{"uid":"cap_jOL2mkbjYHqn4NPeILhRA","slug":"free-books-on-human-alien-encounters-project-gutenberg-internet-archive-8e509457","name":"Free Books on Human-Alien Encounters (Project Gutenberg + Internet Archive)","description":"Free public-domain books on \"Human-alien encounters\": browse the catalogue's works tagged with that Library of Congress subject (463 in Project Gutenberg alone, plus Internet Archive scans), ranked by relevance and popularity, with direct epub/txt/html download links. Add words to narrow by title or author. Re-verified daily. $0.01 per page of 20.","url":"https://intel.rallylive.ca/library/subject/human-alien-encounters","method":"GET","headers":{},"bodySchema":{"type":"object","$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"],"type":"string"},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"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_OYJp6hdy869i6Fp5pWD6Z","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 a paginated catalogue of free public-domain books tagged with the 'Human-alien encounters' Library of Congress subject, ranked by relevance and popularity, with direct epub/txt/html download links.","exampleAgentPrompt":"Can you pull up a list of free public-domain books about human-alien encounters — something from Project Gutenberg or the Internet Archive — and give me epub or text download links for the most popular ones?","exampleUseCases":[{"title":"Classic alien contact reading list","prompt":"I want to explore classic public-domain stories about humans meeting aliens — can you find the most popular free books on that topic and give me download links in epub or plain text format?"},{"title":"Narrowing search by author or title","prompt":"Find me free books about alien encounters written by H.G. Wells or with 'invasion' in the title — I want direct download links for epub or txt versions."},{"title":"Research corpus for AI training","prompt":"I need a catalogue of public-domain texts on human-alien encounters from Project Gutenberg and Internet Archive — can you fetch a page of 20 results with their download links so I can build a reading corpus?"}],"resultDescription":"A ranked page of up to 20 public-domain book records matching the 'Human-alien encounters' subject tag, each including title, author, relevance/popularity ranking, and direct download links in epub, txt, and/or html formats. Results are sourced from Project Gutenberg (463+ titles) and Internet Archive and are re-verified daily.","failureModes":["No results returned if query keywords match no titles or authors in the catalogue","Pagination beyond available results returns empty page","Occasional stale links if a source (Internet Archive) moves content between daily re-verification cycles","Payment failure if USDC balance is insufficient for the $0.01 per call fee"],"whenToPreferThis":"Choose this endpoint when you need free, legally downloadable public-domain books specifically tagged with the 'Human-alien encounters' Library of Congress subject, with direct epub/txt/html links and daily-verified availability. Prefer it over a general web search when you want structured, pre-filtered library catalogue results rather than scraping arbitrary sites.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T07:13:53.805Z","isFirstParty":false}