Live Polymarket prediction markets: outcome probabilities, 24h volume, liquidity, 24h price change and end date. Search by topic (query, e.g. 'bitcoin', 'election', 'fed rate') or omit query to get the markets with the highest 24h volume. Only open markets. Params: query (optional), limit (1 to 25, default 10).

Check whether a URL is reachable and what it returns: final status code, full redirect chain, response time, content-type, server header and content length. Use for link validation, uptime checks, canonical URL resolution or before spending money on a scrape/screenshot. Params: url (required), method (GET default, or HEAD).

Render a chart to PNG from JSON: bar, line, pie, doughnut, scatter, radar, polarArea or bubble. Pass a full Chart.js config (config) or the shortcut type + labels + datasets [{label, data}] + title. Rendered with Chart.js in headless Chromium, no external requests. Params: config or type/labels/datasets, title, width and height (100 to 2000 px, default 800x500), background (CSS color, default white). Returns image_base64 (PNG).

Render Mermaid diagram code to SVG and/or PNG: flowchart, sequence, class, state, ER, gantt, pie, mindmap, timeline and more. Invalid syntax returns HTTP 400 with the Mermaid parse error (not charged), so an agent can fix and retry. Params: code (Mermaid source, required), format (svg default, png or both), theme (default, dark, neutral, forest, base), width (200 to 4000, default 1200), background.

Find out what people say about a topic or a specific link. Searches Hacker News (stories with their top-ranked comments), Bluesky posts and Lemmy threads (with top comments) in one call, by keywords or by URL (finds every thread that shared that link, useful for product launches, articles and competitors).

Daily true-color satellite image of any area from NASA GIBS (MODIS Terra/Aqua or VIIRS, about 250 m per pixel, coastlines overlaid) as base64 JPEG. Useful to see clouds, smoke, snow, floods or fires on a given day. Params: place ("Zurich, Switzerland") or bbox [min_lat, min_lon, max_lat, max_lon] or lat + lon + radius_km (5 to 500, default 50), date (YYYY-MM-DD, default yesterday), layer (modis_terra default, modis_aqua, viirs_snpp, viirs_noaa20), width (64 to 1024, default 512), height…

Proof of existence on the IOTA mainnet: send text, a SHA-256 hash or a URL and get a tamper-proof timestamp. We store only the SHA-256 (never your content) in a locked notarization of the official IOTA Notarization package: it cannot be changed or transferred and its deletion is locked until 2106. Returns object id, transaction digest, ledger time and explorer links. Use for contracts, invoices, AI outputs, datasets, web page evidence or audit logs. Check later with iota-verify.

Everything about an IOTA mainnet address or IOTA name (alice.iota): IOTA balance and every other coin with symbol, staked IOTA per validator with estimated rewards, USD value, the IOTA name pointing to it and its latest outgoing transactions. Resolves names to addresses and back.

Check dependencies before your coding agent installs them: up to 20 packages per call (npm, PyPI, crates.io, Go, Maven, NuGet, RubyGems), one decision each: ALLOW, CAUTION or BLOCK with reasons. Catches hallucinated package names that do not exist (slopsquatting), known malware (OSV malicious-package feed, including versions already removed from the registry), typosquats one typo away from a popular package, critical and high vulnerabilities in the exact version with a safe upgrade, deprecated…

Convert text to natural speech audio (MP3, WAV or OGG) with neural Piper voices: en-female, en-male (US English) and de-male (German); all voices public domain or CC0, so the audio can be used commercially. Params: text (required, max 2000 characters), voice (default en-female, or picked from language), language (en or de), speed (0.5 to 2, default 1), format (mp3 default, wav, ogg). Returns audio_base64 and duration.

Watch an IOTA mainnet address or IOTA name in a loop and get only new transactions since your last call: direction, IOTA amount, status, time and explorer link, plus the current balance. First call returns recent transactions and a cursor; pass the cursor back on the next call. For deposit detection, treasury and whale watching.

Portfolio of any wallet in one call with total USD: for an EVM address the native coin and major tokens on Base, Ethereum, BSC, Arbitrum, Polygon, Avalanche and Optimism at once; for a Solana address SOL and every SPL token with a market price; Bitcoin and Tron addresses too. Per asset amount and USD, totals per chain. For agents that check a counterparty, a treasury or their own funds before acting.

Timestamp anything on Bitcoin with OpenTimestamps: send text, a SHA-256 hash or a URL and get a standard .ots proof (base64). Only a salted hash leaves our server. The public calendars anchor it in a Bitcoin block within hours; then btc-timestamp-verify returns the block and the complete proof, which anyone can check with the open-source ots tool. For contracts, AI outputs, datasets, invoices and web evidence.

Convert documents between formats with pandoc: Markdown, HTML, DOCX, ODT, EPUB, RST, LaTeX, RTF, plain text and PDF. Input as text (content), file (file_base64, max 10 MB: docx, odt, epub, rtf) or url. Input format is detected automatically or set with from. Text outputs come back as content, binary outputs (docx, odt, epub, pdf) as file_base64. Local file includes and remote images are not loaded. Params: to (required), content or file_base64 or url, from, title.

Bitcoin transaction by txid: confirmed or in the mempool, confirmations, block, fee in sats and sat/vB, RBF signal, inputs and outputs with addresses and amounts, USD value. Use to confirm a payment arrived or to check why a transaction is stuck.

Look up an IOTA mainnet transaction by digest in plain JSON: status and error, time, checkpoint, sender, Move calls, gas fee in IOTA, balance changes per address with coin symbols, created, changed and deleted objects, and events. Use to confirm a payment or contract call on IOTA.

Invoice data extraction for accounting agents: PDF, photo or XRechnung / ZUGFeRD / Factur-X XML to JSON (number, dates, seller and buyer with VAT ID, line items, tax per rate, totals, IBAN, payment terms). E-invoices are read exactly from the embedded XML, without AI; plain PDFs and photos by Claude Haiku 5.5. Every result is checked: totals add up, seller VAT ID in EU VIES, IBAN and BIC. Says whether the file is a real EN 16931 e-invoice. Up to 15 MB.

Scam and phishing detection for crypto wallets, trading bots and social agents: check a DM, cast, tweet, email or comment before your agent or user acts on it. Returns a verdict safe, suspicious or scam, a 0 to 100 risk score, the scam type (wallet drainer, fake airdrop, phishing login, impersonation, seed phrase theft, fake support, giveaway doubling, investment fraud, pig butchering, malware), red flags with exact quotes, and advice.

Everything about a Sui mainnet address or SuiNS name (alice.sui): SUI balance and every other coin with symbol, staked SUI per validator with estimated rewards, USD value, its SuiNS name and latest outgoing transactions.

Website change monitoring for agents that check in a loop: send a URL and get only what changed since your last call (added and removed lines of the page text), plus optional keyword alerts. First call saves a baseline and returns a cursor; pass the cursor on the next call. The cursor only advances when a change is reported, so nothing slips through between polls. Good for price pages, docs and changelogs, job boards, status pages, competitor sites, government notices.