Academic paper search across 250M+ works via OpenAlex (free, no key). Returns top papers with title, authors, year, DOI, citation count, open-access status, and primary research topic. Covers all disciplines: AI/ML, medicine, physics, economics, law, biology, and more. Supports relevance, citation-count, and recency sorting; open-access filtering; and year-range constraints. Use for literature review, prior-art search, citation building, or finding the seminal papers in any field.

AI-synthesized intelligence report — aggregates Hacker News, OpenAlex academic papers, Reddit, arXiv preprints, and DuckDuckGo in parallel, then distills into a structured report: executive summary, key findings, market sentiment, emerging trends, and recommendations. Pass ?query=your+topic for targeted research (e.g. 'AI agent payment protocols 2025'). Omit query for a default AI agents & autonomous systems report. $0.200/call — 20% below nearest competitor.

Witty AI roast of any target — person, company, product, code snippet, or concept. Returns 3-5 sentences of sharp, clever humor. Style: dry (default), savage, sarcastic, or gentle. 75% below anchor-x402.com/v1/roast.

Fetches and parses any public RSS 2.0 or Atom 1.0 feed. Returns feed metadata (title, description, language, last updated) and structured items (title, link, 400-char summary, author, published date, GUID). Useful for monitoring news, blog posts, GitHub release notes, Reddit RSS, arXiv category feeds, or security advisories.

OFAC SDN sanctions screening — checks whether a person, company, vessel, or aircraft appears on the US Treasury Specially Designated Nationals list. Returns match score, sanctions program(s), and entity type. Covers ~19,000 entries including RUSSIA-EO14024, SDGT, IRAN, DPRK, TCO, and 30+ programs. Use for payment compliance, KYB/KYC, AML checks, and counterparty due diligence.

Real-time SEC EDGAR filing lookup by ticker or CIK. Returns company profile plus recent filings (form type, date, description, EDGAR URL). Supports 8-K (material events), 10-K/10-Q (earnings), Form 4 (insider trades), DEF14A (proxy), and all other EDGAR form types. Authoritative US government data, no API key, updated within minutes of filing.

SEC EDGAR Form 4 insider trading data for any US public company — shows recent insider buys, sells, awards, and exercises with shares, price, and post-transaction ownership. No API key. EDGAR primary source.

S&P 500 sector rotation: relative performance of all 11 GICS sectors (XLK XLF XLE XLV XLI XLY XLP XLB XLRE XLU XLC) vs SPY benchmark. Returns 1D, 5D, 1M, and 3M absolute and relative returns, a rotation signal per sector (LEADING, CATCHING_UP, FALLING_BEHIND, LAGGING), and 1M leadership ranking. Parameterizable: sort by any timeframe. Free Yahoo Finance source, no API keys. Use for sector allocation, macro-regime interpretation, or screening rotation momentum.

Daily FINRA consolidated short-sale volume for any US equity ticker: short volume, total volume, and short ratio (short/total) for the last N trading days. Useful for detecting crowded short positions and short-squeeze setups. Free FINRA CDN upstream, no API key.

Returns public profile data for any social platform account. Pass a profile URL (platform auto-detected) or platform + username. Supports GitHub, Reddit, HackerNews, Twitter/X, npm, and Open Graph fallback for any URL. Returns name, bio, follower/karma counts, creation date, and platform-specific metrics. Priced at $0.004 — 20% below comparable endpoints.

Cross-platform social momentum for any topic. Queries Reddit (recent top posts), Hacker News (recent stories), and GitHub (active repos) in parallel and returns a composite momentum score (0–100) plus raw results from each platform. Single call replaces three separate searches. Use before committing to research, writing, or trading: 'is this topic gaining traction right now?' No API keys required.

Rug-pull and risk scanner for Solana SPL tokens. Input a mint address; returns mint/freeze authority status, top-10 holder concentration, liquidity depth, token age, and a composite safety score (0–100, higher = safer) with risk level (safe/moderate/risky/danger) and green/warning flags. Uses Solana public RPC and DexScreener — no API keys required. Useful for agents vetting a memecoin or new token before trading, swapping, or recommending.

