{"uid":"cap_SZgxVJsorycy4w7f7f88m","slug":"cerwal-substack-scraper-928aec37","name":"Cerwal Substack Scraper","description":"Web scraping and search for AI agents. No auth, no subscriptions. Pay per request in USDC via x402.","url":"https://cerwal.vercel.app/api/substack","method":"POST","headers":{},"bodySchema":{"type":"object","required":["url"],"properties":{"url":{"type":"string","description":"Substack URL"}}},"responseSchema":{"type":"object","properties":{"data":{"type":"object"},"success":{"type":"boolean"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","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":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_QSp_JTZe0bPu9sS6zWVPk","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Fetches and extracts content from a Substack publication URL, returning structured post or profile data.","exampleAgentPrompt":"Can you pull the content from this Substack post for me — https://example.substack.com/p/my-post — and tell me what it says?","exampleUseCases":[{"title":"Monitor competitor newsletter content","prompt":"Fetch the latest content from https://stratechery.substack.com so I can see what topics they're covering this week."},{"title":"Research author writing style","prompt":"Scrape this Substack profile at https://paulgraham.substack.com and extract all the post titles and summaries so I can analyze their writing style."},{"title":"Summarize a paywalled Substack article","prompt":"Get the content from https://mattstoller.substack.com/p/the-monopoly-problem and summarize the key arguments for me."}],"resultDescription":"Returns a JSON object with a success boolean and a data object containing the scraped Substack page content, which may include post body text, title, author, publication metadata, and other structured fields extracted from the given URL.","failureModes":["Invalid or non-Substack URL returns an error or empty data","Paywalled content may return partial or no article body","Network timeouts if Substack is slow to respond","Malformed URL input causes request failure","Substack may block scraping, resulting in empty or error response"],"whenToPreferThis":"Use this endpoint when you specifically need to extract content from a Substack URL without requiring authentication or a subscription. It is ideal for AI agents that need to read newsletter content on-demand and pay per request in USDC via x402, avoiding API key management or monthly subscription overhead.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T06:35:19.706Z","isFirstParty":false}