Cubesphere Data

SEC insider filings, translated into clean economic events.

We collect Form 4, Form 144, and Schedule 13D/G filings from SEC EDGAR every few minutes, separate signal from noise (equity awards, tax withholding, 10b5-1 planned sales), and expose the result as an HTTP API and an MCP server that AI agents can query directly.

Beta. The API (api.cubesphere.xyz) and MCP server (mcp.cubesphere.xyz) are being brought online. Historical depth is currently limited and endpoints may change without notice.

What you can query

Insider events — open-market buys and sells with insider roles, values, holding changes, and quality labels. Every row carries its source filing accession number and the timestamp the information became public (known_at).
Company timeline — Form 4 + Form 144 + 13D/G activity for a ticker on one time axis.

Data sourcing

All data is derived exclusively from public SEC EDGAR filings (public domain). We preserve raw source documents and every number is traceable to its original filing row.

Contact

support@cubesphere.xyz