slugify

Free public-domain books on "Jews": browse the catalogue's works tagged with that Library of Congress subject (226 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct epub/txt/html download links. Add words to narrow by title or author. Re-verified daily. $0.01 per page of 20.

Free public-domain books on "Legends": browse the catalogue's works tagged with that Library of Congress subject (197 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct epub/txt/html download links. Add words to narrow by title or author. Re-verified daily. $0.01 per page of 20.

Free public-domain books on "Literature": browse the catalogue's works tagged with that Library of Congress subject (358 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct epub/txt/html download links. Add words to narrow by title or author. Re-verified daily. $0.01 per page of 20.

Free public-domain books on "Literature, Modern": browse the catalogue's works tagged with that Library of Congress subject (284 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct epub/txt/html download links. Add words to narrow by title or author. Re-verified daily. $0.01 per page of 20.

Feed freshness: fetches an RSS/Atom feed (auto-discovers it from a page URL if needed), returns the newest item's title, link and age in hours, item count, average posting interval over the feed, and whether the feed looks stale (no item in 30 days). Also reports items new since your previous call (kept 90 days). $0.01 per check.

Subdomain finder from certificate-transparency logs: every hostname under a domain that has appeared in public TLS certificates (crt.sh), deduplicated and sorted, up to 500. Attack-surface mapping, asset discovery and competitor research. $0.01 per domain.

7-day daily weather forecast for a place: high and low temperature, precipitation sum and probability, max wind, sunrise/sunset and condition per day, with the resolved location. Free Open-Meteo data. $0.01 per lookup.

JWT decoder (no signature verification, nothing stored): header (alg, kid, typ), payload claims, human-readable iat/exp/nbf, whether the token is expired or not yet valid, seconds until expiry, and warnings such as alg=none, missing exp, or very long lifetime. $0.01 per token.

Public holidays for a country and year: date, local and English name, whether it is nationwide, and counties where regional, from the free Nager.Date API (100+ countries). Scheduling and SLA calculations. $0.01 per query.

SQL formatter: upper-cases keywords, breaks the statement into SELECT/FROM/JOIN/WHERE/GROUP BY/ORDER BY clauses, one column per line, indents AND/OR, and reports the statement type, tables referenced and whether it looks like a write (INSERT/UPDATE/DELETE/DROP). Works on most ANSI SQL dialects. $0.01 per statement.

Everything free by an author: all catalogued public-domain books, audiobooks and films for an author name across Gutenberg, LibriVox and Internet Archive, grouped by kind with download links. Handles 'Jane Austen' or 'Austen, Jane'. $0.01 per author.

Free public-domain books on "Ireland": browse the catalogue's works tagged with that Library of Congress subject (405 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct epub/txt/html download links. Add words to narrow by title or author. Re-verified daily. $0.01 per page of 20.

Free public-domain books on "English fiction": browse the catalogue's works tagged with that Library of Congress subject (759 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct epub/txt/html download links. Add words to narrow by title or author. Re-verified daily. $0.01 per page of 20.

Free books in Japanese: public-domain and free-licensed Japanese-language works from Project Gutenberg and Internet Archive with download links (epub, txt, html, scans), most popular first; add words to search within Japanese titles, authors and subjects. Re-verified daily. $0.01 per page of 20.

Free public-domain books on "Clergy": browse the catalogue's works tagged with that Library of Congress subject (241 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct epub/txt/html download links. Add words to narrow by title or author. Re-verified daily. $0.01 per page of 20.

Free books in Italian: public-domain and free-licensed Italian-language works from Project Gutenberg and Internet Archive with download links (epub, txt, html, scans), most popular first; add words to search within Italian titles, authors and subjects. Re-verified daily. $0.01 per page of 20.

Free public-domain books on "Brothers": browse the catalogue's works tagged with that Library of Congress subject (207 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct epub/txt/html download links. Add words to narrow by title or author. Re-verified daily. $0.01 per page of 20.

