HEAD TO HEAD
Onyx Security matched with Zenity: agentic endpoint security compared
SHORT ANSWER
On our published weights Onyx Security scores higher overall, 6.85 to 6.75 out of 10. Onyx scores higher on verdict range and rollout path; Zenity scores higher on capability rules, named agent coverage and public proof; they tie on stop before it runs, actor trail and cloud and workspace reach. 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?
Onyx Security
Inline control with the widest set of verdicts
Rank 2 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 | Onyx Security | Zenity | Higher |
|---|---|---|---|---|
| Stop before it runs | 25% | 8 / 10 Inspects every prompt, tool call and model response inline before acting on it. Source: Onyx Security: AI security platform · 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 | Tie |
| Verdict range | 15% | 7 / 10 Documents 4 of six verdict types: Block or deny, Ask a person, Alert or warn and Mask or modify. "Five actions: alert, block, mask, steer, or ask." Source: Onyx Security: AI security platform · 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 | Onyx |
| Capability rules | 15% | 6 / 10 Agent posture covers misconfigurations, excessive permissions and credential handling; rules by capability type (shell, packages, cloud CLIs) are not itemized. Source: Onyx Security: AI security platform · 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 | Zenity |
| Actor trail | 10% | 7 / 10 Agent identity and access governance is a named solution; per-action attribution detail is lighter than the leader. Source: Onyx Security homepage · Read 27 Sep 2026 | 7 / 10 Agentic identity and access management is a named capability. Source: Zenity platform · Read 27 Sep 2026 | Tie |
| Rollout path | 10% | 6 / 10 Endpoint agents, browser extensions, APIs and gateways; the device component is resident software. Source: Onyx Security: AI security platform · 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 | Onyx |
| Cloud and workspace reach | 10% | 9 / 10 Covers cloud workloads alongside browser AI, coding assistants, desktop agents and MCP servers, across SaaS, cloud, endpoint and code. Source: Onyx Security: AI security platform · 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 | Tie |
| Named agent coverage | 5% | 0 / 10 Names 0 of the six agents we track: none. Source: Onyx Security: AI security platform · Read 27 Sep 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 Series B of $113M announced 29 July 2026; SOC 2 Type II and ISO 27001 listed; pricing not published. Source: Onyx Security blog: $113M Series B (29 July 2026) · 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 | Onyx Security | Zenity |
|---|---|---|
| Block or deny | Documented | Documented |
| Ask a person | Documented | Not described |
| Alert or warn | Documented | Not described |
| Mask or modify | Documented | Documented |
| Simulate first | Not described | Not described |
| Remove or scale back | Not described | Not described |
- Onyx Security: "Five actions: alert, block, mask, steer, or ask."
Source: Onyx Security: AI security platform · 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?
Onyx Security
Endpoint agents, browser extensions, APIs and gateways; Onyx says no SDK changes are needed.
Source: Onyx Security: AI security platform · 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 | Onyx Security | Zenity |
|---|---|---|
| Claude Code | Not named | Named |
| Cursor | Not named | Named |
| GitHub Copilot | Not named | Named |
| OpenAI Codex | Not named | Named |
| Windsurf | Not named | Not named |
| Claude Desktop | Not named | Not named |
| Named | 0 of 6 | 4 of 6 |
Which should you choose?
Choose Onyx Security if you need cloud and workspace reach and stop before it runs. Onyx Security is best for: Inline control with the widest set of verdicts.
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, Onyx Security or Zenity?
On our published weights Onyx Security scores higher overall, 6.85 to 6.75 out of 10. See the criterion table above for where each scores higher.
Which stops an agent action before it runs more fully, Onyx Security or Zenity?
They tie at 8. Onyx Security: Inspects every prompt, tool call and model response inline before acting on it. Zenity: Blocks or modifies a dangerous coding-agent tool call before it executes, through native agent hooks and the Zenity MCP gateway.
Do Onyx Security and Zenity publish prices?
Onyx Security: not published. Onyx Security publishes no pricing. Zenity: not published. Zenity publishes no pricing.