Open Source·Self-Hostable
Agent observability built for agents
— not retrofitted from LLM logging.
Real-time trace view, issue lifecycle tracking, and step-by-step execution
— for AI agents that actually run.
agentlogs.app — live trace streamLIVE
sample dashboard output
Req/sec
2,847
+12%24h
P99 Latency
1.24s
-8ms24h
Error Rate
0.3%
-0.1%24h
Cost/1k
$0.041
-4%24h
// capabilities
Everything you need to ship reliable AI
Built-in observability. Zero vendor lock-in. Works with any framework.
Real-time Tracing
Watch agents think step-by-step with full execution visibility
Cost Analytics
Track token usage and API costs across every agent run
Latency Profiling
Find bottlenecks. P50/P95/P99 breakdowns per step
Error Detection
Auto-categorize failures. Alert before users notice
Multi-Framework
LangChain, CrewAI, AutoGPT, or your own custom agents
Self-Hostable
Your data never leaves your infra. Docker in 2 minutes
SDK First
Python + TypeScript. 3 lines to full instrumentation
Production Scale
Built on FastAPI + Postgres. Async event ingestion designed to scale
// quickstart
Instrument in 60 seconds
01Install SDK
pip install agentlogs-sdk02Set endpoint
export AGENTLOGS_API_KEY="<your API key>"
export AGENTLOGS_PROJECT="my-agent"03Instrument
from agentlogs import AgentLogs
client = AgentLogs()
with client.trace("agent-run") as trace:
trace.step("llm_call", metadata={"model": "gpt-4o", "tokens": 1200})
# your agent logic
trace.step("done", metadata={"output": result})Get your API key →Free, no card required
// pricing
Simple. Developer-first.
Start free. Upgrade when you need more.
Free
$0
Forever free, open source
- 10,000 trace events / month
- 7-day log retention
- 1 project
- Community support
POPULAR
Pro
$19
per month, billed monthly
- 1,000,000 trace events / month
- 30-day log retention
- Unlimited projects
- Team seats (up to 5)
- Webhook + REST API export
- Email support (24h SLA)
// compare
How we stack up
| Feature | AgentLogs | LangSmith | Helicone | Arize Phoenix |
|---|---|---|---|---|
| Full Step-Tree Tracing | — | |||
| Replay / Root-Cause Debug | — | — | — | |
| OTel gen_ai Ingest | — | — | ||
| Cost Analytics | ||||
| Self-Hosting | — | |||
| Open Source | — | |||
| Starting Price | Free | $39/seat/mo | $79/mo | Free (OSS) |
Pricing as of Sept 2026, publicly listed rates.
$ ready to deploy
Ship AI agents with confidence
Open-source observability for AI agents. Free forever for the core. Self-host or use our hosted version.