Subject Alternative Names of the newest certificate for a domain from certificate-transparency logs: every hostname the current cert covers, wildcard flags, issuer, validity window and days left. Reveals sibling services, staging hosts and shared certs. $0.01 per domain.

Certificate issuance history from certificate-transparency logs: every certificate ever logged for the domain (up to 200), grouped by issuer with first/last issuance dates, current-valid count, and the most recent 20 entries (issuer, common name, not-before/not-after). Spot rogue issuers, renewal cadence and CA changes. $0.01 per domain.

Browse free works by subject or genre (Library of Congress subject headings and LibriVox genres): 'detective and mystery stories', 'physics', 'french poetry', 'documentary'. Returns matching public-domain books, audiobooks and films with download links. $0.01 per browse.

Change watch for ssl certificate expiry: runs the check and compares it with the result from your previous call for the same url (kept 90 days), returning the current answer, changed true/false, exactly which fields changed with before/after values, and when it was last seen. Call it on a schedule to be told when ssl/tls certificate expiry check for a hostname changes. $0.02 per check.

Bulk email verification: up to 20 addresses in one $0.01 call. For each: syntax, MX presence, disposable and role-address flags, free-provider flag, mail provider and a deliverable verdict with reason, plus a summary count. Email list cleaning at a twentieth of the per-address price.

Bulk domain trust score: up to 10 domains in one $0.01 call, each with the 0-100 established/legitimacy score, top reasons, domain age, mail and HTTPS presence. Rank or filter a list of domains for fraud screening and lead scoring at a tenth of the per-domain price.

Email authentication and deliverability report for a domain in one call: SPF (with -all check), DMARC policy strength, DKIM presence across common selectors, MTA-STS, BIMI and MX, combined into a 0-100 score with an A-F grade and plain-English findings. Vendor vetting and sender-setup audits. $0.05 per domain.

From an email address to its company: runs the full domain-intel report on the address's domain (registration, DNS, homepage title and description, social profiles, tech stack, trust score) and flags free/disposable providers. Lead enrichment from a single email. $0.05 per address.

Lead card: a one-screen company summary for a CRM from just a domain: company name, one-line description, website, industry hints from keywords, size hints (domain age, tech stack breadth, SaaS vendors), social handles, contact emails, mail provider, location hints and a trust score. $0.05 per lead.

Keyword extraction from text: the top terms and bigrams by frequency with stopwords removed. Tag, route or index agent-generated content. $0.01 per call.

JSON to CSV: converts an array of objects (nested keys flattened with dots, arrays joined) into RFC-4180 CSV with a header row, returning the CSV text, row and column counts and the columns detected. $0.01 per call.

Regex extractor: runs a JavaScript regular expression over text and returns all matches with capture groups and positions, the match count, and an error message if the pattern is invalid. $0.01 per call.

Language detection for text you send: one of 12 European languages plus Japanese, Chinese, Korean, Arabic and Russian by script, with a confidence score. Route text to the right model or translator. $0.01 per call.

Password strength estimate: entropy in bits, character classes used, length, common-pattern penalties (dictionary words, sequences, repeats, dates), an estimated crack time at 10 billion guesses per second and a verdict. Nothing is stored or logged. $0.01 per check.

User-Agent parser: browser and version, operating system, device class (desktop/mobile/tablet/bot), mobile flag and bot name for crawlers (Googlebot, GPTBot, ClaudeBot, bingbot and 20+ more). Log analytics and bot filtering. $0.01 per string.

URL parser: scheme, host, port, path segments, query parameters (multi-valued), fragment, origin, registrable domain, whether it is secure/IP/localhost, and a normalised form. $0.01 per URL.

Roman numeral converter both ways: an integer (1-3999) to Roman numerals or a Roman numeral to an integer, with validation. $0.01 per call.

