x402watch

53,113 paid endpoints are listed. 31,940 answered a real 402 at the last check.

Every x402 endpoint on the Coinbase Bazaar and x402scan, probed unpaid every six hours. A listing tells you the price a seller wrote down. This tells you whether the endpoint is reachable, whether it charges what it declared, and how fast it answers. Ranked by an assay score out of 100.

Last check 2026-10-05 15:08 UTC · 53,113 probed

31,940 answering 40215,003 down5,345 rejecting825 no paywall1,219 price drift
  1. 90flat-rate-llm.kikoribera03.workers.dev/v1/web/statusChecks one URL without downloading the page: HTTP status, the full redirect chain hop by hop with the code of each, the final URL, whether it ends on HTTPS, content type and size, and the security headers the server sends. Built for going through a list of links one at a time. No API key, no account.$0.005 Base241 ms2 payers83% up
  2. 90flat-rate-llm.kikoribera03.workers.dev/v1/util/vatValidates one EU VAT number offline: country prefix, the format that country uses, and the published check-digit algorithm where one exists. Says explicitly whether the check digits were verified or only the format. Deterministic, no network call. Built for cleaning a list of companies one at a time.$0.005 Base194 ms2 payers83% up
  3. 90api.stocktrends.com/v1/stim/historyHistorical ST-IM forward return distribution series for a symbol. Use /v1/meta/stim for ST-IM provenance, base-period context, and interpretation limits.$0.0075 Base1682 ms2 payers100% up
  4. 90api.stocktrends.com/v1/prices/historyHistorical weekly price series for a Stock Trends symbol.$0.0075 Base1463 ms2 payers100% up
  5. 90serp402.com/api/v1/searchGoogle search for agents, paid per call: web, news, images, videos, places, shopping and Scholar, all returned in one shape with canonicalised URLs, duplicates removed and dates normalised to ISO. Direct answers and knowledge-panel facts included when Google has them. USD 0.005 per call in USDC — no API key, no account, no subscription, no minimum. Results are retrieved through Serper (serper.dev), which is not affiliated with or endorsed by Google.$0.005 Base1071 ms2 payers100% up
  6. 90x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/countUse when an agent needs x402 market totals. Returns catalogue size and 30-day totals: services, calls, unique paying wallets, with the snapshot hash$0.001 Base1410 ms2 payers100% up
  7. 90agents.alphaquantlabs.ai/v1/propertyAQL PropertyCheck: Gold Coast property due diligence for buyers, renters and AI agents; one paid lookup returns the full available package; not a valuation$0.9789 Base1258 ms2 payers100% up
  8. 90foundry-par007-machine-revenue-mainnet.inference-chip-index.workers.dev/v2/official/usgs-recent-earthquakesFind recent USGS earthquake observations by time window and minimum magnitude, with event identifiers, source times and revision status.$0.01 Base1127 ms2 payers100% up
  9. 90aayatai.com/translateTranslate text between 100+ languages with AI. POST JSON {"text": "...", "target": "French"} (language name or code such as fr, de, es, ja, zh, ar). Optional "source" language, otherwise it is detected. Up to about 12,000 characters of English (4,000 of Chinese/Japanese) per call. Keeps formatting such as Markdown and line breaks. Failed calls are not charged.$0.01 Base515 ms2 payers91% up
  10. 90toll402.dev/v1/provenanceHuman or synthetic? Provenance evidence for a URL: archive first-capture date, domain age, authorship markup, curated source tier, AI disclosures and stylometric signals, aggregated into a calibrated 0-100 human-origin score with every piece of evidence. Add deep=true for an LLM stylometric assessment.$0.01 Base144 ms2 payers83% up
