Is Koi or Zenity better for AI endpoint control?

Neither is scored on this site. Koi describes 1 of four product control types and Zenity 1 on the pages we read, and they differ on 7 recorded facts. Which fits depends on the AI tools people use, your devices, where the work happens and whether you block or guide; the finder checks those.

Which of the two decides on a tool call before it runs?

Koi: Partly. Zenity: Matches. Warn or ask: Koi Not in our sources, Zenity Partly.

Do Koi or Zenity publish prices?

Koi: Not published. Zenity: Not published.

HEAD-TO-HEAD · FACTS ONLY

Koi vs Zenity: AI endpoint control facts side by side

Short answer

Koi describes 1 of the four product control types on the pages we read and Zenity describes 1; they differ on on-device control and AI or MCP gateway. On decisions, Koi describes some control over tool calls and Zenity decides on a tool call before it runs. We do not score either; the right choice depends on the AI tools people use, your devices, your current stack and whether you block or guide.

By The Device Desk · Endpoint AI Finder · Published 2026-10-11

Desk research from public vendor pages read on 27 September and 11 October 2026. Profiles follow our published method; we did not run the products.

Vendor pages read September and October 2026 · updated 2026-10-13

Where do their controls sit?

Filled or hatched marker: Koi
Dashed teal ring: Zenity, described

DEV Filled marker: described on the product pages we read
DEV Hatched marker: partly described (another component, a narrower scope, or method not detailed)
DEV Dashed marker: not in our sources (it may exist; we did not find it)

The map shows where each product's own pages describe a control, or where your answers point. It is not a measure of how well a product works.

What are the facts, side by side?

Koi (Palo Alto Networks) and Zenity, from each product's own pages. Differs is computed from recorded statuses, not wording.
Fact	Koi	Zenity
Owner	Palo Alto Networks (acquisition completed 14 April 2026)	None
Positioning	Koi, now sold by Palo Alto Networks as Cortex Agentic Endpoint Security, gives visibility into models, MCPs and extensions on endpoints, removes insecure packages, extensions and AI tools in one click, and stops malicious actions.	An AI agent security platform covering AI observability, posture management, exposure management, runtime boundaries, agentic identity, MCP security and AI detection and response, with a long list of SaaS and cloud agent integrations.
How it reaches devices	Available as a Cortex XDR module or as a standalone agent. koi.ai now redirects to the Palo Alto Networks page. Source: Palo Alto Networks: Cortex Agentic Endpoint Security · Read 27 Sep 2026	Native agent hooks and the Zenity MCP gateway for coding agents; how it reaches endpoints is not detailed. Source: Zenity: coding and personal agents · Read 27 Sep 2026
On-device controlDiffers	DescribedAgent-based visibility into models, MCPs and extensions, one-click removal of insecure packages, extensions and AI tools, and blocking of unsafe AI application interactions. Source: Palo Alto Networks: Cortex Agentic Endpoint Security · Read 27 Sep 2026	Partly describedBlocks or modifies a dangerous tool call before it executes through native agent hooks; how it reaches endpoints is not detailed. Source: Zenity: coding and personal agents · Read 27 Sep 2026
Browser extension	Not in our sourcesNot described on the pages we read.	Not in our sourcesNot described on the pages we read.
Network or SSE proxy	Not in our sourcesNot described on the pages we read.	Not in our sourcesNot described on the pages we read.
AI or MCP gatewayDiffers	Not in our sourcesNot described on the pages we read.	DescribedThe Zenity MCP gateway can block or modify a tool call before it executes. Source: Zenity: coding and personal agents · Read 27 Sep 2026
Names the coding agents it covers	MatchesA Palo Alto Networks blog of 18 August 2026 names Claude Code, Cursor, Codex and Antigravity. Source: Palo Alto Networks blog: A Quarter of Innovation with Koi Agentic Endpoint Security · Read 11 Oct 2026	MatchesNames Claude Code and Cowork, ChatGPT Codex, GitHub Copilot and Cursor. Source: Zenity: coding and personal agents · Read 27 Sep 2026
Decides on a tool call before it runsDiffers	PartlyBlocks unsafe AI application interactions and prevents prompt injections; decisions on individual tool calls are not described. Source: Palo Alto Networks: Cortex Agentic Endpoint Security · Read 27 Sep 2026	MatchesBlocks or modifies a dangerous tool call before it executes. Source: Zenity: coding and personal agents · Read 27 Sep 2026
Controls what goes into browser AI	Not in our sources	Not in our sources
Rolls out through EDR or device management you runDiffers	PartlyA Cortex XDR module, or its own standalone agent. Source: Palo Alto Networks: Cortex Agentic Endpoint Security · Read 27 Sep 2026	Not in our sources
Can warn or ask instead of only blockingDiffers	Not in our sources	PartlyCan modify a tool call as well as block it; asking the user is not described. Source: Zenity: coding and personal agents · Read 27 Sep 2026
Can block an agent, tool or action	MatchesStops malicious actions and removes insecure packages, extensions and AI tools in one click. Source: Palo Alto Networks: Cortex Agentic Endpoint Security · Read 27 Sep 2026	MatchesBlocks a dangerous tool call before it executes. Source: Zenity: coding and personal agents · Read 27 Sep 2026
Has a watch-only or simulation mode	Not in our sources	Not in our sources
Records who or what took each actionDiffers	Not in our sources	PartlyAI observability and agentic identity and access management are named capabilities. Source: Zenity platform · Read 27 Sep 2026
Also covers SaaS, cloud or homegrown AIDiffers	PartlyPalo Alto Networks plans integration with Prisma AIRS, its wider AI security platform. Source: Palo Alto Networks press release: acquisition of Koi completed · Read 27 Sep 2026	MatchesIntegrations include Bedrock, Azure AI Foundry, ChatGPT Enterprise, Claude Enterprise, Copilot Studio, Vertex AI, Microsoft 365 Copilot, Power Platform, Salesforce, Agentforce and ServiceNow. Source: Zenity platform · Read 27 Sep 2026
Has a public price or tiers (vendor site or marketplace)	Not in our sources	Not in our sources
Built into	Offered as a Cortex XDR module. Source: Palo Alto Networks press release: acquisition of Koi completed · Read 27 Sep 2026	None
Works with	None in our sources	None in our sources
Price	Not published. Source: Palo Alto Networks: Cortex Agentic Endpoint Security · Read 27 Sep 2026	Not published. Source: Zenity homepage · Read 27 Sep 2026

Where do they differ?

On-device control: Koi describes it; Zenity partly describes it.
AI or MCP gateway: Koi is not in our sources; Zenity describes it.
Decides on a tool call before it runs: Koi partly matches; Zenity matches.
Rolls out through EDR or device management you run: Koi partly matches; Zenity is not in our sources.
Can warn or ask instead of only blocking: Koi is not in our sources; Zenity partly matches.
Records who or what took each action: Koi is not in our sources; Zenity partly matches.
Also covers SaaS, cloud or homegrown AI: Koi partly matches; Zenity matches.

Choose Koi if

You already run Palo Alto Networks Cortex XDR
You want to find and remove risky extensions and packages across the fleet

Choose Zenity if

Microsoft 365 Copilot, Copilot Studio, Salesforce or ServiceNow agents matter as much as laptops
You want an MCP gateway that can modify a tool call, not only block it

Which limits should you check?

Koi

Agent-based: it adds an agent unless you run it as a Cortex XDR module.
Warn or ask actions and a record that separates a person from an agent are not described on the pages we read, and no pricing is published.

Zenity

How it reaches endpoints is not detailed on the pages we read.
No pricing published, and asking the user before an action is not described.

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