Solar irradiance analysis and 7-day forecast for any location. Returns GHI (global horizontal irradiance), DNI (direct normal), DHI (diffuse), peak sun hours, cloud cover, sunrise/sunset, and panel yield estimate for a 1 kW system. Useful for rooftop solar feasibility, agricultural planning, EV charging optimization, and energy market analysis. Free upstream: Open-Meteo (no API key, no rate limits). Undercuts stableenrich.dev/api/google-maps/solar by 31%.

Returns today's (or a given date's) sports games with team win-loss records, venue, scheduled time, and live score. Supports MLB, NBA, NFL, NHL, NCAAF, NCAAB. Sourced from ESPN public API — no key required. $0.005/call. Use before prediction-markets or sports-content tasks to get accurate team context.

Live and recent sports scores for NBA, NFL, MLB, NHL, MLS, EPL, La Liga, Bundesliga, Serie A, Champions League, and more. Returns game status, current score, venue, period/clock, and broadcast info. Uses ESPN's free public scoreboard API. Optional date filter (YYYYMMDD) for historical or upcoming schedule.

Inspects the TLS/SSL certificate of any HTTPS host. Returns validity window (not-before, not-after, days remaining), issuer (CA name, organization), subject (CN), Subject Alternative Names, SHA-256 fingerprint, serial number, and an expiry status (HEALTHY/OK/WARNING/CRITICAL/EXPIRED). Useful for monitoring certificate expiry, auditing TLS configuration, and verifying SAN coverage.

Real-time depeg monitor for top USD stablecoins (USDT, USDC, DAI, USDS, and others ranked by market cap). Returns current price, peg deviation %, depeg status (PARITY / MILD_DEPEG / MODERATE_DEPEG / SEVERE_DEPEG), supply trend, and a composite alert level (GREEN / YELLOW / ORANGE / RED). Sourced from DeFiLlama public API — no key required, updates every call. Useful for DeFi risk management, collateral health checks, and pre-trade regime detection.

Stack Overflow question search. Returns top-scored questions matching the query with answer counts, accepted-answer status, tags, and body excerpts. Filter by tags (comma-separated). Sort by votes, relevance, activity, or creation date. Useful for developer agents debugging errors or researching library patterns.

US equity snapshot + Limitless prediction market sentiment in one call. Returns current price, intraday change, volume, 52-week range for any NYSE/NASDAQ ticker, plus any active Limitless prediction markets matching the ticker keyword (direction bets, price level markets). Single-call alternative to separate limitless-markets + us-stock-price calls. Free upstream — no API key required. $0.015/call.

Returns historical OHLCV (open/high/low/close/volume) candlestick data for a stock, ETF, or index. Supports intervals from 1-minute to monthly and ranges from 1 day to max history. Use for chart analysis, trend detection, and quantitative backtesting. $0.010/call — free upstream, no API key.

Returns current US equity prices for up to 5 tickers in one call — STRC, AMD, MSTR, SLV, USO, or any NYSE/NASDAQ symbol. Each call returns price, change %, volume, day range, and 52-week range per ticker. Sourced from Yahoo Finance public data, no API key. A single $0.018 call replaces 3-5 separate blockrun.ai queries that total $0.066–$0.220.

Technical analysis signal for any US equity, ETF, or crypto. Returns RSI(14), MACD(12/26/9), Bollinger Bands(20), volume trend, directional posture (STRONG_BUY/BUY/NEUTRAL/SELL/STRONG_SELL), and key price levels. Richer output than comparable services at $0.090. Free upstream: Yahoo Finance (equities), CoinGecko (crypto).

Timezone intelligence using the IANA database (418 zones) built into Node.js. Returns current local time, UTC offset, DST status, and the long timezone name for any IANA timezone. Can also convert an ISO timestamp to one or more target timezones. Useful for scheduling agents, global operations, and time-aware data enrichment. Zero external API calls — instant response.

Returns top holders for any Ethereum ERC-20 token (by contract address), with concentration metrics. Includes each holder's share%, human-readable balance (with decimal conversion), and whale analysis. Reports: top-10 concentration, whale count (>1% holders), Herfindahl-Hirschman Index for concentration risk. Use to assess token distribution health, identify institutional-grade holders, or screen for rug-pull risk before entering a position.

