Estimate the gas and the cost in ETH and USD of a Base transaction before signing it. Input: to, and optionally from, data and value

Current cross-asset macro conditions for crypto: liquidity, volatility, rates and upcoming calendar risk (CPI, FOMC, etc), with a per-asset directional bias only when the live composite supports one. For setting risk posture, not a daily signal feed. Not financial advice.

Crypto market rotation and altseason regime detector: sector/asset rotation score, breadth, relative strength, and which coins are rotating in vs out. Tells an agent whether capital is flowing to BTC, ETH, or alts right now. Not financial advice.

x402 protocol updates as JSON: recently merged changes in the x402 Foundation repository (formerly coinbase/x402), latest tags, and current npm versions of the @x402 packages (core, evm, express, fetch, extensions) and @coinbase/x402. Read live from GitHub and npm, with links.

Weather forecast and current weather for any city or lat,lon worldwide, from MET Norway: daily forecast up to 10 days plus optional hourly forecast up to 48 hours. Current: temperature, feels like, humidity, wind and gusts, precipitation, cloud cover, pressure, conditions text. Daily: min/max, conditions, precipitation sum and probability, max wind, UV index, sunrise/sunset.

Fetch an RSS 2.0, RSS 1.0 or Atom feed and return normalized JSON items (title, link, published_at ISO 8601, summary without HTML, author, guid). Use for monitoring blogs, news sites, GitHub releases, podcasts or any feed URL without writing an XML parser. Params: url (required), limit (default 20, max 100).

Status of every Ethereum Improvement Proposal as JSON: number, title, status (living, final, last-call, review, draft, stagnant, withdrawn) and link, plus counts by status. Parsed live from eips.ethereum.org (EIPs are CC0).

Tron address check: TRX balance and staked TRX, USDT and USDC (TRC-20) balances, USD value, when the account was created and last active, bandwidth and energy, and warning signals (never activated, created in the last 7 days, smart contract instead of a wallet). Use before sending USDT on Tron or to check a counterparty; fresh or never-activated receiving addresses are typical for scams.

Validate an IBAN (checksum, country length and structure), split it into bank code, branch and account number, report SEPA membership, and for DE, AT, CH, NL, BE, LU and LI add bank name, BIC and city. Params: iban (required, spaces allowed).

Latest crypto news from CoinDesk, Cointelegraph, Decrypt, The Block and Bitcoin Magazine, merged and ranked: the same story covered by several outlets is grouped and ranked higher, newer stories rank higher. Each article has title, source, URL, publish time, 300-character summary, mentioned tickers and which outlets covered it. Filter by coins (tickers) or keywords. Params: coins (e.g. ['BTC','ETH']), query (keywords), hours (lookback 1 to 168, default 48), limit (1 to 50, default 20), sources.

List the URLs of a website without reading them: robots.txt, sitemaps and sitemap indexes plus homepage links, up to 1,000 same-site URLs with lastmod and source. A cheap first step to decide which pages to read with web-read-batch or site-crawl. Returns no page content. Params: url (site or domain, required), max_urls (1 to 1000, default 200).

Detect the language of a text (80+ languages) with ISO 639-1 and 639-3 codes, confidence, a reliability flag and the top candidates. Runs locally, nothing is stored. Params: text (required, up to 20,000 characters), top (number of candidates, default 3).

Public and bank holidays for 200+ countries and their regions (states, cantons) for any year, with local names. Optionally check whether a given date is a holiday. Params: country (ISO 3166-1 alpha-2, required, e.g. DE, US, CH, JP), region (e.g. BY, CA, ZH), year (default current), date (YYYY-MM-DD to check), language (e.g. en), include_observances (default false).

US public company data from SEC EDGAR: company profile, recent filings (10-K, 10-Q, 8-K, Form 4 insider trades, S-1 ...) with direct document links, and optionally the latest annual financials (revenue, net income, assets, liabilities, equity, operating cash flow, diluted EPS). Params: ticker or cik (one required), forms (filter, e.g. ['10-K','8-K']), limit (1 to 50, default 10), include_financials (default false).

Search volume, CPC, competition, keyword difficulty and search intent for up to 100 keywords in one $0.04 call (Google Ads data). Use when you already have a keyword list to prioritise. volume = avg monthly searches, cpc in USD, competition 0-1, difficulty 0-100. Keywords without data are left out of results and listed in missing (still charged). Bad input is free; upstream errors are not charged.

Quick factual lookup: a plain-language summary (abstract) plus up to 5 relevant links from Wikipedia. Best for people, places, concepts, history and science. Returns links, not page content: to get the content of the top results in the same call, use search-read. Not for breaking news: use news-search. Params: query (required).

Verify an OpenTimestamps proof (.ots as base64, from btc-timestamp or any ots client): upgrades pending proofs from the calendars, checks each Bitcoin attestation against the real block's merkle root and returns status (confirmed, pending), block height and time, the upgraded proof, and whether your text, hash or URL matches.

Web page to markdown (read URL as clean text) for LLM agents: main content only (no nav, cookie banners, ads), with title, description, author, dates, language, headings, internal/external links and JSON-LD types, PLUS a prompt-injection scan of the page (visible text, hidden HTML, comments, invisible Unicode) so your agent knows whether the content tries to give it orders. Fetched from Cloudflare's edge, ~0.5 s. Unreachable pages are not charged.

Decode a 17-character vehicle identification number with NHTSA vPIC: make, model, model year, trim, body, doors, engine (cylinders, displacement, hp, fuel, electrification), drive, transmission, manufacturer and plant. Validates format and the check digit (mandatory for North American VINs). Best coverage for vehicles sold in the US. Params: vin (required).

Bitcoin address lookup for agents: confirmed and pending balance in BTC and USD, total received and sent, transaction count and the latest transactions with net amount, confirmations and fee. Works for bc1 (SegWit, Taproot), 1 and 3 addresses on Bitcoin mainnet. Use to check a payment, a treasury or a counterparty wallet.