{"uid":"cap_zde22q1zUdtuqKq1z8ZIZ","slug":"13f-institutional-holdings-manager-cik-search-09672180","name":"13F Institutional Holdings – Manager CIK Search","description":"","url":"https://x402.professorsausages.com/13f-holdings/managers/search?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","required":["chain","address"],"properties":{"chain":{"enum":["base","ethereum","bitcoin","tron","litecoin","monero","dash","zcash","bitcoin-cash","dogecoin","bitcoin-gold","verge","solana"],"type":"string","examples":["base"],"description":"Which chain the address belongs to. base and ethereum run full on-chain mode; the rest are list-only mode."},"address":{"type":"string","examples":["0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"],"maxLength":128,"description":"The address in that chain's native format (0x… for EVM, base58/bech32 otherwise). Checked against that chain's shape BEFORE the payment gate — a malformed address is a free 400, never a 402."}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_-kGz3VqEt2wH0Ji2e6pSc","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Resolves an institutional fund manager name to its SEC 13F filer CIK identifier, searching across ~8,800 managers in the directory","exampleAgentPrompt":"Can you find the SEC 13F filer CIK for Pershing Square Capital Management so I can pull their latest institutional holdings?","exampleUseCases":null,"resultDescription":"Returns the matched institutional manager's SEC CIK identifier and associated filer name/record, enabling downstream lookup of their 13F quarterly holdings filings on EDGAR.","failureModes":["Manager name not found in the ~8,800 manager directory — returns empty results or 404","Ambiguous manager name matching multiple filers — may return multiple candidates","Misspelled or partial name fails to match — requires closer spelling to directory entry","Payment failure (x402 protocol) — request rejected before processing","Rate limiting or service unavailability — HTTP 429 or 5xx error"],"whenToPreferThis":"Use this endpoint when you need to resolve a human-readable institutional fund or hedge fund manager name (e.g. 'Berkshire', 'Scion', 'Bridgewater') to a machine-readable SEC CIK before querying 13F holdings data. It is the necessary first step in any 13F holdings research pipeline where you only know the manager name, not the CIK.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T00:37:49.862Z","isFirstParty":false,"canonicalSlug":"13f-institutional-holdings-manager-cik-search-09672180"}