| Solana Mint Risk Preflight Via X402 API Solana mint risk preflight via x402: holder-concentration proxy, creator context when covered, coverage and freshness. Use for one mint before launch-dossier spend. Not a rug verdict, price feed, or Birdeye/Nansen substitute. Evidence only — beta. | solanahub.de | - | $30,000.00 | listed |
| Sort lines Sort the lines of a text. order: asc (default) | desc | numeric. unique:true removes duplicates; ci:true is case-insensitive. | agent402.tools | - | $0.001 | listed |
| Space Data API Complete structured package for one illustrated classic of early science/engineering (1588-1748): verified public-domain scan, full metadata, curated description, full-text OCR link, IIIF manifest, and page-image URL template. Works: Ramelli machines 1588, Agricola De re metallica 1621, Hooke Micrographia 1665, Newton Principia 1687 & Opticks 1730, Euler Introductio 1748. Param: ?id=<work_id> | onrender.com | - | $0.02 | listed |
| Space Data API Direct IIIF image URLs (multiple resolutions) for a specific page of a public-domain illustrated classic, with work context and provenance. Params: ?work=<work_id>&leaf=<n> | onrender.com | - | $0.01 | listed |
| Spend Permission Auditor 🆕 Base Account spend permissions let an app or agent spend a scoped, recurring allowance from a wallet — the primitive behind autonomous agent payments on Base. This reconstructs a wallet's ACTIVE spend permissions from onchain approve/revoke events and flags the dangerous ones: unlimited allowance, no expiry, unrecognized spender. The Base-native, agent-era drain check that ERC-20 approval tools can't see. | com.tr | - | $0.05 | listed |
| Spot API Live on-chain spot prices for every token on the Hyperliquid DEX (HYPE, PURR, and hundreds more), quoted in USDC: mid/mark price, previous-day price, 24h USD and base volume, circulating and total supply, and market cap — sorted by 24h volume. Spot, not derivatives: for funding/open interest use /api/v1/perps; for major-coin fiat prices use /api/v1/crypto. From x402stock | x402stock.xyz | - | $0.02 | listed |
| Squawk Alerts API Returns live counts of tracked aircraft, active emergency squawks by type (hijack, radio failure, general emergency), and per-flight position data — monitor global airspace emergencies in real time. | forgemesh.io | - | $0.02 | listed |
| StableBrowser Create a new browser session ($0.10). Optionally pass sessionId to resume an existing Browserbase session. Returns sessionId (Browserbase session ID) to use for all subsequent calls. | stablebrowser.dev | - | $0.10 | listed |
| StableCrypto List all chains with TVL | stablecrypto.dev | - | $0.01 | listed |
| StableCrypto List all stablecoins with mcap and peg data | stablecrypto.dev | - | $0.01 | listed |
| StableEnrich Google Aerial View - Look up a previously rendered flyover video by address or videoId | stableenrich.dev | - | $0.01 | listed |
| StableFinance Stock screener: filter by fundamental criteria. Screener tickers are not guaranteed on every downstream endpoint — before paid calls, check the target endpoint's /tickers list (e.g. /api/prices/snapshot/tickers, /api/financial-metrics/snapshot/tickers). Upstream invalid/unsupported tickers return 400/404 and are still charged. | stablefinance.dev | - | $0.02 | listed |
| StableFinance Supported central bank codes (FED, ECB, BOJ, etc.). | vercel.app | - | $0.02 | listed |
| StableFinance Real-time single-ticker price quote. Invalid or unsupported tickers return upstream 400/404; check /api/company/facts/tickers or endpoint-specific /tickers lists before batching. | stablefinance.dev | - | $0.02 | listed |
| StableFinance Tickers covered by /company/facts. | stablefinance.dev | - | $0.02 | listed |
| StableFinance Pull specific line items across a list of tickers. | stablefinance.dev | - | $0.02 | listed |
| StableFinance Company metadata: name, exchange, sector, industry, SIC, location. | stablefinance.dev | - | $0.02 | listed |
| StableJobs Preview jobs by filters (step 1). Call before job-collect. Page 1–5, 20/page, $0.10/page. Returns id, title, location, company_name, created, _score; pagination; next.collect when results exist. No description, salary, or URLs — use job-collect for full records. | stablejobs.dev | - | $0.10 | listed |
| StableNinja Fetch Google Play Store reviews for an Android app. | stableninja.dev | - | $0.01 | listed |
| StableNinja Fetch Google Play Store top grossing games. | stableninja.dev | - | $0.01 | listed |
| StableNinja Get Waze alerts and traffic jams in a bounding box or radius. | stableninja.dev | - | $0.01 | listed |
| StableNinja Search Amazon products by keyword. | stableninja.dev | - | $0.01 | listed |
| StableProducts Search the persisted Wirecutter recommendation database by product type, pick name, review title, category, and model tokens. Search is lexical today; pass concise, spelling-corrected product/category nouns instead of vague natural-language intent. | stableproduct.dev | - | $0.01 | listed |
| StableProducts Get Channel3 v1 product detail by product_id. | stableproduct.dev | - | $0.01 | listed |
