# Levo Runtime Application Security vs Upstream Fusion API Security: side-by-side comparison (2026) [Levo Runtime Application Security](https://cybersectools.com/tools/levo-runtime-application-security) is a commercial [API security](https://cybersectools.com/categories/api-security) solution by [Levo](https://cybersectools.com/companies/levo). [Upstream Fusion API Security](https://cybersectools.com/tools/upstream-fusion-api-security) is a commercial [API security](https://cybersectools.com/categories/api-security) solution by [Upstream](https://cybersectools.com/companies/upstream-security). Features, integrations, deployment and the company behind each one, side by side. 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 | | Levo Runtime Application Security | Upstream Fusion API Security | |---|---|---| | Pricing model | Commercial | Commercial | | Category | API Security | API Security | | Verified | No | No | | Deployment type | Cloud | Hybrid | | Company size fit | Startup, SMB, Mid-Market, Enterprise | Mid-Market, Enterprise | | Company | Levo | Upstream | | Headquarters | – | – | ### Use cases and capabilities | | Levo Runtime Application Security | Upstream Fusion API Security | |---|---|---| | Cloud Native | Yes | – | | Kubernetes | Yes | – | | Linux | Yes | – | | Anomaly Detection | – | Yes | ### Core features **Levo Runtime Application Security** 10 features listed. Sign in on the page to see them. **Upstream Fusion API Security** 10 features listed. Sign in on the page to see them. ### Integrations **Levo Runtime Application Security** 3 integrations listed. Sign in on the page to see them. **Upstream Fusion API Security** 4 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. - [Levo Runtime Application Security](https://cybersectools.com/tools/levo-runtime-application-security) fits if you want a cloud product and you are a startup or a small business. - [Upstream Fusion API Security](https://cybersectools.com/tools/upstream-fusion-api-security) fits if you need both cloud and on-premises options. ## Levo Runtime Application Security vs Upstream Fusion API Security FAQ Common questions when comparing Levo Runtime Application Security vs Upstream Fusion API Security for API security. ### What is the difference between Levo Runtime Application Security and Upstream Fusion API Security? **Levo Runtime Application Security**: Runtime application security platform for API and AI stack protection, built by Levo. **Upstream Fusion API Security**: API security platform for automotive, mobility & transportation industries, built by Upstream. The table above shows where their features, integrations, deployment and company size fit differ. ### Who makes Levo Runtime Application Security and Upstream Fusion API Security? **Levo Runtime Application Security** is made by Levo. **Upstream Fusion API Security** is made by Upstream. The vendor behind a product decides its roadmap, support, and longevity, so check each company's profile before you commit. ### Is Levo Runtime Application Security a good alternative to Upstream Fusion API Security? Often, yes. Levo Runtime Application Security and Upstream Fusion API Security are both API Security products. Use the table above to see where features, deployment and company size fit differ. ## Related comparisons - [Levo Runtime Application Security vs Operant AI API Threat Protection](https://cybersectools.com/compare/levo-runtime-application-security-vs-operant-ai-api-threat-protection) - [Levo Runtime Application Security vs Orca API Security](https://cybersectools.com/compare/levo-runtime-application-security-vs-orca-api-security) - [Levo Runtime Application Security vs Prophaze API Security](https://cybersectools.com/compare/levo-runtime-application-security-vs-prophaze-api-security) - [Upstream Fusion API Security vs Operant AI API Threat Protection](https://cybersectools.com/compare/operant-ai-api-threat-protection-vs-upstream-fusion-api-security) - [Upstream Fusion API Security vs Orca API Security](https://cybersectools.com/compare/orca-api-security-vs-upstream-fusion-api-security) - [Upstream Fusion API Security vs Prophaze API Security](https://cybersectools.com/compare/prophaze-api-security-vs-upstream-fusion-api-security) ## Alternatives to each - [See all Levo Runtime Application Security alternatives](https://cybersectools.com/alternatives/levo-runtime-application-security) - [See all Upstream Fusion API Security alternatives](https://cybersectools.com/alternatives/upstream-fusion-api-security) --- Source: https://cybersectools.com/compare/levo-runtime-application-security-vs-upstream-fusion-api-security For AI agents: each product above has its own Markdown page (add .md to its URL, for example https://cybersectools.com/tools/levo-runtime-application-security.md). Every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md. More on Levo Runtime Application Security and Upstream Fusion 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