x402watch

51,986 paid endpoints are listed. 26,536 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 2026-10-08 06:24 UTC · 51,986 probed

26,536 answering 40220,632 down3,933 rejecting885 no paywall1,877 price drift
  1. 76market.datapackvibe.com/x402/crypto-product-search-blockchain-developmentDogecoin Coinbase market-pair lookup: Asset: Dogecoin (DOGE-USD). Find Coinbase Exchange USD and USDC market pairs matching a symbol. Focus: blockchain development. Uses live Coinbase Exchange or Base RPC data.$0.01 Basedown2 payers68% up
  2. 76market.datapackvibe.com/x402/crypto-base-eth-balance-market-researchBase ETH balance for Shop receiver: Address: Shop receiver. Read an address native ETH balance on Base. Focus: market research. Uses live Coinbase Exchange or Base RPC data.$0.01 Basedown2 payers68% up
  3. 76market.datapackvibe.com/x402/demand-next-news-artificial-intelligence-foundersArtificial intelligence news for Startup founders: Find recent reporting about AI models agents inference policy research. Focused for startup founders, with publisher links and publication dates.$0.01 Basedown2 payers68% up
  4. 76market.datapackvibe.com/x402/demand-next-community-technical-hiring-researchersHacker News discussion search: engineering hiring and team practices: Search public Hacker News stories for engineering hiring and team practices. Returns story titles, links, scores, authors, and timestamps.$0.01 Basedown2 payers68% up
  5. 76apollo.x402.paywithlocus.com/apollo/org-enrichmentLocus public pay-per-use API$0.038 Base306 ms2 payers73% up
  6. 76ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws/urlDecodeURL decoder API. Decodes percent-encoded URL text back to plain text.$0.01 Base671 ms1 payers68% up
  7. 76ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws/upworkFeeCalculatorUpwork freelancer fee calculator. Applies a documented tiered marginal service-fee schedule (20%/10%/5% at $500/$10,000 cumulative per-client lifetime billing thresholds) to compute take-home pay on an invoice, correctly splitting fees across a tier boundary like a tax bracket. Platform fee policies can change; verify current rates before relying on this for financial decisions.$0.01 Base561 ms1 payers68% up
  8. 76ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws/solveLinearEquationSolves a system of linear equations (Ax = b) using the ml-matrix library's LU decomposition (LuDecomposition), with a near-singularity guard beyond the library's exact-singular check, for systems up to 20x20.$0.01 Base449 ms1 payers68% up
  9. 76ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws/purchaseFireImpactCalculatorPurchase impact on FIRE timeline calculator. Runs the FIRE net-worth simulation twice — with and without a one-time purchase amount deducted at a given year — and reports how many years that purchase delays financial independence, quantifying its true opportunity cost.$0.01 Base347 ms1 payers68% up
  10. 76ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws/gasMileageSavingsCalculatorGas mileage savings calculator. Compares annual fuel cost between two gas-powered vehicles based on miles driven, gas price, and each vehicle's MPG, and computes the break-even point for any price premium of the more efficient vehicle.$0.01 Basedown1 payers60% up
  11. 76ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws/evaluateExpressionSafe arithmetic expression evaluator. Parses and evaluates expressions with +, -, *, /, ^, and parentheses using a bounded-recursion parser (no eval/Function), avoiding the arithmetic slips an LLM makes on long expressions.$0.01 Base82 ms1 payers60% up
  12. 76ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws/electricCarSavingsCalculatorElectric car savings calculator. Compares annual electricity cost against annual gas cost for a comparable gas vehicle, accounting for free-charging usage, and computes break-even years, cost per full charge, and gas-price-equivalent effective MPG.$0.01 Basedown1 payers60% up
  13. 76ppu43fkyhimq5fiqpmo42eh5ri0yypid.lambda-url.us-east-1.on.aws/capRateCalculatorCap rate calculator for real estate investing. Runs a full multi-year deal analysis (per-category rent/expense growth, a sale scenario, IRR) and headlines the capitalization rate: first-year NOI divided by purchase price.$0.01 Base63 ms1 payers60% up
