{"id":"423f3c8e-dcf6-4c4e-8bff-e420900e53ed","shortId":"quakvV","kind":"x402","title":"PubMed research trend analysis endpoint (currently not responding).","tagline":"PubMed research trend analysis endpoint (currently not responding).","description":"This endpoint is hosted on a Cloudflare Workers subdomain and appears intended to provide PubMed biomedical literature trend data (a \"pulse\" of research activity). The URL path suggests an API (v1) that would return trend or summary information derived from PubMed, the NIH's database of biomedical citations.\n\nHowever, during probing the endpoint returned HTTP 404 on both GET and POST requests, and no x402 payment challenge was captured. The origin site, documentation pages, pricing page, and README all return a generic Cloudflare Workers placeholder (\"There is nothing here yet\"). No OpenAPI schema, AI plugin manifest, or any other documentation was found. There is no evidence of active functionality, pricing, or supported parameters.\n\nGiven the complete absence of a working endpoint, documentation, or payment challenge, this listing is effectively a stub. The service may be under development or abandoned. Users should check back later or contact the developer for status updates.","tags":[],"capabilities":["pubmed-search","biomedical-trends","research-analytics"],"categories":["search","health"],"synonyms":["pubmed api","biomedical literature trends","research pulse","pubmed analytics","medical research trends","ncbi pubmed"],"warnings":["Endpoint returned 404 on both GET and POST — no x402 payment challenge detected","All site pages (root, /docs, /api, /pricing, /README) return placeholder content","No OpenAPI schema, pricing information, or documentation available","Service may be under development or abandoned"],"endpointUrl":"https://pubmed-trends-x402.ben-miles2.workers.dev/api/v1/pulse","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x8C05121C9617f8960Cf5b7451103192F32DE8ddE","amount":"20000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300}]},"qualityScore":"0.100","qualityRationale":"The endpoint returns 404 on all methods with no x402 challenge captured. All crawled pages show a Cloudflare Workers placeholder. No documentation, schema, pricing, or working functionality was found. This is effectively an inactive or pre-launch 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'abandon':155 'absenc':133 'activ':40,124 'ai':110 'analysi':4,12 'api':46 'appear':27 'back':159 'biomed':32,63 'biomedical literature trends' 'biomedical-trends' 'captur':85 'challeng':83,141 'check':158 'citat':64 'cloudflar':23,99 'complet':132 'contact':162 'current':6,14 'data':35 'databas':61 'deriv':55 'develop':153,164 'document':89,116,138 'effect':145 'endpoint':5,13,18,69,137 'evid':122 'found':118 'function':125 'generic':98 'get':75 'given':130 'host':20 'howev':65 'http':71 'inform':54 'intend':28 'later':160 'list':143 'literatur':33 'manifest':112 'may':150 'medical research trends' 'ncbi pubmed' 'nih':59 'noth':104 'openapi':108 'origin':87 'page':90,92 'paramet':129 'path':43 'payment':82,140 'placehold':101 'plugin':111 'post':77 'price':91,126 'probe':67 'provid':30 'pubm':1,9,31,57 'pubmed analytics' 'pubmed api' 'pubmed-search' 'puls':37 'readm':94 'request':78 'research':2,10,39 'research pulse' 'research-analytics' 'respond':8,16 'return':50,70,96 'schema':109 'servic':149 'site':88 'status':166 'stub':147 'subdomain':25 'suggest':44 'summari':53 'support':128 'trend':3,11,34,51 'updat':167 'url':42 'user':156 'v1':47 'work':136 'worker':24,100 'would':49 'x402':81 'yet':106","prices":[{"id":"55de9f8d-ad79-447b-96a0-ee67bdc93fa1","listingId":"423f3c8e-dcf6-4c4e-8bff-e420900e53ed","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":null,"chain":"base","payTo":"0x8C05121C9617f8960Cf5b7451103192F32DE8ddE","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD 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https://pubmed-trends-x402.ben-miles2.workers.dev/api/v1/pulse","exampleRequest":null,"exampleResponse":null,"schema":null,"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"Endpoint returned 404 on POST and GET probe attempts","source_url":"https://pubmed-trends-x402.ben-miles2.workers.dev/api/v1/pulse"},{"claim":"All crawled pages return 'There is nothing here yet' placeholder","source_url":"https://pubmed-trends-x402.ben-miles2.workers.dev"}],"useCases":["Tracking emerging biomedical research topics over time","Summarizing publication trends in specific medical fields","Monitoring PubMed activity for drug discovery or clinical research"],"bestFor":["Researchers monitoring biomedical publication trends","AI agents needing structured PubMed trend data","Health-tech applications requiring literature analytics"],"notFor":["Production use — endpoint is not currently live","Full-text article retrieval (PubMed abstracts only via NIH 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