// SEC FUNDAMENTALS API

SEC fundamentals, with lineage to the source filing.

Normalized SEC financial data for developers and AI agents. Every metric includes its source filing, XBRL fact, and quality status.

Get API key Read the docs

// TRY A TICKER (LIVE DATA)

No key needed:

This calls the real, public LedgerBase V2 financial-series API.

AAPLAAPL

GET /v2/companies/AAPL/financials?period=FY&limit=5&metricSet=core&order=desc

Source-traced

Every metric links to the SEC filing and XBRL fact it came from.

Normalized

Income, balance sheet, and cash flow metrics keyed consistently across companies.

AI-ready

A response mode designed for LLM grounding, with confidence scores and structured lineage.

// HOW IT WORKS

Request an API key.

Free during early access.

Call any company by ticker.

Get fundamentals, lineage, and quality status.

Ship.

Audit any number back to its source filing.

GET /financial-health

curl https://api.ledgerbase.cc/v1/companies/MSFT/financial-health \
  -H "X-API-Key: $LEDGERBASE_KEY"

RESPONSE200 OK

{
  "ticker": "MSFT",
  "fiscalPeriod": "FY",
  "overallStatus": "STRONG",
  "modelVersion": "financial-health-v1",
  "signals": {
    "incomeStatement": "STRONG",
    "balanceSheet": "STRONG",
    "cashFlow": "STRONG"
  },
  "missingMetrics": [],
  "abbreviated": true
}

Not a single-trick API.

Run rule-based financial health checks, explain a metric’s lineage, or pull point-in-time statements — same traceable contract.

See how metric lineage works in the API reference

// WHO THIS IS FOR

Backend developers

Building investor tools, portfolio trackers, or research dashboards.

AI agent builders

Grounding LLM responses in source-traced financial data.

Quantitative researchers

Point-in-time fundamentals without enterprise data licenses.

// BUILT FOR TRUST

We tell you what we know, and what we do not.

SEC-derived values remain primary. Missing metrics stay missing, and external references are used for validation rather than replacement.

SEC is the sourcePersisted filing data, not a live proxy

Lineage is visibleFiling and XBRL evidence where available

Missing means missingNo convenient substitute for unavailable facts

See how lineage and quality states work

Free during early access.

We're onboarding developers personally. Tell us what you're building.