  14. 76cryptyx.ai/api/signals/composite/heatmapThe most information-dense endpoint on the surface — 3 MB / 149K leaves per call. Latest N days of master composite scores per (asset × horizon) with ranks + per-class composite matrix + macro regime context + intraday micro-regime state, all in one call. Replaces 4 separate premium calls (composite/breadth + factor-cross-section + market-pulse/regime + one asset-scoped call). Priced at Trade Ideas tier ($0.10) to reflect payload size + compute; still 40% cheaper than fetching the equivalent data via 4 separate premium endpoints. Runs across 200+ digital assets — BTC, ETH, SOL, top-cap + long-tail coverage.$0.05 $0.10 Base760 ms1 payers93% up
  15. 76xhagents.xyz/api/company-enrichEnriches a company, domain or person from public structured sources (Wikidata, the public LinkedIn company page, Clearbit autocomplete): industry, size, headquarters, founding year, official website, stock listing and social handles.$0.05 Base3812 ms1 payers86% up
  16. 76api.ibancheck.co.uk/api/generate-idempotency-keyGenerate a time-sortable UUIDv7-based Idempotency-Key with a deterministic payload hash. Send it as an Idempotency-Key header on a retried call to any paid endpoint: the same key and request returns the cached response with no new charge.$0.002 Base250 ms1 payers60% up
  17. 76api.ibancheck.co.uk/api/valideaza-cuiCUI/CIF Modulo-11 checksum; live ANAF (Romania) or VIES (EU) registry lookup with short timeout, falling back to local format/demo-snapshot data if the live registry is unreachable$0.01 Base281 ms1 payers60% up
  18. 76api.seerium.xyz/v1/prediction/buildersPolymarket API for builder stats. Ranks prediction market creators by volume, active users, verification, and period comparisons.$0.001 $0.10 Base502 ms1 payers93% up
  19. 76api.seerium.xyz/v1/dex/funding-heatCrypto perpetual funding rate API, perp funding heatmap, and Dex funding heat feed for agents. Ranks active crypto Dex symbols by current funding pressure, crowded longs, crowded shorts, funding bps, severity, heat score, price move, volume, short squeeze risk, long squeeze risk, and reversal monitoring.$0.001 $0.10 Base458 ms1 payers93% up
  20. 76market.datapackvibe.com/x402/studio3d-generate-stairsGenerate Stairs: Generate a procedural stairs model as GLB and editable BLEND files. Parametric geometry, not AI text/image reconstruction. Runs locally in Blender. Bounded small-model processing, normally under 60 seconds; a busy worker returns an error before payment settlement.$0.02 Base476 ms1 payers69% up
  21. 76market.datapackvibe.com/x402/signal-osv-npm-vue-advisoriesvue Known vulnerability list: Known vulnerability list for npm package vue, from OSV. Accepts an exact version; latest resolves the registry version. Scope is the named package only.$0.01 Basedown1 payers69% up
  22. 76apexfaucet.xyz/api/x402/base-exit-check/:tokenHoneypot check for Base tokens: a real buy and sell simulated on Uniswap before you trade. Can you get out of this Base token, and what does it cost? Pass a Base token address: we find its deepest Uniswap v2, v3 or v4 pool against WETH or ETH (hooks included), then EXECUTE a buy and a full sell in one simulated Base block and return the ETH that comes back, the round-trip cost, and the revert reason if either leg fails. Plus name, supply and whether ownership is renounced.$0.01 Base618 ms1 payers73% up
  23. 76apexfaucet.xyz/api/x402/token/:mintSingle token detail (price, holders, liquidity, change windows).$0.003 Base493 ms1 payers73% up
  24. 76market.datapackvibe.com/x402/signal-research-urban-mobility-citation-recordssustainable urban mobility: Structured citation records: Structured citation records on sustainable urban mobility using Crossref publisher metadata. Returns DOI references and source attribution. Query can be overridden; sample summaries are labelled.$0.01 Basedown1 payers69% up
  25. 76market.datapackvibe.com/x402/signal-research-software-testing-literature-searchautomated software testing: Literature search: Literature search on automated software testing using Crossref publisher metadata. Returns DOI references and source attribution. Query can be overridden; sample summaries are labelled.$0.01 Basedown1 payers69% up
  26. 76market.datapackvibe.com/x402/signal-research-llm-reliability-sample-breakdownlarge language model reliability: Publication sample breakdown: Publication sample breakdown on large language model reliability using Crossref publisher metadata. Returns DOI references and source attribution. Query can be overridden; sample summaries are labelled.$0.01 Basedown1 payers69% up
  27. 76market.datapackvibe.com/x402/signal-research-llm-reliability-citation-recordslarge language model reliability: Structured citation records: Structured citation records on large language model reliability using Crossref publisher metadata. Returns DOI references and source attribution. Query can be overridden; sample summaries are labelled.$0.01 Basedown1 payers69% up
