# Services from answerpool.io on Zero

> answerpool.io serves 79 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/answerpool.io
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/answerpool.io/health.json

## Services

- [AnswerPool 13F Changes](https://www.zero.xyz/c/answerpool-13f-changes-ee0a66b2/llms.txt): $0.05/call via x402. Returns quarter-over-quarter 13F portfolio changes for a given SEC filer — new, exited, increased, and decreased positions with share counts and USD values for both periods.
- [AnswerPool Comment Deadline Calendar](https://www.zero.xyz/c/answerpool-comment-deadline-calendar-5dbf0777/llms.txt): $0.02/call via x402. Returns federal proposed rules whose public comment windows close within a specified number of days, sorted soonest-first with exact day-counts, optionally filtered by agency or keyword topic.
- [AnswerPool SEC XBRL Growth Metrics](https://www.zero.xyz/c/answerpool-sec-xbrl-growth-metrics-bbd2720b/llms.txt): $0.05/call via x402. Returns structured JSON with historical revenue, net income, and asset growth rates (1Y, 3Y CAGR, 5Y CAGR) computed from SEC EDGAR XBRL filings for any public US company
- [AnswerPool 13F Crowding](https://www.zero.xyz/c/answerpool-13f-crowding-2bd4d5ad/llms.txt): $0.05/call via x402. Returns a multi-quarter trend of institutional 13F holder counts, share totals, and AUM for a named issuer, with entering/exiting manager lists and a directional trend label.
- [AnswerPool EDGAR Full-Text Search](https://www.zero.xyz/c/answerpool-edgar-full-text-search-bd6dd8bc/llms.txt): $0.02/call via x402. Searches the full text of SEC EDGAR filings for any phrase or keyword, filtered by date range and optional form type, returning matching filings with filer details and document URLs.
- [AnswerPool Insider Buy Clusters](https://www.zero.xyz/c/answerpool-insider-buy-clusters-a40b63ec/llms.txt): $0.05/call via x402. Returns a list of issuers where 3 or more distinct officers or directors bought shares within a rolling window, with combined buy USD, insider count, and names per issuer.
- [AnswerPool Insider Screen](https://www.zero.xyz/c/answerpool-insider-screen-7a0ffa0c/llms.txt): $0.02/call via x402. Screen SEC Form 4 insider transactions market-wide with filters for transaction code, buy/sell direction, minimum USD value, owner role, and time window, returning parsed transactions ranked by value.
- [AnswerPool Restatement Filings](https://www.zero.xyz/c/answerpool-restatement-filings-3024f67f/llms.txt): $0.02/call via x402. Lists SEC 8-K filings disclosing non-reliance on previously issued financials (Item 4.02) — a pre-filtered restatement alert feed across all public companies.
- [AnswerPool Daily Rulemaking Digest](https://www.zero.xyz/c/answerpool-daily-rulemaking-digest-4b39776c/llms.txt): $0.02/call via x402. Returns all federal rules and proposed rules published on a given date, sorted by significance, with deadline flags and countdown days, optionally filtered to one agency.
- [AnswerPool SEC Watchlist](https://www.zero.xyz/c/answerpool-sec-watchlist-0d2e37ba/llms.txt): $0.02/call via x402. Polls flagged SEC events (8-K items, insider trades, capital raises) for up to 25 tickers in a single paginated call with cursor-based incremental fetching.
- [AnswerPool 13F Manager Holdings](https://www.zero.xyz/c/answerpool-13f-manager-holdings-c2108487/llms.txt): $0.02/call via x402. Retrieve an institutional investment manager's latest 13F-HR reported holdings — issuer names, CUSIPs, FIGIs, share counts, and USD values — sorted by largest position first.
- [AnswerPool 8-K History](https://www.zero.xyz/c/answerpool-8-k-history-0799a2a8/llms.txt): $0.02/call via x402. Retrieve a company's full 8-K filing history filtered by SEC item codes (e.g. 5.02 officer changes, 2.02 earnings) and date, with item codes pre-mapped per filing.
