Geocoder / forward geocoder / address to lat-lng / address-to-coordinates / postal-code lookup / place-name resolver / Nominatim geocoder / OpenStreetMap geocoding API. Converts a free-form address, postal code, place name, or POI into latitude/longitude plus a structured address breakdown (house number, road, city, county, state, postcode, country) and bounding box. Returns a ranked list of matches with importance scores. Backed by OSM Nominatim — global coverage, attribution required by ODbL.

AI content detector / GPT detector / ChatGPT plagiarism checker. Calibrated probability (0-1), verdict, suspicious phrases, per-axis style signals (em-dash overuse, hedge phrases, formulaic transitions).

AI text humanizer / GPT detector bypass. Strips telltale LLM patterns (formulaic transitions, em-dash overuse, 'delve' / 'tapestry' / 'navigate the landscape'). 4 tones.

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.

Cross-exchange arbitrage spread / max-min price / CEX price dispersion / spread % calculator. For any CoinGecko-listed coin, pulls every tracked exchange ticker, computes the lowest and highest USD-converted prices, the spread %, and identifies which exchanges sit at each extreme plus the highest-volume venue. Filters out stale or anomalous tickers.

arXiv to BibTeX / arxiv citation generator / paper bibtex / LaTeX citation builder / academic citation lookup. Pulls a paper's title, authors, year, abstract, and DOI from the arXiv API and generates a properly-formatted BibTeX entry with an auto-derived cite key (or your own). Free public arXiv API. Pure XML parse — no upstream auth.

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

arXiv paper summarizer / research-paper TLDR. Fetches abstract via arXiv API + LLM-generated structured summary (TLDR, key findings, methods, limitations, so-what).

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.

Audio loudness normalizer (EBU R128 LUFS). Podcast / Spotify / YouTube target presets (-23 / -16 / -14). Two-pass dynamic mode. Returns hosted MP3.

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

Citation verifier / fact-check against URL / does-this-source-support-this-claim / hallucination detector. Fetches a source URL (HTML stripped, 100KB cap), and asks Venice claude-sonnet-4-6 whether a given claim is supported, contradicted, or absent. Returns verdict, confidence (0-1), and the strongest evidence quote when available.

Zero-shot text classifier. Caller supplies labels. Multi-label mode. Calibrated confidences + reasoning.

Text classifier / zero-shot classifier / category sorter. Caller supplies labels (2-25). Multi-label mode. Calibrated confidences + reasoning. Mistral powered.

Git commit message generator / Conventional Commits / AI commit-msg. Type, scope, subject, body, breaking_change flag. Ready for git commit -m.

SimHash / 64-bit content fingerprint / near-duplicate detection / dedup hashing / locality-sensitive hash. Pure-local 64-bit SimHash over token-level k-shingles (default k=3) using FNV-1a. Two SimHashes are 'close' (small Hamming distance) iff the underlying texts share many shingles. Returns hex + decimal forms plus token + shingle counts. Useful for content dedup pipelines, plagiarism detection, and bot-content clustering.

Verified contract source code / Etherscan source / contract ABI fetcher / Solidity source lookup. For any deployed contract on Ethereum, Base, Optimism, Arbitrum, or Polygon: returns is_verified, contract name, compiler version, parsed ABI, full source, license, optimizer settings, constructor args, and proxy implementation address.

Convert HTML to Markdown. Strips nav, scripts, ads, and other boilerplate. Preserves headings, lists, tables, code blocks, links, and images. Accepts raw HTML or a URL. Returns clean Markdown ideal for LLM context windows or RAG ingestion.

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.

Cron parser. Parses any 5 / 6 / 7-field cron expression or @yearly / @monthly / @weekly / @daily / @hourly macro and returns a plain-English explanation, frequency bucket, validation flag, and runs-per-day estimate. Same backend as cron-explain under a clearer slug.

CSV to ICS / CSV to iCal / calendar file generator / .ics builder / Google Calendar + Outlook + Apple Calendar import. RFC 5545 compliant VCALENDAR/VEVENT output. Auto-detects column mapping (summary, date, time, location, description) or accepts an explicit mapping. Handles all-day and timed events, configurable default duration, custom delimiters. Up to 1000 rows. Pure parser, no upstream API.

CSV to JSON / CSV to JSONL / CSV to NDJSON converter / TSV to JSON / spreadsheet to JSON / data pipeline preprocessor / LLM training-data prep. RFC 4180 parser. Type inference (booleans, integers, floats, ISO dates, null tokens). Configurable delimiter, quote char, header presence, column rename, drop columns, trim whitespace. Outputs newline-delimited JSON (jsonl), a JSON array (json), or column-oriented arrays (ndarray). Pure parser, no upstream API.

CVE lookup / vulnerability lookup / NVD record / CVSS scorer / vuln advisory fetch / exploit-known check / CWE class / patch-priority triage / Log4Shell-style record. Short alias of cve-lookup. Returns NIST NVD record with CVSS v3.1 + v2 vectors, severity, CWE, affected CPE list, references, public-exploit indicator with reference URLs, and a bounded exploitability summary with deterministic fallback. Federal public, no auth.

