{"uid":"cap_EPsZCjP43Au8W9ijcXNW9","slug":"free-books-1620s-04c0e992","name":"free-books-1620s","description":"Free books first published in the 1620s: public-domain works dated 1620-1629 in the catalogue (Internet Archive scans and dated Gutenberg editions), most downloaded first, with download links. Period reading and historical research. $0.01 per page of 20.","url":"https://library.intel.rallylive.ca/library/books/1620s?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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_dAlth5OuzJAyIKpN7OqPn","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 list of public-domain books first published in the 1620s (1620–1629), sorted by most downloaded, with download links from Internet Archive and Project Gutenberg.","exampleAgentPrompt":"Can you pull up a list of free public-domain books from the 1620s — the most downloaded ones — and give me links to download them?","exampleUseCases":[{"title":"Historical research primary source discovery","prompt":"I'm researching early 17th century political thought — can you find me the most popular free downloadable books published in the 1620s so I can look for primary sources?"},{"title":"Period reading list for literature class","prompt":"I'm teaching a course on early modern literature. Can you get me a list of free books from the 1620s, sorted by popularity, so I can recommend some to students?"},{"title":"Browsing public domain classics for personal reading","prompt":"I want to read something from the 1620s — can you show me the most downloaded free public-domain books from that decade with links so I can pick one to read?"}],"resultDescription":"A paginated list (20 items per page) of public-domain books first published between 1620 and 1629, sorted by most downloaded, including titles, authors, publication dates, and download links from Internet Archive scans and Project Gutenberg editions.","failureModes":["No results on a given page if catalogue has fewer entries than expected","Downstream unavailability of Internet Archive or Gutenberg links in the response","Payment failure (x402) if USDC balance is insufficient — endpoint returns 402 status","Empty or malformed response if the catalogue index is temporarily unavailable"],"whenToPreferThis":"Choose this endpoint when you need a curated, pre-filtered list of public-domain books specifically from the 1620s decade, ranked by popularity, without having to query Internet Archive or Gutenberg directly. It is ideal for agents doing historical research, building reading lists, or surfacing period-specific literature with minimal filtering logic.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-16T18:39:36.583Z","isFirstParty":false,"canonicalSlug":"free-books-1620s-04c0e992"}