Celebi
Time-Travel Harness for LLM API Streams
Celebi is a man-in-the-middle proxy that sits between your coding agent and LLM providers. It captures every request/response pair in a graph database, forming a timeline of conversations that you can visualize, search, and replay.
Named after the time-traveling Pokemon — because debugging LLMs should feel like time travel.
Download
Go to GitHub Releases to download the latest installer.
| Platform | File | Guide |
|---|---|---|
| macOS (Apple Silicon / Intel) | celebi-*-macos.dmg |
Install Guide |
| Linux (Debian / Ubuntu) | celebi_*_amd64.deb |
Install Guide |
| Windows (x64) | celebi-*-windows-setup.exe |
Install Guide |
What does Celebi do?
- Captures every API call between your agent and the LLM
- Stores conversations as a directed graph (prompt → response nodes)
- Visualizes the full conversation flow in a card-based graph view
- Replays any prompt to compare outputs
- Searches across all stored conversations by content
- Tracks token usage per request for cost analysis