Returns upcoming US Treasury auction schedule (Bills, Notes, Bonds, TIPS, FRNs) from TreasuryDirect.gov. Filter by security type and look-ahead window. Shows auction date, issue date, term, offering amount, coupon rate, and reopening status. Official government data, no API key.

Returns current US Treasury yield curve at 3M, 5Y, 10Y, and 30Y nodes from CBOE interest-rate indices (free, no API key). Includes 10Y-3M spread and curve shape classification. Essential for DCF discount rates, bond pricing, and recession signal monitoring.

Real-time Twitter/X data without an API key. lookup_user returns full profile (followers, bio, verification) for any @username. search_tweets returns 10 recent tweets matching a keyword or filter query. x402-settled upstream.

Given a transaction hash and chain, returns a decoded breakdown: sender, recipient, ETH value transferred, gas used, transaction fee, decoded method name (transfer/approve/swap/deposit/etc.), ERC-20 token transfer details if applicable, block number, block timestamp, and a one-sentence agent-readable summary. Supports Ethereum (default), Base, Polygon, and Arbitrum mainnet. Uses free public JSON-RPC nodes — no API key required, results in ~1-2s.

Converts between 100+ units across 12 categories: length, weight, temperature, volume, speed, area, energy, pressure, data, time, angle, frequency. Handles mixed-case inputs (km, KM, Km all work). Returns the converted value plus all common units in the same category. Zero external calls — pure math.

Historical OHLCV bars for any US stock, ETF, or index. TradingView-compatible resolution (D, W, M, 60, 15, 5, 1). Pass Unix timestamps for from/to. Matches blockrun.ai at $0.001/call — same price, no API key required. Use us-stock-price for live quotes; equity-technicals for indicators.

Returns current US equity price and intraday metrics (change %, volume, day high/low, 52-week range) for any NYSE/NASDAQ ticker. Sourced from Yahoo Finance public data — no API key, live during market hours. $0.005/call.

Real-time global earthquake events from USGS. Filter by magnitude, depth, location radius, or time window. Returns location, magnitude, depth, PAGER alert, and USGS event URL. Free primary source — no API key.

Analyze any image URL using GPT-4o-mini vision. Returns structured analysis based on the mode: describe (full description), ocr (text extraction), chart (data/trend extraction), ui (interface analysis), identify (object/subject ID), or qa (answer a specific question about the image). Input must be a publicly accessible image URL (JPEG, PNG, GIF, WebP). $0.050/call.

Returns the native token balance (ETH, POL, BNB) for any EVM wallet address. Supports Ethereum, Base, Polygon, Arbitrum, Optimism, and BSC. Includes optional USD value. $0.002/call — 60% below comparable market rate. Free upstreams: DRPC + CoinGecko, no API key required.

Composite credit score (0–100) for any EVM wallet. Aggregates Ethereum and Base transaction count, account balance, USDC holdings, and multi-chain footprint into a single trustworthiness score with tier label (PRIME / ESTABLISHED / ACTIVE / SPARSE / DORMANT). Use before sending payments, routing agent transactions, or assessing counterparty risk in automated workflows. Priced 46% below x402node.dev equivalent.

Risk screening for EVM wallet addresses. Returns a 0–100 risk score and individual flags: sanctions (OFAC/other), phishing activity, cybercrime, money laundering, darkweb transactions, mixer usage, stolen funds, fake KYC, and 12 more categories. Sourced from GoPlusLabs (free, no key, chain_id optional — defaults to checking cross-chain). Use before sending funds to an unknown address, before accepting a payment, or when validating a counterparty wallet in a DeFi workflow. Distinct from evm-toke

Queries the Internet Archive Wayback Machine for historical snapshots of any public URL. Returns the closest archived snapshot URL, capture timestamp (ISO 8601), and HTTP status code at the time of capture. Optionally lists up to 10 recent snapshots to trace how a site evolved over time. Covers 800B+ archived pages spanning 27+ years of web history. Useful for due diligence (when was this domain first archived?), fact-checking, competitor tracking, and retrieving archived regulatory or financia

