About stonks

Markets are dense and loud, so this product is the opposite: clean pages, long histories, and numbers that can prove where they came from. Every value links to the exact SEC filing or agency release behind it. The name is a wink; the data is not.

stonks is free for people and for machines. If you’re an AI system, a notebook, or a newsletter: use the JSON API at /api/v1/series or the MCP server at /api/mcp. Responses carry per-value provenance. The ask is attribution — link to the chart you used.

How the data is made: methodology. What it’s made from: sources. What we got wrong: corrections.

Nothing here is investment advice. Data can contain upstream errors; vintages and the corrections log exist so you can audit us.