  28. 76market.datapackvibe.com/x402/signal-research-agent-evaluation-literature-searchAI agent evaluation: Literature search: Literature search on AI agent evaluation using Crossref publisher metadata. Returns DOI references and source attribution. Query can be overridden; sample summaries are labelled.$0.01 Basedown1 payers69% up
  29. 76market.datapackvibe.com/x402/signal-economy-bd-labourBangladesh: Employment market indicators: Employment market indicators for Bangladesh: three World Bank WDI annual indicators with history, source update date and latest available observations. Country and years can be overridden.$0.01 Basedown1 payers69% up
  30. 76market.datapackvibe.com/x402/signal-npm-sveltejs-kit-install-hooks@sveltejs/kit Install lifecycle hooks: Install lifecycle hooks for npm package @sveltejs/kit. Inspect registry metadata for integration and upgrade planning. Package and version can be overridden.$0.01 Basedown1 payers69% up
  31. 76market.datapackvibe.com/x402/signal-osv-pypi-certifi-cve-mapcertifi CVE and advisory reference mapping: CVE and advisory reference mapping for PyPI package certifi, from OSV. Accepts an exact version; latest resolves the registry version. Scope is the named package only.$0.01 Basedown1 payers69% up
  32. 76market.datapackvibe.com/x402/signal-osv-pypi-certifi-fix-versionscertifi Advisory fixed-version boundaries: Advisory fixed-version boundaries for PyPI package certifi, from OSV. Accepts an exact version; latest resolves the registry version. Scope is the named package only.$0.01 Basedown1 payers69% up
  33. 76market.datapackvibe.com/x402/signal-osv-pypi-tornado-timelinetornado Vulnerability disclosure timeline: Vulnerability disclosure timeline for PyPI package tornado, from OSV. Accepts an exact version; latest resolves the registry version. Scope is the named package only.$0.01 Basedown1 payers69% up
  34. 76market.datapackvibe.com/x402/signal-osv-pypi-celery-fix-versionscelery Advisory fixed-version boundaries: Advisory fixed-version boundaries for PyPI package celery, from OSV. Accepts an exact version; latest resolves the registry version. Scope is the named package only.$0.01 Basedown1 payers69% up
  35. 76market.datapackvibe.com/x402/signal-osv-pypi-sqlalchemy-fix-versionssqlalchemy Advisory fixed-version boundaries: Advisory fixed-version boundaries for PyPI package sqlalchemy, from OSV. Accepts an exact version; latest resolves the registry version. Scope is the named package only.$0.01 Basedown1 payers69% up
  36. 76market.datapackvibe.com/x402/signal-osv-pypi-sqlalchemy-severitysqlalchemy Advisory severity breakdown: Advisory severity breakdown for PyPI package sqlalchemy, from OSV. Accepts an exact version; latest resolves the registry version. Scope is the named package only.$0.01 Basedown1 payers69% up
  37. 76market.datapackvibe.com/x402/signal-osv-pypi-sqlalchemy-advisoriessqlalchemy Known vulnerability list: Known vulnerability list for PyPI package sqlalchemy, from OSV. Accepts an exact version; latest resolves the registry version. Scope is the named package only.$0.01 Basedown1 payers69% up
  38. 76market.datapackvibe.com/x402/signal-osv-pypi-pandas-timelinepandas Vulnerability disclosure timeline: Vulnerability disclosure timeline for PyPI package pandas, from OSV. Accepts an exact version; latest resolves the registry version. Scope is the named package only.$0.01 Basedown1 payers69% up
  39. 76market.datapackvibe.com/x402/signal-osv-pypi-numpy-timelinenumpy Vulnerability disclosure timeline: Vulnerability disclosure timeline for PyPI package numpy, from OSV. Accepts an exact version; latest resolves the registry version. Scope is the named package only.$0.01 Basedown1 payers69% up
  40. 76market.datapackvibe.com/x402/signal-osv-pypi-pip-cve-mappip CVE and advisory reference mapping: CVE and advisory reference mapping for PyPI package pip, from OSV. Accepts an exact version; latest resolves the registry version. Scope is the named package only.$0.01 Basedown1 payers69% up
  41. 76market.datapackvibe.com/x402/signal-osv-pypi-setuptools-timelinesetuptools Vulnerability disclosure timeline: Vulnerability disclosure timeline for PyPI package setuptools, from OSV. Accepts an exact version; latest resolves the registry version. Scope is the named package only.$0.01 Basedown1 payers69% up
  42. 76market.datapackvibe.com/x402/signal-osv-pypi-pyjwt-timelinepyjwt Vulnerability disclosure timeline: Vulnerability disclosure timeline for PyPI package pyjwt, from OSV. Accepts an exact version; latest resolves the registry version. Scope is the named package only.$0.01 Basedown1 payers69% up
