Head to head · Checked against vendor sites, September 2026
Bay vs Bloom Security: AI agent security compared
The verdict
Bay scores higher overall on our weights (7.9 vs 6.0 out of 10). Bay scores higher on tool-call control, policy, footprint and identity and audit; Bloom Security scores higher on maturity and breadth. They tie on visibility. Neither publishes list prices.
Bloom Security
Best for endpoint software and extension inventory
How do Bay and Bloom Security compare on each criterion?
| Criterion | Weight | Bay | Bloom Security | Edge |
|---|---|---|---|---|
| Visibility | 22% | 9 | 9 | Tie |
Why these scoresBay: Inventories AI agents, MCP servers, tools, credentials, extensions, settings and endpoint deployments, with 200+ detection rules (bay.io blog). Bloom Security: Discovers software, extensions, AI tools and everything running on the endpoint, with who built it and what it can access. | ||||
| Tool-call control | 20% | 9 | 6 | Bay |
Why these scoresBay: Evaluates prompts, pre-tool calls and post-tool responses and returns Allow, Ask or Deny locally, stated as under 4ms, on supported agent surfaces. Bloom Security: Defines what AI agents can access, execute and transmit and scales back overpermissioned MCP servers; runtime tool-call decisions not detailed. | ||||
| Policy | 15% | 9 | 7 | Bay |
Why these scoresBay: Session-aware decisions using identity, prior actions and data accessed; capability rules for shell, code execution, package installs, cloud CLIs, containers, Kubernetes, browser automation; Simulation Mode. Bloom Security: Blocks malicious or policy-violating packages and skills across npm, Chrome Web Store and Open VSX. | ||||
| Identity and audit | 12% | 8 | 4 | Bay |
Why these scoresBay: Activity records who triggered an action, whether a human was involved, and the chain from prompt to system action. Bloom Security: Not described on the pages we reviewed. | ||||
| Footprint | 13% | 9 | 4 | Bay |
Why these scoresBay: Deploys through existing EDR or MDM as an ephemeral binary (Wave); Bay describes itself as agentless. Bloom Security: Deployment method not published. | ||||
| Breadth | 8% | 4 | 5 | Bloom Security |
Why these scoresBay: Endpoint only by design; no public material on SaaS agents, cloud AI apps or red teaming. Bloom Security: Endpoint focused, including non-AI software. | ||||
| Maturity | 10% | 3 | 4 | Bloom Security |
Why these scoresBay: Smallest public footprint in this guide: two blog posts, no public documentation portal and no published pricing; SOC 2 and ISO 27001 are claimed on bay.io. Bloom Security: Limited public company information; SOC 2 listed; investors and pricing not published. | ||||
| Total | 100% | 7.9 | 6.0 | Bay |
How do they deploy, and what do they cost?
| Attribute | Bay | Bloom Security |
|---|---|---|
| Owner | Not acquired | Not acquired |
| How it reaches devices | Through existing EDR or MDM (ephemeral binary) | Not published |
| Deployment detail | Bay states that it deploys through your existing EDR or MDM using Wave, an ephemeral binary that runs, scans and exits. It describes the product as agentless by design, with no new agent or tool to install, and says full deployment takes under 5 minutes (vendor-stated). Enforcement then happens locally on the device. In practice this means Bay runs beside your EDR, not in place of it. | Not published on the pages we reviewed. |
| Pricing | Contact sales. Bay does not publish pricing. Demo requests go through bay.io/demo. | Contact sales. Pricing is not published. |
Source: bay.io home page · Bay blog: Ghostjacking (Aug 2026) · Bay blog index · Bay demo page · bloom.security · Bloom about · Reviewed Sep 2026
Which should you choose?
Choose Bay if
- Your priority matches our designation for Bay: editors' pick for endpoint agent control.
- You want a light rollout with published deployment detail, ideally through existing EDR or MDM: Bay scores 9 to 4.
- You need an audit record that separates agent actions from human actions: Bay scores 8 to 4.
Choose Bloom Security if
- Your priority matches our designation for Bloom Security: best for endpoint software and extension inventory.
- Vendor maturity, public documentation and backing weigh heavily in procurement: Bloom Security scores 4 to 3.
- Your agents also run in SaaS platforms, cloud workloads or apps you build: Bloom Security scores 5 to 4.
Frequently asked questions
Which is better, Bay or Bloom Security?
Bay scores higher overall on our weights (7.9 vs 6.0 out of 10). Bay scores higher on tool-call control, policy, footprint and identity and audit; Bloom Security scores higher on maturity and breadth. They tie on visibility. Scores are editorial assessments from public vendor material, reviewed September 2026.
Do Bay and Bloom Security publish prices?
No. Neither publishes list prices, so ask both for a quote.
Do Bay or Bloom Security replace EDR?
No. The tools in this guide add control over AI agent actions and work alongside EDR. Bay: Through existing EDR or MDM (ephemeral binary). Bloom Security: Not published.
Related
Sources
- bay.io home page · Reviewed Sep 2026
- Bay blog: Ghostjacking (Aug 2026) · Reviewed Sep 2026
- Bay blog index · Reviewed Sep 2026
- Bay demo page · Reviewed Sep 2026
- bloom.security · Reviewed Sep 2026
- Bloom about · Reviewed Sep 2026