Email verification / validation API for lead lists (up to 20 addresses per call, ~1 s): syntax, domain mail setup (MX), mailbox provider (Google, Microsoft, Zoho, gateways), disposable / temporary domains (~10k), free webmail, role accounts (info@, sales@), typo suggestions (gmial.com -> gmail.com). Verdict valid / risky / invalid + score. No SMTP probing, no mail sent.

Grounded answer with inline [n] citations: searches the web, fetches sources, and answers strictly from them.

Multi-step research in one call: plans sub-questions, searches each, fetches and dedupes sources, and synthesizes an answer with inline [n] citations, key findings, and gaps. Tiers: quick = 1 search / 5 sources ($0.08); standard = 3 sub-questions / 8 sources ($0.20); deep = 5 sub-questions / 12 sources ($0.35). Default: standard.

Full transcript of any YouTube video with timestamps. Accepts a video ID or any YouTube URL.

What Hacker News said about a topic: matching stories with points, comment counts and links to the threads, plus aggregates — total matches, points and comments returned, the domains most often submitted, and the first/last time it was discussed.

Scrape YouTube comments from any videos: top or newest, with replies, likes, reply counts, author and channel id, pinned/hearted, publish time, direct comment links. No API key, no quota. Cheap per comment. One search per call (result caps in the input schema); failed lookups are not charged.

A company profile from its domain, read live from its own site: what it sells and to whom, pricing and plans, NAICS sector, self-reported head count band, open roles from its Greenhouse/Lever/Ashby board, tech stack, socials, security.txt role contacts, and the domain's registrar, age, email provider, SaaS vendors and SPF/DMARC posture. Each AI-read field names its source page; coverage flags show what was found.

Newest DEX pools ranked by early momentum (volume acceleration, buy pressure, unique buyers, liquidity) with rug flags, on solana, base, eth, bsc, arbitrum, polygon or avax. Not advice.

What a site is built and run on, from a single fetch: frameworks, CMS, ecommerce platform, CDN, analytics, payments, support widgets and web server — each with the header or HTML marker that proves it.

Off-chain due diligence on a project's web presence — the half on-chain rug checkers cannot see. Domain age and registrar, whether a team page, whitepaper, docs and socials exist, whether the site is an off-the-shelf template, and a cross-check of the contract address you are about to trade against the addresses actually printed on the project's own website. Returns weighted risk signals and an A-F grade. Reads nothing on-chain.

Economic data / macro indicators for any country, live: GDP, growth, GDP per capita, inflation (CPI), unemployment, population, interest rates, exchange rate, debt, trade, FDI or any World Bank indicator code. Annual for 200+ economies from the World Bank; monthly EU inflation and unemployment from Eurostat. Returns the series, latest and previous values, the change and the source's update stamp. Input: indicator, country; optional last, frequency.

Cheapest check: does this Québec contractor hold an ACTIVE RBQ licence right now? Returns active true/false, licence number, name, NEQ, city, restriction flag and authorized work categories. Use to vet many contractors fast; use qc-contractor-check for RENA and penalties. Input: name, NEQ or RBQ licence number.

Extract the main article/content body from one bounded public static HTML page as clean text and conservative Markdown. Forest deterministically selects article-like content, strips common navigation/footer/form/aside/consent chrome and returns bounded metadata. No JavaScript rendering, link following, authentication or model inference. Base mainnet USDC

Report public delivery options for an isolated ephemeral cart and destination when the provider exposes them. No customer cart, payment or order is touched. Base mainnet USDC

Check whether a requested product quantity is allowed for a public variant before cart or checkout. Returns known minimum, maximum, increment, stock availability and blockers from public Shopify or WooCommerce data; unknown stock remains unknown and nothing is reserved or purchased. Base mainnet USDC

Real-time USDC payment feed for any Base address (a trigger for agents): new payments in and out since a cursor, each labeled with the x402 seller (Bazaar listing) when it is one. Poll with since=<cursor> to get only new ones.

Country code to World Bank name, region, capital, income group and lending classification

Compose bounded API discovery with one deterministic OpenAPI or Swagger preflight into a concise agent-readiness state. The check does not authenticate, call discovered API operations, or prove business-level API correctness. Base mainnet USDC

Which x402 API should I call? API recommender / discovery for agents: describe the need in plain words; get the best x402 endpoints from the WHOLE Bazaar (36k+ endpoints, re-indexed every 6 h) ranked by relevance, real 30-day demand (unique payers, calls), recent use and price, with method, price, networks and a ready-to-send example call. Max 2 per seller, dead tunnel URLs removed. Filters: max_price, network.

Timezone converter: convert an instant to wall-clock time in a named IANA time zone, or a wall-clock time in a zone back to an instant. Returns the local date and time, the UTC offset in ±HH:MM and seconds, the zone abbreviation, whether DST is in effect, the ISO week date, and the day of year. Handles the ambiguous and skipped local times at DST boundaries explicitly rather than guessing.