  43. 76market.datapackvibe.com/x402/signal-osv-pypi-starlette-severitystarlette Advisory severity breakdown: Advisory severity breakdown for PyPI package starlette, from OSV. Accepts an exact version; latest resolves the registry version. Scope is the named package only.$0.01 Basedown1 payers69% up
  44. 76market.datapackvibe.com/x402/signal-osv-pypi-django-cve-mapdjango CVE and advisory reference mapping: CVE and advisory reference mapping for PyPI package django, from OSV. Accepts an exact version; latest resolves the registry version. Scope is the named package only.$0.01 Basedown1 payers69% up
  45. 76market.datapackvibe.com/x402/signal-osv-pypi-django-timelinedjango Vulnerability disclosure timeline: Vulnerability disclosure timeline for PyPI package django, from OSV. Accepts an exact version; latest resolves the registry version. Scope is the named package only.$0.01 Basedown1 payers69% up
  46. 76market.datapackvibe.com/x402/signal-osv-pypi-aiohttp-timelineaiohttp Vulnerability disclosure timeline: Vulnerability disclosure timeline for PyPI package aiohttp, from OSV. Accepts an exact version; latest resolves the registry version. Scope is the named package only.$0.01 Basedown1 payers69% up
  47. 76market.datapackvibe.com/x402/signal-osv-pypi-aiohttp-cve-mapaiohttp CVE and advisory reference mapping: CVE and advisory reference mapping for PyPI package aiohttp, from OSV. Accepts an exact version; latest resolves the registry version. Scope is the named package only.$0.01 Basedown1 payers69% up
  48. 76market.datapackvibe.com/x402/signal-osv-pypi-httpx-cve-maphttpx CVE and advisory reference mapping: CVE and advisory reference mapping for PyPI package httpx, from OSV. Accepts an exact version; latest resolves the registry version. Scope is the named package only.$0.01 Basedown1 payers69% up
  49. 76market.datapackvibe.com/x402/signal-osv-pypi-urllib3-cve-mapurllib3 CVE and advisory reference mapping: CVE and advisory reference mapping for PyPI package urllib3, from OSV. Accepts an exact version; latest resolves the registry version. Scope is the named package only.$0.01 Basedown1 payers69% up
  50. 76market.datapackvibe.com/x402/signal-osv-npm-node-fetch-cve-mapnode-fetch CVE and advisory reference mapping: CVE and advisory reference mapping for npm package node-fetch, from OSV. Accepts an exact version; latest resolves the registry version. Scope is the named package only.$0.01 Basedown1 payers69% up
  51. 76market.datapackvibe.com/x402/demand-company-exxon-research-spendingExxon Mobil NVIDIA Research and development spending: Exxon Mobil (XOM). Return recent reported research and development expense facts. Uses SEC EDGAR public submissions and company-facts APIs.$0.01 Basedown1 payers68% up
  52. 76market.datapackvibe.com/x402/crypto-hourly-candles-trading-researchHourly crypto price candles for Trading research: Return up to 24 recent hourly Coinbase Exchange candles. Focus: trading research. Uses live Coinbase Exchange or Base RPC data.$0.01 Basedown1 payers68% up
  53. 76apexfaucet.xyz/api/x402/holders/:mintTop 20 holders for a token, deduped by owner.$0.003 Base578 ms1 payers73% up
  54. 75stableupload.dev/api/uploadBuy an upload slot. Agent uploads file via returned URL.$2.00 $0.005 Base1675 ms43 payers100% up
  55. 75www.stablebrowser.dev/api/sessionsCreate 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.$0.10 Base2445 ms15 payers80% up
  56. 75options.lonestaroracle.xyz/flowOptions flow intelligence — unusual activity put/call ratios large block trades$0.05 $0.01 Base1149 ms7 payers100% up
  57. 75exp-100k-001-v2.vercel.app/v1/verticals/medical-equipment/buyer-mapChile medical-equipment public buyer demand intelligence$0.10 $0.01 Base1334 ms5 payers100% up
  58. 75api.invoket.com/weather/forecastBefore your agent schedules a delivery, plans outdoor work or hedges short-term weather exposure: a point forecast of 2 m temperature, precipitation and 10 m wind — plus opt-in convective, humidity, cloud and snow variables — for any GPS point or city. Deterministic NOAA GFS at 0.25 deg to 16 days (384 h), NOAA GEFS ensemble mean at 0.5 deg to 35 days (840 h) — beyond 16 days the value is an ensemble mean with smoothed extremes: trend, not threshold triggers. The lead selector is optional (omitted, the forecast defaults to the current analysis time) and the response names the model that served it and the exact forecast step.$0.01 Base1609 ms4 payers80% up
  59. 75proxy.suverse.io/v1/data/ethereum-gas-trackerEthereum mainnet gas prices (safe / standard / fast tier) real-time from Etherscan V2. AI agent MEV bot, trading bot, dApp tx-timing API, ETH gas oracle, pay-per-call. Time transactions for cost efficiency.$0.002 $0.05 Base1410 ms4 payers100% up
