Unit conversion for length, mass, volume, and temperature using exact conversion factors (temperature uses the correct affine formulas, not simple multiplication).
Offline validation of product barcode numbers: EAN-8, UPC-A, EAN-13 and GTIN-14, using the GS1 mod-10 weighted checksum. Catches corrupted GTINs in supplier catalogs bef…
Nord Pool day-ahead electricity spot prices (EUR/MWh, 15-min resolution) for the ee, fi, lv and lt bidding zones, from the Estonian TSO Elering's open-data API. Defaults…
As-filed XBRL fundamentals for any SEC-registered company, straight from the EDGAR companyconcept API (updated as filings are accepted). Query: ?cik=320193 (Apple) &tag=…
Web search: ranked results (title + url) for a query
Pyfile x402 APIWeb search: ranked results (title + url) for a query. ?q=x402+agent+payments&limit=8
Read the current block height directly from a supported Base, Ethereum, or Arbitrum public JSON-RPC provider.
Fetch current USD price, market capitalization, 24-hour trading volume, 24-hour percent…
Live Crypto Market SnapshotFetch current USD price, market capitalization, 24-hour trading volume, 24-hour percentage change, and source update time for up to 20 crypto assets in one call.
Read contract event logs across a strictly bounded block range with an optional topic0…
Bounded EVM Event LogsRead contract event logs across a strictly bounded block range with an optional topic0 filter and capped response count.
The x402 market by seller over the last 30 days: estimated revenue, paid calls, paying wallets, calls per payer, median price, networks and each seller's top resource -…
Live staking yields with liquid staking, liquid restaking (ether.fi/Renzo/Kelp), and best_strategy recommendation. ETH, SOL, ATOM, ADA, DOT, AVAX, MATIC. $0.05/report vi…
Get resolved/historical prediction markets from Polymarket. Filter by date range, slug, or category.
Key US macro indicators in one call, live from FRED: Fed funds rate, unemployment rate,…
US Macro Indicators DashboardKey US macro indicators in one call, live from FRED: Fed funds rate, unemployment rate, CPI/core CPI/PCE inflation (YoY), real GDP growth (QoQ annualized), industrial pr…
Day's biggest gainers and losers screened from the entire market, live from Yahoo Finance
Market Movers (Gainers & Losers)Day's biggest gainers and losers screened from the entire market, live from Yahoo Finance. Each mover includes ticker, company name, current price, intraday change amoun…
Aggregated prediction-market statistics by sector
api.predictionmarketdata.ioAggregated prediction-market statistics by sector.
New pair scan seconds after launch: Uniswap v4 pools read straight off Base before any indexer has them - the launched token address, whether anyone has funded it yet, a…
Trending Base pool scan: the DEX pools moving on Base right now, with price, 24h volume and liquidity; ?limit=N sets how many
A token on several Base DEXes should cost about the same on each; a gap is either an arbitrage window or, on a thin pool, a mispricing that signals wash/manipulation. Co…
Before an agent takes a NEP-141 token on NEAR: who can change it
NEAR Token SafetyBefore an agent takes a NEP-141 token on NEAR: who can change it? Counts full-access keys that can redeploy the contract, and asks the contract for an owner and a pause…
Net worth of a NEAR account: its NEAR (liquid and staked) plus balances in every NEP-141 token NEAR Intents routes with a live price — USDC, USDT, wNEAR, bridged BTC and…
Top holders of a NEP-141 token on NEAR with each one's share of total supply, labelled as the token itself, an issuer treasury, a contract (pool, bridge, custodian) or a…
Measured APY of NEAR liquid staking (LiNEAR, Meta Pool stNEAR): each token's redemption price in NEAR now against N days ago from an archival node, annualised — no adver…
Give a Base token + a trade size in USD → estimated buy AND sell price impact, whether you can unwind that size without collapsing the pool, and the largest safe exit. T…
Reads the deepest pool's 24h volume, buy/sell counts, liquidity and price move, and sco…
Volume Authenticity CheckReads the deepest pool's 24h volume, buy/sell counts, liquidity and price move, and scores how organic the activity looks. Volume 10x+ the pool's liquidity, near-perfect…
b20-safety says a tokenized stock is a real issuance; this says what it trades at ON-CH…
Tokenized Stock Price (onchain)b20-safety says a tokenized stock is a real issuance; this says what it trades at ON-CHAIN and whether there's liquidity for size. Pass symbol=AAPL (or AAPLc) for the de…