PRODUCT NOTES · ONYX SECURITY
Onyx Security: AI endpoint control facts (2026)
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 Onyx's controls sit?
- 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)
| Type | Status | What the pages say | Source |
|---|---|---|---|
| On-device control | Described | Endpoint agents cover coding assistants and desktop AI agents. | Source: Onyx Security: AI security platform · Read 27 Sep 2026 |
| Browser extension | Described | Browser extensions cover browser AI. | Source: Onyx Security: AI security platform · Read 27 Sep 2026 |
| Network or SSE proxy | Not in our sources | Not described on the pages we read. | None |
| AI or MCP gateway | Described | Gateways and APIs inspect traffic inline. | Source: Onyx Security: AI security platform · Read 27 Sep 2026 |
| Policy only | No product needed | Policy is your own work whichever product you choose. | None |
How does Onyx decide on an AI action?
| Decides on a tool call before it runs | MatchesInspects every prompt, tool call and model response inline. Source: Onyx Security: AI security platform · Read 27 Sep 2026 |
|---|---|
| Can warn or ask instead of only blocking | 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 is one of five actions. Source: Onyx Security: AI security platform · Read 27 Sep 2026 |
| Has a watch-only or simulation mode | PartlyAlert is one of five actions; a simulation mode is not described. Source: Onyx Security: AI security platform · Read 27 Sep 2026 |
How does Onyx reach devices, and which AI tools does it name?
| How it reaches devices | Endpoint agents, browser extensions, APIs and gateways. Source: Onyx Security: AI security platform · Read 27 Sep 2026 |
|---|---|
| Rolls out through EDR or device management you run | Not in our sources |
| Names the coding agents it covers | PartlyCovers coding assistants; specific tools are not named on the pages we read. Source: Onyx Security: AI security platform · Read 27 Sep 2026 |
| AI tools and surfaces named | Browser AI, coding assistants, desktop AI agents, cloud workloads and MCP servers. Source: Onyx Security: AI security platform · Read 27 Sep 2026 |
| Built into | None |
| Works with | Lists CrowdStrike among its integrations. Source: Onyx Security: AI security platform · Read 27 Sep 2026 |
What else does Onyx cover?
| Controls what goes into browser AI | MatchesCan mask data in browser AI as well as block it. Source: Onyx Security: AI security platform · Read 27 Sep 2026 |
|---|---|
| Records who or what took each action | 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 | MatchesCloud workloads and MCP servers as well as devices. Source: Onyx Security: AI security platform · Read 27 Sep 2026 |
What does Onyx cost?
Not published.
Source: Onyx Security homepage · Read 27 Sep 2026
Where is Onyx strong, and where are its limits?
Strengths and limits come from the product's own pages and our sources; a limit can be something we did not find.
Strengths
- Five actions, including mask, steer and ask, not only block.
- One product across browser AI, coding assistants, desktop agents, cloud workloads and MCP servers.
- Integrations with Okta, Entra, Splunk and CrowdStrike.
Limits
- 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.
What does Onyx say about itself?
What has Onyx announced recently?
- 29 Jul 2026
Announced a $113M Series B led by Bessemer Venture Partners.
Source: Onyx Security blog: $113M Series B · Read 27 Sep 2026
- 12 Mar 2026
Came out of stealth, citing $40 million in funding from Conviction Partners and Cyberstarts.
Source: Onyx Security blog: introducing Onyx Security · Read 27 Sep 2026
Who should shortlist Onyx?
Consider Onyx if you want masking or steering rather than only allow or block, or if AI use spans the browser, desktop apps, coding tools and cloud workloads.
In our example finder profiles, Onyx is in the first group for: Browser AI and coding agents on managed devices, coaching first and Unmanaged devices, not sure what is in use.
How does Onyx compare with each other product?
- AI Access Security and Onyx
- Workforce Protector and Onyx
- Bay and Onyx
- Bloom and Onyx
- Cloudflare AI Gateway and Onyx
- Falcon Guardian and Onyx
- Ent and Onyx
- Glow and Onyx
- Harmonic and Onyx
- Koi and Onyx
- Lasso and Onyx
- Neo and Onyx
- Noma and Onyx
- Onyx and Pluto
- Onyx and Prompt Security
- Onyx and Sun
- Onyx and Zenity
- Onyx and Zscaler