x402watch

53,742 paid endpoints are listed. 25,811 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 2026-10-07 06:24 UTC · 53,742 probed

25,811 answering 40222,423 down4,640 rejecting868 no paywall1,848 price drift
  1. 86pyfile-agent.taile3ff35.ts.net:10000/pass/buyBuy a time-window pass with quota. Body: {scope: web-24h|secret-7d|ideas-30d}. Returns a token to send as header X-Pass on covered routes, skipping per-call payment until the pass expires or the quota is used.$0.10 Base780 ms1 payers90% up
  2. 86pyfile-agent.taile3ff35.ts.net:10000/secret/drop-ttlTime-boxed dead drop: like drop, but the value survives reads until it expires (TTL up to 7 days, default 24h), then is destroyed automatically.$0.002 Base774 ms1 payers90% up
  3. 86pyfile-agent.taile3ff35.ts.net:10000/secret/dropOne-read dead drop: hand a credential between two agents where neither should hold it first. POST the secret, pay once, receive a read_url that works exactly one time — the first read destroys the value before responding. Max 16KB.$0.002 Base749 ms1 payers90% up
  4. 86pyfile-agent.taile3ff35.ts.net:10000/secret/getRetrieve a stored secret by id + access token. Returns the decrypted value, label and read count.$0.002 Base739 ms1 payers90% up
  5. 86pyfile-agent.taile3ff35.ts.net:10000/web/searchWeb search: ranked results (title + url) for a query. ?q=x402+agent+payments&limit=8$0.003 Base736 ms1 payers90% up
  6. 86market.datapackvibe.com/x402/time-blocks-projectProject Time-block scheduler: Place tasks into sequential time blocks with breaks. Tailored for project workflows.$0.01 Basedown1 payers84% up
  7. 86markdown.openverbs.com/v1/renderRender GitHub-Flavored Markdown to HTML. Output is sanitized by default (scripts, event handlers and javascript: URLs removed); set sanitize=false to keep raw HTML.$0.002 Base613 ms1 payers90% up
  8. 86markdown.openverbs.com/v1/frontmatterSplit YAML front-matter from a document — returns the parsed metadata object and the remaining content body. Malformed YAML is rejected as a clean 400.$0.002 Base622 ms1 payers90% up
  9. 86html.openverbs.com/v1/encodeEncode text to HTML entities so it can be safely embedded in markup. By default uses hex numeric references; set useNamedReferences for named entities (&, ©) or encodeEverything to encode every character.$0.002 Base401 ms1 payers90% up
  10. 86html.openverbs.com/v1/decodeDecode HTML entities (named, decimal and hex numeric references) back into plain text.$0.002 Base387 ms1 payers90% up
  11. 86numtheory.openverbs.com/v1/modpowCompute (base ^ exponent) mod modulus efficiently for arbitrary-precision integers. The modulus must be positive.$0.004 Base591 ms1 payers90% up
  12. 86numtheory.openverbs.com/v1/gcdGreatest common divisor of two or more non-negative integers (arbitrary precision).$0.004 Base511 ms1 payers90% up
  13. 86data.openverbs.com/v1/queryEvaluate a JMESPath expression against a JSON value and return the selected/projected result. A malformed expression is rejected before payment.$0.004 Base559 ms1 payers90% up
  14. 86data.openverbs.com/v1/mergeDeep-merge an ordered list of JSON documents, left to right. Objects are merged key-by-key; arrays, scalars and null in a later document replace the earlier value (last-wins, no array concatenation).$0.004 Base569 ms1 payers90% up
  15. 86dns.openverbs.com/v1/resolveResolve DNS records for a hostname — A, AAAA, CNAME, MX, TXT, NS, SOA, CAA or SRV. NXDOMAIN or an absent record type returns an empty record set.$0.006 Base476 ms1 payers90% up
  16. 86x402-bazaar-rank.x402-bazaar-rank-worker.workers.dev/in-entertainmentHighest-demand x402 services tagged 'entertainment': ranked by 30-day unique paying wallets, with calls, price, network and calls-per-payer for each. 6 providers and 205 paying wallets measured in this tag.$0.008 Base1043 ms1 payers94% up
