HEAD TO HEAD
Harmonic Security matched with Zenity: agentic endpoint security compared
SHORT ANSWER
On our published weights Zenity scores higher overall, 6.75 to 5.90 out of 10. Harmonic scores higher on rollout path; Zenity scores higher on stop before it runs, actor trail, cloud and workspace reach, named agent coverage and public proof; they tie on verdict range and capability rules. Which fits depends on which of those criteria matters most to you.
By The Agent Desk · Agentic Endpoint Compare · Published 2026-10-11
Desk research from public vendor pages, press releases and standards pages read on 27 September and 11 October 2026. Editorial assessment; we did not run the products.
How do they compare at a glance?
Harmonic Security
Coaching people through AI data risk
Rank 6 of 8 among broader AI security platforms
Zenity
Agents across SaaS, cloud and coding tools
Rank 3 of 8 among broader AI security platforms
Which scores higher on each criterion?
| Criterion | Weight | Harmonic Security | Zenity | Higher |
|---|---|---|---|---|
| Stop before it runs | 25% | 7 / 10 Governs at the MCP layer and at the tool surface and can block in real time. Source: Harmonic Security: Harmonic Command · Read 27 Sep 2026 | 8 / 10 Blocks or modifies a dangerous coding-agent tool call before it executes, through native agent hooks and the Zenity MCP gateway. Source: Zenity: coding and personal agents · Read 27 Sep 2026 | Zenity |
| Verdict range | 15% | 3 / 10 Documents 2 of six verdict types: Block or deny and Alert or warn. "Block in real time, warn the employee with context, or log silently." Source: Harmonic Security homepage · Read 27 Sep 2026 | 3 / 10 Documents 2 of six verdict types: Block or deny and Mask or modify. "Blocks or modifies a dangerous tool call before it executes." Source: Zenity: coding and personal agents · Read 27 Sep 2026 | Tie |
| Capability rules | 15% | 7 / 10 Harmonic Command sets which systems agents can read, write to and act on. Source: Harmonic Security: Harmonic Command · Read 27 Sep 2026 | 7 / 10 Monitors what code an agent reads, what commands it runs, what it installs and what it sends out, with Runtime Boundaries at platform level. Source: Zenity: coding and personal agents · Read 27 Sep 2026 | Tie |
| Actor trail | 10% | 6 / 10 Unified governance for people and agents; per-action attribution is not detailed. Source: Harmonic Security: Harmonic Command · Read 27 Sep 2026 | 7 / 10 Agentic identity and access management is a named capability. Source: Zenity platform · Read 27 Sep 2026 | Zenity |
| Rollout path | 10% | 8 / 10 Rolls out through Intune, JAMF, Kandji or Group Policy. Source: Harmonic Security homepage · Read 27 Sep 2026 | 5 / 10 How the endpoint component reaches laptops is not published on the pages we read. Source: Zenity: coding and personal agents · Read 27 Sep 2026 | Harmonic |
| Cloud and workspace reach | 10% | 4 / 10 Browser, desktop, CLI, MCP gateway and API surfaces; agents running in cloud workspaces or cloud apps are not described. Source: Harmonic Security homepage · Read 27 Sep 2026 | 9 / 10 Covers cloud and homegrown agents and agentic SaaS, with integrations including AWS Bedrock, Azure AI Foundry and Google Vertex AI. Source: Zenity platform · Read 27 Sep 2026 | Zenity |
| Named agent coverage | 5% | 3 / 10 Names 2 of the six agents we track: Claude Code and GitHub Copilot. Source: Harmonic Security pricing (re-read 11 October 2026) · Read 11 Oct 2026 | 7 / 10 Names 4 of the six agents we track: Claude Code, Cursor, GitHub Copilot and OpenAI Codex. Source: Zenity: coding and personal agents · Read 27 Sep 2026 | Zenity |
| Public proof | 10% | 7 / 10 Tier names are published (Explore, Guide, Command) but no prices. Source: Harmonic Security pricing · Read 27 Sep 2026 | 8 / 10 A wide public integrations catalog, a $125 million Series C (3 August 2026) and analyst recognition cited by the vendor; pricing not published. Source: Zenity platform · Read 27 Sep 2026 | Zenity |
Which verdicts does each document?
| Verdict type | Harmonic Security | Zenity |
|---|---|---|
| Block or deny | Documented | Documented |
| Ask a person | Not described | Not described |
| Alert or warn | Documented | Not described |
| Mask or modify | Not described | Documented |
| Simulate first | Not described | Not described |
| Remove or scale back | Not described | Not described |
- Harmonic Security: "Block in real time, warn the employee with context, or log silently."
Source: Harmonic Security homepage · Read 27 Sep 2026
- Zenity: "Blocks or modifies a dangerous tool call before it executes."
Source: Zenity: coding and personal agents · Read 27 Sep 2026
How does each reach devices?
Harmonic Security
Intune, JAMF, Kandji or Group Policy.
Source: Harmonic Security homepage · Read 27 Sep 2026
Zenity
Native agent hooks, OpenTelemetry and the Zenity MCP gateway for local agents; how the endpoint component is installed is not published on the pages we read.
Source: Zenity: coding and personal agents · Read 27 Sep 2026
Which agents does each name?
| Agent | Harmonic Security | Zenity |
|---|---|---|
| Claude Code | Named | Named |
| Cursor | Not named | Named |
| GitHub Copilot | Named | Named |
| OpenAI Codex | Not named | Named |
| Windsurf | Not named | Not named |
| Claude Desktop | Not named | Not named |
| Named | 2 of 6 | 4 of 6 |
Which should you choose?
Choose Harmonic Security if you need rollout path and stop before it runs. Harmonic Security is best for: Coaching people through AI data risk.
Choose Zenity if you need cloud and workspace reach and stop before it runs. Zenity is best for: Agents across SaaS, cloud and coding tools.
Frequently asked questions
Which is better for agentic endpoint security, Harmonic Security or Zenity?
On our published weights Zenity scores higher overall, 6.75 to 5.90 out of 10. See the criterion table above for where each scores higher.
Which stops an agent action before it runs more fully, Harmonic Security or Zenity?
Zenity scores higher on stopping an action before it runs (8 to 7). Harmonic Security: Governs at the MCP layer and at the tool surface and can block in real time. Zenity: Blocks or modifies a dangerous coding-agent tool call before it executes, through native agent hooks and the Zenity MCP gateway.
Do Harmonic Security and Zenity publish prices?
Harmonic Security: not published. Three tiers are named (Explore, Guide, Command); prices are not published. Zenity: not published. Zenity publishes no pricing.