{"uid":"cap_j9IjzBfTclWUamWXIy94m","slug":"d21-social-trends-pulse-b615e00e","name":"d21 Social Trends Pulse","description":"Social Trends Pulse ($0.015): multi-source trending-topics feed for the demand-radar's #1-observed-demand category (\"social media trends\") — aggregated live from Hacker News, Lobsters, Mastodon, and Wikipedia (via this origin's own wiki_trends_pulse), deduped/merged across sources into one ranked topics list. Cheaper than wiki_trends_pulse, more sources. Body { sources?: subset of [hackernews, lobsters, mastodon, wikipedia], limit?: 1..20 }. Check free /v1/social_trends_pulse/availability first.","url":"https://draconic21-x402-api.onrender.com/v1/social_trends_pulse?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"limit":{"type":"integer","maximum":20,"minimum":1,"description":"Max merged topics returned (default 10)"},"sources":{"type":"array","items":{"enum":["hackernews","lobsters","mastodon","wikipedia"],"type":"string"},"description":"Subset of sources to query (default: all 4)"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.015","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":"$0.015/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.015","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.015","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_XfJiVWbhKftl_uVBlqoko","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.015","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Aggregates and deduplicates trending topics from Hacker News, Lobsters, Mastodon, and Wikipedia into a single ranked feed","exampleAgentPrompt":"Pull the top 10 trending topics right now from Hacker News, Lobsters, Mastodon, and Wikipedia all merged together into one ranked list.","exampleUseCases":[{"title":"Tech community pulse for newsletter","prompt":"What are the top 15 trending topics right now across Hacker News and Lobsters combined? I want a merged, deduped list to feature in my weekly tech newsletter."},{"title":"Broad social trend snapshot","prompt":"Give me today's top 10 trending topics merged from all available sources — Hacker News, Lobsters, Mastodon, and Wikipedia — so I can see what's capturing the most attention right now."},{"title":"Mastodon and Wikipedia trends only","prompt":"Pull the top 5 trending topics from just Mastodon and Wikipedia merged together — I want to see what's trending outside the usual tech-dev circles."}],"resultDescription":"A ranked, deduplicated list of up to 20 trending topics aggregated from the selected sources (Hacker News, Lobsters, Mastodon, Wikipedia), with each topic attributed to its source(s) and ranked by observed demand signal strength.","failureModes":["Invalid source name in sources array returns validation error","Limit out of range (below 1 or above 20) returns validation error","One or more upstream sources (e.g. Mastodon, Wikipedia) temporarily unavailable may result in partial results or error","Payment not provided or insufficient USDC results in 402 payment required response","Rate limiting or server overload on render.com host may cause timeout"],"whenToPreferThis":"Choose this endpoint when you need a multi-source, deduplicated trending topics feed that spans both tech/developer communities (Hacker News, Lobsters) and broader social/encyclopedia sources (Mastodon, Wikipedia) in a single ranked list. It is cheaper than calling wiki_trends_pulse alone and provides broader coverage. Prefer it over single-source trend APIs when cross-platform consensus on trending topics matters, or when you want to reduce noise through deduplication across sources.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T18:42:22.037Z","isFirstParty":false,"canonicalSlug":"d21-social-trends-pulse-b615e00e"}