Fetch a public page and grade its on-page SEO: title and meta-description length, H1 and heading outline, canonical, meta-robots indexability, viewport/lang/charset, hreflang, Open Graph and Twitter Card completeness, image alt coverage and word count — plus optional focus-keyword placement and density. Returns a pass/warn/fail verdict per check and an overall 0–100 score.

Recent earthquakes worldwide from the USGS real-time feeds: time, magnitude, place, depth, coordinates, tsunami flag and alert level. Filter by period (hour, day, week, month) and minimum magnitude class (significant, 4.5, 2.5, 1.0, all). Use it for hazard monitoring, travel or logistics checks and news context. Updated every few minutes.

Impermanent loss for a constant-product LP given price_ratio = new price / entry price.

VAT price calculator for supported European countries: net-to-gross or gross-to-net with the current standard or reduced rate. Returns net, VAT amount and gross. Use when you have a price and a European country and need the amount with or without VAT.

Current air quality at a place: PM2.5 and PM10 (µg/m³), US and European AQI, from Copernicus CAMS via Open-Meteo, with a signed receipt. Send latitude and longitude, or a city.

List a wallet's native ETH and USDC balances with human-readable amounts. Canonical wallet-balance contract for autonomous agents: address plus optional CAIP-2 chain.

Whale flow for one coin: large Hyperliquid perp orders (default >= $50k) for that coin over the window, net whale buy/sell USD and bias, plus live mark price, 24h change, hourly funding, open interest and 24h volume. Params coin (or address), chain=hyperliquid, min_usd (>=25000), window (15m|1h|4h|24h|7d, default 24h). Unknown coin returns 404 with no charge

Lowest listed models.dev price among models meeting your needs (min_context, max_input_per_1m, max_output_per_1m, max_job_cost_usd, capability, vendor, exclude_vendor), plus the next-lowest from a different vendor, with reasons, excluded counts and vendor status-page readings, each with source and …

Use when you need to check an IBAN before a payout or invoice: length per country, mod-97 checksum (catches typos), SEPA membership, and for Dutch IBANs the bank (ING, ABN AMRO, Rabobank, bunq...). Does not confirm the account holder.

Average consumer energy tariffs in the Netherlands per month from Statistics Netherlands (CBS table 85592NED): gas and electricity transport and supply tariffs, variable contract prices, dynamic electricity contracts, energy tax and tax reduction, including or excluding VAT. Use it for energy cost estimates and trend analysis. Averages, not prices of individual suppliers. CBS, CC BY 4.0.

Extract webpage metadata, OpenGraph and JSON-LD for one public URL. Scalar single-URL contract for MCP and autonomous buyer runtimes.

Find cities and towns worldwide (all places with 15,000+ inhabitants, about 30,000) by name, optionally within a country: coordinates, country, region code, population, time zone and GeoNames id, largest first. Use it for geocoding place names, disambiguation and to get a time zone or coordinates for a city. GeoNames data, CC BY 4.0, refreshed nightly.

Fetch any public web page or PDF and return clean Markdown, plus title, description, author, publish date, JSON-LD and outgoing links. Built for LLM agents.

Should I trade this token? One-word verdict (go / caution / avoid), 0-100 risk score, risk flags and the facts behind them: DEX liquidity USD, top-10 holder concentration %, LP locked %, buy/sell tax, honeypot and can-sell checks, mintable, proxy, hidden owner, blacklist, pausable, open source, CEX listings. Chains: base (default), ethereum, bsc, arbitrum, polygon, optimism, avalanche, solana (pass the mint as address). Live GoPlus scan (about 1-3 s); no charge if the scan fails

Validate the format and supported check-digit rules of tax IDs across Latin America and Spain: Chile RUT, Argentina CUIT/CUIL, Brazil CPF/CNPJ, Mexico RFC, Peru RUC, Colombia NIT, Spain NIF/NIE. Does not verify identity or registration with a tax authority. Use when checking a Latin American or Spanish tax ID's format before saving a customer or an invoice.

Hash sha256, sha512, sha1 or md5, HMAC, JWT decode (header, payload, expiry, optional HS256 check), UUID v4, base64 encode and decode, URL parse, time zone convert and unix to ISO: one deterministic op per call. Use this when an agent needs a verifiable transform without shipping its own library. Pure Node, no upstream, no model inference, nothing stored, JSON out. Free sample at /api/dev-utils/sample.

One combined reading for agent loops: AI provider health from public status pages, x402 facilitator reachability on the XRP Ledger and recent changes in our record. Returns storm (boolean), level, one reason, asOf and sources with timestamps. Not affiliated with any source. Cached up to 60 s. Use w…

x402 facilitator reading on the XRP Ledger: reachability of the t54 facilitator and on-ledger payment success from our own ledger scan, plus the share of known XRPL x402 endpoints answering with a valid 402. Returns ok, level, one reason, asOf and sources. Not affiliated with T54 Labs. Cached up to…

Official Dutch school holiday dates per school year and region (north, middle, south) from the Dutch central government: autumn, Christmas, spring, May and summer holidays with start and end dates. Use it for travel, staffing, pricing or scheduling around Dutch school breaks.

Polymarket markets and prediction market odds: one page of public markets from the Gamma API (text and status filters, order by volume or liquidity, outcome prices) or a wallet's positions and activity from the Data API, with source URL and read time. Use this when an agent needs prediction-market odds, event lists or a trader's positions as evidence for a forecast or a report. JSON, no model inference. Free sample at /api/polymarket-markets/sample.