Resolves a d20 ability check, skill check, attack roll, or saving throw for tabletop RPGs. Rolls a d20 with an optional modifier and advantage/disadvantage, compares to a DC, and reports total, success/failure, and natural-20 / natural-1. Seedable. Use it as a d20 check resolver API for any RPG.

Detect AI-generated writing with a calibrated probability score. Returns a 0-1 likelihood, a verdict, suspicious phrases, and per-axis style signals (em-dash overuse, hedge phrases, formulaic transitions). Works as an AI content detector, GPT detector, or ChatGPT-text checker.

Returns current air quality readings and AQI category for any latitude/longitude, with optional hourly forecast rows for the next 1-72 hours. Air-quality data from Open-Meteo. Use it as an air quality API covering US AQI, European AQI, PM2.5, PM10, ozone, nitrogen dioxide, sulphur dioxide, and carbon monoxide.

FAA airport delays / ground stops / ground delay programs (GDP) / arrival-departure delay feed / NAS Status / FAA OIS air-traffic disruption monitor / weather-driven program changes. Live US airport disruption events from the FAA National Airspace System Status feed: ground stops, GDPs, AFPs, arrival/departure delays, and closures with reason and timing. Filter by IATA-3 airport and event type. Federal public — no auth, no rate-limit hassle.

Computes a loan's amortization schedule and payment breakdown. Same backend as loan-amortization-calculator, focused on scheduled payment, payoff months, total paid, and interest saved. Use it as an amortization schedule API, loan payment schedule, or debt amortization calculator.

Finds the closest archived snapshot of a public URL, like a Wayback Machine API. Given a URL and optional timestamp, returns the closest archived capture URL, archive timestamp, and optional cleaned archived page text for citation repair, reference rot fixes, due diligence, and provenance checks. Use it as a web archive lookup, historical webpage snapshot, or archived URL finder.

arXiv full-text search. Search by query / author / category / id-list. Returns title, authors, abstract, primary category, dates, PDF URL, DOI. Public arXiv API.

Sunrise sunset times. Computes sunrise, sunset, solar noon, day length (seconds), and civil / nautical / astronomical twilight begin & end for any latitude/longitude on any date. Also covers golden hour, dawn / dusk, and full astronomy-times. UTC ISO8601 strings. Wraps sunrise-sunset.org's public API — no auth, commercial-OK.

Normalize audio loudness to a target LUFS level for podcasts, YouTube, and Spotify delivery. Send an audio_url plus an optional target_lufs (defaults to -16) and true_peak, and it probes duration, runs two-pass EBU R128 loudness normalization, and returns a hosted MP3 URL with the applied target and duration in seconds. Common presets: -23 for broadcast, -16 for podcasts, -14 for streaming platforms. Use it as a loudness normalizer, LUFS correction API, or audio mastering step before publishing.

Returns a random creature with a short encyclopedia entry and a fun fact. Optionally pick from a category (mythology, folklore, cryptid, literature, film, game, religion, sci-fi). Each call varies. For prompts, content feeds, and inspiration. Use it as a random creature API, monster of the day, or random mythical creature generator.

Generates blog header images: SFW header images, newsletter visuals, and documentation illustrations from prompts. Same backend as image-generate. Use it as an article hero image or editorial illustration generator.

BLS Public Data API — wages, employment levels, growth by series ID. Federal public, free. Optional BLS_API_KEY for higher rate-limits.

Loads a public URL with JavaScript enabled and returns rendered HTML, title, final URL, byte count, or a base64 screenshot when requested. Same headless browser runtime as browser-session. Use it as a browser render API, dynamic page renderer, post-JS HTML fetcher, or to render a JavaScript page.

Loads a public URL in a real headless browser with JavaScript executed, then returns the rendered HTML and page title, or a base64 screenshot. For pages a plain HTTP fetch can't read because the content is built client-side. Use it as a headless browser render API, JavaScript page renderer, dynamic page renderer, screenshot API, or to scrape JS-heavy sites and get the post-JavaScript DOM.

Generates translated subtitles from any video URL in one call. Composite: one call runs video-to-subtitles + translate. SRT subtitles are generated via Whisper v3, then the subtitle text is translated into the target language (100+ languages, structure preserved). Returns original subtitles, translated subtitles, and per-component telemetry. Use it for localized video captions, an SRT generator plus translation, or subtitle localization.

Company enrichment API / domain enrichment / organization enrichment / firmographic lite. Given a domain or email, returns normalized domain, inferred company name, MX records, and public homepage metadata including title, description, image, and status. Public-data only; no private enrichment database or social scraping.

Enriches a contact from email, name, domain, or company into a normalized public-data record with inferred display name, company/domain context, MX records, and optional homepage metadata. No private people database, LinkedIn scraping, or social-network scraping. Use it as a contact enrichment API, email-to-contact enrichment, or lead contact lookup.

Country info lookup. Resolves country metadata by common name, ISO 3166 alpha-2/alpha-3 code, or capital city. Returns capital, region, population, area, currencies, languages, timezones, calling code, flag emoji, neighbors. Wraps the public REST Countries v3.1 API — no auth, commercial-OK.

