{"uid":"cap_Jr1YaY1F9uryWJAao9cSx","slug":"library-forgemesh-io-qb-astronomy-space-science-shelf-3a57662b","name":"library.forgemesh.io QB Astronomy & Space Science Shelf","description":"Curated shelf: QB — 153 public-domain books including Color Images from Mars Rovers Spirit and Opportunity, Astronomy for beginners, The Story of the Heavens. Returns a ranked list with drill-down routes for full-text retrieval. No license, no API key required.","url":"https://library.forgemesh.io/qb","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"limit":{"type":"integer","description":"Max books to return (default 20, max 50)"}}},"responseSchema":{"type":"json","example":{"books":[{"year":null,"title":"Color Images from Mars Rovers Spirit and Opportunity","author":"Webster, Bob","book_id":12082,"subjects":[],"download_count":23375}],"count":5,"shelf":"QB","coverage":{"target":61015,"indexed":61015},"drill_down":["/book-metadata","/book-chapter","/book-quotes","/literature-search"]}},"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_CDMjREUj3IwbRT7sq8IP0","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 a ranked list of up to 50 public-domain astronomy and space science books from the QB curated shelf, with drill-down routes for full-text retrieval","exampleAgentPrompt":"Can you show me the top 20 public-domain astronomy books from the ForgesMesh library shelf — things like Mars rover image books or classic stargazing guides?","exampleUseCases":[{"title":"Astronomy reading list for a student","prompt":"Pull up the top 20 public-domain astronomy books I can read for free — I'm especially interested in anything about Mars rovers or beginner stargazing guides."},{"title":"Research catalog for a space history project","prompt":"I'm putting together a space history reference list — can you get me up to 50 free public-domain books on astronomy and space science, including classics like The Story of the Heavens?"},{"title":"Curated book feed for an educational app","prompt":"Fetch the full catalog of public-domain astronomy books from the QB shelf, up to 50 titles, so I can populate the reading section of my science education app."}],"resultDescription":"A ranked list of public-domain astronomy and space science books (up to 50 entries by default returning 20), each with metadata and drill-down routes that allow retrieval of the full text. Titles include works such as Color Images from Mars Rovers Spirit and Opportunity, Astronomy for Beginners, and The Story of the Heavens.","failureModes":["Payment not included or insufficient — endpoint requires $0.003 USDC via x402 protocol","Limit parameter exceeds maximum of 50 — server may reject or cap response","Invalid input schema (e.g. non-integer limit) — may return a 400 error","Network timeout or service unavailability — no cached fallback guaranteed"],"whenToPreferThis":"Choose this endpoint when you need a curated, ranked catalog of public-domain astronomy and space science books (Library of Congress classification QB) without any API key or licensing overhead. Prefer it over a full-text search endpoint when you want a browsable shelf of titles rather than passage-level results, or over generic book APIs when you specifically need free, openly accessible texts in the astronomy domain.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-16T01:04:45.902Z","isFirstParty":false}