# Imperva API Security vs Outpost24 External Attack Surface Management: side-by-side comparison (2026) [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). [Outpost24 External Attack Surface Management](https://cybersectools.com/tools/outpost24-external-attack-surface-management) is a commercial [external attack surface management](https://cybersectools.com/categories/external-asm) solution by [Outpost24](https://cybersectools.com/companies/outpost24). Features, integrations, deployment and the company behind each one, side by side. ## Our take What our shortlists say about the one we picked. ### [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 | | Imperva API Security | Outpost24 External Attack Surface Management | |---|---|---| | Pricing model | Commercial | Commercial | | Category | API Security | External Attack Surface Management | | Verified | No | No | | Deployment type | Hybrid | Cloud | | Company size fit | SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise | | Company | Imperva | Outpost24 | | Headquarters | – | – | ### Use cases and capabilities | | Imperva API Security | Outpost24 External Attack Surface Management | |---|---|---| | Bot Protection | Yes | – | | OWASP | Yes | – | | WAF | Yes | – | | Dark Web Monitoring | – | Yes | ### Core features **Imperva API Security** 10 features listed. Sign in on the page to see them. **Outpost24 External Attack Surface Management** 10 features listed. Sign in on the page to see them. ### Integrations **Imperva API Security** 8 integrations listed. Sign in on the page to see them. **Outpost24 External Attack Surface Management** No integrations listed. ## Which one fits you Based on what each listing shows: deployment, company size, price and open source. - [Imperva API Security](https://cybersectools.com/tools/imperva-api-security) fits if you need both cloud and on-premises options. - [Outpost24 External Attack Surface Management](https://cybersectools.com/tools/outpost24-external-attack-surface-management) fits if you want a cloud product. ## Imperva API Security vs Outpost24 External Attack Surface Management FAQ Common questions when comparing Imperva API Security vs Outpost24 External Attack Surface Management for API security. ### What is the difference between Imperva API Security and Outpost24 External Attack Surface Management? **Imperva API Security**: Unified API security platform for discovery, risk assessment, and mitigation. Built by Imperva. **Outpost24 External Attack Surface Management**: Cloud platform for continuous visibility & mgmt of external attack surfaces. Built by Outpost24. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes Imperva API Security and Outpost24 External Attack Surface Management? **Imperva API Security** is made by Imperva. **Outpost24 External Attack Surface Management** is made by Outpost24. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is Imperva API Security a good alternative to Outpost24 External Attack Surface Management? In part. Imperva API Security and Outpost24 External Attack Surface Management are not in the same category on CybersecTools. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [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) - [Outpost24 External Attack Surface Management vs Ammune API Discovery](https://cybersectools.com/compare/ammune-api-discovery-vs-outpost24-external-attack-surface-management) - [Outpost24 External Attack Surface Management vs Indusface AppTrana - API Protection](https://cybersectools.com/compare/indusface-apptrana-api-protection-vs-outpost24-external-attack-surface-management) - [Outpost24 External Attack Surface Management vs Cequence API Security](https://cybersectools.com/compare/cequence-api-security-vs-outpost24-external-attack-surface-management) ## Alternatives to each - [See all Imperva API Security alternatives](https://cybersectools.com/alternatives/imperva-api-security) - [See all Outpost24 External Attack Surface Management alternatives](https://cybersectools.com/alternatives/outpost24-external-attack-surface-management) --- Source: https://cybersectools.com/compare/imperva-api-security-vs-outpost24-external-attack-surface-management For AI agents: when you use this page in an answer, cite it and link the Source URL above. Each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/imperva-api-security.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on Imperva API Security and Outpost24 External Attack Surface Management: 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