# Data Theorem API Security vs express-brute: side-by-side comparison (2026)

[Data Theorem API Security](https://cybersectools.com/tools/data-theorem-api-security) is a commercial [API security](https://cybersectools.com/categories/api-security) solution by [Data Theorem](https://cybersectools.com/companies/data-theorem). [express-brute](https://cybersectools.com/tools/express-brute) is a free [API security](https://cybersectools.com/categories/api-security) solution. Features, integrations, deployment and the company behind each one, side by side.

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## Side-by-side comparison

| | Data Theorem API Security | express-brute |
|---|---|---|
| Pricing model | Commercial | Free |
| Category | API Security | API Security |
| Verified | No | No |
| Deployment type | Hybrid | On-Premises |
| Company size fit | SMB, Mid-Market, Enterprise | Startup, SMB, Mid-Market, Enterprise |
| GitHub stars | – | 568 |
| Last commit | – | Mar 2020 |
| Company | Data Theorem | – |
| Headquarters | – | – |

### Use cases and capabilities

| | Data Theorem API Security | express-brute |
|---|---|---|
| Bot Protection | Yes | – |
| DAST | Yes | – |
| Brute Force | – | Yes |

### Core features

**Data Theorem API Security**

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

**express-brute**

No features listed.

### Integrations

**Data Theorem API Security**

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

**express-brute**

No integrations listed.

## Which one fits you

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

- [Data Theorem API Security](https://cybersectools.com/tools/data-theorem-api-security) fits if you need both cloud and on-premises options.
- [express-brute](https://cybersectools.com/tools/express-brute) fits if you need to run it on your own servers, you are a startup, you need a free product and you want an open-source product.

## Data Theorem API Security vs express-brute FAQ

Common questions when comparing Data Theorem API Security vs express-brute for API security.

### What is the difference between Data Theorem API Security and express-brute?

**Data Theorem API Security**: API security platform for discovery, testing, and runtime protection. Built by Data Theorem.

**express-brute**: A brute-force protection middleware for express routes that rate-limits incoming requests.

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

### Who makes Data Theorem API Security and express-brute?

**Data Theorem API Security** is made by Data Theorem. **express-brute** is open-source with 568 GitHub stars. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Data Theorem API Security a good alternative to express-brute?

Often, yes. Data Theorem API Security and express-brute are both API Security products. Key differences: Data Theorem API Security is Commercial while express-brute is Free, express-brute is open-source. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Data Theorem API Security vs Indusface AppTrana - API Protection](https://cybersectools.com/compare/data-theorem-api-security-vs-indusface-apptrana-api-protection)
- [Data Theorem API Security vs Ammune API Discovery](https://cybersectools.com/compare/ammune-api-discovery-vs-data-theorem-api-security)
- [Data Theorem API Security vs Prophaze API Security](https://cybersectools.com/compare/data-theorem-api-security-vs-prophaze-api-security)
- [express-brute vs Indusface AppTrana - API Protection](https://cybersectools.com/compare/express-brute-vs-indusface-apptrana-api-protection)
- [express-brute vs Ammune API Discovery](https://cybersectools.com/compare/ammune-api-discovery-vs-express-brute)
- [express-brute vs Prophaze API Security](https://cybersectools.com/compare/express-brute-vs-prophaze-api-security)

## Alternatives to each

- [See all Data Theorem API Security alternatives](https://cybersectools.com/alternatives/data-theorem-api-security)
- [See all express-brute alternatives](https://cybersectools.com/alternatives/express-brute)

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Source: https://cybersectools.com/compare/data-theorem-api-security-vs-express-brute

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

More on Data Theorem API Security and express-brute: 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