  60. 75www.tereno.xyz/api/v1/capabilities/chain.snapshot/invokeWhat is the current state of Base? Latest block number, timestamp, base fee and suggested gas fees in a single cheap call with no parameters — the fastest way to test an x402 payment loop end to end. Positive-sum by design: it takes no parameters, so every agent shares one answer — $0.02 if you are the first inside the freshness window, $0.01 for everyone after you.$0.002 $0.005 Base1248 ms2 payers100% up
  61. 75agent-ready.dev/api/x402/scanPay-per-scan AI agent-readability scan. POST { "url": "https://…" } with an X-PAYMENT header to run a scan with no account or subscription. Two tiers: $0.02 (25 pages) and $0.25 (250 pages), USDC on Base.$0.25 $0.02 Base1109 ms2 payers100% up
  62. 75store.agentexchange.work/weather/forecastAggregates global weather forecasts using open meteorological data. Useful for supply-chain routing, event planning, and agriculture commodity prediction.$0.01 $0.09 Base1229 ms2 payers100% up
  63. 75vaaya.ai/api/run/tavily/searchTavily — AI-native web search tuned for RAG: ranked results with relevance scores, optional LLM answer synthesis. Pass `query`; optional `topic` (general|news|finance), `max_results` (1-20), `include_answer` (true = synthesized answer), `include_raw_content` (true|"markdown" = full page text per hit), `include_domains`/`exclude_domains`, `time_range` (day|week|month|year), `country`. Alternative to exa/search (semantic recall) and brave/search (keyword index).$0.01 Base712 ms2 payers67% up
  64. 75jev.agents.bakingbad.dev/v1/systemoneAnswer typed questions about a state$0.00 $0.00 Base1072 ms2 payers100% up
  65. 75402.com.tr/api/x402/phone-checkTurn the many ways a phone number gets typed into one E.164 string: strips spacing, brackets, the 00 international prefix and the national trunk zero people include out of habit. Returns country, calling code, national number, and whether the length matches that country's numbering plan. Line type (mobile / fixed) is reported ONLY for countries whose ranges are unambiguous and is null elsewhere with a reason — never guessed. Offline: it does not check that the number is assigned or reachable.$0.002 Base693 ms2 payers67% up
  66. 75api.magentlab.com/api/calc/la_gradingLundell 1999 Table 1 Los Angeles classification. Caller-assigned flags. none if no mucosal break (not minimal changes); D if break(s) involve ≥75% of circumference; C if continuous between fold tops but <75%; B if longest break >5 mm not between fold tops; A if ≤5 mm not between fold tops. magent does not interpret images. Not Savary-Miller, GERD diagnosis, Barrett/stricture, or 1994 LA (D was fully circumferential). Not a medical device.$0.005 $0.007 Base1430 ms2 payers100% up
  67. 75api.magentlab.com/api/calc/yearsYEARS algorithm (van der Hulle 2017 Lancet). Count three caller-assigned items (clinical signs of DVT, hemoptysis, PE most likely) and exclude PE only when D-dimer (ng/mL FEU) is strictly below 1000 with 0 items or 500 with 1-3 items. Equality is not excluded. Not a diagnosis, not Wells, not PERC. magent does not decide PE most likely. The 2017 cohort excluded pregnancy.$0.005 $0.007 Base1165 ms2 payers100% up
  68. 75api.magentlab.com/api/calc/wintersWinters' formula for expected PCO2 in metabolic acidosis: 1.5 × bicarbonate + 8 mm Hg, with a published ±2 mm Hg range. Optional comparison of measured PaCO2 to that band. Deterministic Albert–Winters 1967 arithmetic with citation; not a treatment target or a metabolic alkalosis formula.$0.005 $0.007 Base1397 ms2 payers100% up
  69. 75api.magentlab.com/api/calc/wifiMills 2014 SVS WIfI: three independent caller-assigned grades, not a summed total. Wound 0-3 (no ulcer; small shallow distal ulcer; deeper ulcer or digital gangrene; extensive ulcer or gangrene). Ischemia 0-3 (none; mild; moderate; severe). Foot infection 0-3 (none; skin/subcutaneous; deeper without SIRS; with SIRS). Label like W0-I0-fI0. Caller assigns grades. Not a medical device, not PEDIS, and not an amputation or revascularization order; magent does not inspect wounds or measure ABI.$0.005 $0.007 Base1555 ms2 payers100% up
  70. 75api.magentlab.com/api/calc/wexner_constipationAgachan 1996 constipation scoring system from eight caller-assigned table bands (frequency, painful evacuation, incomplete evacuation, abdominal pain, time per attempt, assistance 0-2, unsuccessful attempts per 24 hours, duration). Total 0-30. constipation true iff score > 15. magent does not take a bowel history. Not a medical device, not a laxative order, not Jorge 1993 fecal incontinence scoring.$0.005 $0.007 Base1947 ms2 payers100% up
