# Fastly API Security vs Imperva API Security: side-by-side comparison (2026)

[Fastly API Security](https://cybersectools.com/tools/fastly-api-security) is a commercial [API security](https://cybersectools.com/categories/api-security) solution by [Fastly](https://cybersectools.com/companies/fastly). [Imperva API Security](https://cybersectools.com/tools/imperva-api-security) is a commercial [API security](https://cybersectools.com/categories/api-security) solution by [Imperva](https://cybersectools.com/companies/imperva). Features, integrations, deployment and the company behind each one, side by side.

## Our take

What our shortlists say about each one.

### [Fastly API Security](https://cybersectools.com/tools/fastly-api-security)

Best for: Fastly customers protecting APIs on the edge

It is on the list because discovery and blocking happen on the Fastly edge where your API traffic already flows, and it sends alerts to Slack, Jira, PagerDuty and Datadog. If your APIs are not behind Fastly, or most of your risk sits in internal and partner APIs, its edge view will see less of it, so weigh that first.

From [Best API Security Solutions for Business](https://cybersectools.com/shortlists/best-api-security-solutions), Fall 2026.

### [Imperva API Security](https://cybersectools.com/tools/imperva-api-security)

Best for: Imperva WAF customers adding API discovery

Imperva earns a spot because it catches one user reading another user's data as it happens and can block it inline through the WAF you may already run. It suits you best if that WAF is Imperva Cloud WAF or WAF Gateway, and its self-managed option helps on hybrid estates. Imperva is now part of Thales, so check the roadmap and support model after that move.

From [Best API Security Solutions for Business](https://cybersectools.com/shortlists/best-api-security-solutions), Fall 2026.

Reviewed by [Nika (Nikoloz) Kokhreidze](https://cybersectools.com/about).

Need the answer fast? [Best API Security Solutions for Business](https://cybersectools.com/shortlists/best-api-security-solutions) picks Akamai API Security, Salt Security Salt Collect, Cloudflare API Shield and 4 more.

## Side-by-side comparison

| | Fastly API Security | Imperva API Security |
|---|---|---|
| Pricing model | Commercial | Commercial |
| Category | API Security | API Security |
| Verified | No | No |
| Deployment type | Cloud | Hybrid |
| Company size fit | SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise |
| Company | Fastly | Imperva |
| Headquarters | – | – |

### Use cases and capabilities

| | Fastly API Security | Imperva API Security |
|---|---|---|
| Attack Detection | Yes | – |
| Bot Protection | Yes | Yes |
| WAF | Yes | Yes |
| OWASP | – | Yes |

### Core features

**Fastly API Security**

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

**Imperva API Security**

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

### Integrations

**Fastly API Security**

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

**Imperva API Security**

8 integrations 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.

- [Fastly API Security](https://cybersectools.com/tools/fastly-api-security) fits if you want a cloud product.
- [Imperva API Security](https://cybersectools.com/tools/imperva-api-security) fits if you need both cloud and on-premises options.

## Fastly API Security vs Imperva API Security FAQ

Common questions when comparing Fastly API Security vs Imperva API Security for API security.

### What is the difference between Fastly API Security and Imperva API Security?

**Fastly API Security**: API security platform for discovery, monitoring, and protection at edge, built by Fastly.

**Imperva API Security**: Unified API security platform for discovery, risk assessment, and mitigation, built by Imperva.

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

### Who makes Fastly API Security and Imperva API Security?

**Fastly API Security** is made by Fastly. **Imperva API Security** is made by Imperva. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit.

### Is Fastly API Security a good alternative to Imperva API Security?

Often, yes. Fastly API Security and Imperva API Security are both API Security products, and both cover Bot Protection, WAF. Use the table above to see where features, deployment and company size fit differ.

## Related comparisons

- [Fastly API Security vs Ammune API Discovery](https://cybersectools.com/compare/ammune-api-discovery-vs-fastly-api-security)
- [Fastly API Security vs Indusface AppTrana - API Protection](https://cybersectools.com/compare/fastly-api-security-vs-indusface-apptrana-api-protection)
- [Fastly API Security vs Cequence API Security](https://cybersectools.com/compare/cequence-api-security-vs-fastly-api-security)
- [Imperva API Security vs Ammune API Discovery](https://cybersectools.com/compare/ammune-api-discovery-vs-imperva-api-security)
- [Imperva API Security vs Indusface AppTrana - API Protection](https://cybersectools.com/compare/imperva-api-security-vs-indusface-apptrana-api-protection)
- [Imperva API Security vs Cequence API Security](https://cybersectools.com/compare/cequence-api-security-vs-imperva-api-security)

## Alternatives to each

- [See all Fastly API Security alternatives](https://cybersectools.com/alternatives/fastly-api-security)
- [See all Imperva API Security alternatives](https://cybersectools.com/alternatives/imperva-api-security)

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Source: https://cybersectools.com/compare/fastly-api-security-vs-imperva-api-security

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

More on Fastly API Security and Imperva API Security: 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