Ask
“Find a genuine satellite recording, play an excerpt and show its spectrogram.”
PUBLIC OBSERVATIONS. LOCAL SCIENCE.
Explore genuine radio observations, listen to available recordings, and investigate signals using Claude, Codex, and other MCP-compatible assistants.
No radio hardware or paid API key required by the server.
01 / REAL RECORDING

Edited replay of actual MCP output, not a Claude/Codex screen recording. The audio plays from 12–27 seconds. Credits and transformations.
02 / YOUR FIRST SIGNAL
Install uv, then run this in Terminal or PowerShell. It checks a real MCP handshake and an offline 440 Hz test tone.
uvx --from https://github.com/levanmamulashvili911-byte/cosmic-ears-mcp/releases/download/v0.2.0/cosmic_ears_mcp-0.2.0-py3-none-any.whl cosmic-ears-mcp self-testConnect Claude Desktop, Claude Code or Codex →“Find a genuine satellite recording, play an excerpt and show its spectrogram.”
Get audio, a measured plot, digital signal metrics, observer credits and the original source.
Separate what the evidence shows from interference, receiver effects and unknowns.
03 / CURIOSITY, WITH LIMITS
These SatNOGS recordings target human-made satellites. They are receiver-demodulated electromagnetic signals, not sound traveling through space. Audio-frequency bins are not calibrated RF measurements. Nothing here detects aliens.
The educational demo is explicitly synthetic. Jupiter listening references stay source-linked where redistribution rights are unclear. No live telescope feed is promised.
Read the scientific limitations →