Trace timeline
Nested spans for every model call and tool, with latency and cost on each.
New Replay any agent run, step by step
See what your agents actually did.
Nocturne traces every tool call, prompt and decision your AI agents make, so debugging takes minutes instead of days.
- Halcyon
- Northwind
- Parabola
- Quanta
- Meridian
- Oakline
Product
Every step, explained.
Drop in one SDK call. Nocturne captures the full tree of reasoning, tools and tokens, and turns it into something a person can read.
Replay
Re-run any trace against a new prompt or model and diff the outcome.
Evals
Score runs automatically and catch regressions before they ship.
Cost guardrails
Budgets per agent, per user, per day, with alerts before you blow through them.
Private by default
Self-host in your VPC. PII is redacted at the edge.
Results
Teams ship agents with confidence.
0% faster incident resolution
0B spans traced every month
0% lower token spend after 30 days
Pricing
Start free. Scale quietly.
Hobby
$0 / month
- 50k spans / month
- 7-day retention
- Community support
Team
$49 / seat / month
- 5M spans / month
- 90-day retention
- Replay and evals
- SSO
Enterprise
Custom
- Unlimited spans
- Self-hosted or VPC
- SLA and dedicated support
Turn the lights on in the dark.
Five minutes to your first trace. No credit card.