{"uid":"cap_j8JPW9L4puF_w3RofSjYU","slug":"sec-ipo-expected-listings-effect-8-a12b-signal-ranker-79509e0e","name":"SEC IPO Expected Listings (EFFECT + 8-A12B Signal Ranker)","description":"Imminent IPO listings inferred from SEC EFFECT notices and 8-A12B exchange registrations — strongest signals first","url":"https://x402.professorsausages.com/ipo-calendar/expected","method":"GET","headers":{},"bodySchema":{"type":"object","required":["input"],"properties":{"input":{"type":"object"},"output":{"type":"object"}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.02","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":"$0.02/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_O4IZFOZyH0yD3DZUAoGnS","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns imminent IPO candidates ranked by signal strength, inferred from SEC EFFECT notices and 8-A12B exchange registration filings","exampleAgentPrompt":"Show me the companies closest to IPO right now — the ones with the strongest SEC EFFECT and 8-A12B signals — ranked from most imminent to least.","exampleUseCases":null,"resultDescription":"A timestamped list of companies ranked by IPO imminence, each with CIK, company name, registration form (S-1 or F-1), current stage (registered/expected/dormant), signal strength (strong/moderate/weak), EFFECT notice date, 8-A12B filing date, SIC code and description, SPAC indicator, foreign private issuer flag, amendment count, and first/last filing dates. Includes a disclaimer and total count.","failureModes":["No companies currently in 'expected' stage — returns empty companies array with count 0","SEC EDGAR data lag — signals may be hours behind actual filings","SPAC and non-SPAC registrations mixed together if not filtered downstream","Stage classification may lag if EDGAR batch processing is delayed"],"whenToPreferThis":"Use this endpoint when you need a pre-ranked, signal-filtered view of imminent IPOs derived from SEC EDGAR filings, specifically EFFECT notices and 8-A12B exchange registrations. Prefer this over raw EDGAR queries when you want the strongest signals surfaced first without parsing filings yourself. Use the sibling full-timeline endpoint when you need the complete filing history for a single issuer.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-14T18:59:09.058Z","isFirstParty":false}