Cron expression parser. Takes a 5/6/7-field cron expression or @yearly/@monthly/@weekly/@daily/@hourly macro and returns a plain-English explanation, frequency bucket, validation result, and a runs-per-day estimate. Useful for explaining a schedule to a human, validating a cron string, or generating a cadence summary.

Searches recent bitcoin, ethereum, and DeFi headlines via GDELT with a GNews fallback when configured, returning headline URLs, domains, timestamps, language/country metadata, and headline sentiment. Not trading advice. Use it as a crypto headlines API or low-cost cryptocurrency news feed.

Fetches recent cryptocurrency news headlines from GDELT with a GNews fallback when configured, filtered by crypto topic or caller query, returning headline URLs, domains, timestamps, language/country metadata, and headline sentiment. Not trading advice. Use it as a crypto news API or market news feed for bitcoin news, ethereum news, DeFi news, or stablecoin news.

Returns recent cryptocurrency headline metadata and sentiment. Same GDELT-backed public news handler as crypto-news, exposed under API buyer wording with a lower-cost route for routers that sort by price. No scraping and no trading advice. Use it as a crypto news API, cryptocurrency news API, or DeFi news endpoint.

Classifies supplied crypto news headlines, project updates, or community posts by sentiment and emotion. Classification only, not investment advice. Same sentiment-analysis backend. Use it as a crypto news sentiment API, token headline sentiment tool, or Web3 community tone scorer.

Looks up a CVE and returns the full NIST NVD vulnerability record. Short alias of cve-lookup: CVSS v3.1 + v2 vectors, severity, CWE class, affected CPE list, references, public-exploit indicator with reference URLs, and a bounded exploitability summary. Federal public data. Use it as a vulnerability lookup, NVD record fetch, CVSS scorer, vuln advisory fetch, exploit-known check, or patch-priority triage for Log4Shell-style records.

Detects PII in text: emails, phones, SSNs, credit cards, addresses, names, IPs, and API tokens. Returns matches + risk_level, with optional redaction using [TYPE] tokens. Use it as a PII detector, personal data scanner, data leak scanner, or privacy redaction API.

Rolls dice from standard dice notation for tabletop RPGs. Evaluates XdY, flat modifiers (+/-), and keep-highest / keep-lowest (4d6kh3 for stat rolls, 2d20kh1 / 2d20kl1 for advantage/disadvantage). Returns each individual die, which were kept vs dropped, the per-roll total, and the grand total; roll the whole expression up to 100 times with 'rolls'. Pass 'seed' for reproducible output. Use it as a dice roller API, dice notation evaluator, or tabletop random roll engine.

DNS lookup / DNS resolver / dig replacement / nslookup API / DoH proxy / authoritative-record fetch / MX checker / SPF + DMARC TXT inspector / CAA + DNSSEC inspector / nameserver finder / CDN-routing detector. Queries Cloudflare 1.1.1.1 DNS-over-HTTPS for any subset of A, AAAA, MX, TXT, NS, CNAME, SOA, PTR, SRV, CAA, DNSKEY, DS, TLSA, HTTPS, SVCB records and returns both grouped (per type, with TTL) and flat shapes for easy consumption.

Checks whether a domain is registered and returns registrar, registration date, expiry date, days_until_expiry, and current EPP status flags. Works for any TLD that supports RDAP (effectively all gTLDs and most ccTLDs). Backed by rdap.org, the public RFC-7480-compliant aggregator; 404s map to is_registered: false rather than an error. Use it as an RDAP lookup, WHOIS replacement, domain registration checker, or expiry date lookup.

Domain enrichment API / company enrichment / firmographic lite. Given a domain, website URL, or email, returns normalized domain, inferred company name, MX records, and public homepage metadata including title, description, image, and status. Public-data only; no private enrichment database or social scraping.

Earthquake / recent earthquakes API / USGS earthquake feed. Returns recent earthquakes from USGS for any time window (hour, day, week, month) above a magnitude threshold. Includes location, magnitude, depth, tsunami flag. Each quake includes magnitude + type, depth (km), place, ISO8601 time, lat/lon, tsunami flag, USGS event URL, and felt-report count when available. Wraps USGS GeoJSON summary feeds - public domain, no auth.

Checks email deliverability by validating address format, MX reachability, temp-mail risk, role mailbox risk, and SPF/DMARC/DKIM authentication records without contacting the recipient mailbox. Use it as an email deliverability API, deliverability score, or inbox readiness domain check.

Verifies an email address with syntax, MX, disposable-domain, role-account, SPF, DMARC, and DKIM checks. Same DNS-safe email deliverability backend as email-verify, indexed for agents searching exact email verification wording. Use it as an email verify API or to validate email address input.

