listed
Literature Review Map · api.kadec0.xyz
Literature review map in one call. Give a seed paper (DOI, arXiv id, OpenAlex id, or PMID) or a topic query and get one structured result: the seed's references, its cited-by list (most-cited first), and semantically related work, deduplicated into one uniform table with title, authors, year, venue, DOI, and citation count. Collapses search, citation lookup, and related-paper discovery into a single call. Keyless.
https://api.kadec0.xyz/v1/author-search
Author and researcher profile search. An author name returns matching researchers with current affiliation, publication count, total citations, h-index and i10-index, and their most-cited papers — for author lookup, disambiguation, and citation-metrics. Keyless via OpenAlex.
https://api.kadec0.xyz/v1/congress-trades
US congressional stock trades. Stock transactions disclosed by members of the House and Senate under the STOCK Act — politician, ticker, amount, and date.
https://api.kadec0.xyz/v1/cve
CVE vulnerability lookup. Returns security vulnerability records by CVE id or keyword from the NIST National Vulnerability Database and GitHub Security Advisories, each with CVSS score, severity, CWE weakness class, affected products, and references, filterable by severity and source. For vulnerability triage and dependency risk checks. Keyless.
https://api.kadec0.xyz/v1/defi-tvl
DeFi TVL for protocols and chains. Returns total value locked per DeFi protocol or per chain via DefiLlama, with category, supported chains, and TVL change over time, filterable by category or chain. For DeFi protocol screening, chain-level TVL comparison, and tracking where liquidity is moving. Keyless.
https://api.kadec0.xyz/v1/dns-propagation
DNS propagation checker. Compares a DNS record across public resolvers (Google, Cloudflare, Quad9, OpenDNS) to spot propagation lag or split-horizon answers.
https://api.kadec0.xyz/v1/domain-info
Domain WHOIS and DNS lookup. Registrar, creation and expiry dates, nameservers, and full DNS records (A, AAAA, MX, NS, TXT, CNAME) for a domain.
https://api.kadec0.xyz/v1/email-validate
Email validation and email list cleaning. Checks each email address for RFC syntax, a live MX record lookup returning the real mail hosts, disposable-domain detection, role-account flags (info@, sales@, noreply@), and a free-provider flag, rolled into a per-address ok/risky/invalid verdict with reasons. Batch up to 25 email addresses per call. Domain-level DNS only, no SMTP mailbox probe. Keyless.
https://api.kadec0.xyz/v1/fda
FDA recalls and adverse events. Drug, device, and food recall and adverse-event records from openFDA with classification, recalling firm, and reason.
https://api.kadec0.xyz/v1/gas-oracle
Ethereum gas price oracle. Returns the current Ethereum gas price as an EIP-1559 base fee plus priority-fee estimates across five confidence tiers, all in gwei, so an agent can price a transaction before it signs one. Ethereum mainnet only. Keyless, via Blocknative.
https://api.kadec0.xyz/v1/geocode
Geocoding and reverse geocoding. Converts an address or place name to latitude/longitude, or coordinates back to an address.
https://api.kadec0.xyz/v1/github
GitHub data. Repository stats, user profiles, and code-search results (stars, forks, language, topics, issues) via the GitHub REST API.
https://api.kadec0.xyz/v1/hackernews
Hacker News feed. Top, new, and best front-page stories plus full-text story search — titles, scores, comment counts, and author for tech and startup news.
https://api.kadec0.xyz/v1/interest-by-region
Google Trends interest by region for a keyword. Returns the subregional breakdown of Google Trends search interest inside a country - by state, province, or region - each ranked 0-100 relative to the strongest region. For regional demand mapping, geo targeting, and finding where a keyword over-indexes before spending on it.
https://api.kadec0.xyz/v1/lit-review
Literature review map in one call. Give a seed paper (DOI, arXiv id, OpenAlex id, or PMID) or a topic query and get one structured result: the seed's references, its cited-by list (most-cited first), and semantically related work, deduplicated into one uniform table with title, authors, year, venue, DOI, and citation count. Collapses search, citation lookup, and related-paper discovery into a single call. Keyless.