  11. 90http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run/marketplace/listing-stateNormalize public marketplace listing activity, offer, seller, condition and quantity hints. eBay credentials are optional configuration; no buying, bidding or seller mutation is supported. Base mainnet USDC$0.003 Base462 ms2 payers91% up
  12. 90x402.agentindex.world/cryptoLive spot prices for crypto coins (BTC, ETH, SOL, ...) in USD or another fiat, with 24h change. Accepts tickers or CoinGecko ids. Try GET /crypto/sample.$0.001 Base1002 ms2 payers100% up
  13. 90api.402shelf.com/products/searchSearch live products across online retailers by keyword and price range. Returns product names, prices, retailers, and direct purchase links. Use when an agent needs current shopping options or price-filtered product recommendations.$0.001 Base1076 ms2 payers100% up
  14. 90sigma-api-oracle.tailae0cf3.ts.net/v1/market/scanSigma SCOUT: compact read-only market opportunity evidence for autonomous agents.$0.02 Base Sepolia1531 ms2 payers100% up
  15. 90agents.dexl.io/v1/tools/site-crawlCrawl a website: fetch a page, follow the links inside the same host and return every page it reached, within a page budget you set. For reading documentation, a product catalogue or a changelog in one paid call instead of many.$0.01 Base1755 ms2 payers100% up
  16. 90jobs.rqmtechnologies.com/x402/buyer-jobs/openqasm3-preflight-v1Problem: Parse, normalize, and assess OpenQASM 3 before downstream execution. Input: JSON with source. Result: go, no-go, or unsupported verdict, normalized source, warnings and evidence. Limits: Local software evidence only; 3 verification qubits; 65536 source bytes.$0.01 Base1130 ms2 payers100% up
  17. 90api.solgiery.com/v1/random/bytesGenerate length cryptographically random bytes, encoded as lowercase hexadecimal. length defaults to 32 and may be 1 to 4096. Uses the server OS CSPRNG. Returns consumed bytes for reproducible calculation, not proof of their origin. Price: 0.007 USDC per request, including the bounded batch.$0.007 Base1152 ms2 payers100% up
  18. 90api.agentstools.dev/derivs/oiOpen interest for a perpetual asset across decentralized venues (Hyperliquid, dYdX v4): per-venue open interest in coins and in USD notional (via each venue's mark or oracle price), the total aggregate USD open interest and each venue's share. One call, normalized across protocols.$0.01 Base1294 ms2 payers100% up
  19. 90twitr.sh/api/tools/x_timelineFetch a user's X/Twitter timeline — their tweets, replies, likes, media posts, or mentions — plus follower and following lists, and per-tweet engagement lists (who replied, quoted, retweeted, or favorited). Billed per item returned. The building block for monitoring what an account posts or ranking accounts by activity.$0.12 Base1181 ms2 payers100% up
  20. 90api.dripmetrics.ai/market/summaryDripMetricsAI (https://dripmetrics.ai/) BTC market summary: one x402 call returns deterministic microstructure signals and metrics (including raw, baseline, and excess VPIN) computed from the live trade tape and Deribit chain, plus a concise AI-written explanation. Hedged historical tendencies only - no price targets or trade recommendations.$0.25 Base1171 ms2 payers100% up
  21. 90www.x402pulse.dev/v1/whalesPolymarket whale trades: the largest recent buys and sells across all markets above a size you choose, with trader name, outcome, price and USD size. 5- and 15-minute crypto markets filtered out. Pair with /v1/wallet to check whether a whale is any good.$0.001 Base1002 ms2 payers100% up
