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Source-traced SEC & market data — one key, three ways in: the dashboard, the API, and the MCP server.

api.ko.io

$ curl api.ko.io/api/v1/holdings/1067983

{

"cik": "1067983",

"name": "Berkshire Hathaway",

"period": "2026-Q1",

"total_value": 266341000000,

"holdings": 41,

"source": "13F-HR"

}

12,978

Institutions

120M+

Source-traced rows

<10ms

p99 latency

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