https://api.kadec0.xyz/v1/market-sentiment
Market fear & greed index. Aggregated investor sentiment from CNN Fear & Greed, the crypto Fear & Greed index, and the VIX volatility gauge.
https://api.kadec0.xyz/v1/nutrition
Food nutrition lookup. Calories, macros, and micronutrients for any food from the USDA FoodData Central database.
https://api.kadec0.xyz/v1/paper-details
Citation lookup and reference list for a paper. Given a DOI, arXiv id, OpenAlex id, or PMID, returns its references (the works it cites) and its cited-by list (recent works that cite it), plus full metadata and citation count — for bibliography building and citation lookup. Keyless via OpenAlex and Semantic Scholar.
https://api.kadec0.xyz/v1/paper-fulltext
Full text and open-access PDF retrieval for a paper. Given an arXiv id, DOI, OpenAlex id, PMID, or PMCID, returns the readable body split into sections (introduction, methods, results) plus the open-access PDF location: arXiv via ar5iv, biomedical via Europe PMC, OA locations via OpenAlex for the rest. The 'now read it' call after a paper search. Keyless.
https://api.kadec0.xyz/v1/papers
Academic and scientific paper search API. Search research papers and scholarly literature across arXiv, PubMed, OpenAlex, Crossref, and Semantic Scholar in one call, deduplicated into a ranked result set: title, authors, year, venue, abstract, citation count, DOI, and direct PDF link. Query by keyword or restrict to one source; filter by year range; sort by relevance, recency, or citations. Keyless.
https://api.kadec0.xyz/v1/permits
Building permit records. Construction and building permits across Chicago, NYC, Seattle, and San Francisco — type, status, address, cost, and issue date.
https://api.kadec0.xyz/v1/recalls
Consumer product recalls. A normalized multi-agency recall feed spanning FDA, CPSC, and NHTSA — product, reason, company, classification, and severity.
https://api.kadec0.xyz/v1/related-papers
Literature review and related-paper discovery. Given a seed paper (arXiv id, DOI, or OpenAlex id) or a topic query, returns semantically similar and recommended scholarly papers to expand a reading list or systematic review, via Semantic Scholar recommendations with an OpenAlex related-works fallback. Keyless.
https://api.kadec0.xyz/v1/related-queries
Google Trends related queries for a keyword. Returns the searches people run alongside a keyword in a given country: top queries scored 0-100 relative to each other, and rising queries with their percentage growth. Google Trends keyword expansion for SEO keyword research, content planning, and spotting breakout search demand early.
https://api.kadec0.xyz/v1/related-topics
Google Trends related topics for a keyword. Returns the topics and named entities associated with a keyword in a given country, as top topics scored 0-100 relative to each other and rising topics with percentage growth, each carrying its entity type. Google Trends topic discovery for market research and content planning.
https://api.kadec0.xyz/v1/scrape
Scrape any web page to clean markdown. A keyless web scraper that converts a single URL into LLM-ready markdown plus structured metadata (title, headings, links, word count), so an agent can read a page without running a browser. A per-call alternative to Firecrawl's scrape endpoint, with no API key and no account. Single page per call, not a site crawler.
https://api.kadec0.xyz/v1/sec-edgar
SEC filings full-text search. Searches SEC EDGAR filings - 10-K, 10-Q, 8-K, and every other form type - by keyword, company name, ticker, or CIK, with date-range filtering, returning company, form type, filing date, accession number, and a direct document link. For SEC filings research and disclosure monitoring. Keyless.
https://api.kadec0.xyz/v1/serp
Web search results (SERP). Keyless web search returning ranked title, URL, and snippet for a query — with locale/region targeting, freshness filters (past day, week, month, year), pagination, a news mode that adds publish date and source, and selectable backend engine (auto rotation, or pin Brave, Yahoo, or Yandex).
https://api.kadec0.xyz/v1/serp-batch
Bulk web search: up to 5 search queries in a single call, each returning ranked title, URL, and snippet, with the same locale, freshness, and news filters as the single-query web search. One paid call instead of five for research fan-out.