  22. 90www.x402pulse.dev/v1/skilled-whalesSmart-money whale trades on Polymarket: recent large trades by skilled (Solid or Sharp) traders only, each tagged with the trader's skill score, edge over the odds paid, return and specialty. Separates informed whales from big gamblers.$0.001 Base1298 ms2 payers100% up
  23. 90flat-rate-llm.kikoribera03.workers.dev/v1/weather/forecastDay-by-day forecast for any point on Earth, up to nine days out, from the Norwegian Meteorological Institute's official model rather than a commercial aggregator. Each day carries its minimum and maximum temperature, total precipitation, strongest wind and the midday symbol, together with the exact model run and the institute's declared units, so a planning decision can cite where the number came from.$0.01 Base145 ms2 payers83% up
  24. 90api.vextorium.com/liquidaciones-pagoDeFi liquidations read on-chain from Aave v3 on Base, Ethereum, Arbitrum, Optimism and Polygon: total USD liquidated, event count, breakdown by network, collateral and debt asset, and latest events with explorer links. Window 1-24h, optional asset filter.$0.01 Solana834 ms2 payers92% up
  25. 90api.vextorium.com/validar-iban-pagoIBAN validation (ISO 13616 mod-97 and per-country length, SEPA membership; for Spain also the national CCC check digits and bank name). Computed locally, IBAN is not stored.$0.003 Solana545 ms2 payers92% up
  26. 90api.vextorium.com/gas-red-pagoLive gas price on Base or Ethereum (gwei, base fee, priority fee) plus estimated USD cost of an ETH transfer, an ERC-20 transfer and a DEX swap, including Base L1 data fee. Priced with the Chainlink ETH/USD oracle.$0.003 Solana655 ms2 payers92% up
  27. 90api.vextorium.com/divisas-bce-pagoOfficial European Central Bank euro reference exchange rates (about 30 currencies) and currency conversion between any two of them, with reference date.$0.003 Solana679 ms2 payers92% up
  28. 90api.vextorium.com/precio-oraculo-pagoTamper-resistant price from Chainlink Data Feeds on Base (ETH/USD, BTC/USD, USDC/USD, or any Chainlink aggregator address), with update time and staleness in seconds.$0.004 Solana831 ms2 payers92% up
  29. 90api.vextorium.com/saldos-wallet-pagoWallet balances on Base or Ethereum in one call: native ETH plus WETH, USDC, USDT, DAI and cbBTC/WBTC (and optionally any extra ERC-20), with approximate USD value from Chainlink oracles.$0.005 Solana823 ms2 payers92% up
  30. 90api.vextorium.com/info-token-pagoERC-20 token profile read directly from the contract on Base or Ethereum: name, symbol, decimals, total supply, bytecode size and whether it is an upgradeable EIP-1967 proxy (with implementation address).$0.005 Solana825 ms2 payers92% up
  31. 90api.vextorium.com/fear-greed-pagoCrypto Fear & Greed Index (0-100) with classification. Data source: Alternative.me (attribution included in the response).$0.005 Solana605 ms2 payers92% up
  32. 90api.vextorium.com/comprobar-salud-pagoAPI/URL health check: up or down, HTTP status, latency, and whether the endpoint is a valid x402 paid endpoint.$0.005 Solana601 ms2 payers92% up
  33. 90api.vextorium.com/cotizacion-dex-pagoOn-chain swap quote on Base from Uniswap v3 QuoterV2 across all fee tiers (0.01%, 0.05%, 0.3%, 1%): output amount, unit price, best pool and gas estimate. Accepts symbols (WETH/ETH, USDC, USDT, DAI, cbBTC) or token addresses. Read-only, no swap executed.$0.008 Solana746 ms2 payers92% up
  34. 90api.vextorium.com/precio-cripto-pagoCrypto price in USD and EUR from on-chain sources only: Chainlink oracles (BTC, ETH, USDC) or Uniswap v3 quotes on Base (USDT, DAI or any Base token address); EUR via ECB rate.$0.01 Solana745 ms2 payers92% up
  35. 90api.vextorium.com/validar-nif-pagoSpanish tax ID validation (DNI/NIF, NIE and company CIF) with check-digit verification. Computed locally; the ID is not stored.$0.003 Solana432 ms2 payers92% up
