NEW

Now covering Cursor and Kiro

Your biggest risk is

AI writing your code

AI reading your data

AI you never approved

AI you can't see

AI writing your code

AI reading your data

AI you never approved

AI you can't see

ARS watches what your AI tools actually do, and stops them when they go wrong.

Start Securing

Learn more

PRODUCT

See every action your AI takes. And what ARS did about it.

app.noctara.tech/sessions

Overview

Observe

Projects

Sessions

Assets

Events

Protect

Detection rules

Response Center

Sessions

All projects

Last 24 hours

Session

Agent

Verdict

Seen

sess_8f2a1c

Claude Code

Allowed

2m ago

sess_71b90d

Codex CLI

Held for approval

6m ago

sess_4c3e88

Cursor

Blocked

11m ago

sess_19ff20

Claude Cowork

Allowed

18m ago

app.noctara.tech/sessions

Sessions

Agent

Verdict

Claude Code

Allowed

Codex CLI

Held for approval

Cursor

Blocked

Claude Cowork

Allowed

FEATURES

Agentic. Runtime. Security. ARS.

Find every AI in your business

Agents, skills, MCP servers, and the tools your teams signed up for themselves. Most of it was never approved, and you cannot govern what you cannot see.

Find every AI in your business

Agents, skills, MCP servers, and the tools your teams signed up for themselves. Most of it was never approved, and you cannot govern what you cannot see.

See what they actually do

Every action recorded as it happens: who ran it, what it touched, and whether that is normal for them.

See what they actually do

Every action recorded as it happens: who ran it, what it touched, and whether that is normal for them.

Stop it before it spreads

Risky actions are blocked automatically, in real time. Anything uncertain is held for a person, and every decision is recorded.

Stop it before it spreads

Risky actions are blocked automatically, in real time. Anything uncertain is held for a person, and every decision is recorded.

HOW ARS WORKS

Three steps. Your teams keep the tools they already use.

Connect in minutes

The Noctara ARS Sensor sets up Claude Code, Codex, Cursor and Kiro for you, keeping a backup of your settings. Tools that export their own logs, like Claude Cowork, connect without a sensor at all. No root certificate, no system-wide interception.

See what we cover

Connect in minutes

See what we cover

Connect in minutes

See what we cover

Every action is checked against your policies

Before an AI tool reads a file, runs a command, sends data out or touches a credential, ARS classifies the action and checks it against your detection and containment policies. Trial a new policy in simulate mode to see what it would have stopped.

See it in the product

Every action is checked against your policies

See it in the product

Every action is checked against your policies

See it in the product

Stopped before it runs

In Claude Code, Codex, Cursor and Kiro, actions your policy forbids are blocked before they execute, and if ARS can't be reached, risky actions stop rather than slip through. Containment can run automatically or wait for approval. Every decision is recorded.

Book a demo

Stopped before it runs

Book a demo

Stopped before it runs

Book a demo

COVERAGE

What ARS covers today.

Works with

Claude Code

Codex

Cursor

Kiro

Claude Cowork

Traffic ingestion

ARS Sensor for Claude Code, Codex, Cursor and Kiro. Claude Cowork through its own logs.

LIVE

Agent behaviour analytics

Baseline of normal tool use, sequence and frequency

LIVE

Memory integrity monitoring

Every write attributed and policy-checked

LIVE

Real-time threat classification

A purpose-built AI model judges every event in milliseconds and acts on its own when it’s confident. You decide how confident it has to be.

LIVE

Custom Detection Rules

Your own rules, evaluated continuously against live traffic

LIVE

Custom Containment Rules

Hold, require approval, or block, to your own policy

LIVE

ARS AT A GLANCE

Every action checked.
Every decision recorded.

0 ms

Typical policy decision time

0 ms

Typical policy decision time

0 ms

Typical policy decision time

Kinds of action checked before they run

Policy modes: observe, simulate, enforce

Frameworks ARS maps controls to

WHY NOCTARA ARS

The tools you have weren’t built for a running agent.

Nothing watches a running agent

Guardrails filter at the edge, not in flight

Evaluations run before deployment, not during it

No verdict returned before the tool call completes

Deviation caught after the fact, not in flight

No evidence a regulator will accept

No named accountability for what the agent did

Every tool call resolves to one verdict

Deviation caught in flight, not in a post-incident review

Every write to memory attributed and policy-checked

A signed, tamper-evident record for every decision

Named accountability for every approval

Evidence that stands up to model risk and audit review

THE GAP

You secured your endpoints, your cloud, your logins.
Your AI agents are still exposed.

Endpoints

EDR and XDR

MATURE

Cloud workloads

CWPP and CSPM

MATURE

Identities

ITDR and PAM

MATURE

Production AI agents

No dominant standard yet

EMERGING

Guardrails filter at the edge. Evaluations run before deployment. Neither watches a running agent, and neither produces evidence a regulator will accept.

