{"uid":"cap_JqPpCG0ivf6JjxCs1ShcG","slug":"whatchuneed-substack-crawl-b5cace60","name":"whatchuneed Substack Crawl","description":"320+ pay-per-call API endpoints across accommodation, LLM, code execution, crypto, medical, finance, and more. One API, one payment. Powered by x402 protocol.","url":"https://whatchuneed.vercel.app/api/crawl/substack","method":"POST","headers":{},"bodySchema":{"type":"object","required":["input"],"properties":{"input":{"type":"string","description":"Request input"}}},"responseSchema":{"type":"object","properties":{"result":{"type":"object","description":"Response data"},"status":{"type":"string"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.05","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":"$0.05/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.05","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_YwMUxgAGgepr-kGeeedB-","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.05","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Crawls and extracts content from a Substack publication or post given a URL or query input","exampleAgentPrompt":"Can you fetch and extract the full text and metadata from this Substack post at https://example.substack.com/p/my-article so I can read and summarize it?","exampleUseCases":[{"title":"Summarize a Substack newsletter post","prompt":"Grab the full content of this Substack article at https://platformer.news/p/the-inside-story so I can get a summary of what it covers."},{"title":"Research a Substack author's publications","prompt":"Crawl the Substack publication at https://stratechery.com and pull the latest posts and their titles so I can see what topics they've been writing about recently."},{"title":"Monitor a newsletter for keyword mentions","prompt":"Fetch the latest post from https://sinocism.substack.com and extract all the text so I can check whether it mentions anything about trade policy."}],"resultDescription":"Returns a result object containing extracted Substack content such as article body text, title, author name, publication date, and other available post metadata, along with a status field indicating success or failure.","failureModes":["Invalid or inaccessible Substack URL returns an error result","Paywalled or subscriber-only posts may return partial or no content","Rate limiting or Substack bot detection may cause failed crawl","Malformed input string causes validation error","Network timeout returns empty or null result"],"whenToPreferThis":"Choose this endpoint when you need to programmatically extract content from a specific Substack publication or post and want a pay-per-call approach without managing your own scraping infrastructure. It is particularly useful when integrating Substack content into agent workflows, summaries, or research pipelines via the x402 protocol.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T00:40:18.255Z","isFirstParty":false}