AI Agent Observability

Mission control
for your AI agents

See what every agent is doing. Catch errors before they cost you. Two lines of code to connect.

$npm install tethr
Start free

Your agents are flying blind

Most teams don't realize there's a problem until the bill arrives.

πŸ’Έ

$12,000 surprise bills

Unmonitored agents run up massive costs overnight. Silent retries. Runaway loops. No ceiling.

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Silent failures

Agents return 'success' with wrong answers. No exceptions, no alerts. Just confidently wrong output.

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Zero visibility

5 agents running, 3 frameworks, no single place to see what's happening. You're checking each one manually.

Tethr astronaut

Two lines of code. Total visibility.

Getting started takes less than a minute.

1

Install the SDK

One command to add Tethr to your project.

npm install tethr
2

Add two lines

Initialize and ping. That’s it.

"text-purple-400">const agent = tethr.init({ apiKey: 'key', name: 'My Agent' })
"text-purple-400">await agent.ping({ status: 'running', message: 'Working...' })
3

See everything

Every agent, every status, every error β€” live in your dashboard. Get alerts, pause agents, review timelines.

Everything you need. Nothing you don't.

Built for teams running AI agents in production.

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3D Mission Control

See every agent across every hub in a real-time 3D visualization. Live updates, no polling.

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Skills & Jobs

Agents run multiple skills. Each skill tracks its own KPIs, success rate, cost, and schedule.

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Cost tracking

Auto-calculated cost per job from token usage. See spend per skill, agent, and hub.

⏸

Pause, resume & kill

Control any agent from your dashboard. Agents check in and respond in real time.

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Agent messaging

Two-way chat with your agents. Approval requests, status updates, and human-in-the-loop.

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Framework agnostic

Works with CrewAI, LangChain, AutoGen, OpenAI Agents, Claude SDK, or custom code.

Coming Soon

Tethr Mobile App

Manage and message your agents from your phone. Get real-time alerts, approve requests, and stay tethered to your AI workforce β€” wherever you are.

Works with any framework

CrewAILangChainLangGraphAutoGenOpenAI AgentsClaude SDKn8nCustom Code

Connect any agent in under 60 seconds

Simple, typed SDK. Works everywhere Node runs.

"text-purple-400">import { TethrAgent } "text-purple-400">from 'tethr-sdk'

"text-purple-400">const agent = new TethrAgent({
  apiKey: 'YOUR_KEY',
  name: 'Research Agent'
})

// Your agent does its work...
"text-purple-400">await agent.ping({
  skill: 'competitor-analysis',
  status: 'running',
  step: 2,
  total: 5,
  message: 'Scraping competitor data...',
  model: 'claude-sonnet-4-6',
  tokens_input: 1250,
  tokens_output: 430,
})

// Check "text-purple-400">if paused "text-purple-400">from dashboard
"text-purple-400">const ctrl = "text-purple-400">await agent.control()
"text-purple-400">if (ctrl.is_paused) "text-purple-400">return
0%

of production agent teams need observability

$0B+

AI agent market in 2025, growing 40% annually

0 lines

of code to connect any agent

Simple, transparent pricing

Start free. Upgrade when you're ready.

Free

$0forever
  • βœ“3 agents
  • βœ“1-day history
  • βœ“Email alerts
  • βœ“1 user
Get started

Starter

$29/mo
  • βœ“5 agents
  • βœ“7-day history
  • βœ“Email alerts
  • βœ“1 user
Start free β†’
Most popular

Pro

$79/mo
  • βœ“20 agents
  • βœ“30-day history
  • βœ“Email + Slack alerts
  • βœ“3 users
Start free β†’

Agency

$149/mo
  • βœ“Unlimited agents
  • βœ“90-day history
  • βœ“All alert channels
  • βœ“Unlimited users
Start free β†’

No credit card required. Upgrade or cancel anytime.

Tethr astronaut

Your agents are out there.
Stay tethered.

Start free

No credit card required Β· 2-minute setup Β· Cancel anytime