# 8-K Disclosures > 8-K Disclosures is a paid API for AI agents from agent.massive.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15). Retrieves categorized SEC 8-K filing disclosures with primary, secondary, and tertiary classification labels and supporting text excerpts ## Facts - Endpoint: GET https://agent.massive.com/stocks/filings/8-K/vX/disclosures - Price: $0.01/call - Payment: x402 - Status: unknown - Last checked: 2026-09-15 - Activations on Zero: 0 - Tags: x402 - Canonical page: https://www.zero.xyz/c/8-k-disclosures-c6b01109 - Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wYpXqHOD5e4Gb3y6h3rwX Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently. ## How to call it through Zero Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`): ```sh zero fetch --capability 8-k-disclosures-c6b01109 ``` Example prompt: Show me the most recent 8-K disclosure filings for Tesla (ticker: TSLA), categorized by disclosure type, for the past 6 months — sorted by filing date descending, limit to 50 results. ## When to prefer this Use this endpoint when you need structured, machine-readable categorization of 8-K disclosures for a specific company or set of companies, especially when you want to filter by disclosure type (primary/secondary/tertiary categories) or monitor material events over time. Prefer this over a raw SEC EDGAR search when you need pre-classified, tagged disclosures with category labels rather than raw filing documents. ## Known failure modes - Invalid or missing CIK returns empty results or an error - Unrecognized ticker symbol returns no rows - Date filters with incorrect format (not YYYY-MM-DD) may return errors - Limit exceeding 1000 is rejected - Requesting an unsupported category value returns empty results - Payment failure (x402) blocks access if USDC payment is not processed ## How this service works SEC 8-K filing disclosure categorization. A single 8-K filing can produce multiple rows when it covers multiple disclosure types — each row represents one tagged disclosure within the filing, classified into primary, secondary, and tertiary categories with a supporting text excerpt. The full classification list is available at /stocks/taxonomies/vX/disclosures. Can't find what you're looking for? POST feedback to /feedback, no charge. ## Output Returns a list of rows where each row represents a single tagged disclosure within an 8-K filing, including the filing date, associated ticker symbols, CIK, primary/secondary/tertiary classification categories, and a supporting text excerpt from the filing. A single 8-K filing may produce multiple rows if it covers multiple disclosure types. ## Request schema (JSON Schema) ```json { "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" ], "type": "string" }, "queryParams": { "type": "object", "properties": { "cik": { "type": "string", "description": "SEC Central Index Key of the filer (10 digits, zero-padded)." }, "sort": { "type": "string", "default": "filing_date.desc", "description": "A comma separated list of sort columns. For each column, append '.asc' or '.desc' to specify the sort direction. The sort column defaults to 'filing_date' if not specified. The sort order defaults to 'desc' if not specified." }, "limit": { "type": "integer", "default": 100, "maximum": 1000, "minimum": 1, "description": "Limit the maximum number of results returned. Defaults to '100' if not specified. The maximum allowed limit is '1000'." }, "tickers": { "type": "string", "description": "Filter for arrays that contain the value." }, "cik.any_of": { "type": "string", "description": "Filter equal to any of the values. Multiple values can be specified by using a comma separated list." }, "filing_date": { "type": "string", "description": "Date when the filing was submitted to the SEC (formatted as YYYY-MM-DD)." }, "filing_date.gt": { "type": "string", "description": "Filter greater than the value." }, "filing_date.lt": { "type": "string", "description": "Filter less than the value." }, "tickers.all_of": { "type": "string", "description": "Filter for arrays that contain all of the values. Multiple values can be specified by using a comma separated list." }, "tickers.any_of": { "type": "string", "description": "Filter for arrays that contain any of the values. Multiple values can be specified by using a comma separated list." }, "filing_date.gte": { "type": "string", "description": "Filter greater than or equal to the value." }, "filing_date.lte": { "type": "string", "description": "Filter less than or equal to the value." … (truncated) ``` ## Response schema (JSON Schema) ```json { "type": "json", "example": { "count": 2, "status": "OK", "results": [ { "cik": "0000320193", "tickers": [ "AAPL" ], "filing_url": "https://www.sec.gov/Archives/edgar/data/320193/0000320193-25-000010.txt", "filing_date": "2025-01-14", "supporting_text": "On January 14, 2025, Apple Inc. announced financial results for the fiscal quarter ended December 28, 2024.", "accession_number": "0000320193-25-000010", "primary_category": "financial_results", "tertiary_category": "quarterly_results", "secondary_category": "earnings_announcement" }, { "cik": "0000004962", "tickers": [ "AXP" ], "filing_url": "https://www.sec.gov/Archives/edgar/data/4962/0000004962-25-000002.txt", "filing_date": "2025-01-15", "supporting_text": "American Express Company is hereby furnishing below delinquency and write-off statistics for its U.S. Consumer and Small Business portfolios.", "accession_number": "0000004962-25-000002", "primary_category": "regulatory_compliance", "tertiary_category": "financial_data_disclosure", "secondary_category": "regulation_fd" } ], "next_url": "https://api.massive.com/stocks/filings/8-K/vX/disclosures?cursor=eyJsaW1pd...", "request_id": "b4e7c2a1f3d8e9g0" } } ``` ## More - Live health (JSON, refreshed every minute): https://www.zero.xyz/c/8-k-disclosures-c6b01109/health.json - [Zero catalog index](https://www.zero.xyz/llms.txt) - [Other services from agent.massive.com](https://www.zero.xyz/host/agent.massive.com/llms.txt)