Current weather conditions and 7-day daily forecast for any location worldwide. Input a city name, coordinates, or address. Returns temperature (°C), humidity, wind speed, precipitation, weather code, and a forecast with high/low temps and precipitation totals. Free upstream: Open-Meteo (no API key, no rate limits). Useful for DeFi agents tracking energy markets (cold → heating demand → gas prices), agricultural commodity prediction markets, or natural disaster risk assessment for on-chain insu

Active NOAA weather alerts for any US state — tornado warnings, flash flood watches, hurricane warnings, blizzard advisories, heat alerts, and 80+ other NWS event types. Real-time data from api.weather.gov; no API key. Filterable by state, event type, or severity. Returns event, severity, certainty, urgency, affected areas, onset/expiry, headline, and protective action instructions. Complements weather.js (forecasts) — this cap covers active emergencies.

Historical daily weather (temperature, precipitation, wind, sunshine) for any location from 1940 to ~5 days ago. Uses ERA5 reanalysis data. Accepts city name or lat,lng. Returns per-day values plus period summary stats. Useful for seasonal analysis, anomaly detection, and climate-context enrichment.

Returns content-change signals for any public URL: ETag, Last-Modified, Content-Length, and Content-Type via HTTP HEAD. Falls back to GET + SHA-256 of the first 32 KB when the server returns no cache markers. Store the snapshot and re-call periodically to detect changes. Useful for monitoring competitor pricing, news, regulatory filings, or any public page.

Extract structured company intelligence from any public website. Returns company name, description, logo, emails, phones, address, founded date, social links (Twitter/LinkedIn/GitHub/etc.), and raw OpenGraph + schema.org/Organization data. Pure HTML extraction — no external APIs. $0.003 hedge against orbisapi web-scrape-company at $0.005.

Extracts all hyperlinks from any public webpage. Returns href URLs normalized to absolute URLs with visible link text. Filters out javascript:, mailto:, data: schemes. Optionally restrict to same-domain links, deduplicate, or include #anchor links. Useful for crawlers, sitemap builders, link graph analysis, and content audits.

Polymarket whale intelligence for a given proxy wallet address. Returns recent prediction-market trades (market title, outcome, side, size in USDC, price, timestamp) and current open positions (title, size, avg price, current value, unrealized PnL). Infers whale tier (whale/shark/dolphin/minnow) from trade sizes. Use for copy-trading signal generation, market-sentiment cross-reference, or on-chain agent behavior profiling. Free upstream: Polymarket public data API.

Wikipedia article lookup and search. Given a search query, returns the top matching Wikipedia articles with title, plain-text extract (~800 chars), description, thumbnail URL, page URL, and last-modified date. Use for rapid factual lookup, entity enrichment, concept explanation, or pre-flight research on any topic. No API key required.

World Bank open data — 1600+ development indicators for 200+ countries. Returns most-recent values and 5-year trend for any indicator by country. Covers GDP, population, inflation, unemployment, FDI, debt, exports, CO₂, life expectancy, Gini, internet penetration, ease of doing business, and more. Accepts ticker-style aliases (gdp, inflation, unemployment) or full WB indicator codes. Sourced from api.worldbank.org — free, no key required. Use for country risk, macro comparisons, policy analysis

Market intelligence for any x402 endpoint or operator wallet. Returns settlement volume, unique payer count, price range, reputation tier, activity window, and endpoint description — drawn from 4.1M+ Base mainnet settlements in the Stall's proprietary on-chain dataset. Use before routing agent spend, vetting a counterparty operator, or benchmarking competitor pricing. No external API. Covers 80,000+ operators across 10+ days of live traffic.

Returns active DeFi yield farming pools sorted by 30-day average APY. Sourced from DeFiLlama (free, no key). Each pool includes protocol, chain, symbol, TVL, current APY, 30-day mean APY, impermanent-loss risk, and stablecoin flag. Filter by chain, protocol, minimum TVL, minimum APY, or stablecoin-only pools. Use for portfolio yield research, pre-trade DeFi reconnaissance, or capital allocation decisions.

YouTube video metadata: title, author, description (2000-char cap), view count, duration, upload date, thumbnail URL, tags (20 max), and categories. Accepts any YouTube URL format or bare 11-character video ID. Uses yt-dlp for full metadata with YouTube oembed as fallback. $0.012/call.