  36. 90api.vextorium.com/validar-bic-pagoBIC/SWIFT code validation and parsing: bank, country, location and branch codes, test-code flag.$0.003 Solana485 ms2 payers92% up
  37. 90api.vextorium.com/horario-eeuu-pagoUS stock market clock (NYSE/Nasdaq): open, closed, pre-market or after-hours now (or at a given time), holiday reason, early closes, next open/close and upcoming holidays. Key for 24/7 tokenized stocks.$0.003 Solana552 ms2 payers92% up
  38. 90api.vextorium.com/horario-bolsas-pagoWorld stock exchanges clock: status (open, closed, lunch break), local time, today's session and next open for NYSE, Toronto, London, Euronext, Xetra, Madrid, Zurich, Tokyo, Hong Kong, Shanghai, India and Sydney.$0.003 Solana543 ms2 payers92% up
  39. 90api.vextorium.com/dias-habiles-pagoSpanish business-day calculator: count business days between dates or add N business days, using Spain's national public holidays.$0.003 Solana467 ms2 payers92% up
  40. 90api.vextorium.com/verificar-tokenizada-pagoAnti-scam check for tokenized stocks on Solana: tells whether a token mint was issued by an official issuer (xStocks/Backed, Ondo) via its mint authority, or is a POSSIBLE IMITATION posing as one.$0.004 Solana392 ms2 payers92% up
  41. 90api.vextorium.com/empresa-fundamentales-pagoUS listed company fundamentals from public SEC filings (XBRL): last quarters and years of revenue, net income, diluted EPS, operating cash flow, assets, liabilities, equity, cash, dividends and shares outstanding.$0.006 Solana372 ms2 payers92% up
  42. 90flat-rate-llm.kikoribera03.workers.dev/v1/evm/token-priceSpot price of any ERC20 read straight from the deepest Uniswap V3 pool against USDC, on Base, Ethereum, Polygon, Arbitrum or Optimism. Returns the pool address, fee tier, liquidity, sqrtPriceX96, tick and block, so the number can be audited instead of trusted. No aggregator and no API key: the source is the chain itself. Via eth_call.$0.005 Base43 ms2 payers83% up
  43. 90flat-rate-llm.kikoribera03.workers.dev/v1/crypto/sanctionsChecks one crypto address against the OFAC SDN list published by the US Treasury, across 16 currencies including Ethereum, Bitcoin, Tron and USDT. A hit returns the actual list entry - sanctioned entity, its type and its sanctions programmes - not a risk score. Exact matching only, never fuzzy. Every answer carries the publication date of the list snapshot. No API key, no account.$0.01 Base54 ms2 payers83% up
  44. 90www.x402pulse.dev/v1/health/drug-safetyFDA drug safety snapshot for any drug (brand or generic name): total adverse event reports, share serious and fatal, most-reported side effects and the quarterly report trend from FDA FAERS. Reports are not proof of causation. Data, not medical advice.$0.001 Base1514 ms2 payers100% up
  45. 90gate-network.matsutake-lab.workers.dev/v1/gates/twilio.messages.create/preflightTwilio SMS and messaging send preflight. Validate a Twilio Messages.create payload before sending SMS/MMS or other supported messages. Returns static failures, warnings, and unknowns without sending the message.$0.005 Base1135 ms2 payers100% up
  46. 90api.vextorium.com/v1/us-treasury-yield-curveLatest US Treasury par yield curve (1 month to 30 years), change in basis points versus N days ago, 10y-2y and 10y-3m spreads and inversion flag. Official US Treasury data (public domain).$0.004 Base174 ms2 payers83% up
  47. 90api.vextorium.com/sol-dominio-pagoResolve a Solana Name Service .sol domain to its owner wallet, read directly on-chain (NFT-tokenized domains resolve to the NFT holder).$0.003 Solana358 ms2 payers91% up