  71. 75api.magentlab.com/api/calc/westley_croupWestley 1978 croup score from five caller-assigned signs (consciousness 0/5, cyanosis 0/4/5, stridor 0-2, air entry 0-2, retractions 0-3; max 17). Deterministic published score with citation. Not a diagnosis; magent does not invent total-score severity bands.$0.005 $0.007 Base1208 ms2 payers100% up
  72. 75api.magentlab.com/api/calc/wells_peWells pulmonary-embolism probability from discrete clinical flags. Returns three-tier and two-tier bands. Deterministic published score with citation; not a diagnosis.$0.005 $0.007 Base1516 ms2 payers100% up
  73. 75api.magentlab.com/api/calc/wells_dvtWells deep-vein thrombosis probability from discrete clinical flags. Returns three-tier and two-tier bands. Deterministic published score with citation; not a diagnosis.$0.005 $0.007 Base1169 ms2 payers100% up
  74. 75api.magentlab.com/api/calc/vurxKirsch 2014 VURx for children <2 years with primary vesicoureteral reflux. Caller-assigned vur_timing (voiding 1, late filling 2, early- or mid-filling 3), female (1), high_grade grade IV-V (1), and ureteral_anomaly (complete duplication or periureteral diverticulum, 1). Score 1-6. Improvement or resolution: 1 → 89%, 2 → 69%, 3 → 53%, 4 → 16%, 5-6 → 11%. magent does not read a VCUG. Not a medical device. Not a surgery order.$0.005 $0.007 Base1109 ms2 payers100% up
  75. 75api.magentlab.com/api/calc/vte_bleedKlok 2016 VTE-BLEED for major bleeding on stable anticoagulation after VTE. Six items: active cancer 2; male with uncontrolled hypertension (SBP ≥140) 1; anemia 1.5; history of bleeding 1.5; age ≥60 1.5; renal dysfunction (eGFR/CrCl <60) 1.5; max 9. Low <2, high ≥2. Caller-assigned flags; magent does not assay hemoglobin or eGFR. Not a medical device, not HAS-BLED, and not a treatment-duration order.$0.005 $0.007 Base1376 ms2 payers100% up
  76. 75api.magentlab.com/api/calc/villaltaKahn 2009 Villalta scale (ISTH SSC): five caller-assigned symptoms and six signs, each 0-3 (none/mild/moderate/severe), summed 0-33. Venous ulcer is a separate boolean and is not added as 15 points. PTS if score ≥5 or ulcer; bands none 0-4 (no ulcer), mild 5-9, moderate 10-14, severe if ≥15 or ulcer. magent does not examine the limb. Not CEAP, not VCSS, not Ginsberg PTS.$0.005 $0.007 Base1396 ms2 payers100% up
  77. 75api.magentlab.com/api/calc/vancouver_chest_painChristenson 2006 Vancouver Chest Pain Rule. early_discharge_eligible is true when the initial ECG is not abnormal, 2-hour troponin is not elevated, there is no prior ACS or nitrate use, and either palpation reproduces pain or age is under 40 without radiation to neck, arm, or jaw. Age 40 is not the age-history path. magent does not interpret ECGs or assay troponin. Not the 2014 age-50 variant. Not a medical device and not a discharge order.$0.005 $0.007 Base1353 ms2 payers100% up
  78. 75api.magentlab.com/api/calc/vacs_2Tate 2019 VACS Index 2.0 (not 1.0): age, CD4, HIV-1 RNA, hemoglobin, caller-assigned FIB-4 and eGFR, hepatitis C, albumin, WBC, and BMI. Appendix Table 1 polynomials. Score scaled so the median profile is 44. Not a 5-year percent (no published S0). magent does not compute FIB-4 or eGFR and does not assign HIV status.$0.005 $0.007 Base1312 ms2 payers100% up
  79. 75api.magentlab.com/api/calc/vacs_1Tate 2013 VACS Index 1.0 (not VACS 2.0): age, CD4, HIV-1 RNA, hemoglobin g/dL, caller-assigned FIB-4 and eGFR, and hepatitis C. Points 0-164. No published named mortality bands. magent does not compute FIB-4 or MDRD/CKD-EPI and does not order ART.$0.005 $0.007 Base1274 ms2 payers100% up
  80. 75api.magentlab.com/api/calc/utrsWebb 2022 Table 6 simplified score for 14-day hospitalization and 28-day mortality. Age decade lookup 0-10=0.5 through >100=5.5. Two points: diabetes, severe immunocompromise, obesity (BMI ≥30), caller-assigned community of color. One point: male sex, dyspnea, hypertension, CAD, arrhythmia, CHF, CKD, chronic pulmonary, liver, cerebrovascular, neurologic disease. score_ge_6 at Table 7 Youden ≥6. Not a diagnosis or allocation order.$0.005 $0.007 Base1314 ms2 payers100% up
  81. 75api.magentlab.com/api/calc/up_to_7Mazzaferro 2009 Up-to-seven: meets_up_to_seven is true iff tumor_count plus largest_cm is 7 or less and microvascular_invasion is false. Returns the boolean and size_number_sum, not a 5-year survival percentage. Pathology/explant-style inputs as assigned by the caller; magent does not interpret imaging or histology. Not Milan, not Metroticket 2.0 AFP criteria, not a contour calculator, not a medical device, and not a transplant listing.$0.005 $0.007 Base2719 ms2 payers100% up
