Is Lasso or Onyx better for AI endpoint control?

Neither is scored on this site. Lasso describes 3 of four product control types and Onyx 3 on the pages we read, and they differ on 6 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?

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

Do Lasso or Onyx publish prices?

Lasso: Marketplace list price: Lasso for Employees, annual commit for GenAI chatbots, $20,000 for 12 months on AWS Marketplace. Other products: not published. Onyx: Not published.

HEAD-TO-HEAD · FACTS ONLY

Lasso vs Onyx: AI endpoint control facts side by side

Short answer

Lasso describes 3 of the four product control types on the pages we read and Onyx describes 3; they differ on on-device control and network or SSE proxy. On decisions, Lasso decides on a tool call before it runs 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: Lasso
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?

Lasso Security and Onyx Security, from each product's own pages. Differs is computed from recorded statuses, not wording.
Fact	Lasso	Onyx
Owner	None	None
Positioning	An AI security platform with discovery and an AI-BOM, posture management, automated red teaming and runtime enforcement at the proxy, API or AI gateway layer, plus usage control through a browser extension and an open-source MCP gateway.	"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	Several components: a browser extension and proxy integrations for usage control, an open-source MCP gateway, and Claude Code lifecycle hooks set through the enterprise management platform. Source: Lasso Security: AI usage control · Read 27 Sep 2026	Endpoint agents, browser extensions, APIs and gateways. Source: Onyx Security: AI security platform · Read 27 Sep 2026
On-device controlDiffers	Partly describedConnects directly to Claude Code's lifecycle hooks via the enterprise management platform and inspects every tool call before it runs; a resident device agent is not described. Source: Lasso Security: AI coding assistants · Read 27 Sep 2026	DescribedEndpoint agents cover coding assistants and desktop AI agents. Source: Onyx Security: AI security platform · Read 27 Sep 2026
Browser extension	DescribedAI usage control through a browser extension. Source: Lasso Security: AI usage control · Read 27 Sep 2026	DescribedBrowser extensions cover browser AI. Source: Onyx Security: AI security platform · Read 27 Sep 2026
Network or SSE proxyDiffers	DescribedProxy integrations for AI usage control; the page says it works with Palo Alto Networks or CrowdStrike. Source: Lasso Security: AI usage control · Read 27 Sep 2026	Not in our sourcesNot described on the pages we read.
AI or MCP gateway	DescribedAn open-source MCP gateway that discovers MCP servers across Claude, Cursor and Windsurf and can block, alert or sanitize. Source: Lasso Security: MCP security · Read 27 Sep 2026	DescribedGateways and APIs inspect traffic inline. Source: Onyx Security: AI security platform · Read 27 Sep 2026
Names the coding agents it coversDiffers	MatchesClaude Code lifecycle hooks, and MCP discovery across Claude, Cursor and Windsurf. Source: Lasso Security: AI coding assistants · 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 runs	MatchesInspects every Claude Code tool call before it is executed. Source: Lasso Security: AI coding assistants · 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 AI	MatchesUsage control through a browser extension. Source: Lasso Security: AI usage control · Read 27 Sep 2026	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	PartlyClaude Code hooks are set through the enterprise management platform; the other components are a browser extension, a proxy and a gateway. Source: Lasso Security: AI coding assistants · Read 27 Sep 2026	Not in our sources
Can warn or ask instead of only blockingDiffers	PartlyAlert is an action; asking the user is not described. Source: Lasso Security: MCP security · Read 27 Sep 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	MatchesBlock, alert or sanitize on MCP traffic. Source: Lasso Security: MCP security · 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 mode	PartlyAlert without blocking. Source: Lasso Security: MCP security · Read 27 Sep 2026	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	PartlyAudit-ready reports. Source: Lasso Security: AI usage control · 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	MatchesDiscovery and AI-BOM, posture management, red teaming and runtime enforcement for AI apps. Source: Lasso 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	PartlyAWS Marketplace lists Lasso for Employees with an annual commit for GenAI chatbots at $20,000 for 12 months (marketplace list price); prices for its other products are not listed there. Source: AWS Marketplace: Lasso for Employees · Read 11 Oct 2026	Not in our sources
Built into	None	None
Works with	The usage control page says it works with Palo Alto Networks. The usage control page says it works with CrowdStrike. Offers proxy integrations for AI usage control. Source: Lasso Security: AI usage control · Read 27 Sep 2026	Lists CrowdStrike among its integrations. Source: Onyx Security: AI security platform · Read 27 Sep 2026
Price	Marketplace list price: Lasso for Employees, annual commit for GenAI chatbots, $20,000 for 12 months on AWS Marketplace. Other products: not published. Source: AWS Marketplace: Lasso for Employees · Read 11 Oct 2026	Not published. Source: Onyx Security homepage · Read 27 Sep 2026

Where do they differ?

On-device control: Lasso partly describes it; Onyx describes it.
Network or SSE proxy: Lasso describes it; Onyx is not in our sources.
Names the coding agents it covers: Lasso matches; Onyx partly matches.
Rolls out through EDR or device management you run: Lasso partly matches; Onyx is not in our sources.
Can warn or ask instead of only blocking: Lasso partly matches; Onyx matches.
Has a public price or tiers (vendor site or marketplace): Lasso partly matches; Onyx is not in our sources.

Choose Lasso if

You want controls in several places at once: browser, proxy, MCP gateway and coding agent hooks
You prefer an open-source MCP gateway you can inspect

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?

Lasso

Several components to deploy and run.
Asking the user before an action is not described, and the only public price covers its chatbot product on AWS Marketplace.

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.

Line up Lasso and Onyx with others Run the finder