{"id":"835131ba-b284-453d-88fb-839961b7f8e6","shortId":"gydgE6","kind":"x402","title":"PubMed emerging-trends endpoint (x402) — currently not responding.","tagline":"PubMed emerging-trends endpoint (x402) — currently not responding.","description":"This endpoint is hosted on a Cloudflare Workers subdomain and appears to be intended as an x402-payable API for retrieving emerging trends from PubMed biomedical literature. The URL path `/api/v1/emerging` suggests it would return data about rising research topics, keywords, or publication trends drawn from the PubMed database.\n\nHowever, during probing the endpoint returned HTTP 404 on both GET and POST requests rather than the expected 402 Payment Required challenge. The root domain and all auxiliary paths (/docs, /api, /pricing, /README) display a generic Cloudflare Workers placeholder page stating \"There is nothing here yet.\" No OpenAPI schema, documentation, pricing information, or ai-plugin manifest was found. The endpoint appears to be either not yet deployed, temporarily offline, or abandoned.\n\nWithout a live 402 challenge, there is no way to confirm pricing, supported payment methods, response format, or actual capabilities. The listing is retained as a stub based on the URL structure and naming convention, but users should not expect functional service at this time.","tags":[],"capabilities":["pubmed-trends","biomedical-literature","emerging-topics","x402-payment"],"categories":["search","bio"],"synonyms":["PubMed trends","biomedical research trends","emerging research topics","medical literature analytics","PubMed keyword trends"],"warnings":["Endpoint returned 404 on both GET and POST — no x402 challenge detected","All crawled pages show generic 'nothing here yet' Cloudflare Workers placeholder","No documentation, OpenAPI schema, or pricing information available","Endpoint may be undeployed, under development, or abandoned"],"endpointUrl":"https://pubmed-trends-x402.ben-miles2.workers.dev/api/v1/emerging","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x8C05121C9617f8960Cf5b7451103192F32DE8ddE","amount":"50000","scheme":"exact","network":"eip155:8453","maxTimeoutSeconds":300}]},"qualityScore":"0.100","qualityRationale":"The endpoint returns 404 on all methods, no 402 challenge was captured, and every crawled page shows a Cloudflare Workers placeholder. No documentation, schema, or pricing exists. This is effectively a non-functional 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'probe':71 'public':62 'pubm':1,10,44,67 'pubmed-trends' 'rather':83 'request':82 'requir':89 'research':58 'respond':9,18 'respons':156 'retain':164 'retriev':40 'return':54,74 'rise':57 'root':92 'schema':117 'servic':182 'state':109 'structur':172 'stub':167 'subdomain':27 'suggest':51 'support':153 'temporarili':137 'time':185 'topic':59 'trend':4,13,42,63 'url':48,171 'user':177 'way':149 'without':141 'worker':26,106 'would':53 'x402':6,15,36 'x402-payable':35 'x402-payment' 'yet':114,135","prices":[{"id":"6807329b-2bad-4dc4-b92b-df39c02e7055","listingId":"835131ba-b284-453d-88fb-839961b7f8e6","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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