  82. 75api.magentlab.com/api/calc/uissZisman 2002 localized N0M0 UISS for surgically resected unilateral RCC. Caller-assigned 1997 pathological T (t1-t4), Fuhrman 1-4, ECOG 0-4, and n0_m0 true. Returns low_risk (T1, Fuhrman 1-2, ECOG 0), high_risk (T3 with Fuhrman 2-4 and ECOG ≥1, or any T4), or intermediate_risk (every other N0M0 combination). Not 2001 I-V. Not metastatic UISS. Not SSIGN. magent does not assign TNM or read slides. Not a diagnosis. Not a medical device.$0.005 $0.007 Base1196 ms2 payers100% up
  83. 75api.magentlab.com/api/calc/uceisTravis 2013 UCEIS: caller-assigned vascular_pattern (normal 0, patchy 1, obliterated 2), bleeding (none 0, mucosal 1, luminal_mild 2, luminal_moderate_or_severe 3), erosions_ulcers (none 0, erosions 1, superficial_ulcer 2, deep_ulcer 3) at the worst-affected sigmoidoscopy segment. magent sums only (max 8; 2013 0-8 recode, not 2012 3-11) with no activity bands. magent does not perform endoscopy. Not Mayo DAI, MES, or Travis 1996 day-3. Not a diagnosis.$0.005 $0.007 Base1198 ms2 payers100% up
  84. 75api.magentlab.com/api/calc/ttkgTranstubular potassium gradient (TTKG) from plasma potassium, urine potassium, plasma osmolality, and urine osmolality (Ethier JH et al., Am J Kidney Dis 1990). TTKG = (urine_k / potassium) / (urine_osm / plasma_osm), 1 decimal. Not valid when urine osmolality is not greater than plasma osmolality (water diuresis). Numeric TTKG only; not a potassium-disorder diagnosis or medical device.$0.005 $0.007 Base1354 ms2 payers100% up
  85. 75api.magentlab.com/api/calc/truelove_wittsTruelove and Witts 1955 ulcerative colitis severity. severe iff stools_per_day >= 6 with macroscopic blood and at least one of fever, tachycardia, anemia, and esr_raised; mild iff stools_per_day <= 4, macroscopic_blood false, and no systemic flags; otherwise moderately_severe. Caller assigns flags from the 1955 table (fever mean evening >37.5 C or 37.8 C on 2 of 4 days; pulse >90; Hb 75% or less; ESR >30). magent does not examine the patient. Not a diagnosis, not Mayo UC, not PUCAI.$0.005 $0.007 Base1773 ms2 payers100% up
  86. 75api.magentlab.com/api/calc/trip_castNemeth 2020 TRiP(cast) VTE risk after lower-limb trauma immobilization. Caller-assigned Table 1 trauma (high 3, intermediate 2, low 1) and immobilization (upper_leg 3, lower_leg 2, foot_cast 1, other_plantar 0) plus age, sex, BMI, and nine flags. Max 34. High-risk at score >=7. Not a diagnosis or thromboprophylaxis order. magent does not classify the radiograph.$0.005 $0.007 Base1969 ms2 payers100% up
  87. 75api.magentlab.com/api/calc/travisTravis 1996 day-3 of intravenous steroids for severe ulcerative colitis. travis_high is true when stools_per_day > 8, or when stools_per_day is 3 to 8 inclusive and crp_mg_l > 45. Stools 8 with CRP 45 is not high. Stools 2 with high CRP is not high. Both parameters are required. Not a colectomy order, not the Ho score, and not Truelove and Witts. magent does not count stools or measure CRP.$0.005 $0.007 Base1809 ms2 payers100% up
  88. 75api.magentlab.com/api/calc/tokyo_cholecystitisYokoe 2018 TG18 (=TG13) acute cholecystitis. Definite if local signs (Murphy or RUQ mass/pain/tenderness), systemic signs (fever, elevated CRP or WBC), and imaging; suspected if local and systemic without imaging; else none. Suspected/definite: Grade III if any organ dysfunction, else Grade II if any Grade II flag, else Grade I. Severity none when diagnosis is none. Not cholangitis or Alvarado/RIPASA. magent does not examine, assay, or read imaging. Not a medical device.$0.005 $0.007 Base1170 ms2 payers100% up
  89. 75api.magentlab.com/api/calc/tokuhashiRevised Tokuhashi 2005 (0-15). KPS poor/moderate/good 0/1/2. Extraspinal ge_3/one_or_two/none 0/1/2. Vertebral ge_3/two/one 0/1/2. Visceral unremovable/removable/none 0/1/2. Primary lung osteosarcoma stomach bladder esophagus pancreas 0; liver gallbladder unidentified 1; others 2; kidney uterus 3; rectum 4; thyroid prostate breast carcinoid 5. Palsy complete/incomplete/none 0/1/2. Bands 0-8/9-11/12-15. Not an operative order. Not 1990. Not SINS. Does not read imaging. Not a medical device.$0.005 $0.007 Base1765 ms2 payers100% up
  90. 75api.magentlab.com/api/calc/tlicsVaccaro 2005 TLICS: morphology compression 1 / burst 2 / translational_rotational 3 / distraction 4 (single most severe) + plc intact 0 / suspected_indeterminate 2 / injured 3 + neuro intact 0 / nerve_root 2 / complete_cord_conus 2 / incomplete_cord_conus 3 / cauda_equina 3. Max 10. Bands 0-3 nonoperative, 4 equivocal, >=5 operative guidance. Not a surgical order. Not AO spine. Not SINS (neoplastic). magent does not read imaging. Not a medical device.$0.005 $0.007 Base1286 ms2 payers100% up
