Build with MetricDuck

Connect an AI agent over MCP, or call the REST API from any backend — the same SEC data for ~6,000 SEC filers, with filings from 2013 onward, free to start.

Connect an agent REST API quickstart

REST API

Direct HTTP for any backend. Free key, no card — first call in two minutes.

Quickstart →Endpoint reference →

Tools (MCP)

23 tools your agent calls in natural language — financials, filings, screening, search.

Tool reference →Connect over MCP →

Metrics

250+ computed metrics with formulas and IDs — the vocabulary your agent and the API share.

Metric catalog →

Watch real runs

Real agent runs, unedited except where marked — the thinking, every tool call, and the citations back to their sources.

Open the inspector →

Agent guides

Check a figure against its filing → Trace a number to its filing, the fact as filed, a computed metric's inputs and the sentence that reported it.
Point-in-time data and backtests → Which tools serve values as originally filed, which serve the latest values (recasts included), and how to backtest.
Monitoring recipe → Watch a list of companies on a schedule, dedupe by accession, act on each new filing and stay inside the daily quota.

Free tier, no card — the same daily tool-call quota whether your agent connects over MCP or you call the REST API directly. See pricing →