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

[OpenTAXII](https://cybersectools.com/tools/opentaxii) is a free [threat intel platforms](https://cybersectools.com/categories/tip) solution. [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

| | OpenTAXII | SecurityTrails API |
|---|---|---|
| Pricing model | Free | Commercial |
| Category | Threat Intel Platforms | Threat Intel Platforms |
| Verified | No | No |
| Deployment type | On-Premises | Cloud |
| Company size fit | SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| GitHub stars | 211 | – |
| Last commit | Jan 2026 | – |
| Company | – | Recorded Future |
| Headquarters | – | – |

### Use cases and capabilities

| | OpenTAXII | SecurityTrails API |
|---|---|---|
| TAXII | Yes | – |
| DNS Security | – | Yes |
| IP Lookup | – | Yes |
| Reconnaissance | – | Yes |
| Subdomain Enumeration | – | Yes |
| Cyber Threat Intelligence | – | Yes |
| Investigation | – | Yes |
| REST API | – | Yes |
| Attack Paths | – | Yes |

### Core features

**OpenTAXII**

No features listed.

**SecurityTrails API**

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

## Which one fits you

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

- [OpenTAXII](https://cybersectools.com/tools/opentaxii) fits if you need to run it on your own servers, you need a free product and you want an open-source product.
- [SecurityTrails API](https://cybersectools.com/tools/securitytrails) fits if you want a cloud product.

## OpenTAXII vs SecurityTrails API FAQ

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

### What is the difference between OpenTAXII and SecurityTrails API?

**OpenTAXII**: A robust Python implementation of TAXII Services with a friendly pythonic API.

**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 OpenTAXII and SecurityTrails API?

**OpenTAXII** is open-source with 211 GitHub stars. **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 OpenTAXII a good alternative to SecurityTrails API?

Often, yes. OpenTAXII and SecurityTrails API are both Threat Intel Platforms products. Key differences: OpenTAXII is Free while SecurityTrails API is Commercial, OpenTAXII is open-source. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [OpenTAXII vs Validin](https://cybersectools.com/compare/opentaxii-vs-validin)
- [OpenTAXII vs Opsis OSINT](https://cybersectools.com/compare/opentaxii-vs-opsis-osint)
- [OpenTAXII vs Profundis](https://cybersectools.com/compare/opentaxii-vs-profundis)
- [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 Profundis](https://cybersectools.com/compare/profundis-vs-securitytrails)

## Alternatives to each

- [See all OpenTAXII alternatives](https://cybersectools.com/alternatives/opentaxii)
- [See all SecurityTrails API alternatives](https://cybersectools.com/alternatives/securitytrails)

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Source: https://cybersectools.com/compare/opentaxii-vs-securitytrails

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More on OpenTAXII 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