Know Exactly Why Your
Agent Failed

Every tool call, every context change, every decision — captured and replayable. Debug production agents in seconds, not hours.

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Agents Are Black Boxes in Production

Without proper observability, you are flying blind. Most agent failures go completely uninvestigated.

87%

of agent failures go uninvestigated due to lack of visibility into what happened

2.4 hrs

average debugging time per incident when teams try to investigate manually

of agent deployments have replay capability — the most critical debugging feature

How AgentLens Works

Point Your API Through AgentLens

Change your API endpoint from OpenAI to AgentLens. No code changes, no SDK. Takes 30 seconds.

Every Step Is Captured

Full message history, token counts, tool calls, and context snapshots — all stored automatically.

Debug in Seconds

Use trace viewer, context diff, and session replay to find exactly what went wrong.

Everything You Need to Run Agents with Confidence

A complete observability stack built specifically for AI agents, not generic software.

Trace Viewer

Full step-by-step visibility into every agent run. Expand any message, copy content, see token counts.

Context Diff

Compare any two runs side-by-side. See exactly what changed between successful and failing executions.

Session Replay

Replay any past session with optional message injections. Test fixes without touching production.

Cost Attribution

Know exactly how much each agent, run, and feature costs. Set budget alerts to avoid surprises.

Alerting

Get notified when cost, error rate, or token usage spikes. Slack or email — you choose.

API Access

RESTful API to query traces, manage agents, and integrate with your existing tooling.

See a Trace in Action

Every step of your agent run, captured and organized. Click to expand any message.

trace_a1b2c3d4Erroremail-agent

3.2s12,450 tokens$0.42

system2,100 tokens

You are an email assistant that helps users manage their inbox...

user85 tokens

"Delete all emails from news@example.com before March 2024"

llm-callgpt-4o4,200 in / 1,800 out

I need to use the email API to search for and delete emails. Let me start by...

tool-callsearch_emails

{ "from": "news@example.com", "before": "2024-03-01" }

errorAPI rate limit exceeded

Error: 429 - Too Many Requests. The email API rate limit was hit after 5 calls.

Simple, Transparent Pricing

Start free for 14 days. No credit card required.

Starter

Perfect for getting started with agent observability

$99/month

1 agent
10K traces/mo
7-day retention
Basic trace viewer
Email support
Context diff
Session replay
Alerting
Cost attribution

Get Started

Growth

For teams scaling their agent deployments

$249/month

5 agents
100K traces/mo
30-day retention
Context diff
Session replay
Alerting
Cost attribution
Priority support

Start Free Trial

Pro

Unlimited scale with advanced features

$499/month

Unlimited agents
Unlimited traces
90-day retention
Context diff
Session replay
Alerting
Cost attribution
Anomaly detection
API access
Dedicated support