{"uid":"cap_Dd5ic8gGtq-V4XIYud8ap","slug":"hacker-news-dev-sentiment-engagement-lookup-aeda3815","name":"Hacker News Dev Sentiment & Engagement Lookup","description":"Hacker News engagement / dev-sentiment for a project or topic: story count, total & average points and comments, and the top stories (title/url/points/comments/date). From the keyless HN Algolia search API.","url":"https://payai.agentstools.dev/dev/hn","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","required":["query"],"properties":{"days":{"type":"integer","maximum":3650,"minimum":1,"description":"Look-back window in days (default 365)"},"query":{"type":"string","description":"Free-text search query (project/topic name)"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.003","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":"$0.003/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.003","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_Ckry-RZ3N3ZpM3wUhqPlV","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.003","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns Hacker News engagement metrics for a project or topic: story count, total/average points and comments, and top story details, via the HN Algolia search API.","exampleAgentPrompt":"How much buzz has 'Bun' been getting on Hacker News over the last 180 days? Give me the story count, average points, and the top posts.","exampleUseCases":null,"resultDescription":"Returns a summary object with the total number of HN stories matching the query, total and average points and comments across those stories, and a list of top stories each with title, URL, point count, comment count, and publication date.","failureModes":["Empty results if query matches no HN stories in the specified window","Algolia API rate limiting or downtime causing upstream failures","Invalid days parameter (must be between 1 and 3650) returning a validation error","Very broad queries returning noisy/irrelevant stories"],"whenToPreferThis":"Use this endpoint when you need quantitative Hacker News engagement data — story count, points, comments — for a project, library, framework, or tech topic, especially when assessing developer-community interest or open-source traction. Prefer this over generic web search when you specifically want HN-community signal aggregated over a configurable time window.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T12:32:41.067Z","isFirstParty":false}