Student housing near a university from Student.com (US and Canada): property name, type (PBSA = purpose-built student accommodation, Apartment...), monthly price from/to as listed, rating, distance from the campus in miles, coordinates and listing URL, nearest first, plus the number of properties Student.com maps around that campus. Input = the slugs in Student.com's university URL.

Domain registration data from RDAP (the successor of WHOIS): registrar, creation, expiry and update dates, status codes, nameservers and DNSSEC.

Translate text (up to 5,000 characters) between 100 languages with M2M100 1.2B.

Second-hand condominiums for sale in Japan from SUUMO: building name, headline, price (yen), address, nearest line/station and walk time, floor area (m²), layout (e.g. 2LDK), balcony, build year/month, selling agent and listing URL, 30 per page, for a prefecture (and optionally a city/ward code). Text is in Japanese as published.

Compare two supplied JSON exports using unique string key fields. Report additions, removals and changed fields, keeping missing/null/boolean/number distinct. No database access or writes; source export completeness is not established.

Compare up to 1000 caller-supplied invoice records for repeated supplier/reference/document identity and conflicting amounts or currency. Exact decimal strings; no external calls, accounting certification or payment decision.

What a seller's payTo address earned from x402 payments on Base in the last days, read from the chain: total, distinct and repeat payers, per day, per price, top payers and recent payments, with plain USDC transfers counted apart and your own test wallets left out on request. Includes the seller's Bazaar listings with their payers, calls and measured uptime.

Apply an RFC 7396 merge patch to supplied JSON with own-property-safe object construction; no stored data is changed.

ShanghaiRanking Global Ranking of Academic Subjects (GRAS): for a subject (55, e.g. Mathematics, Computer Science, Clinical Medicine, Economics) and year, ranked universities with rank or band, total score, the five indicator scores, country and institution URL. Filter by country or university name. Without a subject, lists the subjects and their codes.

Readings first, for each tracked data source's published terms page: terms URL, whether we could fetch the page, last check time and SHA-256 of the page. Then our record of what those terms say about display, paid readings and resale of its data: permission class, allowed uses, restrictions, requir…

On-page SEO audit of one public page from its HTML only: title and description length, one H1, canonical link, language, viewport, robots meta, Open Graph tags, images without alt text, internal and external links, word count. Returns each check with its value and pass or fail. No Core Web Vitals, backlinks or keyword volumes.

Name, symbol, decimals and total supply of an ERC-20 token on Base, by address or well-known symbol, with its Basescan link.

Everything about a Base transaction in one call: status, time, from and to, ETH value, the function called (for common selectors), the fee split into L2 execution and L1 data in ETH and USD, every ERC-20 transfer with symbol and readable amount, NFT transfers, and x402 payments (USDC transferWithAuthorization) with the seller named from Bazaar.

The USD price of any ERC-20 on Base, read from its Uniswap v3 and Aerodrome pools against USDC and WETH (ETH/USD from Chainlink). The deepest pool sets the price; each pool's price and depth is listed, and thin markets are flagged. Accepts an address or a symbol such as ETH, USDC, cbBTC, AERO, DEGEN, VIRTUAL.

The ETH balance and ERC-20 balances of an address on Base, for the tokens you name or a default list of well-known tokens (USDC, WETH, cbBTC, AERO, DAI, USDT, DEGEN, VIRTUAL and others), with USD values for ETH, stablecoins and up to five other held tokens priced from their pools.

Extract the text of a PDF at a public URL, page by page, with its title, author and page count. Up to 10 MB; scanned PDFs without a text layer return little text.

Check a web page for changes: each call compares the page's readable text with your previous check of the same URL (kept per paying wallet for 90 days) and returns whether it changed, when you last checked, and the added and removed lines. The first call records the page. Use name to keep several watches of one URL apart.

A, AAAA, CNAME, MX, TXT, NS, CAA and SOA records of a domain from public resolvers (Cloudflare and Google), or just the types you ask for, and whether the domain exists.

Encode text or a URL as a QR code: PNG (base64 and a data URL) or SVG, with the size and error correction level you choose.

Request an https URL and report whether it is reachable, its status, every redirect hop with timings, key and security headers (HSTS, CSP and others), and the TLS certificate with its issuer, the names it covers and the days until it expires. An unreachable URL is a result too, with the reason.