SEC Fundamentals API

Where it sits in the directory's order

What can be seen from outside, weighed as the directory publishes.

Where it answers

• https://sec.multyplylabs.com/mcpstreamable-http
  • X-API-Key optional, secret: API key for prepaid access (email babu@multyplylabs.com). Omit to use only the free tools (list_insights); paid tools return payment guidance. For per-call x402 (USDC on Base) payment instead, run the

The tools it lists (17, as of 2 days ago)

The tool-description rules found nothing in these descriptions. They look for instructions aimed at a model and for hidden characters; they cannot see what a tool does when it runs.

• lookup_company

  Find a company's SEC CIK from its ticker, CIK or name. Every company tool takes a cik, so call this first when you only have a ticker (AAPL) or a name (apple). Returns up to limit matches, best first (exact ticker, exact CIK, name prefix, name contains; within each, companies with tickers before other filers such as individuals), each with cik, name, tickers, sic and sic_description; no match is an empty list, not an error. Free: no API key or payment needed.

• company_financials

  Annual financial statements for one company, one row per fiscal year: income statement, balance sheet and cash flow lines plus ratios (gross_margin, operating_margin, roe, roa, fcf, debt_to_equity, ...). Use it for a known company's history; use company_facts for individual reported values and quarterly periods, compare_to_peers to benchmark it against its industry, and screen_companies to find companies by criteria. Cost: $0.02 per call; unpaid calls return a payment-required error.

• company_facts

  Raw normalized XBRL facts for one company as reported in its SEC filings, newest first: concept, value, unit, period_start and period_end, fiscal_year, fiscal_period, form, filed date and data-quality flags. Use it for individual reported values, quarterly figures or filing provenance; use company_financials for clean annual statements and ratios. Cost: $0.01 per call; unpaid calls return a payment-required error.

• company_filings

  SEC filing index for one company, newest first: form, filing date, report period, accession number, 8-K item codes and a direct sec.gov document_url. Use it to find or cite a specific 10-K, 10-Q, 8-K or Form 4; use company_facts or company_financials for the numbers in the filings. Cost: $0.005 per call; unpaid calls return a payment-required error.

• industry_aggregate

  Benchmark percentiles (p10, p25, median, p75, p90, plus mean and company count n) for one financial metric, per fiscal year, 2-digit SIC industry group and revenue size bucket. Use it for questions like "what is the median gross margin of large software companies?"; use compare_to_peers to place one company in its cohort and market_insight (sector_landscape) for margin medians across every industry. Cost: $0.05 per call; unpaid calls return a payment-required error.