Derivatives venues ranked by open interest and volume.

Historical perpetual funding rates, for carry and basis work.

Public GitHub facts: repo stats with latest release, a user/org profile, or a star-ranked repo search

Certificate-transparency history for a domain (crt.sh) — every TLS certificate issued, which doubles as subdomain discovery

Risk-ADJUSTED DeFi yields: pools ranked by yield PER UNIT OF RISK, each top pool's underlying token run through our on-chain rug/safety scanner. A computed signal (volatility, IL, reward-dependency, TVL depth, 7d momentum + contract verdict), not a raw DefiLlama pass-through.

ENS resolution: name->address (forward) or address->primary name (reverse). Ethereum mainnet.

Tell whether a public web page changed since you last looked, with nothing stored on this side. One fetch (15 s, 2 MB) takes the text a reader sees (hidden elements, scripts and styles dropped; a CSS selector narrows it to one region), collapses whitespace, strips any ignore entries (a literal substring, or /pattern/ for a regex, for timestamps and counters), and answers a sha256 fingerprint of that text with the origin's ETag and Last-Modified.

DeFi global market overview: total DeFi market cap, ETH ratio, 24h trading volume, DeFi dominance, top DeFi coin via CoinGecko.

Spot USD price of gold, silver, platinum and palladium, returned as one normalised list keyed by ISO symbol (XAU/XAG/XPT/XPD) with human names attached — the metals leg of a macro, inflation-hedge or collateral judgement in a single call.

Base account nonce. Read the transaction count (nonce) of a 0x address on Base, both confirmed and including pending transactions. Use to build the next transaction or to tell whether an address has ever sent anything; for its balance use base_balance. A malformed address is rejected with 400, uncharged.

End-of-day OHLCV bars for every US-listed ticker on a single date; one call returns the entire market. Pass `?date=YYYY-MM-DD` (required). From x402stock, a pay-per-call market & economic data API for AI agents. No API key or account; pay in USDC via x402.

Xynaptic Grid Status — current European grid health proxy: price volatility, renewable stress signals, load-shift recommendations. Will be enriched with ENTSO-E data (grid-status ENTSO-E access).

Which address is behind this ENS name? Resolves a .eth name on Ethereum mainnet to its 0x address; unknown names return 404 and are not charged ($0.002 per call).

DeFi exploit/hack history — 574+ incidents sorted by funds lost with technique, chain, classification. Filter by minimum amount (DeFiLlama).

What is inflation, GDP growth or unemployment in these countries? Resolved to each country's latest published year and returned with ISO code, year, value and unit — one call for a whole country set, with no series ids to look up and no per-country round trips.

Sitemap parser, URL extractor. Read one public XML sitemap or sitemap index as structured URLs and source-reported dates. Supports gzip, substring filtering and pagination. Maximum 512 KiB expanded input and 1000 entries. Does not crawl pages or follow child sitemaps. Invalid XML and execution errors are not charged; a valid empty match is charged. Use to find which pages of a docs site to read before calling /extract.

Base gas price and fee estimate. Live gas prices on Base (chain 8453) read from the latest block: base fee and priority fee in gwei, suggested maxFeePerGas and maxPriorityFeePerGas in wei for an EIP-1559 transaction, how full the latest block is, and the estimated execution fee in ETH for an ETH transfer and an ERC-20 transfer. Use before sending a transaction on Base or to decide whether to wait for lower fees.

Lemmy (fediverse link aggregator) posts from an instance or a single community, with score and comment counts

Base native balance. Native ETH balance (eth_getBalance) of any 0x wallet address on Base at the latest block, in wei and in ETH. Use to check whether a wallet can pay gas or a transfer; for ERC-20 tokens use base_token_balance, for all holdings at once use wallet_portfolio. A malformed address is rejected with 400, uncharged.

BBC News top stories from the public BBC RSS feed (latest items; keyword filter on title/summary). Headlines and summaries only, no full article text. Public feed, no key.