PRICING

Secure now,
scale with confidence.

Team

Software, fintech and healthtech under 200 staff. Self-serve, low friction.

Contact Sales

Mid-market

200 to 2,000 staff with an established security function. Annual contract.

Agent behaviour analytics

Memory integrity monitoring

Signed, tamper-evident records

SaaS deployment, your region

Model risk & audit evidence

Named accountability

Contact Sales

Enterprise

Banking, insurance and healthcare. Model risk co-signs.

SaaS deployment with model-risk sign-off built into the rollout, for teams governed by PRA SS1/23 and SMCR.

Contact Sales

FAQ

AI Security questions.
Clear answers.

What is Noctara ARS?

Security for the AI tools your people use at work. ARS checks each action an AI tool such as Claude Code or Codex tries to take against your policy, can stop it before it runs, and records every decision.

What does ARS capture?

From Claude Code and Codex: the conversation, the tools the AI calls and what came back, plus the model and timing. Claude Cowork connects through its own logs. ARS does not record API keys, login tokens, the model's hidden reasoning, attachments or raw web traffic.

Can it stop an action, or only report it?

Both. In Claude Code, Codex, Cursor and Kiro, ARS sees each action before it runs and blocks anything your policy forbids. For tools that only share logs, such as Claude Cowork, it detects rather than blocks. Policies run in observe, simulate or enforce mode.

Will it slow my team down?

No. Decisions are made on the device. Across 1,500+ live decisions a typical check took about 4 ms, and 99.8% finished within 100 ms.

What if ARS can't be reached?

Higher-risk actions such as deleting files, running commands, sending data out or touching credentials are blocked rather than let through. Reads and edits carry on.

What about Claude Cowork and ChatGPT?

Cowork is supported through its activity logs: detected and alerted on, not blocked in the moment. Codex is supported, including when signed in with a ChatGPT account. ChatGPT's workplace products aren't connected yet.

What does it record for audit?

The tool and type of action, the policy and version, the rules matched, the outcome, the reason and any break-glass override. Each record carries a SHA-256 fingerprint. Data is stored on Azure in West Europe.

Does it replace our existing security tools?

No. Endpoint, cloud and identity tools still do their jobs. ARS adds the layer they weren't built for: what AI tools do on your behalf, checked before each action runs.

What is Noctara ARS?

What does ARS capture?

Can it stop an action, or only report it?

Will it slow my team down?

No. Decisions are made on the device. Across 1,500+ live decisions a typical check took about 4 ms, and 99.8% finished within 100 ms.

What if ARS can't be reached?

Higher-risk actions such as deleting files, running commands, sending data out or touching credentials are blocked rather than let through. Reads and edits carry on.

What about Claude Cowork and ChatGPT?

What does it record for audit?

Does it replace our existing security tools?

No. Endpoint, cloud and identity tools still do their jobs. ARS adds the layer they weren't built for: what AI tools do on your behalf, checked before each action runs.

Security work never stops. Neither does ARS.

Get continuous visibility into your security posture and act on critical risks before they escalate.

Get Started

Your biggest risk is

See every action your AI takes. And what ARS did about it.

Agentic. Runtime. Security. ARS.

Find every AI in your business

Find every AI in your business

See what they actually do

See what they actually do

Stop it before it spreads

Stop it before it spreads

Three steps. Your teams keep the tools they already use.

Connect in minutes

Connect in minutes

Connect in minutes

Every action is checked against your policies

Every action is checked against your policies

Every action is checked against your policies

Stopped before it runs

Stopped before it runs

Stopped before it runs

What ARS covers today.

Every action checked. Every decision recorded.

The tools you have weren’t built for a running agent.

The tools you have weren’t built for a running agent.

You secured your endpoints, your cloud, your logins.Your AI agents are still exposed.

Secure now, scale with confidence.

Team

Team

Mid-market

Mid-market

Enterprise

Enterprise

AI Security questions.Clear answers.

What is Noctara ARS?

What does ARS capture?

Can it stop an action, or only report it?

Will it slow my team down?

What if ARS can't be reached?

What about Claude Cowork and ChatGPT?

What does it record for audit?

Does it replace our existing security tools?

What is Noctara ARS?

What does ARS capture?

Can it stop an action, or only report it?

Will it slow my team down?

What if ARS can't be reached?

What about Claude Cowork and ChatGPT?

What does it record for audit?

Does it replace our existing security tools?

Security work never stops. Neither does ARS.

Every action checked.
Every decision recorded.

You secured your endpoints, your cloud, your logins.
Your AI agents are still exposed.

Secure now,
scale with confidence.

AI Security questions.
Clear answers.