  17. 86agentbit.app/v1/research/papersSearch academic literature across OpenAlex, Crossref and arXiv in one call: title, authors, year, venue, DOI, citation count, abstract and a DIRECT open-access PDF link where one exists. Deduplicated across sources, filterable by year and open-access, optional BibTeX per paper. One request replaces three APIs.$0.01 Base1255 ms1 payers93% up
  18. 86market.datapackvibe.com/x402/signal-osv-pypi-setuptools-fix-versionssetuptools Advisory fixed-version boundaries: Advisory fixed-version boundaries for PyPI package setuptools, from OSV. Accepts an exact version; latest resolves the registry version. Scope is the named package only.$0.01 Base464 ms1 payers85% up
  19. 86market.datapackvibe.com/x402/pulse-news-browser-automation-operatorsBrowser automation updates for Operations teams: Search recent Google News RSS coverage of browser automation for operations teams. Returns publisher links and dates.$0.01 Basedown1 payers86% up
  20. 86402.com.tr/api/x402/nft-floorCurrent floor price for a Base NFT collection (OpenSea / LooksRare) via Alchemy. Pass the collection contract address. Coverage is limited to marketplace-listed collections. For agents tracking NFT markets.$0.02 Base501 ms1 payers90% up
  21. 86api.dexl.io/api/agents/:chain/:agentIdDetailed profile for a single AI agent (by chain + agentId)$0.002 Base747 ms1 payers90% up
  22. 86api.dexl.io/api/tokens/:contractAddressDetailed data for a single token (by contract address)$0.001 Base721 ms1 payers90% up
  23. 86gpt.558686.xyz/v1/audit/code$1.50 Base1070 ms1 payers100% up
  24. 86gpt.558686.xyz/v1/content/seo$0.80 Base1077 ms1 payers100% up
  25. 86gpt.558686.xyz/v1/doc/summary$0.50 Base1008 ms1 payers100% up
  26. 86crypto-currency-network.net/api/ccn/payCCN — Crypto Currency Network Premium News Feed$0.001 Base345 ms1 payers90% up
  27. 86agentworld.me/api/agentworld/slrb/batchSolvScore bulk agent credit lookup$0.005 Base636 ms1 payers90% up
  28. 86agentworld.me/api/mlb/duke/predictDUKE Baseball Predict$0.01 Base365 ms1 payers90% up
  29. 86agentworld.me/api/mlb/duke/askDUKE Baseball Ask$0.002 Base375 ms1 payers90% up
  30. 86agentworld.me/api/mlb/duke/analyzeDUKE Baseball Analyze$0.005 Base426 ms1 payers90% up
  31. 86market.datapackvibe.com/x402/web-research-papers-small-businessResearch paper search for Small business: Find public research papers and institutional summaries. Focus: small business. Uses live DuckDuckGo search results.$0.01 Basedown0 payers84% up
  32. 85api.loyalspark.online/x402-gateway/offersList P2P marketplace offers$0.01 $0.001 Base132 ms21 payers100% up
  33. 85www.getbags.app/api/v1BAGS Agent API index — machine-readable directory of the agentic payment API, MCP server, and x402 payment surface.$0.01 Base3238 ms17 payers100% up
  34. 85api.vaults.fyi/v2/vaultsRetrieves a filtered list of vaults with their basic information including address, network, associated asset details, and transactional support status.$0.002 Base1859 ms6 payers97% up
  35. 85oraclepost.higgsfield.app/api/gasCurrent gas conditions on Base, read live from a public node: gas price, base fee of the latest block, suggested priority fee, latest block number and timestamp. No parameters. No third-party API, no cache.$0.001 Base1438 ms6 payers97% up
  36. 85vme5zb7fll.execute-api.us-east-1.amazonaws.com/v1/accept/csvValidate CSV before import using a fixed JSON column specification. Checks missing/extra columns, required cells, string/integer/decimal/boolean/date types, uniqueness, allowed values and numeric/row-count bounds. Returns pass/fail with row/column error codes. POST JSON with csv and spec.columns; schemas/examples attached. Full contract: /openapi.json. Max 2,000 rows, 50 columns, 256 KiB; first 50 failures. No formulas, cross-column rules, fact checking or data repair.$0.05 Solana1048 ms6 payers92% up
  37. 85defillama.use.x402atlas.com/protocolsDeFi protocols with TVL by DefiLlama — the full list of tracked protocols with current total-value-locked, chain and category.$0.005 Base1308 ms4 payers97% up
