Is Noma or Onyx better for AI endpoint control?

Neither is scored on this site. Noma describes 1 of four product control types and Onyx 3 on the pages we read, and they differ on 9 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?

Noma: Partly. Onyx: Matches. Warn or ask: Noma Partly, Onyx Matches.

Do Noma or Onyx publish prices?

Noma: Marketplace list price: $200,000 for a 12-month contract on AWS Marketplace. No pricing page on noma.security. Onyx: Not published.

HEAD-TO-HEAD · FACTS ONLY

Noma vs Onyx: AI endpoint control facts side by side

Short answer

Noma describes 1 of the four product control types on the pages we read and Onyx describes 3; they differ on browser extension and AI or MCP gateway. On decisions, Noma describes some control over tool calls and Onyx decides on a tool call before it runs. 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: Noma
Dashed teal ring: Onyx, 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?

Noma Security and Onyx Security, from each product's own pages. Differs is computed from recorded statuses, not wording.
Fact	Noma	Onyx
Owner	None	None
Positioning	An AI security platform with AI-SPM, Agent Access Control, AI detection and response and AI red teaming, covering agents on endpoints, in SaaS and in homegrown apps.	"The Secure AI Control Plane for the Agentic Era": inline inspection of prompts, tool calls and model responses across browser AI, coding assistants, desktop AI agents, cloud workloads and MCP servers. Based in Tel Aviv and New York.
How it reaches devices	Discovers endpoint agents through your existing EDR or MDM, with no new endpoint agent to deploy. Source: Noma Security: endpoint agents · Read 27 Sep 2026	Endpoint agents, browser extensions, APIs and gateways. Source: Onyx Security: AI security platform · Read 27 Sep 2026
On-device control	DescribedDiscovers endpoint agents such as Claude Code, Cursor and Codex with their MCP servers and skills, blocks unauthorized and malicious ones, and inspects activity at runtime. Source: Noma Security: endpoint agents · Read 27 Sep 2026	DescribedEndpoint agents cover coding assistants and desktop AI agents. Source: Onyx Security: AI security platform · Read 27 Sep 2026
Browser extensionDiffers	Not in our sourcesNot described on the pages we read.	DescribedBrowser extensions cover browser AI. Source: Onyx Security: AI security platform · Read 27 Sep 2026
Network or SSE proxy	Not in our sourcesNot described on the pages we read.	Not in our sourcesNot described on the pages we read.
AI or MCP gatewayDiffers	Not in our sourcesNot described on the pages we read.	DescribedGateways and APIs inspect traffic inline. Source: Onyx Security: AI security platform · Read 27 Sep 2026
Names the coding agents it coversDiffers	MatchesNames Claude Code, Cursor and Codex. Source: Noma Security: endpoint agents · Read 27 Sep 2026	PartlyCovers coding assistants; specific tools are not named on the pages we read. Source: Onyx Security: AI security platform · Read 27 Sep 2026
Decides on a tool call before it runsDiffers	PartlyRuntime inspection of the event, the session, the identity behind the agent and the data it reaches; decisions on individual tool calls are described less specifically. Source: Noma Security: endpoint agents · Read 27 Sep 2026	MatchesInspects every prompt, tool call and model response inline. Source: Onyx Security: AI security platform · Read 27 Sep 2026
Controls what goes into browser AIDiffers	Not in our sources	MatchesCan mask data in browser AI as well as block it. Source: Onyx Security: AI security platform · Read 27 Sep 2026
Rolls out through EDR or device management you runDiffers	MatchesThrough your existing EDR or MDM, with no new endpoint agent. Source: Noma Security: endpoint agents · Read 27 Sep 2026	Not in our sources
Can warn or ask instead of only blockingDiffers	PartlyStates that runtime decisions can route to a human. Source: Noma Security: endpoint agents (re-read) · Read 13 Oct 2026	MatchesFive actions: alert, block, mask, steer or ask. Source: Onyx Security: AI security platform · Read 27 Sep 2026
Can block an agent, tool or action	MatchesBlocks unauthorized and malicious agents. Source: Noma Security: endpoint agents · Read 27 Sep 2026	MatchesBlock is one of five actions. Source: Onyx Security: AI security platform · Read 27 Sep 2026
Has a watch-only or simulation modeDiffers	Not in our sources	PartlyAlert is one of five actions; a simulation mode is not described. Source: Onyx Security: AI security platform · Read 27 Sep 2026
Records who or what took each action	PartlyKeeps a live registry of allowed agents, MCP servers and skills and inspects the identity behind each agent. Source: Noma Security: endpoint agents · Read 27 Sep 2026	PartlyIntegrates with Okta, Entra and Splunk; separating a person from an agent is not described. Source: Onyx Security: AI security platform · Read 27 Sep 2026
Also covers SaaS, cloud or homegrown AI	MatchesCovers endpoint, SaaS and homegrown agents. Source: Noma Security homepage · Read 27 Sep 2026	MatchesCloud workloads and MCP servers as well as devices. Source: Onyx Security: AI security platform · Read 27 Sep 2026
Has a public price or tiers (vendor site or marketplace)Differs	MatchesAWS Marketplace lists the Noma Security Platform at $200,000 for a 12-month contract (marketplace list price); noma.security has no pricing page. Source: AWS Marketplace: Noma Security Platform · Read 11 Oct 2026	Not in our sources
Built into	None	None
Works with	None in our sources	Lists CrowdStrike among its integrations. Source: Onyx Security: AI security platform · Read 27 Sep 2026
Price	Marketplace list price: $200,000 for a 12-month contract on AWS Marketplace. No pricing page on noma.security. Source: AWS Marketplace: Noma Security Platform · Read 11 Oct 2026	Not published. Source: Onyx Security homepage · Read 27 Sep 2026

Where do they differ?

Browser extension: Noma is not in our sources; Onyx describes it.
AI or MCP gateway: Noma is not in our sources; Onyx describes it.
Names the coding agents it covers: Noma matches; Onyx partly matches.
Decides on a tool call before it runs: Noma partly matches; Onyx matches.
Controls what goes into browser AI: Noma is not in our sources; Onyx matches.
Rolls out through EDR or device management you run: Noma matches; Onyx is not in our sources.
Can warn or ask instead of only blocking: Noma partly matches; Onyx matches.
Has a watch-only or simulation mode: Noma is not in our sources; Onyx partly matches.
Has a public price or tiers (vendor site or marketplace): Noma matches; Onyx is not in our sources.

Choose Noma if

Agents run on laptops, in SaaS and in apps you build, and you want one place to see them
You want discovery through existing EDR or MDM without a new agent

Choose Onyx if

You want masking or steering rather than only allow or block
AI use spans the browser, desktop apps, coding tools and cloud workloads

Which limits should you check?

Noma

A watch-only or simulation mode is not described on the pages we read.
Decisions on individual tool calls are described less specifically than discovery, and the only public price is a $200,000 a year marketplace listing.

Onyx

Uses its own endpoint agents and browser extensions, so there is something new to roll out to devices.
No pricing published, and specific coding agents are not named on the pages we read.

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