# SurfaceDiff vs Wallarm API Attack Surface Management: side-by-side comparison (2026) [SurfaceDiff](https://cybersectools.com/tools/surfacediff) is a commercial [external attack surface management](https://cybersectools.com/categories/external-asm) solution by [SurfaceDiff](https://cybersectools.com/companies/surfacediff). [Wallarm API Attack Surface Management](https://cybersectools.com/tools/wallarm-api-attack-surface-management) is a commercial [external attack surface management](https://cybersectools.com/categories/external-asm) solution by [Wallarm](https://cybersectools.com/companies/wallarm). Features, integrations, deployment and the company behind each one, side by side. Need the answer fast? [Best Attack Surface Management Solutions for Business](https://cybersectools.com/shortlists/best-attack-surface-solutions) picks Palo Alto Networks Cortex Xpanse, Microsoft Defender EASM, Mandiant Attack Surface Management and 4 more. ## Side-by-side comparison | | SurfaceDiff | Wallarm API Attack Surface Management | |---|---|---| | Pricing model | Commercial | Commercial | | Category | External Attack Surface Management | External Attack Surface Management | | Verified | No | No | | Deployment type | Cloud | Cloud | | Company size fit | Startup, SMB, Mid-Market, Enterprise | SMB, Mid-Market, Enterprise | | Company | SurfaceDiff | Wallarm | | Headquarters | – | – | ### Use cases and capabilities | | SurfaceDiff | Wallarm API Attack Surface Management | |---|---|---| | DNS Security | Yes | – | | Port Scanning | Yes | – | | TLS | Yes | – | | Subdomain Enumeration | Yes | – | | Network Scanning | Yes | – | | Security Scanning | Yes | – | | Alerting | Yes | – | | Reconnaissance | Yes | – | | Visibility | Yes | – | | Web Security | Yes | – | | CVE | – | Yes | | Secret Detection | – | Yes | | WAF | – | Yes | ### Core features **SurfaceDiff** 9 features listed. Sign in on the page to see them. **Wallarm API Attack Surface Management** 10 features listed. Sign in on the page to see them. ### Integrations **SurfaceDiff** No integrations listed. **Wallarm API Attack Surface Management** 18 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. - [SurfaceDiff](https://cybersectools.com/tools/surfacediff) fits if you are a startup. ## SurfaceDiff vs Wallarm API Attack Surface Management FAQ Common questions when comparing SurfaceDiff vs Wallarm API Attack Surface Management for external attack surface management. ### What is the difference between SurfaceDiff and Wallarm API Attack Surface Management? **SurfaceDiff**: Continuous external attack surface monitoring that shows what changed between scans, built by SurfaceDiff. **Wallarm API Attack Surface Management**: Agentless API attack surface discovery and vulnerability detection platform, built by Wallarm. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes SurfaceDiff and Wallarm API Attack Surface Management? **SurfaceDiff** is made by SurfaceDiff. **Wallarm API Attack Surface Management** is made by Wallarm. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is SurfaceDiff a good alternative to Wallarm API Attack Surface Management? Often, yes. SurfaceDiff and Wallarm API Attack Surface Management are both External Attack Surface Management products. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [SurfaceDiff vs DDactic Attack Surface Discovery](https://cybersectools.com/compare/ddactic-attack-surface-discovery-vs-surfacediff) - [SurfaceDiff vs Attack Surface Scan](https://cybersectools.com/compare/attack-surface-scan-vs-surfacediff) - [SurfaceDiff vs Trickest ASM - Attack Surface Management](https://cybersectools.com/compare/surfacediff-vs-trickest-asm-attack-surface-management) - [Wallarm API Attack Surface Management vs DDactic Attack Surface Discovery](https://cybersectools.com/compare/ddactic-attack-surface-discovery-vs-wallarm-api-attack-surface-management) - [Wallarm API Attack Surface Management vs Attack Surface Scan](https://cybersectools.com/compare/attack-surface-scan-vs-wallarm-api-attack-surface-management) - [Wallarm API Attack Surface Management vs Trickest ASM - Attack Surface Management](https://cybersectools.com/compare/trickest-asm-attack-surface-management-vs-wallarm-api-attack-surface-management) ## Alternatives to each - [See all SurfaceDiff alternatives](https://cybersectools.com/alternatives/surfacediff) - [See all Wallarm API Attack Surface Management alternatives](https://cybersectools.com/alternatives/wallarm-api-attack-surface-management) --- Source: https://cybersectools.com/compare/surfacediff-vs-wallarm-api-attack-surface-management For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/surfacediff.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on SurfaceDiff and Wallarm API 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