  38. 85defillama.use.x402atlas.com/stablecoin-pricesStablecoin peg prices by DefiLlama — historical peg price of every tracked stablecoin.$0.005 Base1056 ms4 payers97% up
  39. 85scry.solanahub.de/x402/mint/:mint/riskSolana 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.$0.03 Solanadown4 payers83% up
  40. 85wazir-x402.duckdns.org/api/pt-nextPoolTogether draw-schema — volgende draw op Base/Arb/OP/Scroll$0.005 Base1042 ms4 payers97% up
  41. 85compute.lonestaroracle.xyz/reportGPU compute spot prices — best deals across Vast.ai, RunPod, AWS, Lambda + market signal + AI brief$0.05 Base1226 ms3 payers97% up
  42. 85lionx402.com/api/x402/web-search-jsonKeyless attested web search (?q=) for agent grounding. $0.025 Base USDC — agent-search band. Ed25519-attested result set.$0.025 Basedown3 payers83% up
  43. 85agent-arcade.use.x402atlas.com/trivia/dailyTrivia Daily knowledge challenge — answer one deterministically selected and shuffled question from a curated local set.$0.005 Base1375 ms3 payers97% up
  44. 85agent-arcade.use.x402atlas.com/shortest-path/dailyShortest Path daily graph — find the unique minimum-weight route in a deterministic directed or undirected graph.$0.005 Base1428 ms3 payers97% up
  45. 85agent-arcade.use.x402atlas.com/gridlock/dailyGridlock daily maze — find an optimal orthogonal route through a deterministic bounded obstacle grid.$0.005 Base1375 ms3 payers97% up
  46. 85intel.chainquery.com/v1/cddChainQuery Bitcoin Intelligence: independent Bitcoin-native on-chain data over x402, no API key. Coin Days Destroyed (CDD) spike classifier (state normal/elevated/spike/extreme + z-score vs 30-day baseline).$0.01 Base1117 ms3 payers97% up
  47. 85buildscottsbluff.com/v1/censusAmerican Community Survey 5-year demographics for Scotts Bluff County and each of its ten places, plus a 16-year trend series: population, median household and per-capita income, poverty, median home value, gross rent, housing units and owner/renter occupancy. GET /v1/census.$0.01 Base1825 ms3 payers97% up
  48. 85x402-agent-store.rileycraig14.workers.dev/chain/chain-idThe EIP-155 chain ID for any supported network via eth_chainId — the read multi-chain agents make to confirm which chain an RPC is on before signing. Across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. Free public RPC; 6 chains vs onesource's Ethereum-only coverage.$0.001 Base376 ms3 payers83% up
  49. 85verify.code402.dev/v1/chain/block-numberLatest Ethereum block height$0.005 $0.0029 Base236 ms3 payers100% up
  50. 85agentcheck-kohl.vercel.app/reportAgentCheck: independent report on an x402 seller before you pay it. Are its buyers real (repeat wallets on their own money) or funded by the seller itself, measured from 30 days of on-chain payments, plus results of our own paid test purchases where we have them. Query: ?domain=<seller-domain>. GET /sellers (free) lists covered domains.$0.002 Base169 ms3 payers75% up
  51. 85agents.daedalusdevelopmentgroup.com/v1/web-searchDDG agent-payable service request$0.005 $0.01 Base123 ms3 payers100% up
  52. 85agents.daedalusdevelopmentgroup.com/v1/embeddingsDDG agent-payable service request$0.001 $0.01 Base183 ms3 payers100% up
  53. 85api.x-402.online/v1/llmCheap LLM inference pay-per-call, no account, no API key: prompt in, completion out (DeepSeek v4, up to 2000 output tokens). Among the lowest $/call on x402. Body: {prompt, system?, max_tokens?}$0.002 $0.01 Base227 ms3 payers100% up
  54. 85api.x-402.online/v1/extractSend a URL and receive the main content of the page as clean markdown, stripped of navigation, advertising and boilerplate. The page is fetched through a French residential IP with a real Chromium browser, so JavaScript-rendered content is fully resolved and sites that reject datacenter traffic are still reachable.$0.005 $0.01 Base90 ms3 payers100% up