  48. 90api.vextorium.com/sol-dominio-inverso-pagoPrimary (favourite) .sol domain of a Solana wallet, read on-chain and checked that the wallet still owns it.$0.003 Solana310 ms2 payers91% up
  49. 90api.vextorium.com/x402-inspector-pagoCheck any x402 endpoint before paying, without paying: price in USD per network, asset (flags anything that is not official USDC), pay-to address and whether it is a contract, authorization timeout, Bazaar metadata, and risk alerts with a clear verdict.$0.004 Solana419 ms2 payers91% up
  50. 90api.vextorium.com/boe-sumario-pagoSpanish Official State Gazette (BOE) daily summary: every item of a given day with section, department and official links, filterable by section (e.g. civil service exams 'oposiciones', appointments, public procurement), department or title keywords.$0.004 Solana319 ms2 payers91% up
  51. 90api.vextorium.com/revisar-firma-pagoExplain an EIP-712 typed-data signature before signing it: x402/EIP-3009 payment authorizations, EIP-2612 permits, Permit2 and Seaport orders. Flags unlimited allowances, long validity and non-official tokens, and returns the exact hash to compare with your wallet.$0.005 Solana412 ms2 payers91% up
  52. 90api.vextorium.com/adjudicaciones-pagoSpanish public contracts awarded to a company, or by a contracting authority, from official PLACSP open data: winners, awarded amounts (VAT excluded), dates and official links. Competitive intelligence for B2B agents.$0.01 Solana396 ms2 payers91% up
  53. 90api.vextorium.com/sol-tx-pagoSolana transaction status by signature: confirmed / failed / processing, slot, time, fee in SOL, signers, programs invoked and token balance changes.$0.003 Solana389 ms2 payers92% up
  54. 90api.vextorium.com/sol-cuenta-pagoSolana account inspector: whether it exists, type (wallet, token account, mint, program, program data), SOL balance, owner program and data size.$0.003 Solana307 ms2 payers92% up
  55. 90api.vextorium.com/evm-utilidades-pagoEVM developer utilities: keccak256 hash, function selector from a signature, EIP-55 checksum address and wei/gwei/ether conversion.$0.003 Solana445 ms2 payers92% up
  56. 90api.vextorium.com/calculadora-il-pagoImpermanent loss calculator for Uniswap v2 (full range) and v3/v4 concentrated ranges: IL vs holding, out-of-range flag and final token mix.$0.003 Solana325 ms2 payers92% up
  57. 90api.vextorium.com/bloque-info-pagoLatest block on an EVM chain: number, hash, time, age in seconds, transaction count, gas used % and base fee.$0.003 Solana428 ms2 payers92% up
  58. 90api.vextorium.com/bce-historico-pagoHistorical ECB euro reference exchange rate for any date since 1999 and conversion between any two published currencies.$0.003 Solana437 ms2 payers92% up
  59. 90api.vextorium.com/validar-email-pagoEmail validation: syntax, domain MX records and disposable-domain flag. Sends no email; the address is not stored.$0.004 Solana380 ms2 payers92% up
  60. 90api.vextorium.com/sol-saldos-pagoSolana wallet balances: SOL plus every SPL and Token-2022 token held (mint, amount, decimals), with USD value for USDC/USDT.$0.004 Solana321 ms2 payers92% up
  61. 90api.vextorium.com/precio-divisa-pagoCrypto price in any ECB currency (EUR, GBP, JPY, CHF...): on-chain USD price (Chainlink or Uniswap v3) converted with ECB reference rates.$0.004 Solana338 ms2 payers92% up
  62. 90api.vextorium.com/sol-token-pagoSolana SPL token profile and risk signals: supply, decimals, mint and freeze authorities (can the issuer mint more or freeze accounts?) and Token-2022 extensions.$0.005 Solana417 ms2 payers92% up
  63. 90api.vextorium.com/pool-uniswap-pagoUniswap v3 pool state on Base for a token pair: pool address per fee tier, spot price, tick, active liquidity and token reserves.$0.006 Solana354 ms2 payers92% up
