langobs-server
FastAPI backend for LangObs — real-time observability for AI agents.
Install
pip install langobs-server
Run
langobs-server
# REST API: http://localhost:8766/api/v1
# WebSocket: ws://localhost:8766/ws
# Dashboard: http://localhost:5173 (start separately)
Run from source
git clone https://github.com/langobs/langobs
cd langobs
make install && make dev
API Endpoints
| Method | Path | Description |
|---|---|---|
| GET | /api/v1/sessions |
List all sessions |
| GET | /api/v1/traces/{session_id} |
Get all trace events for a session |
| POST | /api/v1/traces/{session_id} |
Ingest trace events |
| GET | /api/v1/costs/{session_id} |
Cost breakdown |
| GET | /api/v1/hallucinations/{session_id} |
Hallucination alerts |
| POST | /api/v1/hallucinations/{session_id}/detect |
Run detection |
| GET | /api/v1/memory/{session_id} |
Memory entries |
| PATCH | /api/v1/memory/entry/{id} |
Edit memory entry |
| DELETE | /api/v1/memory/entry/{id} |
Delete memory entry |
| GET | /api/v1/replay/{session_id} |
Replay event stream |
| GET | /health |
Health check |
WebSocket Protocol
Connect to ws://localhost:8766/ws and send a hello message:
{ "type": "hello", "role": "sdk" }
Roles: "sdk" (agent sending events) or "dashboard" (browser receiving events).
Configuration
Environment variables (all optional):
| Variable | Default | Description |
|---|---|---|
DATABASE_URL |
sqlite+aiosqlite:///langobs.db |
Database URL |
HOST |
0.0.0.0 |
Bind address |
PORT |
8766 |
Port |
CORS_ORIGINS |
["*"] |
Allowed CORS origins |
License
MIT
1 maintainer
Metadata
1 maintainer
Release files for langobs-server 0.2.0
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | Provenance | Actions |
|---|---|---|---|---|
| langobs_server-0.2.0.tar.gz | 394.9 kB | Without provenance | Details for langobs_server-0.2.0.tar.gz |
Built distribution (wheel)
| File | Interpreter | ABI | Platform | Actions Reset |
|---|---|---|---|---|
| langobs_server-0.2.0-py3-none-any.whl | Python 3 | none | any | Details for langobs_server-0.2.0-py3-none-any.whl |
Total release size: 788.5 kB
Release files / langobs_server-0.2.0.tar.gz
| Download URL | langobs_server-0.2.0.tar.gz |
|---|---|
| Size | 394.9 kB |
| Tags | Source |
|
SHA-256 checksum How to use checksums |
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No |
| Uploaded via |
twine/6.2.0 CPython/3.10.5
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Release files / langobs_server-0.2.0-py3-none-any.whl
| Download URL | langobs_server-0.2.0-py3-none-any.whl |
|---|---|
| Size | 393.7 kB |
| Tags | Python 3 |
|
SHA-256 checksum How to use checksums |
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No |
| Uploaded via |
twine/6.2.0 CPython/3.10.5
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