All Hydra data streams and what they contain.

Available Streams

Hydra exposes nine real-time data streams. Each is independently subscribable via WebSocket or queryable via REST.

Stream Index

Stream ID	Description	Update Frequency
`aircraft`	Military aircraft positions & movements	~60 seconds
`vessels`	Naval vessel positions & status	Real-time
`alerts`	Active missile & rocket alerts	3–5 seconds
`cyber`	Cyber attack pulses & threat intelligence	5 minutes
`airspace`	Airspace restrictions & NOTAMs	10 minutes
`signals`	Correlated geopolitical intelligence signals	On event
`markets`	Geopolitical prediction market positions	15 minutes
`social`	OSINT social media signals	2 minutes
`earthquakes`	Seismic events M2.5+ globally	5 minutes

All stream messages follow the same envelope:

{
  "stream": "aircraft",
  "type": "position_update",
  "ts": 1710000000000,
  "data": { ... }
}

The data field schema is specific to each stream. Full schemas are documented in Data Streams.

Cross-stream signals carry a severity level from 1–5:

Level	Meaning
1	Routine — normal activity
2	Notable — worth monitoring
3	Elevated — unusual pattern
4	High — active event underway
5	Critical — mass-casualty scale