The Sentinel Project

The largest open graph of congressional influence ever built

463K entities. 7.3M connections. Every dollar traced.

Sentinel maps the full network of political finance — campaign donors, federal contractors, lobbyists, legislators, and dark money flows — into a unified knowledge graph. Machine learning models trained on this graph detect influence patterns invisible to manual review.

0
Entities Mapped
0
Graph Edges
0
Stock Trades Analyzed
Sentinel Oracle

Ask the knowledge graph anything

Natural language queries against 463K entities and 7.3M edges

Powered by Sentinel Oracle · Natural language queries against the live knowledge graph

The tools are disappearing

One by one, the platforms that made government data accessible have gone dark.

Sunlight FoundationDissolved
2020
MapLightShuttered
2022
ProPublica RepresentDiscontinued
2023
OpenSecrets APIDiscontinued April 2025
2025
Sentinel fills the gap