AI image descriptor / vision LLM. Modes: describe, alt_text (accessibility, ≤125 chars), OCR (extract visible text), tags (8-15 keywords), caption (single-sentence). Vision LLM powered.

Language detector / language identification. ISO 639-1 code, full name, confidence (0-1). Mixed-language detection with secondary languages list. 100+ languages.

PII detector / data leak scanner. Emails, phones, SSNs, credit cards, addresses, names, IPs, API tokens. Returns matches + risk_level. Optional redaction with [TYPE] tokens.

English dictionary / word definition / lookup word / pronunciation / part of speech / synonyms / etymology adjacent. Returns part-of-speech-grouped definitions with usage examples and per-sense synonyms, plus IPA phonetic and a pronunciation audio URL when available. Wraps the public Free Dictionary API — no auth, commercial-OK.

DMARC + SPF + DKIM email-authentication checker / mail-auth posture audit / spoofing-resistance grader / phishing-readiness scanner / domain email security score / dmarcian-style report / pre-send deliverability check. Reads the domain's DNS TXT records, parses each protocol's record (SPF mechanisms + qualifiers, DMARC tags p/sp/rua/ruf/pct/aspf/adkim, DKIM selectors with key bits and algorithm), and returns a 0-100 score, A-F grade, and per-finding human-readable reasons explaining the score.

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.

Domain availability / RDAP lookup / WHOIS replacement / domain registration checker / expiry date lookup. Returns is_registered, registrar, registration date, expiry date, days_until_expiry, and current EPP status flags 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.

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.

AI email writer / cold outreach / follow-up generator. Subject + body + salutation + sign-off. 7 tones × 10 email types (cold_outreach, follow_up, decline, reply, internal_update, thank_you, intro, request, apology, general). Length controls.

Embedding similarity / cosine similarity / semantic match / vector compare / are-these-strings-similar. Embeds two strings via Venice (default model: text-embedding-bge-m3) and returns the cosine similarity as a single float in [-1, 1]. Useful for paraphrase detection, dedup, and cheap retrieval routing.

ENS resolver / Ethereum Name Service lookup. Forward (vitalik.eth to address) and reverse (address to primary ENS) with text records (avatar, twitter, github, etc).

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.

Named entity extractor / NER. People, organizations, locations, dates, emails, URLs, phone numbers, monetary amounts. Mistral-powered.

Named entity recognition (NER) / entity extractor. Pulls people, organizations, locations, dates, emails, URLs, phone numbers, monetary amounts. Verbatim with context. Mistral powered.

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.

GitHub repo health score / open-source maintainability checker. 0-100 score + grade (abandoned/stale/okay/healthy/thriving). Commit activity, contributors, license, CI, tests. Plus LLM verdict.

GitHub stars history / star growth chart / repo popularity over time / trending tracker. Current star count plus a sampled cumulative-stars-vs-date series for any public GitHub repo. Walks 1-10 evenly-spaced pages of /stargazers using application/vnd.github.star+json so each sample carries a starred_at timestamp. Free public API, no auth (subject to GitHub's 60 req/h unauthenticated limit).

Hacker News search / HN search / yc-news / Algolia HN. Searches 30M+ Hacker News stories and comments. Filter by type (story/comment/poll), author, min points, ISO8601 date range; sort by relevance or recency. Returns title, author, points, comment count, URL.

Holiday calendar. Public holidays, bank holidays, and federal holidays for any country and year. ISO 3166-1 country codes. Returns date, local name, English name, type (public/observance/regional), and scope. Wraps the public Nager.Date API — no auth, commercial-OK.

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.

Convert HTML to Markdown. Strips nav, scripts, ads, and other boilerplate. Preserves headings, lists, tables, code blocks, links, and images. Accepts raw HTML or a URL — when given a URL the server fetches the page and runs the converter on the body. Returns clean Markdown plus title and char counts. Ideal for LLM context windows, RAG ingestion, and content archival.

AI text humanizer / GPT detector bypass. Strips LLM tells (em-dash overuse, formulaic transitions, 'delve', 'tapestry'). 4 tones.

AI image outpainting / image expansion. Bria Expand model. Generates realistic content beyond original borders. Set canvas size + original placement. Commercial-license model.

Image generate (fast/cheap) / text-to-image / AI art. SFW, sub-5s turnaround. Four tiers backed by curated $0.01 Venice models: 'fast' (z-image-turbo, default), 'creative' (chroma), 'anime' (wai-Illustrious), 'sd35' (venice-sd35). For top-tier quality use image-generate-pro ($0.10, Flux 2 Pro / Recraft / Seedream / Qwen Image 2 Pro) or image-generate-ultra ($0.30, Google nano-banana-pro / OpenAI gpt-image-2). Returns a permanent fal-hosted PNG URL.

Image translator. Translate text in any image — signs, menus, screenshots, photos of documents — by running vision-OCR plus Venice translation. Returns the detected source text plus the target-language translation. Optional preserve_layout mode keeps the original spatial arrangement.