  64. 90locus.report/api/locus-nei-emissions-nearbyEPA National Emissions Inventory facility and pollutant rows near an address for agents reviewing distance-ranked tonnage. Bounded summary or detailLevel=full facility-pollutant matrix. Periodic inventory estimates, not monitoring, exposure, or a burden score. Charge-free when no facility rows resolve.$0.01 Base2955 ms2 payers100% up
  65. 90dartapi.ljaysk.com/v1/eventsKorean corporate disclosure (DART) event stream, cursor-based delta. All filings, classified with importance score.$0.002 Base1366 ms2 payers100% up
  66. 90hyperliquid-x402.rajdeep-dutta-in.workers.dev/marketHyperliquid perpetual market data for AI agents — returns mark price, oracle price, funding, open interest, and best bid/ask for any listed perpetual asset.$0.01 Base Sepolia1241 ms2 payers100% up
  67. 90api.thetrustlayer.xyz/reviewer/:addressReviewer quality lookup. Returns quality score and review history for a wallet address that has left ERC-8004 feedback.$0.001 Base1079 ms2 payers100% up
  68. 90darrylbots.com/api/agent-article-martingale-mirageDarrylbots paid early access: Drift, Spread, and the Martingale Illusion, Chapter 4$0.001 Base1048 ms2 payers100% up
  69. 90signals.edge.report/v1/token-riskToken honeypot / security risk check before buy or approve. Input ERC20 contract + chain. Returns verdict avoid|caution|ok, is_honeypot, sell/buy tax, blacklist, owner powers. Use for honeypot detection, scam token screening, rug check, token security on Base Ethereum BSC Arbitrum Optimism Polygon.$0.001 Base1165 ms2 payers100% up
  70. 90red-breeze-8b8c.keenanbooker83.workers.dev/verify-citationVerify whether a cited source supports an exact factual claim$0.01 Base1704 ms2 payers100% up
  71. 90fetchharbor.benlab.download/scrapeFetch one public HTTP(S) URL for research, extraction, or agent workflows. Returns the final URL, upstream status, content type, and decoded content. Private, local, metadata, and reserved destinations are blocked; redirects are revalidated and response size and duration are bounded.$0.01 Base1263 ms2 payers100% up
  72. 90gas-price-comparator.pdfextractapi.workers.dev/compareCompare live gas prices and estimated transfer cost across major EVM chains.$0.01 Base1010 ms2 payers100% up
  73. 90stillosdigitalholdings.com/bazaar-v2/grade-strategyStillOS Edge-Gate — grade a settled strategy track record: fail-closed REAL_EDGE|REGIME_LUCK|NEGATIVE_EV|INSUFFICIENT_DATA verdict, out-of-sample + fee/slippage adjusted, Ed25519-signed receipt. Backed by a $10 on-chain correctness bond, up to $1 slashable per proven-wrong verdict -- verify at /notary/bond, dispute at /notary/dispute.$0.05 Base1013 ms2 payers100% up
  74. 90api.dripmetrics.ai/metrics/large-trade-shareDripMetricsAI (api description at https://dripmetrics.ai/) provides on-demand market microstructure and risk metrics for agents and developers. Agents can pay per request via x402 and receive structured JSON metrics without subscriptions or API keys. Large Trade Share measures the share of traded volume attributable to large trades. Discovery examples use the latest 30m window.$0.05 Base1160 ms2 payers100% up
  75. 90dev.gavedu.com/x402/candlesCrypto market data bundle: BTC/ETH OHLCV candles (Coinbase) with pre-computed EMA10/EMA30, RSI14 and trend/range/chop regime label per request — one call replaces fetch + indicator math.$0.02 Base1321 ms2 payers100% up
  76. 90fiatdock.com/s/svc_4fed2ffb-54d5-45cb-8df7-91c680a8fee9Pay-per-call: Signal Sprint Base USDC Balance$0.005 Base1501 ms2 payers100% up