- [AnswerPool Auditor Changes](https://www.zero.xyz/c/answerpool-auditor-changes-2e547713/llms.txt): $0.02/call via x402. Lists SEC 8-K filings reporting auditor changes (Item 4.01) market-wide, providing company, timestamp, and filing links for accounting-risk monitoring.
- [AnswerPool Bankruptcy Filings](https://www.zero.xyz/c/answerpool-bankruptcy-filings-f16afe11/llms.txt): $0.02/call via x402. Lists SEC 8-K filings reporting bankruptcy or receivership (Item 1.03) market-wide, with company identifiers, timestamps, distress flags, and filing links.
- [AnswerPool Busiest Filers](https://www.zero.xyz/c/answerpool-busiest-filers-fbb2ae43/llms.txt): $0.02/call via x402. Ranks SEC EDGAR filers by filing volume over a configurable time window (up to 5 years), optionally filtered to a specific form type.
- [AnswerPool CFR Part Watch](https://www.zero.xyz/c/answerpool-cfr-part-watch-22e962da/llms.txt): $0.02/call via x402. Returns federal rules and proposed rules that amend a specific CFR title and part, sorted newest first with deadline flags for comment periods and effective dates.
- [AnswerPool Company Peers](https://www.zero.xyz/c/answerpool-company-peers-d6eb4b63/llms.txt): $0.05/call via x402. Returns the most similar public companies to a given ticker or CIK, ranked by financial similarity using SEC XBRL data including assets, revenue, margins, and distance scores.
- [AnswerPool Federal Register Search](https://www.zero.xyz/c/answerpool-federal-register-search-62292048/llms.txt): $0.005/call via x402. Full-text search over all US federal rules, proposed rules, and notices across ~470 agencies, returning documents with computed comment and effective-date deadlines.
- [AnswerPool SEC XBRL Financial Ratios](https://www.zero.xyz/c/answerpool-sec-xbrl-financial-ratios-c844c1a8/llms.txt): $0.05/call via x402. Computes key financial ratios (net margin, debt-to-equity, etc.) from SEC EDGAR XBRL filings for any public US company, returned as structured JSON with full provenance.
- [AnswerPool Peers Percentile](https://www.zero.xyz/c/answerpool-peers-percentile-54d5eb9c/llms.txt): $0.05/call via x402. Returns percentile rankings for a public company's key financial metrics (margin, revenue, assets) against a same-industry peer group derived from SEC EDGAR XBRL data.
- [AnswerPool Cyber Incidents](https://www.zero.xyz/c/answerpool-cyber-incidents-81bd002d/llms.txt): $0.02/call via x402. Lists SEC 8-K filings disclosing material cybersecurity incidents (Item 1.05) market-wide, with company identifiers, timestamps, and filing links.
- [AnswerPool Delisting Notices](https://www.zero.xyz/c/answerpool-delisting-notices-f129e676/llms.txt): $0.02/call via x402. Lists SEC 8-K filings reporting delisting notices or listing-rule deficiencies (Item 3.01) market-wide, with company identifiers, timestamps, and filing links.
- [AnswerPool Director Interlocks](https://www.zero.xyz/c/answerpool-director-interlocks-83c4db29/llms.txt): $0.05/call via x402. Returns a board and officer interlock map for any public company, linking insiders from SEC Forms 3/4/5 to every other issuer they file for with roles on both sides.
- [AnswerPool Distress Screen](https://www.zero.xyz/c/answerpool-distress-screen-1effaa57/llms.txt): $0.05/call via x402. Screens SEC EDGAR filings for corporate distress signals — bankruptcy, delisting notices, restatements, and impairments — ranked by salience score in a single call.
- [AnswerPool Docket Citers](https://www.zero.xyz/c/answerpool-docket-citers-7b789734/llms.txt): $0.02/call via x402. Returns which public companies cite a specific agency docket ID or RIN in their SEC filings, with filing counts and dates per registrant.
- [AnswerPool Effective Date Calendar](https://www.zero.xyz/c/answerpool-effective-date-calendar-e7433e4e/llms.txt): $0.02/call via x402. Returns final federal rules taking effect within the next N days, sorted by effective date with exact day-counts, optionally filtered by agency.
