The same buys, sells and clusters the members pages show, as JSON you can pull into a notebook, a sheet or your own tools. Included with the subscription, rebuilt every morning with the site.
Base URL https://insiderfilingsdata.com/api/v1. Pass your key in the x-api-key header (or ?api_key= for a quick browser test).
| Endpoint | Query parameters | Returns |
|---|---|---|
/filings | ticker, side (buy/sell), since (YYYY-MM-DD), min (usd), insider, limit | Open-market buys and $1M+ sells, last 24 months |
/clusters | ticker, min_score, since, limit | Scored cluster buys |
/sentiment | — | Weekly and monthly market-wide buy/sell counts and dollars since 2019 |
# the five strongest clusters
curl -H "x-api-key: YOUR_KEY" "https://insiderfilingsdata.com/api/v1/clusters?min_score=80&limit=5"
# every open-market buy of NVDA in the window
curl -H "x-api-key: YOUR_KEY" "https://insiderfilingsdata.com/api/v1/filings?ticker=NVDA&side=buy"
# CFO buys over $250k this quarter
curl -H "x-api-key: YOUR_KEY" "https://insiderfilingsdata.com/api/v1/filings?side=buy&min=250000&since=2026-07-01"A key carries your subscription; anyone with it can read the API as you. Only a hash is stored — if a key is lost, revoke it on the members API page and make a new one. Keys are shown once, at creation.
The trailing 24 months is what the API serves. For everything since 2019 there is the one-time data archive — gzipped CSV and a build script that produces an indexed SQLite database in about two minutes — and an MCP server so Claude, Cursor or any MCP-aware assistant can query it directly.
All seven tools, the full two-year feed, the JSON API and email alerts, refreshed every morning. A free quarterly sample of the dataset needs no account.
See plansFree sampleYes. Members get keyed access to /filings, /clusters and /sentiment at insiderfilingsdata.com/api/v1, returning the same open-market buys, $1M+ sells and scored clusters the members pages show.
With an API key in the x-api-key header. Keys are created and revoked on the members API page; only a hash is stored.
The trailing 24 months of filings and clusters, and the full weekly sentiment series since 2019. The full seven-year history is in the one-time data archive.
It is rebuilt every morning from the previous business day's SEC filings, at the same time as the site.
Yes, apart from reselling the compiled files as a competing dataset. See the terms.