# GREYCORTEX Mendel vs Mercury: side-by-side comparison (2026)

[GREYCORTEX Mendel](https://cybersectools.com/tools/greycortex-mendel) is a commercial [network detection and response](https://cybersectools.com/categories/ndr) solution by [GREYCORTEX](https://cybersectools.com/companies/greycortex). [Mercury](https://cybersectools.com/tools/mercury) is a free [network detection and response](https://cybersectools.com/categories/ndr) solution. Features, integrations, deployment and the company behind each one, side by side.

## Side-by-side comparison

| | GREYCORTEX Mendel | Mercury |
|---|---|---|
| Pricing model | Commercial | Free |
| Category | Network Detection and Response | Network Detection and Response |
| Verified | No | No |
| Deployment type | Hybrid | On-Premises |
| Company size fit | SMB, Mid-Market, Enterprise | Mid-Market, Enterprise |
| GitHub stars | – | 501 |
| Last commit | – | Mar 2026 |
| Company | GREYCORTEX | – |
| Headquarters | – | – |

### Use cases and capabilities

| | GREYCORTEX Mendel | Mercury |
|---|---|---|
| NDR | Yes | – |
| Network Monitoring | Yes | – |
| Anomaly Detection | Yes | – |
| IoT Security | Yes | – |
| SCADA | Yes | – |
| Flow Analysis | Yes | – |
| PCAP | Yes | Yes |
| Network Visibility | Yes | – |
| Critical Infrastructure | Yes | – |
| Threat Analysis | Yes | – |
| Packet Capture | – | Yes |

### Core features

**GREYCORTEX Mendel**

7 features listed. Sign in on the page to see them.

**Mercury**

No features listed.

## Which one fits you

Based on what each listing shows: deployment, company size, price and open source.

- [GREYCORTEX Mendel](https://cybersectools.com/tools/greycortex-mendel) fits if you need both cloud and on-premises options and you are a small business.
- [Mercury](https://cybersectools.com/tools/mercury) fits if you need to run it on your own servers, you need a free product and you want an open-source product.

## GREYCORTEX Mendel vs Mercury FAQ

Common questions when comparing GREYCORTEX Mendel vs Mercury for network detection and response.

### What is the difference between GREYCORTEX Mendel and Mercury?

**GREYCORTEX Mendel**: Network detection and response platform for IT, IoT, and OT threat monitoring. Built by GREYCORTEX.

**Mercury**: Network metadata capture and analysis tool.

The table above shows where their features, integrations, deployment and company size fit differ.

### Who makes GREYCORTEX Mendel and Mercury?

**GREYCORTEX Mendel** is made by GREYCORTEX. **Mercury** is open-source with 501 GitHub stars. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is GREYCORTEX Mendel a good alternative to Mercury?

Often, yes. GREYCORTEX Mendel and Mercury are both Network Detection and Response products, and both cover PCAP. Key differences: GREYCORTEX Mendel is Commercial while Mercury is Free, Mercury is open-source. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [GREYCORTEX Mendel vs Port0 Network Security](https://cybersectools.com/compare/greycortex-mendel-vs-port0-network-security)
- [GREYCORTEX Mendel vs Hypergraph AI](https://cybersectools.com/compare/greycortex-mendel-vs-hypergraph-ai)
- [GREYCORTEX Mendel vs Hyprfire Firebug](https://cybersectools.com/compare/greycortex-mendel-vs-hyprfire-firebug)
- [Mercury vs Port0 Network Security](https://cybersectools.com/compare/mercury-vs-port0-network-security)
- [Mercury vs Hypergraph AI](https://cybersectools.com/compare/hypergraph-ai-vs-mercury)
- [Mercury vs Hyprfire Firebug](https://cybersectools.com/compare/hyprfire-firebug-vs-mercury)

## Alternatives to each

- [See all GREYCORTEX Mendel alternatives](https://cybersectools.com/alternatives/greycortex-mendel)
- [See all Mercury alternatives](https://cybersectools.com/alternatives/mercury)

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Source: https://cybersectools.com/compare/greycortex-mendel-vs-mercury

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More on GREYCORTEX Mendel and Mercury: funding, momentum, hiring and news, plus the full product and company record, are available through the Mandos MCP Server (paid plans), which connects to AI assistants: https://mandos.io/mcp?utm_source=cybersectools.com&utm_medium=compare-md