  55. 85api.x-402.online/v1/us/companyProfile of a US public company from SEC EDGAR: legal name, central index key, ticker symbols, exchange listings, standard industrial classification, business address and filer status. The authoritative regulatory record rather than an aggregator's copy. For agents resolving a company name to its regulatory identity before pulling financials or filings.$0.02 $0.05 Base68 ms3 payers100% up
  56. 85api.x-402.online/v1/fr/analyse-immo/partialLite property analysis for a French address: median price per square metre in the area, estimated value and an investment score. Enough to screen a shortlist of addresses cheaply before committing to depth. Upgrade to /v1/fr/analyse-immo for energy performance, environmental risks, local demographics and expected rental yield.$0.03 $0.01 Base174 ms3 payers100% up
  57. 85api.x-402.online/v1/fr/procedures-collectivesIs this French company in insolvency proceedings? Returns a synthetic status, the full history of court judgments (safeguard, receivership, liquidation) and a registry deregistration flag, taken from official BODACC court announcements.$0.03 $0.01 Base210 ms3 payers100% up
  58. 85api.x-402.online/v1/searchCheap web search (real Google results via Serper): top 10 organic results + answer box + knowledge graph. Cheaper than Exa /search on x402. Query: ?q=&gl=&hl=$0.003 $0.01 Base164 ms3 payers100% up
  59. 85agdata.shveik.dev/x402/linkedin-jobsLinkedIn job listings for a search$0.011 $0.0254 Base298 ms3 payers100% up
  60. 85twin.unykorn.org/json-canonicalCanonical JSON and its digest$0.002 $0.003 Base85 ms3 payers100% up
  61. 85aiact-api.com/articles/006$0.001 Base536 ms3 payers100% up
  62. 85agents.dyoeway.org/contactsExtract public business emails, phone numbers, and social profiles from a website. Batch-safe contact enrichment for autonomous agents. Input: website URL. Returns structured JSON.$0.01 Basedown2 payers92% up
  63. 85machineobserver.com/api/x402/historyMachine Observer premium historical snapshots across machine commerce, trust, likeness, API/data, compute, model/tool supply, and developer-adoption signals.$0.001 Base596 ms2 payers83% up
  64. 85vape-x402.vapex402.workers.dev/data/treasuryVAPE treasury — A protocol's on-chain treasury composition — total USD, own-token USD, and the own-token share (a treasury that's ~all its own token is a fragility signal).$0.01 Base596 ms2 payers83% up
  65. 85cycle.lonestaroracle.xyz/cycleUS inventory & production cycle signal (bullwhip gauge)$0.05 Base1650 ms2 payers97% up
  66. 85instagram.use.x402atlas.com/profile/:usernameFull Instagram profile by username — bio, follower and following counts, posts count, verified and business account flags, category, contact email, external and bio links, profile picture, plus the first page of recent posts and a cursor for more. Instagram profile lookup, creator and influencer stats, follower count, social audience data. No API key.$0.04 Base1600 ms2 payers97% up
  67. 85concordancehq.duckdns.org/tools/seriesTabular time-series lookup across economic indicators (FRED, World Bank, UN Comtrade), crypto TVL, weather, and stock quotes -- by source + series_id, with an optional date range.$0.01 Base1200 ms2 payers92% up
  68. 85api.brazilayer.com/v1/tributos/ncm/:codigoWhich IBS/CBS regime applies to a product, by NCM code, under Brazil's tax reform (LC 214/2025): zero rate, 60% reduction or standard, with the LEGAL BASIS returned (annex, item and the literal wording of the law) plus what taxes are in force this year of the 2026-2033 transition. Brazil is replacing 5 taxes; every seller and every buying agent must reclassify. Free sample, no payment: https://api.brazilayer.com/v1/tributos/amostra$0.005 Base668 ms2 payers83% up
  69. 85api.invoket.com/iban/resolve/batchBefore a payment run: validate up to 500 IBANs in one call, resolve bank and BIC from national bank registries, and check SEPA reachability per scheme (SCT, SCT Inst, SDD Core/B2B) against the EPC register$0.015 Base1338 ms2 payers97% up
