{"uid":"cap_B2qeUud7SGzgDixsW6GGC","slug":"api-cryptoetfsentinel-com-9824776e","name":"Crypto ETF Sentinel — Single Issuer POS AM Profile","description":"Crypto ETF Sentinel — Latest POS AM-extracted operational profile for one US spot crypto ETF issuer: custodian, sponsor fee, AP counts, in-kind eligibility, basket size. Use when you need one fund's current plumbing terms. Pass the issuer's SEC CIK as cik.","url":"https://api.cryptoetfsentinel.com/v1/profiles/issuer","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","required":[],"properties":{"cik":{"type":"string","pattern":"^[0-9]{1,10}$","description":"Zero-padded SEC CIK identifier (e.g. ``0001980994``). Optional — pass one to target a specific issuer (discover CIKs via /v1/issuers); omit to get the largest issuer by AUM."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","required":["data"],"properties":{"data":{"description":"The endpoint payload — type varies per route"},"meta":{"type":"object","properties":{"limit":{"type":["integer","null"]},"total":{"type":["integer","null"]},"offset":{"type":["integer","null"]}}},"error":{"type":["string","null"]}}}}}}},"responseSchema":null,"example":{"request":{"input":{"type":"http","method":"GET","queryParams":{"cik":"0001980994"}}},"response":{"data":{"cik":"0001980994","custodian":"Coinbase Custody","fee_delta":null,"basket_size":4000,"filing_date":"2025-07-02","sponsor_fee":"0.25%","ap_count_cash":2,"reference_rate":"CME CF Bitcoin Reference Rate","ap_count_inkind":null,"inkind_eligible":true,"custodian_changed":false,"fee_waiver_expiry":null,"ap_count_cash_delta":null},"meta":{"note":null,"page":null,"limit":null,"total":null,"offset":null,"full_count":null},"error":null}},"exampleRequest":{"cik":"0001980994"},"tags":["x402"],"displayCostAmount":"0.03","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","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":"$0.03/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_REhh5wBzQx2Jtr_tlQJVC","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.03","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the latest POS AM-extracted regulatory profile for one US spot crypto ETF issuer, including custodian, sponsor fee, authorized participants, in-kind eligibility, and basket size, identified by SEC CIK.","exampleAgentPrompt":"Pull the POS AM profile for the iShares Bitcoin Trust ETF — I need the custodian, sponsor fee, authorized participants, in-kind eligibility, and basket size; their SEC CIK is 0001980994.","exampleUseCases":null,"resultDescription":"A structured object containing the latest POS AM-extracted profile for the requested issuer: custodian name, sponsor fee (expense ratio), list of authorized participants (APs), whether in-kind creation/redemption is eligible, and basket size — all sourced from SEC POS AM filings.","failureModes":["Invalid or non-numeric CIK returns a 400 validation error","CIK not found in the Crypto ETF Sentinel database returns a 404","CIK belongs to a non-crypto or non-spot ETF issuer — no profile available","Payment not included or insufficient — 402 Payment Required","POS AM filing not yet processed — partial or missing fields in response","Rate limiting or service unavailability — 429 or 5xx errors"],"whenToPreferThis":"Use this endpoint when you need structured regulatory profile data (custodian, fee, APs, basket size, in-kind eligibility) for a specific US spot crypto ETF issuer identified by SEC CIK. Prefer this over the bulk profiles endpoint when querying a single issuer to minimize cost, and over the XBRL snapshot endpoint when you need POS AM prospectus-sourced structural details rather than financial metrics like AUM or NAV.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T06:42:35.501Z","isFirstParty":false}