- [AnswerPool Filing Cadence](https://www.zero.xyz/c/answerpool-filing-cadence-3cf1ce84/llms.txt): $0.02/call via x402. Returns a filer's year-by-year SEC filing counts broken down by form type since 2021, enabling detection of disclosure gaps, spikes, or stopped reporting.
- [AnswerPool Filing Calendar](https://www.zero.xyz/c/answerpool-filing-calendar-0c2e98ed/llms.txt): $0.02/call via x402. Returns a public company's SEC filing cadence including fiscal year end, last 10-K/10-Q dates, recent quarterly dates, and naive next-report estimates derived from historical spacing.
- [AnswerPool Impairment Filings](https://www.zero.xyz/c/answerpool-impairment-filings-f1c843bb/llms.txt): $0.02/call via x402. Lists SEC 8-K filings disclosing material impairments (Item 2.06) market-wide, pre-filtered with company name, timestamp, and EDGAR filing links.
- [AnswerPool Industry Roster](https://www.zero.xyz/c/answerpool-industry-roster-ffd70614/llms.txt): $0.02/call via x402. Returns all SEC registrants in a given SIC industry, ranked by size, with total assets and revenue from XBRL filings — resolved by SIC code, CIK, or ticker.
- [AnswerPool SEC Insider Transactions](https://www.zero.xyz/c/answerpool-sec-insider-transactions-c6dc60ce/llms.txt): $0.005/call via x402. Returns parsed Form 4/5 insider transaction lines for a given issuer, including date, transaction code, shares, price, USD value, security type, post-holdings, owner role, and Rule 10b5-1 flag.
- [AnswerPool M&A Events](https://www.zero.xyz/c/answerpool-m-a-events-ff0fda98/llms.txt): $0.02/call via x402. Returns a paginated, market-wide feed of SEC 8-K filings reporting completed acquisitions, dispositions, or changes of control (Items 2.01 and 5.01) with company metadata and filing links.
- [AnswerPool Technology Momentum](https://www.zero.xyz/c/answerpool-technology-momentum-b6254297/llms.txt): $0.05/call via x402. Computes a momentum score and trend analysis for a technology topic using citation growth, publication volume, and institutional adoption from open research data.
- [AnswerPool Officer Changes](https://www.zero.xyz/c/answerpool-officer-changes-ae1069db/llms.txt): $0.02/call via x402. Lists SEC 8-K filings reporting officer or director changes (Item 5.02) across all public companies, with company name, timestamp, and filing links.
- [AnswerPool Rule Impact Map](https://www.zero.xyz/c/answerpool-rule-impact-map-bd2e3fc0/llms.txt): $0.05/call via x402. Maps a Federal Register rule to the public companies whose SEC filings cite its docket, RIN, or CFR part, ranked by citation strength with filing counts and dates.
- [AnswerPool SEC Daily Filing Digest](https://www.zero.xyz/c/answerpool-sec-daily-filing-digest-9a3dcbbf/llms.txt): $0.005/call via x402. Returns today's SEC filings ranked by salience — surfacing bankruptcies, restatements, cyber incidents, insider clusters, and large raises with flags and direct links in a single call.
- [AnswerPool Shares Outstanding](https://www.zero.xyz/c/answerpool-shares-outstanding-7354e315/llms.txt): $0.02/call via x402. Returns deduplicated common shares outstanding time series from SEC XBRL filings for a given company, by period.
- [AnswerPool Significant Rule Tracker](https://www.zero.xyz/c/answerpool-significant-rule-tracker-f852d7e1/llms.txt): $0.02/call via x402. Returns only OIRA-reviewed E.O. 12866 significant federal rules and proposed rules, newest first, with deadline flags and optional agency filtering.
- [AnswerPool XBRL Compare](https://www.zero.xyz/c/answerpool-xbrl-compare-0e8abf05/llms.txt): $0.05/call via x402. Compare a single XBRL financial metric across up to 10 public company tickers, returning each company's latest reported value ranked side-by-side with period end dates and SEC tags.