  70. 85social.gedx402.com/v1/sociavault/instagram/reelsSociaVault API proxy — instagram-reels. Query/body matches https://docs.sociavault.com/api-reference/openapi.json. GET/POST per route; x402 per call. $0.014 USDC per request.$0.014 Base1127 ms2 payers91% up
  71. 85api.truthbear.co/gauge/agri-region[3-LEG] Agriculture chain, one grain belt (?loc=us-iowa): leading soil drought (USDM D0-D4) -> current heat stress and growing degree days -> realized crop vigour VHI - did the drought actually reach the crop (confirmation gate). A chain, not one reading: confidence = how many legs are lit, in order. Sources: USDM/NDMC, NASA POWER, NOAA STAR. Descriptive only, never a forecast or advice. No data -> 422 no_charge, not billed. $0.25 per call.$0.25 Base987 ms2 payers83% up
  72. 85api.truthbear.co/gauge/chokepoint-region[4-LEG] Maritime chokepoint passage chain, one chokepoint (?loc=hormuz, suez, panama, malacca and more): leading sea state against operating thresholds -> current anchorage congestion, vessels waiting -> realized daily transits from IMF PortWatch (confirmation gate). A chain, not one reading: confidence = how many legs are lit, in order. Sources: IMF PortWatch, NOAA, Open-Meteo. Descriptive only, never a forecast or advice. No data -> 422 no_charge, not billed. $0.25 per call.$0.25 Base896 ms2 payers83% up
  73. 85api.blockchainmoneymap.com/api/x402/tx-statusLow-cost Blockchain Money Map transaction status check for AI agents.$0.01 Base1053 ms2 payers97% up
  74. 85api.marketintelligenceapi.com/api/v1/analytics/correlationCorrelation between two numeric series$0.0089 $0.01 Base125 ms2 payers100% up
  75. 85crypto.openverbs.com/v1/orderbookLive L2 order book for a crypto perp market: aggregated bids and asks with price, size and resting-order count per level, plus the best bid/ask spread, spread % and mid price. Real-time market-depth snapshot for a coin (BTC, ETH, SOL, and more); pass `depth` for how many price levels per side. Data source: Hyperliquid (dYdX fallback).$0.002 Base848 ms2 payers83% up
  76. 85crypto.openverbs.com/v1/fundingLive perpetual-futures funding rates per market — each market's funding rate as hourly, the standard 8-hour figure and annualized %, alongside mark price and open interest. Ranked by the most extreme (|annualized|) funding by default; pass `coins` to get the funding rate for a specific market (e.g. ["BTC","ETH"]). Real-time crypto perp funding rate feed. Data source: Hyperliquid (dYdX fallback).$0.002 Base813 ms2 payers83% up
  77. 85aayatai.com/uk/bank-holidaysOfficial UK bank holidays (England & Wales, Scotland, Northern Ireland) from GOV.UK. Is a date a working day, the next holidays, working days between two dates, or the date N working days after a date (deadlines, SLAs, delivery estimates).$0.001 Base1399 ms2 payers92% up
  78. 85flat-rate-llm.kikoribera03.workers.dev/v1/content/adviceOne piece of practical advice about work, life or money, in English or Spanish. Short, concrete and usable - not a fortune cookie. Filterable by topic, with an id to avoid repeats and a seed for reproducibility.$0.005 Base478 ms2 payers83% up
  79. 85flat-rate-llm.kikoribera03.workers.dev/v1/evm/receiptReceipt of a transaction: whether it succeeded or reverted, gas used, fee actually paid, and how many logs it emitted. The call that answers did my transaction work. Via eth_getTransactionReceipt.$0.005 Basedown2 payers83% up
  80. 85flat-rate-llm.kikoribera03.workers.dev/v1/evm/feesSuggested maxFeePerGas and maxPriorityFeePerGas from the last 20 blocks of real fee history, at slow, normal and fast percentiles. Beats guessing a gas price and getting stuck in the mempool. Via eth_feeHistory.$0.005 Base318 ms2 payers83% up
  81. 85flat-rate-llm.kikoribera03.workers.dev/v1/evm/erc20-allowanceHow much of a token a spender is still allowed to move on an owner's behalf, and whether that approval is unlimited. The check to run before an approve, and the one that finds forgotten infinite approvals. Via eth_call (allowance).$0.005 Base325 ms2 payers83% up
