# GreyNoise Block vs SecurityTrails API: side-by-side comparison (2026)

[GreyNoise Block](https://cybersectools.com/tools/greynoise-block) is a commercial [threat intel platforms](https://cybersectools.com/categories/tip) solution by [GreyNoise, Inc](https://cybersectools.com/companies/greynoise-inc). [SecurityTrails API](https://cybersectools.com/tools/securitytrails) is a commercial [threat intel platforms](https://cybersectools.com/categories/tip) solution by [Recorded Future](https://cybersectools.com/companies/recorded-future). Features, integrations, deployment and the company behind each one, side by side.

Need the answer fast? [Best Threat Intelligence Platform Solutions for Business](https://cybersectools.com/shortlists/best-threat-intelligence-platforms) picks Recorded Future Threat Intelligence, Google Threat Intelligence, CrowdStrike Falcon Adversary Intelligence and 4 more.

## Side-by-side comparison

| | GreyNoise Block | SecurityTrails API |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | Threat Intel Platforms | Threat Intel Platforms |
| Verified | No | No |
| Deployment type | Cloud | Cloud |
| Company size fit | SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| Company | GreyNoise, Inc. | Recorded Future |
| Headquarters | – | – |

### Use cases and capabilities

| | GreyNoise Block | SecurityTrails API |
|---|---|---|
| Attack Detection | Yes | – |
| IP Lookup | Yes | Yes |
| Vulnerability Exploitation | Yes | – |
| Cyber Threat Intelligence | Yes | Yes |
| DNS Security | – | Yes |
| Reconnaissance | – | Yes |
| Subdomain Enumeration | – | Yes |
| Investigation | – | Yes |
| REST API | – | Yes |
| Attack Paths | – | Yes |

### Core features

**GreyNoise Block**

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

**SecurityTrails API**

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

### Integrations

**GreyNoise Block**

2 integrations listed. Sign in on the page to see them.

**SecurityTrails API**

No integrations listed.

## GreyNoise Block vs SecurityTrails API FAQ

Common questions when comparing GreyNoise Block vs SecurityTrails API for threat intel platforms.

### What is the difference between GreyNoise Block and SecurityTrails API?

**GreyNoise Block**: Real-time threat intel platform detecting malicious scanning & exploitation. Built by GreyNoise, Inc.

**SecurityTrails API**: API platform providing historical DNS, WHOIS, and IP data for security research. Built by Recorded Future.

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

### Who makes GreyNoise Block and SecurityTrails API?

**GreyNoise Block** is made by GreyNoise, Inc. **SecurityTrails API** is made by Recorded Future. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is GreyNoise Block a good alternative to SecurityTrails API?

Often, yes. GreyNoise Block and SecurityTrails API are both Threat Intel Platforms products, and both cover IP Lookup, Cyber Threat Intelligence. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [GreyNoise Block vs Validin](https://cybersectools.com/compare/greynoise-block-vs-validin)
- [GreyNoise Block vs Opsis OSINT](https://cybersectools.com/compare/greynoise-block-vs-opsis-osint)
- [GreyNoise Block vs Nucleon Cyber AGTI Platform](https://cybersectools.com/compare/greynoise-block-vs-nucleon-cyber-agti-platform)
- [SecurityTrails API vs Validin](https://cybersectools.com/compare/securitytrails-vs-validin)
- [SecurityTrails API vs Opsis OSINT](https://cybersectools.com/compare/opsis-osint-vs-securitytrails)
- [SecurityTrails API vs Nucleon Cyber AGTI Platform](https://cybersectools.com/compare/nucleon-cyber-agti-platform-vs-securitytrails)

## Alternatives to each

- [See all GreyNoise Block alternatives](https://cybersectools.com/alternatives/greynoise-block)
- [See all SecurityTrails API alternatives](https://cybersectools.com/alternatives/securitytrails)

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Source: https://cybersectools.com/compare/greynoise-block-vs-securitytrails

For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/greynoise-block.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md.

More on GreyNoise Block and SecurityTrails API: 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