| StableProducts List active Channel3 price tracking subscriptions. | stableproduct.dev | - | $0.01 | listed |
| StableProducts List Channel3 brands with cursor pagination. | stableproduct.dev | - | $0.01 | listed |
| StableSocial Scrape Creators · Kwai — Profile | stablesocial.dev | - | $0.06 | listed |
| StableSocial Scrape Creators · Facebook — Facebook Group Posts | stablesocial.dev | - | $0.06 | listed |
| StableSocial Scrape Creators · Spotify — Track | stablesocial.dev | - | $0.06 | listed |
| StableStudio Get a client token for direct upload to Vercel Blob | stablestudio.io | - | $0.01 | listed |
| StableTickets Search Ticketmaster events by keyword, date, location, venue, attraction, or classification | stabletickets.dev | - | $0.01 | listed |
| Stablebase List all Stablebase projects owned by the calling wallet. | stablebase.dev | - | $0.01 | listed |
| Stablecoin Premium API USDT/USDC premium on Korean exchanges vs official USD/KRW rate — fund flow indicator | printmoneylab.com | - | $0.002 | listed |
| Stablecoins API Stablecoin circulating supply, price and peg deviation (DefiLlama). Body: { symbol? }. | vercel.app | - | $0.01 | listed |
| Stack Billing Generate a finished, professional invoice PDF from JSON — recipient and line items in, a ready-to-send application/pdf out. Layouts: standard, legal, creative. Totals and tax are computed server-side so the numbers always add up. First payment auto-creates a wallet profile (token + API key in response headers); returning wallets get sequential invoice numbering and can save a sender letterhead. USD only. | stackbill.app | - | $0.10 | listed |
| Stack Overflow Q&A Search Stack Overflow Q&A. Programming question and answer search with scores, accepted-answer flags, tags, and answer bodies via the Stack Exchange API. | kadec0.xyz | - | $0.01 | listed |
| Standings API Current WNBA standings with wins, losses, win percentage, and conference rank. | fanfare.run | - | $0.001 | listed |
| State Synthesis API State Synthesis - Synthesizes market state from multiple data sources | blackswan.wtf | - | $0.03 | listed |
| Statistics Descriptive statistics for an array of numbers: count, sum, mean, median, mode, min, max, range, variance, stddev, and percentiles. | agent402.tools | - | $0.001 | listed |
| Stats API Dataset metadata for this Japanese (JP) corporate-number API — how many corporations are loaded and which prefectures are covered. | agentic-jp.com | - | $0.001 | listed |
| Stats summary Compute the full descriptive-stats panel for an array of numbers in one call: count, sum, mean, median, mode, stddev (sample), variance, min, max, range, q1, q3, IQR. Beats calling 12 separate tools when you already have the array in front of you. | agent402.tools | - | $0.001 | listed |
| Stelar Digital Crypto market regime classification (choppy / uptrend / downtrend / high-volatility) for SOL, BTC, ETH, XRP, DOGE, LTC, ADA, or XLM, plus a grid-trading suitability verdict. Computed live from 1h klines, a 30-day volatility baseline, and EMA trend detection — the same classifier that steered our production grid bot before we retired it 2026-08-16. For agents deciding whether a pair is grid-tradeable right now. | stelardigital.com | - | $0.03 | listed |
| Stock Trends Market Intelligence Compares two user-supplied portfolios using Stock Trends decision scoring, alignment, and regime context. | stocktrends.com | - | $1.25 | listed |
| Stock quote with company profile Stock quote with company profile | toon.haus | - | $0.001 | listed |
| Stockfish Cloud Evaluation For A Fen Position API Stockfish cloud evaluation for a FEN position. Returns depth, evaluation, and principal variation(s) when Lichess has the position cached. | vercel.app | - | $0.005 | listed |
| Structured Extraction API Structured extraction: give a JSON Schema plus a URL or raw text, get back JSON matching the schema. | surewhynot.app | - | $0.005 | listed |
| Summary API Aggregated market sentiment label (strong_bearish → strong_bullish) with a normalized score, computed from LLM-scored news over the window. One-number mood read for an agent that just needs the verdict, not the individual articles. | swaphunt.dev | - | $0.003 | listed |
| Suverse Kb Pageviews Article API Daily pageview counts for an English Wikipedia article over a date range via the Wikimedia metrics REST API, no key. One record per day with timestamp and view count. For agents measuring topic popularity trends. | suverse.io | - | $0.06 | listed |
| Suverse Met Search API Search The Metropolitan Museum of Art open collection by keyword, no key. Returns matching object ids and a total count. For AI agents building art discovery and culture content. | suverse.io | - | $0.06 | listed |
| Suverse Mlb Standings API Official MLB standings for a season from MLB StatsAPI across the American and National leagues: each team with wins, losses, win percentage, games back, division rank. For AI agents answering playoff race questions and building baseball dashboards. | suverse.io | - | $0.07 | listed |