- [AnswerPool XBRL Financials](https://www.zero.xyz/c/answerpool-xbrl-financials-45c65d69/llms.txt): $0.02/call via x402. Returns normalized key financial metrics (revenue, net income, operating cash flow, assets, liabilities, capex, R&D, shares) for a single SEC filer across up to eight reported periods, sourced from EDGAR XBRL data.
- [AnswerPool XBRL Frame](https://www.zero.xyz/c/answerpool-xbrl-frame-4b1b1456/llms.txt): $0.05/call via x402. Rank all SEC filers on a single XBRL financial metric for a given period, returning top-N entity values and the total filer count.
- [AnswerPool 13F Holders](https://www.zero.xyz/c/answerpool-13f-holders-8cbcad4c/llms.txt): $0.02/call via x402. Lists institutional holders of a specific issuer from the latest 13F filing period, ranked by position size, with manager name, value, shares, and put/call details.
- [AnswerPool CFR Citers](https://www.zero.xyz/c/answerpool-cfr-citers-2af14728/llms.txt): $0.02/call via x402. Returns public companies that cite a specific CFR title and part in their SEC filings, with filing counts, form types, and dates, enabling regulatory exposure screening.
- [AnswerPool IPO Calendar](https://www.zero.xyz/c/answerpool-ipo-calendar-d2cc2d9c/llms.txt): $0.05/call via x402. Returns a consolidated IPO pipeline snapshot — filed S-1/F-1s, amendments, priced 424(b)(4)s, and withdrawals — across four EDGAR stages in a single call.
- [AnswerPool 8-K Filings List](https://www.zero.xyz/c/answerpool-8-k-filings-list-1fbc690d/llms.txt): $0.005/call via x402. List SEC 8-K filings with item codes mapped to event labels (bankruptcy, officer change, earnings, cyber, etc.), filterable by item, ticker, and time window, with salience scores.
- [AnswerPool Auditor Network](https://www.zero.xyz/c/answerpool-auditor-network-b4db40b1/llms.txt): $0.02/call via x402. 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.
- [AnswerPool 8-K Since Cursor](https://www.zero.xyz/c/answerpool-8-k-since-cursor-8968b361/llms.txt): $0.005/call via x402. Poll SEC 8-K filings incrementally using a since-cursor, returning only events newer than your last checkpoint with an optional item-code filter and a next cursor for the next poll.
- [AnswerPool Latest EDGAR Filings](https://www.zero.xyz/c/answerpool-latest-edgar-filings-8991f6f7/llms.txt): $0.005/call via x402. Returns the newest SEC EDGAR filings market-wide for any specified form type, with accession number, filer, timestamp, and SEC URL — normalized from the live SEC feed.
- [AnswerPool XBRL Concept Series](https://www.zero.xyz/c/answerpool-xbrl-concept-series-09cc29dc/llms.txt): $0.005/call via x402. Fetches a deduplicated time-series of a single XBRL financial metric (e.g. revenue, net income) for a specific SEC filer, returning all 10-K/10-Q reported values with periods and source URL.
- [AnswerPool Agency Regulations Feed](https://www.zero.xyz/c/answerpool-agency-regulations-feed-34777d65/llms.txt): $0.005/call via x402. Returns every rule and proposed rule published by a specified US federal agency, newest first, with pre-computed deadline countdowns and significance flags.
- [AnswerPool SEC Insider Activity Summary](https://www.zero.xyz/c/answerpool-sec-insider-activity-summary-871eb54e/llms.txt): $0.005/call via x402. Returns a rolled-up summary of insider buying and selling activity for a single issuer over a chosen time window, including total buy/sell/net USD, filing count, distinct insider count, and largest transactions.
- [AnswerPool SEC Filings Since Cursor](https://www.zero.xyz/c/answerpool-sec-filings-since-cursor-090d3408/llms.txt): $0.005/call via x402. Returns SEC filings for a single filer newer than a given date cursor, plus the next cursor for incremental polling
- [AnswerPool SEC Insider Filings Since-Cursor Poller](https://www.zero.

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