Build with MetricDuck

Connect an AI agent over MCP, or call the REST API from any backend — the same audit-grade SEC data for 5,500+ US companies, 10+ years, 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)

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

Tool reference →Connect over MCP →

Metrics

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

Metric catalog →

Watch real runs

Real, unedited agent runs — the thinking, every tool call, every number clickable back to its SEC filing.

Open the inspector →

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