Bulk URL status check: up to 20 URLs in one $0.01 call. For each: up or down, HTTP status, latency, redirect count and final URL, with up/down totals. Dead-link checking and multi-site monitoring at a twentieth of the per-URL price.

On-page SEO quick audit for a single URL with a 0-100 score: title and meta-description presence and lengths, H1 count and heading order, canonical tag (self-referencing?), meta robots/noindex, Open Graph and Twitter cards, image alt-text coverage, internal/external link counts, word count, lang attribute, viewport, and structured data presence. Returns the issues list ranked by weight. $0.05 per

Hostname to IPs with hosting attribution: all IPv4 and IPv6 addresses for a hostname, and for each IPv4 the ASN, network owner, country and detected cloud/hosting provider. Where is this site hosted, in one call. $0.01 per hostname.

Bulk WHOIS/RDAP lookup: up to 10 domains in one $0.01 call, each with registrar, registration date, expiry date, nameservers and domain age in days. Batch due diligence and expiry monitoring at a tenth of the per-domain price.

Check whether an IPv4 address belongs to a CIDR block. Give '<ip> in <cidr>' (or comma separated). Firewall rule validation, allowlist checks and log filtering. $0.01 per check.

DNS TTL audit: the cache time-to-live for A, AAAA, MX, NS and TXT records with plain-English notes on which are too high for a safe migration and which are unusually low. Plan DNS cutovers with confidence. $0.01 per domain.

Which SaaS vendors a company uses, from DNS TXT verification tokens: Google Workspace, Microsoft 365, Apple, Facebook, Atlassian, Stripe, DocuSign, Adobe, Zoom, Slack, HubSpot, Salesforce, Shopify, OpenAI, Anthropic, Tailscale and more. Sales intelligence and tech-stack research without touching the website. $0.01 per domain.

IDN / punycode converter and homograph check: converts between Unicode and ASCII (xn--) domain forms, lists the scripts used, flags mixed-script labels and confusable characters (Cyrillic а vs Latin a) that indicate homograph phishing risk. $0.01 per domain.

TLD information: the registry's RDAP server from the IANA bootstrap file, whether the TLD zone is DNSSEC-signed, and its nameserver count. Understand any domain extension before registering or investigating. $0.01 per TLD.

IP blacklist (DNSBL) check: is an IPv4 address listed on Spamhaus ZEN, SpamCop, Barracuda, SORBS, UCEPROTECT or PSBL? Returns each listing with its return codes. Mail-server reputation and abuse triage. $0.01 per IP.

Role-address detection: is an email a generic mailbox (info@, support@, sales@, billing@, admin@, noreply@...) rather than a person? Returns the role, its category (support, sales, technical, legal, no-reply) and whether it is likely a personal address. CRM hygiene and outreach targeting. $0.01 per address.

Email normalizer: lowercases, strips plus-tags, applies provider rules (Gmail ignores dots, googlemail.com = gmail.com, outlook/hotmail/yahoo/proton/fastmail +tags) and returns a canonical form for deduplicating contact lists and detecting duplicate signups. $0.01 per address.

Can this domain be spoofed? Checks whether SPF and DMARC together actually block forged mail: missing DMARC, p=none, pct below 100, SPF +all or ?all, or no SPF at all mean attackers can send email as the domain. Returns a risk level with reasons. Phishing-risk assessment. $0.01 per domain.

Gravatar check: whether an email address has a public Gravatar avatar and profile (via the SHA-256 hash, no data sent to third parties beyond the hash), with the avatar and profile URLs. Enrich contacts with a real avatar. $0.01 per address.

Announced IP prefixes for an ASN: IPv4 and IPv6 ranges currently announced in BGP (from RIPEstat, free), with counts and samples. Build allowlists, map a company's network footprint or attribute traffic. $0.01 per ASN.

Extract every email address from a block of text: deduplicated, lowercased, syntax-validated, with a per-domain count. Turn scraped pages, documents or logs into a clean contact list. $0.01 per call (text up to 50 KB).