Head to head · Checked against vendor sites, September 2026
Zenity vs Koi (Palo Alto Networks): AI agent security compared
The verdict
Zenity scores higher overall on our weights (7.4 vs 7.1 out of 10). Zenity scores higher on tool-call control, identity and audit, maturity and breadth; Koi scores higher on visibility and footprint. They tie on policy. Neither publishes list prices.
Koi (Palo Alto Networks Cortex Agentic Endpoint Security)
Owner: Palo Alto Networks (acquisition completed 14 April 2026)
Best for Palo Alto Cortex customers
How do Zenity and Koi compare on each criterion?
| Criterion | Weight | Zenity | Koi | Edge |
|---|---|---|---|---|
| Visibility | 22% | 8 | 9 | Koi |
Why these scoresZenity: Discovers coding and personal agents on laptops and desktops and the MCP servers, tools and data they connect to. Koi: Visibility into models, MCPs, extensions and packages on the endpoint, with risk scoring. | ||||
| Tool-call control | 20% | 8 | 7 | Zenity |
Why these scoresZenity: Blocks or modifies a dangerous tool call before it executes through native agent hooks and the Zenity MCP gateway. Koi: Blocks unsafe AI application interactions and prevents prompt injections; tool-call level mechanics not published. | ||||
| Policy | 15% | 7 | 7 | Tie |
Why these scoresZenity: Runtime Boundaries and AISPM; context-based rules described at platform level. Koi: Out-of-the-box policies and one-click removal of insecure packages, extensions and AI tools. | ||||
| Identity and audit | 12% | 7 | 5 | Zenity |
Why these scoresZenity: Agentic identity and access management is a named capability. Koi: Agent vs human attribution not described on the pages we reviewed. | ||||
| Footprint | 13% | 5 | 6 | Koi |
Why these scoresZenity: Endpoint deployment method is not published on the pages we reviewed. Koi: Agent-based; offered as a Cortex XDR module and as a standalone offering. | ||||
| Breadth | 8% | 9 | 7 | Zenity |
Why these scoresZenity: Agentic SaaS, cloud and homegrown agents with a long integrations list, including Microsoft 365 Copilot, Copilot Studio, Salesforce Agentforce and ServiceNow. Koi: Palo Alto Networks is integrating Koi with Prisma AIRS for wider AI coverage. | ||||
| Maturity | 10% | 8 | 7 | Zenity |
Why these scoresZenity: Established agent security vendor with a wide public integrations catalog and analyst mentions cited by the vendor; pricing not published. Koi: Acquisition completed 14 April 2026 by Palo Alto Networks; pricing not published. | ||||
| Total | 100% | 7.4 | 7.1 | Zenity |
How do they deploy, and what do they cost?
| Attribute | Zenity | Koi |
|---|---|---|
| Owner | Not acquired | Palo Alto Networks (acquisition completed 14 April 2026) |
| How it reaches devices | Agent hooks and MCP gateway; method not published | Cortex XDR module or standalone agent |
| Deployment detail | Zenity describes "lightweight monitoring, detection, and response" for local agents, using native agent hooks, OpenTelemetry and its MCP gateway. The pages we reviewed do not say whether the endpoint component installs its own agent or deploys through EDR or MDM. SaaS coverage connects to the platforms listed above. | Integrates with Cortex XDR as a module and is also available standalone as an agent-based deployment. If you run Cortex XDR, this is the lowest-friction path; if you run another EDR, expect a separate agent. |
| Pricing | Contact sales. Zenity does not publish pricing. | Contact sales. Pricing is not published. |
Source: zenity.io · Zenity platform · Zenity coding and personal agents · Cortex Agentic Endpoint Security · Press release, 14 April 2026 · Reviewed Sep 2026
Which should you choose?
Choose Zenity if
- Your priority matches our designation for Zenity: best for SaaS and Microsoft agent estates.
- You need an audit record that separates agent actions from human actions: Zenity scores 7 to 5.
- Your agents also run in SaaS platforms, cloud workloads or apps you build: Zenity scores 9 to 7.
Choose Koi if
- Your priority matches our designation for Koi: best for Palo Alto Cortex customers.
- You need a fleet-wide inventory of AI agents, MCP servers, extensions and credentials on devices: Koi scores 9 to 8.
- You want a light rollout with published deployment detail, ideally through existing EDR or MDM: Koi scores 6 to 5.
Frequently asked questions
Which is better, Zenity or Koi (Palo Alto Networks)?
Zenity scores higher overall on our weights (7.4 vs 7.1 out of 10). Zenity scores higher on tool-call control, identity and audit, maturity and breadth; Koi scores higher on visibility and footprint. They tie on policy. Scores are editorial assessments from public vendor material, reviewed September 2026.
Do Zenity and Koi (Palo Alto Networks) publish prices?
No. Neither publishes list prices, so ask both for a quote.
Do Zenity or Koi (Palo Alto Networks) replace EDR?
No. The tools in this guide add control over AI agent actions and work alongside EDR. Zenity: Agent hooks and MCP gateway; method not published. Koi: Cortex XDR module or standalone agent.
Related
Sources
- zenity.io · Reviewed Sep 2026
- Zenity platform · Reviewed Sep 2026
- Zenity coding and personal agents · Reviewed Sep 2026
- Cortex Agentic Endpoint Security · Reviewed Sep 2026
- Press release, 14 April 2026 · Reviewed Sep 2026