Best AI Security markBest AI Security

Head to head · Checked against vendor sites, September 2026

Zenity vs Harmonic Security: 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 visibility, tool-call control, identity and audit, maturity and breadth; Harmonic Security scores higher on policy and footprint. Neither publishes list prices. Harmonic Security publishes tier names.

Zenity

Best for SaaS and Microsoft agent estates

Read the Zenity review

Harmonic Security

Best for data protection in everyday AI use

Read the Harmonic Security review

How do Zenity and Harmonic Security compare on each criterion?

Endpoint AI control score, editorial assessment 0-10. Edge is the higher score on each row.
CriterionWeightZenityHarmonic SecurityEdge
Visibility22%87Zenity
Why these scores

Zenity: Discovers coding and personal agents on laptops and desktops and the MCP servers, tools and data they connect to.

Harmonic Security: Finds AI tool use across browsers, desktop apps and CLI tools, including local tools on devices.

Tool-call control20%87Zenity
Why these scores

Zenity: Blocks or modifies a dangerous tool call before it executes through native agent hooks and the Zenity MCP gateway.

Harmonic Security: Governs at the MCP layer and tool surface, with permissions for what agents can read, write to and act on.

Policy15%78Harmonic Security
Why these scores

Zenity: Runtime Boundaries and AISPM; context-based rules described at platform level.

Harmonic Security: Block in real time, warn the employee with context, or log silently; data classification by work intent.

Identity and audit12%76Zenity
Why these scores

Zenity: Agentic identity and access management is a named capability.

Harmonic Security: Unified governance for humans and agents in Harmonic Command; per-action attribution not detailed.

Footprint13%58Harmonic Security
Why these scores

Zenity: Endpoint deployment method is not published on the pages we reviewed.

Harmonic Security: Rolls out through Intune, JAMF, Kandji or Group Policy with no proxy redesign.

Breadth8%96Zenity
Why these scores

Zenity: Agentic SaaS, cloud and homegrown agents with a long integrations list, including Microsoft 365 Copilot, Copilot Studio, Salesforce Agentforce and ServiceNow.

Harmonic Security: Centered on data protection in AI use; browser, desktop, MCP and API surfaces.

Maturity10%87Zenity
Why these scores

Zenity: Established agent security vendor with a wide public integrations catalog and analyst mentions cited by the vendor; pricing not published.

Harmonic Security: Publishes named packaging tiers (Explore, Guide, Command) but no prices.

Total100%7.47.1Zenity

How we score

How do they deploy, and what do they cost?

Published facts, reviewed September 2026.
AttributeZenityHarmonic Security
OwnerNot acquiredNot acquired
How it reaches devicesAgent hooks and MCP gateway; method not publishedIntune, JAMF, Kandji or Group Policy
Deployment detailZenity 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.Harmonic states it rolls out through Intune, JAMF, Kandji or Group Policy, with no proxy redesign and no certificate changes.
PricingContact sales. Zenity does not publish pricing.Tiers are published (Explore, Guide, Command), prices are not. Contact sales.

Source: zenity.io · Zenity platform · Zenity coding and personal agents · harmonic.security · Harmonic Command · Harmonic pricing · Reviewed Sep 2026

Which should you choose?

Choose Zenity if

  • Your priority matches our designation for Zenity: best for SaaS and Microsoft agent estates.
  • Your agents also run in SaaS platforms, cloud workloads or apps you build: Zenity scores 9 to 6.
  • You need a fleet-wide inventory of AI agents, MCP servers, extensions and credentials on devices: Zenity scores 8 to 7.

Choose Harmonic Security if

  • Your priority matches our designation for Harmonic Security: best for data protection in everyday AI use.
  • You want a light rollout with published deployment detail, ideally through existing EDR or MDM: Harmonic Security scores 8 to 5.
  • You want context-aware rules and answers beyond allow and block: Harmonic Security scores 8 to 7.

Frequently asked questions

Which is better, Zenity or Harmonic Security?

Zenity scores higher overall on our weights (7.4 vs 7.1 out of 10). Zenity scores higher on visibility, tool-call control, identity and audit, maturity and breadth; Harmonic Security scores higher on policy and footprint. Scores are editorial assessments from public vendor material, reviewed September 2026.

Do Zenity and Harmonic Security publish prices?

No. Neither publishes list prices, so ask both for a quote. Harmonic Security publishes its tier names (Explore, Guide, Command).

Do Zenity or Harmonic Security 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. Harmonic Security: Intune, JAMF, Kandji or Group Policy.

Related

Sources