  82. 85api.brazilayer.com/v1/pacotes/brasilEvery parameter-free endpoint of the Brazilayer catalog in ONE call, 43% cheaper than one by one: five commodity signals, three market feeds, fund flows and ranking, tax-transition calendar, deforestation ranking and open public tenders (13 endpoints, keyed by family and name). One payment, one response. Unavailable parts listed in `indisponiveis`; 503 and no charge if under half respond. Free sample, no payment: https://api.brazilayer.com/v1/pacotes/amostra$0.09 Base3958 ms2 payers100% up
  83. 85flat-rate-llm.kikoribera03.workers.dev/v1/ai/speechTurns text into natural speech in English, Spanish, French, Chinese, Japanese or Korean in one or two seconds: Deepgram Aura-2 for English and Spanish, MeloTTS for the rest. Returns a hosted audio URL valid for 24 hours (MP3 for English and Spanish, WAV otherwise) plus its size; add inline=true to also get the base64. Up to 2000 characters per call. You are only charged if the audio is delivered. No API key, no account.$0.01 Base420 ms2 payers83% up
  84. 85ichimoku-signal.onrender.com/signals/:pairConfluence trading signal for a crypto pair (top 200 coins): Ichimoku, RSI, MACD, EMA 50/200, Bollinger Bands and volume (OBV) in one call, each with its vote, plus a combined bullish/bearish/neutral signal and confidence. Live candles from Binance.US, Kraken, Gate or MEXC.$0.10 $0.15 Base98 ms2 payers100% up
  85. 85oraclepost.higgsfield.app/api/extractExtract structured items from free text: email addresses, URLs, EVM addresses, transaction hashes, numbers, hashtags, plus word and line counts. POST JSON {"text": "..."} up to 20,000 characters. Pure computation, nothing leaves the server, no cache.$0.001 Base1175 ms2 payers97% up
  86. 85oraclepost.higgsfield.app/api/premium/gasCurrent gas conditions on Base, read live from a public node: gas price, base fee of the latest block, suggested priority fee, latest block number and timestamp. No parameters. No third-party API, no cache.$0.02 Base1161 ms2 payers97% up
  87. 85oraclepost.higgsfield.app/api/premium/extractExtract structured items from free text: email addresses, URLs, EVM addresses, transaction hashes, numbers, hashtags, plus word and line counts. POST JSON {"text": "..."} up to 20,000 characters. Pure computation, nothing leaves the server, no cache.$0.02 Base1096 ms2 payers97% up
  88. 85oraclepost.higgsfield.app/api/boardPost a message on a public notice board. POST JSON {"message": "..."} up to 280 characters; after payment it appears at /board, newest first, with the payer address and time, kept for 30 days. An effect, not a data lookup. No moderation beyond length; illegal content is removed.$0.001 Base1105 ms2 payers97% up
  89. 85x402-factory.com/v1/board/cryptoAll active crypto markets with live probabilities in one call — One-call board of the most active crypto prediction markets: top markets by volume with blended live probabilities, resolution dates, and per-market slugs for drill-down. The bulk read for agents tracking the state of crypto at a glance.$0.03 $0.04 Base213 ms2 payers100% up
  90. 85agent402.tools/api/image-gen-premiumGenerate a premium image from a text prompt using GPT Image 2 (medium quality, 1024x1024). Flagship model with best detail and coherence. No API key needed; pay per call via x402. Returns base64 PNG. Prompt capped at 4000 chars.$0.30 $0.15 Base123 ms2 payers100% up
  91. 85agent402.tools/v1/metered/geminiGemini generateContent (metered tier) (from $0.001/call via x402 or MPP)$0.001 $0.0019 solana122 ms2 payers100% up
  92. 85api.magentlab.com/api/calc/sickle_rbc_exchangeNadler 1962 adult blood volume plus exponential remaining-fraction washout (Y/Y0 = e^(−X)) for sickle RBC exchange replacement pRBC volume. FCR = target_hbs / initial_hbs; X = −ln(FCR). Caller supplies hematocrits and HbS percents. Optional approx units if unit_volume_ml is sent. Deterministic published arithmetic. Not an apheresis order or medical device.$0.005 $0.007 Base274 ms2 payers100% up
