{"uid":"cap_SAHTEfMLAYUs3j_nEe4ba","slug":"demandex-trending-opportunities-index-7663894d","name":"DemandEx Trending Opportunities Index","description":"Paid ($0.01 USDC via x402). Returns the top 20 active opportunity cards by score as TEASERS — { id, slug, title, category, score, signalCount, lastSeen } only. No evidence and no productAngle (buy GET /v1/opportunity for the full card). While the index is still warming and no active cards exist yet, you get a no-charge 503 corpus_warming (never an empty charged list) — poll the free GET /v1/categories to see when cards go live. Compute-first / settle-after — you are not charged on any error. Re…","url":"https://api.demandex.dev/v1/opportunities/trending","method":"GET","headers":{},"bodySchema":{"type":"object","properties":{"required":{"type":"string"},"properties":{"type":"string"}}},"responseSchema":{"type":"json","example":{"charged":true,"fetchedAt":"2026-07-18T11:45:00.000Z","opportunities":[{"id":"ckxxxx","slug":"sony-wh1000xm5-replacement-headband","score":87.4,"title":"Sony WH-1000XM5 replacement headband","category":"audio","lastSeen":"2026-07-18T10:00:00.000Z","signalCount":34}]}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_o_k_ayFpBh_qwGEK5HTvQ","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the top 20 trending market opportunity cards ranked by score as lightweight teasers, including id, slug, title, category, score, signalCount, and lastSeen.","exampleAgentPrompt":"Show me what the top trending market opportunities are right now — I want to see the highest-scored demand signals so I can decide which ones to dig into further.","exampleUseCases":null,"resultDescription":"An array of up to 20 opportunity teaser objects, each containing: id, slug, title, category, score, signalCount, and lastSeen. No full evidence or productAngle data is included — those require a separate paid call to GET /v1/opportunity. If the index is still warming, returns a 503 corpus_warming status with no charge.","failureModes":["503 corpus_warming — index is still building, no active cards exist yet; poll GET /v1/categories to see when cards go live; no charge incurred","Payment failure — x402 payment of $0.01 USDC not completed; no data returned and no charge applied","Network timeout or server error — no charge incurred per compute-first/settle-after policy"],"whenToPreferThis":"Use this endpoint when you need a quick ranked overview of the most active market opportunities without paying for full card detail. It is the cheapest entry point into the DemandEx corpus ($0.01 USDC) and ideal for dashboards, initial discovery, or deciding which opportunities to investigate with the more expensive GET /v1/opportunity full-card endpoint.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:38:23.851Z","isFirstParty":false}