MLQ API — agent-native, provenance-first market data

Get a free API key → Pricing MCP for agents API reference Accuracy Methodology & data dictionary OpenAPI spec

QUICK START

curl -H "Authorization: Bearer YOUR_KEY" \
  "https://mlq.ai/api/v1/companies/AAPL/income-statement/?period=FY&limit=4"

What you get

Provenance on every value

Each number names the exact SEC filing (accession + URL) it came from.

Point-in-time

?as_of=YYYY-MM-DD returns only what was known then — no look-ahead bias for backtests.

Drop-in ready

Standard statement field names — switching providers is a base-URL change.

Agent-native

One OpenAPI spec powers the docs and the MCP; clean JSON, no scraping.

Beyond financials

Filings firehose, insider trades, 13F, and the AI-infrastructure pipeline.

Live

Refreshed automatically as companies file with the SEC.

Guides

Getting started in 5 minutes →

Key → first call → paging → agent. Start here.

Point-in-time fundamentals for backtesting →

Eliminate look-ahead bias with as_of — a runnable Python cookbook.

Agent cookbook →

Connect Claude in one line; prompt recipes for research, 13F, filings triage, and infra.

AI infrastructure: power, permits & the grid →

Interconnection queue, data-center permits, and the as-built fleet — datasets no other API has.

Build a 13F tracker →

Fund portfolios, quarterly diffs, who-owns-what — reconciled to the filings.

Endpoints

GET /companies/{ticker}/income-statement	Income statement (with source filing)
GET /companies/{ticker}/balance-sheet	Balance sheet
GET /companies/{ticker}/cash-flow	Cash flow statement
GET /companies/{ticker}/metrics	Derived ratios & per-share metrics
GET /companies/{ticker}/facts	Raw normalized XBRL facts
GET /companies/{ticker}/filings	SEC filing index
GET /companies/{ticker}/insider-trades	Form 4 insider transactions
GET /companies/{ticker}/institutional-ownership	13F holders of a stock
GET /funds/{cik}/holdings	A 13F filer's portfolio
GET /feed	Scored EDGAR firehose
GET /congress-trades	US congressional stock trades (STOCK Act)
GET /companies?q=	Company search
GET /interconnection-queue	ISO interconnection queue (gen/storage/large-load)
GET /interconnection-queue/changes	Queue 'what changed' feed
GET /operating-generators	US power fleet (EIA-860)
GET /permits	Data-center construction & air permits
GET /data-centers	Verified data-center directory (global)

Auth: Authorization: Bearer <key> or X-API-Key: <key> · Point-in-time: append ?as_of=YYYY-MM-DD to the financial endpoints (facts, metrics, statements).

What you get

Guides

Endpoints

The Power Delivery Gap