  93. 85api.magentlab.com/api/calc/safeSripongpun 2023 steatosis-associated fibrosis estimator (SAFE) from age, BMI (capped at 40 in the equation), diabetes, AST, ALT, globulin in g/dL, and platelets. Deterministic published equation with citation. Rule-out below 0; rule-in above 100. Not a biopsy, fibrosis stage, FIB-4, NAFLD fibrosis score, or BARD. magent does not compute BMI from height and weight.$0.005 $0.007 Base278 ms2 payers100% up
  94. 85api.magentlab.com/api/calc/rebound_hyperbilirubinemiaChang 2017 three-variable rebound hyperbilirubinemia score: +15 if GA <38 weeks, −7 × age at phototherapy start in days, −4 × (caller AAP phototherapy threshold − TSB at termination), +50. Scores <20 correspond to a <4% chance of TSB returning to threshold within 72 hours. magent does not assay bilirubin or compute the AAP nomogram. Not Chang 2019. Not a phototherapy order.$0.005 $0.007 Base225 ms2 payers100% up
  95. 85api.magentlab.com/api/calc/pregnancy_due_datesPregnancy estimated due date from a certain LMP using ACOG Committee Opinion 700 Naegele: edd_days_from_lmp = 280 + (cycle_length_days - 28). Inputs are numeric days_since_lmp (0-294) and cycle_length_days (21-35); those bands are magent clamps. Reports gestational_age_days and days_until_edd (negative if past EDD). Not a dating ultrasound. magent does not interpret imaging. Not a delivery date order.$0.005 $0.007 Base274 ms2 payers100% up
  96. 85api.magentlab.com/api/calc/neonatal_partial_exchangePartial-exchange volume from Kumar 2004: volume_ml = (actual_hct_percent - 55) / actual_hct_percent * blood_volume_ml. Desired hematocrit is the trial's 55 percent only. Caller assigns blood volume; magent does not choose millilitres per kilogram or saline versus plasma. Not a transfusion order or indication (the trial found no long-term benefit in asymptomatic LBW). Deterministic published arithmetic with citation.$0.005 $0.007 Base289 ms2 payers100% up
  97. 85api.magentlab.com/api/calc/neonatal_eosPuopolo 2011 neonatal early-onset sepsis prior at birth (≥34 weeks) from maternal temperature, gestational age, ROM, GBS, and antibiotic timing, then Escobar 2014 posterior after a caller-assigned well, equivocal, or ill exam. Incidence intercepts 0.3-0.6 per 1000 replace the printed 47.8398 constant. Not a sepsis diagnosis or antibiotic order. magent does not examine the infant.$0.005 $0.007 Base241 ms2 payers100% up
  98. 85api.magentlab.com/api/calc/intrauterine_rbcMandelbrot 1988 intrauterine RBC transfusion volume: fetoplacental_volume_ml = 1.046 + estimated_fetal_weight_g * 0.14; volume_ml uses the unrounded fetoplacental volume times (hct_final_percent - hct_initial_percent) / hct_donor_percent. Hematocrit arm only; the paper also allowed platelet count — magent does not implement platelets. Caller-assigned estimated fetal weight; magent does not estimate weight from biometry. Not a medical device or transfusion order.$0.005 $0.007 Base286 ms2 payers100% up
  99. 85api.magentlab.com/api/calc/ed_buprenorphineED-initiated buprenorphine milligrams from D'Onofrio 2015 (JAMA; PMID 25919527): dose_mg is 8 on protocol day 1 and 16 on days 2 and 3. Take-home schedule only. Not a home-induction decision tree, not COWS scoring, and not a prescription or X-waiver. magent does not score withdrawal.$0.005 $0.007 Base279 ms2 payers100% up
  100. 85api.magentlab.com/api/calc/eat_sleep_consoleGrossman 2018 Eat, Sleep, Console functional assessment. well_managed iff eat ≥1 oz per feed or breastfeed well, sleep undisturbed ≥1 hour, and console within 10 minutes if crying. needs_increased_treatment iff not well_managed (boolean only; not a morphine dose). Not modified Finnegan. Not the later ESC Care Tool item list. magent does not examine the infant. Not a diagnosis or medical device.$0.005 $0.007 Base268 ms2 payers100% up