: wallet, trader name, position size, outcome index, and verified flag. Reveals concentration and smart-money positioning per outcome — the holder-side complement to predict.trades (flow) and predict.whales (large trades). Read-only from Polymarket's Data API.

OHLCV candlesticks for a DEX pool (via GeckoTerminal, free/keyless). Pass network + pool address + timeframe (day/hour/minute) with optional aggregate (e.g. 4 = 4-hour) and limit. Returns time/open/high/low/close/volumeUsd bars for on-chain technical analysis. Pair with crypto.dex-pools / dex-token-pools to find a pool address.

A single Polymarket market by conditionId, slug, or id. Returns the question, outcomes + live prices (implied probabilities), CLOB token ids, USD volume + liquidity, dates, description, and URL. Pass one of conditionId / slug / id.

Unspent transaction outputs (UTXOs) for a Bitcoin address (free/keyless): each with txid, output index, value (sats + BTC), confirmation status, and block height. Sorted largest-first. For coin selection, balance verification, and wallet tooling.

Monthly Treasury Statement (MTS) — Table 4: receipts by source via US Treasury Fiscal Data. Returns monthly totals of federal government receipts grouped by classification (individual income tax, corporate income tax, social-insurance receipts, excise, customs, estate-and-gift, miscellaneous). Each row carries record_date, classification_id, classification_desc, current_month + current_fytd (fiscal year-to-date) gross_rcpt / refund / net_rcpt amounts, plus prior_fytd comparisons. Backbone of any "how much money is the federal government bringing in" question. Use Fiscal Data filter syntax.

Recent Polymarket trades. Filter by market (conditionId) and/or user (wallet address); page with limit (max 500). Each trade returns wallet, trader name, side (buy/sell), outcome, size, price, USD notional, timestamp, market title, and tx hash. Read-only from Polymarket's Data API.

Corporate ownership graph for a legal entity by LEI (GLEIF Level-2 relationships, live). Returns the direct parent and ultimate parent (each: LEI, legal name, jurisdiction, country, status), the direct children (paged), and total counts of direct and ultimate children. The authoritative 'who owns whom' lookup for KYB, beneficial-ownership, and corporate-tree mapping — complements business.lei (entity reference) and business.lei-isins.

ISIN ↔ LEI mapping (GLEIF, live, CC0). Two modes: pass lei to list every ISIN (security identifier) issued by that entity; or pass isin to resolve the issuer's LEI (with legal name, jurisdiction, country). Bridges securities to their legal-entity issuers for finance, compliance, and reference-data joins — complements business.lei and business.lei-hierarchy.

Search on-chain DEX liquidity pools by token name, symbol, or address (via GeckoTerminal, free/keyless). Optionally scope to one network. Returns matching pools with pair name, USD price, FDV, market cap, reserve, 24h volume + price change, and buys/sells — the fast way to find the right pool/token before pulling OHLCV or token info.

Scheduled flights between two airports over a date window (FlightAware AeroAPI). Pass origin and destination (ICAO or IATA) plus startDate/endDate; returns scheduled flights with ident, operator, aircraft type, origin/destination, and scheduled departure/arrival times. Answers 'what flights run SFO→JFK this week'. Complements flight.status and flight.airport-board.

Status of a watcher by watcherId: state (armed/completed/expired/cancelled), fires used/remaining, expiry, recent deliveries (with HTTP result + attempt count), and any UNDELIVERED events with their full callback bodies — the pull backstop, so a missed push is always recoverable here. Pairs with watchers.crypto-address-activity.

Resolve a hostname over public DNS and return parsed records. Query: host (required FQDN), types (comma-separated: A,AAAA,MX,TXT,NS,CAA,SRV,CNAME,PTR,SOA — default A,AAAA,MX,TXT,NS), resolver (cloudflare|google|quad9|opendns, optional). Returns one normalized JSON shape per record type with per-type error pass-through. Reserved/local TLDs (.local, .internal, .invalid, .test, localhost) are rejected. 4s per-query timeout.

Transaction history for an Ethereum address (via Etherscan V2). Returns normal transactions newest-first: hash, block, timestamp, from/to, value (wei + ETH), gas used, gas price, decoded method id + function name, error flag, and any contract created. Paginate with page + offset; bound with startBlock/endBlock. Defaults to Ethereum mainnet; other EVM chains are reachable by chainId where upstream coverage allows. Net-new vs crypto.tx (single-hash receipt).

ERC-20 token transfer history for an Ethereum address (via Etherscan V2). Each transfer: hash, block, timestamp, from/to, token contract, name, symbol, decimals, and value (raw + decimal-adjusted). Optionally filter to one token contract. Paginate with page + offset. Defaults to Ethereum mainnet; other EVM chains by chainId where upstream coverage allows. Trace what tokens a wallet sent/received.

Token honeypot & rug-pull risk screen (via GoPlus, free/keyless). For an ERC-20 on any EVM chain, returns honeypot flag, buy/sell tax, open-source/proxy/mintable status, hidden-owner / take-back-ownership / selfdestruct / external-call risks, blacklist/whitelist/anti-whale flags, holder count, and owner/creator concentration. Essential pre-trade safety check for agents — the security layer competitors charge for.

Centralized-exchange 24h ticker for a spot pair (e.g. BTC-USD), free/keyless: current price, best bid/ask, 24h open/high/low, 24h + 30d volume, and 24h percent change. Real CEX spot quote — distinct from crypto.token-price (CoinGecko aggregate).

Headline central-bank policy/benchmark rates side-by-side in one call, normalized: US (Fed effective funds rate), Euro area (ECB deposit facility rate), Japan (BoJ call-money benchmark), United Kingdom (SONIA, which tracks the BoE Bank Rate). Each result names the bank, country, the rate, the as-of date, the FRED series id, and a label stating exactly which instrument it is (banks don't all publish the same policy instrument). Pass bank to filter (one of: fed, ecb, boj, boe), or omit for all. Source: FRED (St. Louis Fed).

The "kimchi premium" — how much higher a crypto asset trades on Korean exchanges (Upbit, KRW) than its global USD price, as a percent. Computed as (Upbit KRW price / (global USD price × USD/KRW)) − 1. Pass symbol = ticker(s), comma-separated up to 10 (default BTC); supported majors include BTC, ETH, XRP, SOL, DOGE, ADA, TRX and more. Returns per symbol { krwPrice, usdPrice, usdKrw, globalUsdInKrw, premiumPct }. Per-symbol resilient (one unlisted symbol does not fail the rest); unresolved symbols are reported in meta.errors. Live blend of Upbit (KRW price) + CoinGecko (global USD) + ECB/Frankfurter (USD/KRW FX).

Live ERC-721 NFT read (Base, Ethereum, Polygon, Arbitrum, Optimism; keyless). Given a contract + tokenId: returns current owner, collection name/symbol, and tokenURI (IPFS auto-resolved to a gateway URL). Pass metadata=1 to also fetch and normalize the token's JSON metadata (name, description, image, attributes). For NFT provenance, ownership checks, and gallery rendering.