Scores internal survey comments and anonymized employee feedback by morale, workload, manager support, and retention risk. Same sentiment-analysis backend. Use it as an employee feedback sentiment API, engagement survey classifier, or workplace comment scorer.

eth_getLogs / on-chain event logs / EVM event reader / Transfer event scan / ERC20 Transfer logs / NFT mint logs / DEX swap events / multi-chain log scanner / log indexer / smart contract event reader. Generic eth_getLogs across Base / Ethereum / Arbitrum / Optimism / Polygon / BSC via public no-auth RPC. Supports address + up to 4 topics (with OR arrays), from/to block range, and a 'last_n_blocks' convenience param. Hard-capped at 5,000 logs and 10,000-block range per call.

Generates SFW event artwork, launch posters, and campaign backgrounds without relying on stock art. Same fast image-generate backend. Use it as an event poster image generator API, conference visual tool, or meetup campaign image source.

Exchange rates. Latest or historical FX rates between currencies, sourced from the European Central Bank (Frankfurter API). 30+ currency pairs. Optional amount conversion. No commercial restrictions. Specify a base currency (default USD), an optional quote currency or list, an optional date (YYYY-MM-DD or 'latest'), and an optional amount to also receive a converted value when a single quote is supplied.

FDA calendar API / FDA advisory committee meeting tracker / biotech catalyst feed. Same Federal Register-backed handler as fda-calendar, listed for agents monitoring upcoming and recent FDA AdComm notices, docket ids, committee names, and meeting dates.

Find products API (alias of product-search). Returns ranked product results with buy links, retailer, snippet, and detected price for a shopping query. Backed by Decodo Google search scoped to buy intent.

Flagged Solana tokens / risky token feed / DEX market-data risk screen. Same backend as solana-flagged-tokens, exposed under the high-demand buyer slug. Flags thin liquidity, extreme moves, sell pressure, very new pairs, and missing profile context.

Generates SFW images with Venice's flux-2-pro model on a dedicated endpoint. Fixed-model route for buyers searching specifically for Flux 2 Pro / FLUX.2 Pro image generation; use image-generate-pro when you want a selectable premium model tier. Returns a permanent fal-hosted PNG URL.

Returns perp funding rates for any Binance USD-M futures symbol (BTCUSDT, ETHUSDT, SOLUSDT...): current funding %, mark + index price, next funding timestamp, and the last 24 funding intervals (default 24 x 1h-since-event). Free public Binance API, no auth. Use it as a next-funding-time lookup, 24h funding history, or perp basis feed.

Gas API / blockchain gas fee estimator / EIP-1559 fee tiers. Returns base fee, safe-low, standard, and fast priority/max fees, plus USD tx-cost estimates for Base, Ethereum, Optimism, and Arbitrum.

Gas fees API / EIP-1559 transaction fee estimator / Base Ethereum Optimism Arbitrum gas tracker. Returns base fee, priority-fee tiers, maxFeePerGas, and USD cost estimates for common transactions.

Gas oracle / gas price API / EIP-1559 fee estimator / Base + Ethereum + Optimism + Arbitrum + Polygon gas tracker / etherscan-gas alternative / pre-tx cost estimator / USD gas-cost calculator / safe-low + standard + fast tier feed. Reads the chain's latest block, derives the EIP-1559 base fee, suggests priority fees for safe-low / standard / fast tiers, computes the total recommended maxFeePerGas, and converts cost to USD for common tx types (transfer, ERC-20 transfer, Uniswap swap, NFT mint).

Gas price API / EIP-1559 fee estimator / Base + Ethereum + Optimism + Arbitrum gas tracker / pre-tx cost estimator. Reads the chain's latest block, derives base fee, suggests priority fees for safe-low/standard/fast tiers, computes total maxFeePerGas, and converts cost to USD for common tx types.

Gas price API / EIP-1559 gas fee endpoint / blockchain transaction fee estimator. Same gas-price handler, discoverable for agents estimating base fee, priority fee tiers, maxFeePerGas, and USD transaction costs for Base, Ethereum, Optimism, and Arbitrum.

Ranked Google organic results for any query — title, URL, snippet, domain, and an optional recency filter, via Decodo Google Search. A Google Search / SERP API for agent source discovery; for cited synthesis use answer-web, for page extraction use scrape-to-json.

Search Hacker News for startup news, YC news, Show HN launches, and founder discussion through the Algolia HN index. Send a query, then filter stories, comments, or polls by author, minimum points, and ISO-8601 date range; sort by relevance or newest first. Returns titles, authors, points, comment counts, timestamps, URLs, and matching text. Use it as a startup news search API, YC news search, Show HN tracker, or developer news feed.

Searches 30M+ Hacker News stories and comments via the public Algolia HN index. Filter by type (story|comment|poll), author, minimum points, ISO8601 date range (since/until), and sort by relevance or recency. Returns total hit count plus per-hit objectID, title, author, points, comment count, created_at, URL, and story/comment text. Public Algolia API, no auth, commercial-OK. Use it as an HN search, yc-news or startup-news search, who-is-hiring scraper, or programmer-news firehose.

Honeypot.is buy/sell simulation for any Base or Ethereum ERC-20. Returns is_honeypot verdict, buy/sell/transfer tax %, simulation success flag, and a reason string when a honeypot is detected. Use before every swap to detect sell-blocking risk.