  77. 90numtheory.openverbs.com/v1/totientEuler's totient φ(n) — the count of integers in [1, n] coprime to n — for a positive integer ≤ 10^15 (it is computed from the prime factorization).$0.004 Base577 ms2 payers97% up
  78. 90math.openverbs.com/v1/variablesParse an expression and return the free variables it references, without evaluating it — so an agent can discover which inputs a formula needs before supplying values. A syntax error is a clean 400.$0.004 Base539 ms2 payers97% up
  79. 90finance.openverbs.com/v1/loanCompute the level monthly payment, total paid and total interest of a fully-amortizing loan. Handles a 0% rate. Set schedule=true to also return the full month-by-month amortization table.$0.004 Base515 ms2 payers97% up
  80. 90finance.openverbs.com/v1/interestGrow a principal by simple or compound interest over a number of years. Compound interest uses compoundsPerYear compounding periods (default 12, monthly).$0.004 Base540 ms2 payers97% up
  81. 90finance.openverbs.com/v1/future-valueFuture value of a present sum and/or a level annuity, given a per-period rate and number of periods. Set dueAtBeginning=true for an annuity-due (payments at the start of each period).$0.004 Base511 ms2 payers97% up
  82. 90distribution.openverbs.com/v1/normalNormal distribution with optional mean (default 0) and standard deviation sd (default 1). `function` selects the density (pdf), cumulative distribution (cdf) or quantile / inverse-CDF.$0.004 Base467 ms2 payers97% up
  83. 90distribution.openverbs.com/v1/binomialBinomial distribution with `trials` (n ≥ 0, ≤ 1e6) and success `probability` (0..1). `function` selects the mass (pmf), cumulative distribution (cdf) or quantile / inverse-CDF.$0.004 Base465 ms2 payers97% up
  84. 90combinatorics.openverbs.com/v1/permutationsNumber of ordered arrangements of r items from n, nPr = n!/(n-r)!. Requires r ≤ n and r ≤ 10000.$0.004 Base570 ms2 payers97% up
  85. 90combinatorics.openverbs.com/v1/multinomialMultinomial coefficient (k1+k2+…)! / (k1! k2! …) — the number of ways to partition n = Σki items into labelled groups of the given sizes. The sum must be ≤ 20000.$0.004 Base548 ms2 payers97% up
  86. 90combinatorics.openverbs.com/v1/factorialExact factorial n! for 0 ≤ n ≤ 20000, returned as a decimal string with its digit count.$0.004 Base543 ms2 payers97% up
  87. 90combinatorics.openverbs.com/v1/combinationsBinomial coefficient nCr = n!/(r!(n-r)!), the number of unordered r-subsets of n. Requires r ≤ n and min(r, n-r) ≤ 10000.$0.004 Base533 ms2 payers97% up
  88. 90astro.openverbs.com/v1/seasonDetermine the astronomical season for a date, based on the Sun's apparent ecliptic longitude (0°=March equinox, 90°=June solstice, …). Defaults to the northern hemisphere; pass `hemisphere` to flip.$0.004 Base416 ms2 payers97% up
  89. 90astro.openverbs.com/v1/moon-phaseCompute the Moon's phase name, age in days since the last new moon and illuminated fraction (0..1) for a UTC date/time. Uses the mean synodic month (29.53 days).$0.004 Base403 ms2 payers97% up
  90. 90astro.openverbs.com/v1/julian-dateCompute the astronomical Julian Date (JD, fractional, epoch noon 1 Jan 4713 BC) and Modified Julian Date (MJD = JD − 2400000.5) of a UTC instant. Unlike `calendar`'s integer Julian Day Number, this carries the time-of-day fraction.$0.004 Base427 ms2 payers97% up
  91. 90agents.daedalusdevelopmentgroup.com/v1/reputation/leaderboardDDG agent-payable service request$0.01 Base1171 ms2 payers100% up
  92. 90agents.daedalusdevelopmentgroup.com/v1/landing-page-conversion-diffDDG agent-payable service request$0.01 Base1178 ms2 payers100% up