  91. 75api.magentlab.com/api/calc/tisdaleTisdale 2013 QT prolongation risk score (Table 5): age ≥68 (1), female (1), loop diuretic (1), potassium ≤3.5 mmol/L (2), admission QTc ≥450 ms (2), acute MI (2), sepsis (3), heart failure (3), one QTc-prolonging drug (3) plus ≥2 drugs (3 stacked; max 21). Returns bands 0-6 / 7-10 / ≥11. Deterministic published arithmetic with citation; not a medical device, not a drug-stop protocol, and not a TdP diagnosis.$0.005 $0.007 Base1604 ms2 payers100% up
  92. 75api.magentlab.com/api/calc/timi_ua_nstemiTIMI risk score for unstable angina / NSTEMI from age and six caller-assigned flags. Returns the 0-7 point total and components. Deterministic published score with citation; not an invasive-strategy protocol.$0.005 $0.007 Base1358 ms2 payers100% up
  93. 75api.magentlab.com/api/calc/timi_stemiTIMI risk score for ST-elevation MI from age, diabetes/hypertension/angina, systolic BP, heart rate, Killip class, weight, anterior STE or LBBB, and time to treatment. Returns a 0-14 point total with components. Deterministic published score with citation; not a reperfusion or fibrinolytic protocol.$0.005 $0.007 Base1130 ms2 payers100% up
  94. 75api.magentlab.com/api/calc/timi_risk_indexMorrow InTIME-II TIMI risk index: heart rate × (age/10)^2 / systolic BP, with the five published groups (≤12.5, >12.5–17.5, >17.5–22.5, >22.5–30, >30). Deterministic published arithmetic with citation; not a reperfusion decision.$0.005 $0.007 Base1443 ms2 payers100% up
  95. 75api.magentlab.com/api/calc/thakarThakar 2005 clinical score for acute renal failure requiring dialysis after open-heart surgery. Points from sex, CHF, LVEF <35%, preoperative IABP, COPD, insulin-requiring diabetes, previous cardiac surgery, emergency surgery, procedure type (CABG / valve / CABG+valve / other), and preoperative creatinine (<1.2 / 1.2 to <2.1 / >=2.1 mg/dL). Returns integer score (max 17) and category 0–2 / 3–5 / 6–8 / 9–13. Not a dialysis order; not AKIN or RIFLE staging.$0.005 $0.007 Base1699 ms2 payers100% up
  96. 75api.magentlab.com/api/calc/tdn_gradeTerrapon 2021 Therapy-Disability-Neurology (TDN) grade. Caller assigns therapy t1-t5, modified Rankin 0-6 (6 is death), and new neurologic deficit. Overall grade is max(T, D, N); t5 or mRS 6 is always 5. D maps mRS 0-1→1, 2-3→2, 4→3, 5→4, 6→5; new deficit is N=2 else N=1. Not a diagnosis and not Clavien-Dindo alone. magent does not grade the event.$0.005 $0.007 Base1257 ms2 payers100% up
  97. 75api.magentlab.com/api/calc/t_macsBody 2016 T-MACS logistic ACS probability from caller-assigned ECG ischaemia, worsening angina, right-arm radiation, vomiting, observed sweating, hypotension (SBP <100), and Roche Elecsys hs-cTnT ng/L. Uses that paper's rounded coefficients. Bands p<0.02 very_low, 0.02<=p<0.05 low, 0.05<=p<0.95 moderate, p>=0.95 high. magent does not interpret ECG or assay troponin. Not original MACS, HEART, EDACS, or Vancouver. Not a diagnosis or medical device.$0.005 $0.007 Base1131 ms2 payers100% up
  98. 75api.magentlab.com/api/calc/sulf_fastWaldron 2023 SULF-FAST for patients who already report a TMP-SMX (sulfa antibiotic) allergy. Adapted PEN-FAST flags, not PEN-FAST itself. Three caller-assigned flags: allergy event 5 or fewer years ago (2), anaphylaxis/angioedema or potential SCAR as one criterion (2), treatment required (1). Max 5. Risk: low if score < 3, elevated if ≥ 3. low_risk_for_testing iff score < 3. Not an allergy diagnosis or delabeling order. magent does not take an allergy history.$0.005 $0.007 Base1434 ms2 payers100% up
  99. 75api.magentlab.com/api/calc/sudbury_vertigoOhle 2025 Sudbury vertigo ED score (Table 2): male 1, age>65 flag 1, diabetes 1, hypertension 3, motor or sensory deficit 5, cerebellar signs 6, BPPV -5. Returns score (female+BPPV -5, not clamped), max 17, Table 3 bands lt_5 / 5_to_8 / gt_8 (0.0 / 2.1 / 41.0%), and investigate_further if score >4. Not a medical device, stroke diagnosis, CT order, HINTS, or HINTS-plus. magent does not examine the patient. Age is the age>65 flag, not years.$0.005 $0.007 Base1131 ms2 payers100% up
  100. 75api.magentlab.com/api/calc/subtle_stemiDriver 2017 4-variable formula for normal-variant STE in V2-V4 (early repolarization) versus subtle LAD occlusion: formula_value = 0.052*QTc_ms - 0.151*QRS_V2_mm - 0.268*R_V4_mm + 1.062*STE60_V3_mm, 3 decimals. lad_occlusion_suggested is true iff the value is ≥18.2 (derivation highest-accuracy cutpoint). Intended only when ≥1 mm STE in V2-V4 without obvious occlusion features. magent does not read the ECG. Not a STEMI diagnosis, cath-lab order, or 3-variable formula. Not a medical device.$0.005 $0.007 Base1516 ms2 payers100% up