{"uid":"cap_w3Z5nrqjD29SVhJGUo414","slug":"answerpool-auditor-network-b4db40b1","name":"AnswerPool Auditor Network","description":"AnswerPool turns SEC EDGAR, the Federal Register, USAspending, NIH, BLS and OpenAlex into structured JSON answers that AI agents and developers fetch in one call. 69 endpoints free, no account; derived analyses $0.02–$0.05 per call by card credits or USDC (x402). MCP server, full provenance.","url":"https://answerpool.io/v1/graph/auditor","method":"GET","headers":{},"bodySchema":{"type":"object","$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","title":"AuditorIn","required":["name"],"properties":{"name":{"type":"string","title":"Name","maxLength":80,"minLength":3,"description":"Audit firm, e.g. \"Ernst & Young LLP\"."},"limit":{"type":"integer","title":"Limit","default":25,"maximum":100,"minimum":1,"description":"Maximum client companies returned, ordered by matching filing count descending then CIK. Default 25."},"lookback_days":{"type":"integer","title":"Lookback Days","default":400,"maximum":1825,"minimum":30,"description":"Window in days over the 10-K filing date, counted back from today. Default 400, about one annual reporting cycle."}},"additionalProperties":false}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"as_of":"2026-09-02T22:00:00Z","count":1,"auditor":"Deloitte","companies":[{"cik":"0000320193","forms":["10-K"],"company":"Apple Inc.","filings":1,"matched":["Deloitte"],"latest_filed":"2025-11-01"}],"total_filing_matches":812}},"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_4IKCFsGBgz-r1g9Za_YcO","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 all public companies that name a given audit firm in their 10-K annual reports, with filing counts and dates, enabling auditor concentration and shared-auditor network analysis.","exampleAgentPrompt":"Which public companies named 'Ernst & Young LLP' as their auditor in annual 10-K filings over the last 400 days? Give me up to 50 results with filing counts and the most recent filing dates.","exampleUseCases":[{"title":"Auditor concentration market share analysis","prompt":"Show me all public companies that named 'Deloitte & Touche LLP' in their 10-K filings over the past two years — I want to understand how dominant they are and which registrants they audit."},{"title":"Shared auditor network for due diligence","prompt":"I'm doing due diligence on a company and want to know what other public companies share their auditor, 'Grant Thornton LLP' — pull up to 100 companies from the last 400 days of annual reports."},{"title":"Auditor switching and recent engagement detection","prompt":"Which companies have named 'BDO USA LLP' in their annual reports in the last 90 days? I'm tracking recent auditor engagements and want the latest filing dates for each registrant."}],"resultDescription":"Returns a JSON object with the queried auditor name, an as-of timestamp, total filing matches, a count of matched companies, and an array of company records each containing the CIK, company name, number of filings matched, form types (e.g. 10-K), the latest filing date, and matched text snippets. Includes a disclaimer note about text-mention proxy methodology.","failureModes":["Audit firm name too short (< 3 characters) returns validation error","Name not found in any filing returns empty companies array with count 0","lookback_days outside 30–1825 range returns parameter validation error","limit outside 1–100 range returns validation error","False positives possible: auditor name mentioned in non-auditor contexts (predecessor auditor, litigation references) as noted in response disclaimer"],"whenToPreferThis":"Use this endpoint when you need to identify which SEC-registered public companies are audited by a specific firm, based on full-text search of 10-K filings on EDGAR. Prefer this over generic EDGAR search when you want structured, aggregated results per registrant with filing counts, or when you need to map auditor concentration or shared-auditor networks in a single call. Best suited for financial research, governance analysis, audit market studies, or due diligence workflows.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:48:53.699Z","isFirstParty":false}