  93. 90market.datapackvibe.com/x402/assistant-game-open-23-d2-audioWeb Audio cue module: open-23-d2: Reusable synthesized collect/win cues, browser sound demo and preset cue schedule. No recorded music or third-party audio assets. Preset open-23-d2; configurable title, seed and accent. Source files, not hosted gameplay. One of 100 presets across 10 shared generators. 0.01 USDC includes one editable game module or map bundle.$0.01 Base1439 ms2 payers100% up
  94. 90market.datapackvibe.com/x402/assistant-game-open-23-d1-audioWeb Audio cue module: open-23-d1: Reusable synthesized collect/win cues, browser sound demo and preset cue schedule. No recorded music or third-party audio assets. Preset open-23-d1; configurable title, seed and accent. Source files, not hosted gameplay. One of 100 presets across 10 shared generators. 0.01 USDC includes one editable game module or map bundle.$0.01 Base1529 ms2 payers100% up
  95. 90market.datapackvibe.com/x402/assistant-game-open-19-d4-audioWeb Audio cue module: open-19-d4: Reusable synthesized collect/win cues, browser sound demo and preset cue schedule. No recorded music or third-party audio assets. Preset open-19-d4; configurable title, seed and accent. Source files, not hosted gameplay. One of 100 presets across 10 shared generators. 0.01 USDC includes one editable game module or map bundle.$0.01 Base1162 ms2 payers100% up
  96. 90market.datapackvibe.com/x402/assistant-finance-working-capital-rankWorking capital - Record ranking: Rank up to 200 supplied records by calculated value, preserving row indices; higher is not necessarily better. Metric: Working capital. Supplied figures only; returns JSON with formula, units and limitations. One of 50 calculators with 20 analysis modes. No live feed, financial advice or trade execution. 0.01 USDC includes one bounded record ranking report.$0.01 Base1684 ms2 payers100% up
  97. 90market.datapackvibe.com/x402/assistant-finance-trade-balance-rankTrade balance - Record ranking: Rank up to 200 supplied records by calculated value, preserving row indices; higher is not necessarily better. Metric: Trade balance. Supplied figures only; returns JSON with formula, units and limitations. One of 50 calculators with 20 analysis modes. No live feed, financial advice or trade execution. 0.01 USDC includes one bounded record ranking report.$0.01 Base1756 ms2 payers100% up
  98. 90market.datapackvibe.com/x402/assistant-finance-quick-ratio-rankQuick ratio - Record ranking: Rank up to 200 supplied records by calculated value, preserving row indices; higher is not necessarily better. Metric: Quick ratio. Supplied figures only; returns JSON with formula, units and limitations. One of 50 calculators with 20 analysis modes. No live feed, financial advice or trade execution. 0.01 USDC includes one bounded record ranking report.$0.01 Base1658 ms2 payers100% up
  99. 90market.datapackvibe.com/x402/assistant-finance-quick-ratio-outliersQuick ratio - IQR outlier flags: Flag observations beyond 1.5 times the interquartile range; statistical flags are not errors or fraud findings. Metric: Quick ratio. Supplied figures only; returns JSON with formula, units and limitations. One of 50 calculators with 20 analysis modes. No live feed, financial advice or trade execution. 0.01 USDC includes one bounded iqr outlier flags report.$0.01 Base1251 ms2 payers100% up
  100. 90market.datapackvibe.com/x402/assistant-finance-quick-ratio-calculateQuick ratio - Single calculation: Calculate one supplied record with the formula and units. Metric: Quick ratio. Supplied figures only; returns JSON with formula, units and limitations. One of 50 calculators with 20 analysis modes. No live feed, financial advice or trade execution. 0.01 USDC includes one bounded single calculation report.$0.01 Base1111 ms2 payers100% up