https://api.kadec0.xyz/v1/serp-multi
Multi-engine web search (metasearch). One search query fanned out across 2-3 search engines (Brave, Yahoo, Yandex) with results deduplicated by URL and merged by reciprocal-rank fusion: consensus ranking across engines instead of one engine's bias, with per-engine rank attribution on every result.
https://api.kadec0.xyz/v1/serp-read
Web search plus page reading in one call: answer with sources. Runs a web search, scrapes the top results, and returns the ranked search results together with each page's content as clean LLM-ready markdown, so an agent gets the SERP AND the underlying text without a second round of scrape calls. Per-page fetch errors are reported honestly per URL.
https://api.kadec0.xyz/v1/smart-search
Smart, auto-routed research paper search. A broad field term is grounded against the OpenAlex taxonomy and returned as a coherent field cluster; a natural-language question runs hybrid retrieval over OpenAlex and Semantic Scholar with reciprocal rank fusion and a SPECTER2 embedding rerank. The response exposes the routing decision, and each paper carries title, authors, year, venue, citation count, DOI, and a relevance score. Keyless.
https://api.kadec0.xyz/v1/stablecoins
Stablecoin supply data. Returns circulating supply for stablecoins broken down across chains via DefiLlama, filterable by peg type and by collateral mechanism, so you can compare fiat-backed against crypto-backed and algorithmic stablecoins. For stablecoin market share, depeg watch, and chain-level supply tracking. Keyless.
https://api.kadec0.xyz/v1/stackoverflow
Stack Overflow Q&A. Programming question and answer search with scores, accepted-answer flags, tags, and answer bodies via the Stack Exchange API.
https://api.kadec0.xyz/v1/token-price
Crypto token price and market data. Returns the live price of one or many tokens by coin id or ticker symbol, in a chosen vs-currency, with market cap, 24-hour volume, and 24-hour price change. For crypto price lookups, portfolio valuation, and market data feeds. Keyless, via CoinPaprika.
https://api.kadec0.xyz/v1/topic-search
Field and topic search for research papers. Give a broad field name or short phrase (like 'crispr' or 'exercise science') and get a coherent, taxonomy-grounded seed cluster: the field is resolved against the OpenAlex topics taxonomy, then the cluster returns the top-cited plus recent-influential works, each with title, authors, year, venue, citation count, and DOI. Solves the broad-term entry problem dense semantic search fails on. Keyless.
https://api.kadec0.xyz/v1/trend
Google Trends interest over time for a keyword. Returns Google Trends search interest as a dated series indexed 0-100: weekly points across the default past 12 months, daily points for 30- and 90-day windows, and windows from the past hour back to 2004, with optional country targeting. For keyword trend analysis, search demand seasonality, and SEO keyword research.
https://api.kadec0.xyz/v1/trending-coins
Trending crypto coins. The coins most searched on CoinGecko right now, with rank, price, and market-cap rank.
https://api.kadec0.xyz/v1/usgs-quakes
Real-time earthquake feed. Recent seismic events from USGS with magnitude, location, depth, and tsunami flag, filterable by magnitude, time, and radius.
https://api.kadec0.xyz/v1/weather
Weather forecast and air quality for any location worldwide. Returns current conditions plus a 16-day daily weather forecast - temperature highs and lows, precipitation, and wind - alongside air-quality readings including AQI, PM2.5, PM10, and ozone, for any latitude and longitude. Daily forecast resolution. Keyless, via Open-Meteo.
https://api.kadec0.xyz/v1/website-audit
Instant website SEO audit. On-page SEO, performance, and accessibility snapshot for any URL — title, meta tags, headings, links, image alt, load time, and an issues list with score.
https://api.kadec0.xyz/v1/whois-bulk
Bulk WHOIS lookup. Registrar, dates, and nameservers for up to 10 domains in a single batch call.
https://api.kadec0.xyz/v1/yield-pools
DeFi yield and APY across pools. Returns the top yield-farming pools via DefiLlama with current APY, base and reward APY split, TVL, chain, and project, filterable by chain, project, symbol, stablecoin-only, minimum TVL, and minimum APY. For yield discovery and comparing APY across protocols. Keyless.
This listing is taken from the catalogues and the provider named above. The price is what that source advertised.
