Is AI Access Security or Koi better for AI endpoint control?

Neither is scored on this site. AI Access Security describes 1 of four product control types and Koi 1 on the pages we read, and they differ on 8 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?

AI Access Security: Not in our sources. Koi: Partly. Warn or ask: AI Access Security Not in our sources, Koi Not in our sources.

Do AI Access Security or Koi publish prices?

AI Access Security: Not published. Koi: Not published.

HEAD-TO-HEAD · FACTS ONLY

AI Access Security vs Koi: AI endpoint control facts side by side

Short answer

AI Access Security describes 1 of the four product control types on the pages we read and Koi describes 1; they differ on on-device control and network or SSE proxy. On decisions, AI Access Security does not describe tool-call decisions on the pages we read and Koi describes some control over tool calls. 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: AI Access Security
Dashed teal ring: Koi, 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?

AI Access Security (Palo Alto Networks) and Koi (Palo Alto Networks), from each product's own pages. Differs is computed from recorded statuses, not wording.
Fact	AI Access Security	Koi
Owner	None	Palo Alto Networks (acquisition completed 14 April 2026)
Positioning	Palo Alto Networks' control for employee use of GenAI apps, linked from its Prisma Access and SASE pages: visibility into shadow AI across 4,000+ GenAI applications, control over their use, and protection against sensitive data loss and malicious responses.	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.
How it reaches devices	Part of Palo Alto Networks' SASE offering, linked from Prisma Access; the page does not describe an endpoint component. Source: Palo Alto Networks: AI Access Security · Read 11 Oct 2026	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
On-device controlDiffers	Not in our sourcesNot described on the pages we read.	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
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 proxyDiffers	DescribedVisibility into shadow AI across 4,000+ GenAI applications, control, and protection against sensitive data loss, delivered with Palo Alto Networks' SASE. Source: Palo Alto Networks: AI Access Security · Read 11 Oct 2026	Not in our sourcesNot described on the pages we read.
AI or MCP gateway	Not in our sourcesNot described on the pages we read.	Not in our sourcesNot described on the pages we read.
Names the coding agents it coversDiffers	Not in our sources	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
Decides on a tool call before it runsDiffers	Not in our sources	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
Controls what goes into browser AIDiffers	PartlyPrevents sensitive data loss in GenAI apps; prompt-level controls are not detailed on the page. Source: Palo Alto Networks: AI Access Security · Read 11 Oct 2026	Not in our sources
Rolls out through EDR or device management you runDiffers	Not in our sources	PartlyA Cortex XDR module, or its own standalone agent. Source: Palo Alto Networks: Cortex Agentic Endpoint Security · Read 27 Sep 2026
Can warn or ask instead of only blocking	Not in our sources	Not in our sources
Can block an agent, tool or actionDiffers	PartlyControl over GenAI app use is listed; the actions available are not detailed. Source: Palo Alto Networks: AI Access Security · Read 11 Oct 2026	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
Has a watch-only or simulation mode	Not in our sources	Not in our sources
Records who or what took each action	Not in our sources	Not in our sources
Also covers SaaS, cloud or homegrown AIDiffers	Not in our sources	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
Has a public price or tiers (vendor site or marketplace)	Not in our sources	Not in our sources
Built into	None	Offered as a Cortex XDR module. Source: Palo Alto Networks press release: acquisition of Koi completed · Read 27 Sep 2026
Works with	Part of Palo Alto Networks' SASE offering, linked from Prisma Access. Source: Palo Alto Networks: AI Access Security · Read 11 Oct 2026	None in our sources
Price	Not published. Source: Palo Alto Networks: AI Access Security · Read 11 Oct 2026	Not published. Source: Palo Alto Networks: Cortex Agentic Endpoint Security · Read 27 Sep 2026

Where do they differ?

On-device control: AI Access Security is not in our sources; Koi describes it.
Network or SSE proxy: AI Access Security describes it; Koi is not in our sources.
Names the coding agents it covers: AI Access Security is not in our sources; Koi matches.
Decides on a tool call before it runs: AI Access Security is not in our sources; Koi partly matches.
Controls what goes into browser AI: AI Access Security partly matches; Koi is not in our sources.
Rolls out through EDR or device management you run: AI Access Security is not in our sources; Koi partly matches.
Can block an agent, tool or action: AI Access Security partly matches; Koi matches.
Also covers SaaS, cloud or homegrown AI: AI Access Security is not in our sources; Koi partly matches.

Choose AI Access Security if

You already run Palo Alto Networks Prisma Access and want GenAI app controls in the same place
Your main concern is employees using many GenAI web apps rather than agents on laptops

Choose Koi if

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

Which limits should you check?