HEAD-TO-HEAD · FACTS ONLY
Falcon Guardian vs Onyx: AI endpoint control facts side by side
Short answer
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: Falcon Guardian
- 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)
What are the facts, side by side?
| Fact | Falcon Guardian | Onyx |
|---|---|---|
| Owner | None | None |
| Positioning | CrowdStrike's AI agent security product, described on 1 September 2026 as the evolution of Falcon AI Detection and Response (AIDR). It discovers shadow AI agents, connects agent activity to endpoint telemetry, governs which AI agents may run, protects prompts and sensitive data, and stops threats at runtime with containment, from endpoint to cloud and SaaS. | "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 | Through the Falcon sensor on supported Windows, macOS and Linux endpoints; Claude Code coverage is a JSON block in the Claude Code settings file with no agent to install, assigned through Falcon host groups. Source: CrowdStrike blog: Copilot Studio agents and Claude Code, 30 July 2026 · Read 13 Oct 2026 | Endpoint agents, browser extensions, APIs and gateways. Source: Onyx Security: AI security platform · Read 27 Sep 2026 |
| On-device control | DescribedDiscovers AI agents on supported endpoints and ties prompts, skills, tool calls, MCP servers and identity to what runs next; defines which agent types may run. Source: CrowdStrike blog: Falcon Guardian, 1 September 2026 · Read 13 Oct 2026 | DescribedEndpoint agents cover coding assistants and desktop AI agents. Source: Onyx Security: AI security platform · Read 27 Sep 2026 |
| Browser extensionDiffers | Partly described(secondary: SACR) delivered also through browser extensions. Source: SACR (secondary): CISO guide to endpoint control and prevention, July 2026 · Read 13 Oct 2026 · secondary source | 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 | Partly describedThe AI gateway is listed as coming soon; SACR (secondary) also lists an MCP proxy. Source: CrowdStrike: Falcon Guardian (formerly AIDR) · Read 13 Oct 2026 | DescribedGateways and APIs inspect traffic inline. Source: Onyx Security: AI security platform · Read 27 Sep 2026 |
| Names the coding agents it covers | PartlyNames Claude Code and Copilot Studio agents; Cursor, Codex and GitHub Copilot are not named on the pages we read. Source: CrowdStrike blog: Copilot Studio agents and Claude Code, 30 July 2026 · Read 13 Oct 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 | MatchesChecks and blocks Claude Code prompts and tool activity as they happen, and returns allow or block before a Copilot Studio agent runs a tool. Source: CrowdStrike blog: Copilot Studio agents and Claude Code, 30 July 2026 · Read 13 Oct 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 the Falcon sensor, if you run CrowdStrike Falcon. Source: CrowdStrike blog: Falcon Guardian, 1 September 2026 · Read 13 Oct 2026 | Not in our sources |
| Can warn or ask instead of only blockingDiffers | Not in our sources | 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 | MatchesAutomatic containment by blocking malicious agent behaviors. Source: CrowdStrike blog: Falcon Guardian, 1 September 2026 · Read 13 Oct 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 actionDiffers | MatchesClaude Code events tied to a session and user in Falcon Next-Gen SIEM. Source: CrowdStrike blog: Copilot Studio agents and Claude Code, 30 July 2026 · Read 13 Oct 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 agents from endpoint to cloud and SaaS, including Copilot Studio. Source: CrowdStrike: Falcon Guardian (formerly AIDR) · Read 13 Oct 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) | Not in our sources | Not in our sources |
| Built into | Part of the CrowdStrike Falcon platform. Source: CrowdStrike: Falcon Guardian (formerly AIDR) · Read 13 Oct 2026 | None |
| Works with | None in our sources | Lists CrowdStrike among its integrations. Source: Onyx Security: AI security platform · Read 27 Sep 2026 |
| Price | Not published. CrowdStrike's pricing page lists Falcon Go, Pro and Enterprise bundles, none of which include Falcon Guardian. Source: CrowdStrike: pricing · Read 13 Oct 2026 | Not published. Source: Onyx Security homepage · Read 27 Sep 2026 |
Where do they differ?
- Browser extension: Falcon Guardian partly describes it; Onyx describes it.
- AI or MCP gateway: Falcon Guardian partly describes it; Onyx describes it.
- Controls what goes into browser AI: Falcon Guardian is not in our sources; Onyx matches.
- Rolls out through EDR or device management you run: Falcon Guardian matches; Onyx is not in our sources.
- Can warn or ask instead of only blocking: Falcon Guardian is not in our sources; Onyx matches.
- Has a watch-only or simulation mode: Falcon Guardian is not in our sources; Onyx partly matches.
- Records who or what took each action: Falcon Guardian matches; Onyx partly matches.
Choose Falcon Guardian if
- You already run CrowdStrike Falcon and want AI agent controls in the same console
- Your agents include Copilot Studio as well as Claude Code
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?
Falcon Guardian
- Needs CrowdStrike Falcon for the device path.
- Claude Code is the only coding agent named on the pages we read.
- The AI gateway is listed as coming soon, and no price is published.
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.