# Upstream Fusion API Security alternatives and competitors (2026) The closest Upstream Fusion API Security alternatives are [Akamai API Security](https://cybersectools.com/tools/akamai-api-security), [Imperva API Security](https://cybersectools.com/tools/imperva-api-security) and [Levo Runtime Application Security](https://cybersectools.com/tools/levo-runtime-application-security). Picking an Upstream Fusion API Security alternative comes down to fit: API Security coverage, your environment, your integrations and your budget. So each option below shows what it covers, how it deploys, its pricing model and the company behind it. 38 alternatives. Closest matches: Akamai API Security, Imperva API Security, Levo Runtime Application Security. ## The product [Upstream Fusion API Security](https://cybersectools.com/tools/upstream-fusion-api-security) by Upstream API security platform for automotive, mobility & transportation industries Category: [Application Security](https://cybersectools.com/categories/application-security) · Pricing model: Commercial 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. ## Upstream Fusion API Security alternatives and competitors Upstream Fusion API Security is a commercial [API Security](https://cybersectools.com/categories/api-security) solution made by Upstream. The closest matches by shared tags and NIST CSF 2.0 coverage are [Akamai API Security](https://cybersectools.com/tools/akamai-api-security), [Imperva API Security](https://cybersectools.com/tools/imperva-api-security), [Levo Runtime Application Security](https://cybersectools.com/tools/levo-runtime-application-security), [Ammune API Discovery](https://cybersectools.com/tools/ammune-api-discovery), and [Operant AI API Threat Protection](https://cybersectools.com/tools/operant-ai-api-threat-protection). All 38 alternatives on this page are ranked the same way. ## The closest Upstream Fusion API Security alternatives These 8 solutions overlap most with Upstream Fusion API Security. Each one says what the product does and, when the overlap is big enough, which capabilities it shares. ### 1. [Akamai API Security](https://cybersectools.com/tools/akamai-api-security) API security platform for discovery, testing, and protection of APIs [API Security](https://cybersectools.com/categories/api-security) · Commercial Key features: 10 listed. See them on the [Akamai API Security page](https://cybersectools.com/tools/akamai-api-security#features). [Akamai API Security alternatives](https://cybersectools.com/alternatives/akamai-api-security) · [Upstream Fusion API Security vs Akamai API Security](https://cybersectools.com/compare/akamai-api-security-vs-upstream-fusion-api-security) ### 2. [Imperva API Security](https://cybersectools.com/tools/imperva-api-security) Unified API security platform for discovery, risk assessment, and mitigation [API Security](https://cybersectools.com/categories/api-security) · Commercial Key features: 10 listed. See them on the [Imperva API Security page](https://cybersectools.com/tools/imperva-api-security#features). [Imperva API Security alternatives](https://cybersectools.com/alternatives/imperva-api-security) · [Upstream Fusion API Security vs Imperva API Security](https://cybersectools.com/compare/imperva-api-security-vs-upstream-fusion-api-security) ### 3. [Levo Runtime Application Security](https://cybersectools.com/tools/levo-runtime-application-security) Runtime application security platform for API and AI stack protection [API Security](https://cybersectools.com/categories/api-security) · Commercial Key features: 10 listed. See them on the [Levo Runtime Application Security page](https://cybersectools.com/tools/levo-runtime-application-security#features). [Levo Runtime Application Security alternatives](https://cybersectools.com/alternatives/levo-runtime-application-security) · [Upstream Fusion API Security vs Levo Runtime Application Security](https://cybersectools.com/compare/levo-runtime-application-security-vs-upstream-fusion-api-security) ### 4. [Ammune API Discovery](https://cybersectools.com/tools/ammune-api-discovery) API security platform with discovery, WAF, bot protection, and DDoS defense [API Security](https://cybersectools.com/categories/api-security) · Commercial Key features: 10 listed. See them on the [Ammune API Discovery page](https://cybersectools.com/tools/ammune-api-discovery#features). [Ammune API Discovery alternatives](https://cybersectools.com/alternatives/ammune-api-discovery) · [Upstream Fusion API Security vs Ammune API Discovery](https://cybersectools.com/compare/ammune-api-discovery-vs-upstream-fusion-api-security) ### 5. [Operant AI API Threat Protection](https://cybersectools.com/tools/operant-ai-api-threat-protection) Runtime API threat protection for Kubernetes environments with discovery [API Security](https://cybersectools.com/categories/api-security) · Commercial Key features: 10 listed. See them on the [Operant AI API Threat Protection page](https://cybersectools.com/tools/operant-ai-api-threat-protection#features). [Operant AI API Threat Protection alternatives](https://cybersectools.com/alternatives/operant-ai-api-threat-protection) · [Upstream Fusion API Security vs Operant AI API Threat Protection](https://cybersectools.com/compare/operant-ai-api-threat-protection-vs-upstream-fusion-api-security) ### 6. [Indusface AppTrana - API Protection](https://cybersectools.com/tools/indusface-apptrana-api-protection) Managed API security platform with discovery, DAST, WAF, and 24x7 SOC [API Security](https://cybersectools.com/categories/api-security) · Commercial Key features: 10 listed. See them on the [Indusface AppTrana - API Protection page](https://cybersectools.com/tools/indusface-apptrana-api-protection#features). [Indusface AppTrana - API Protection alternatives](https://cybersectools.com/alternatives/indusface-apptrana-api-protection) · [Upstream Fusion API Security vs Indusface AppTrana - API Protection](https://cybersectools.com/compare/indusface-apptrana-api-protection-vs-upstream-fusion-api-security) ### 7. [Prophaze API Security](https://cybersectools.com/tools/prophaze-api-security) AI-powered API security platform with threat detection and discovery [API Security](https://cybersectools.com/categories/api-security) · Commercial Key features: 10 listed. See them on the [Prophaze API Security page](https://cybersectools.com/tools/prophaze-api-security#features). [Prophaze API Security alternatives](https://cybersectools.com/alternatives/prophaze-api-security) · [Upstream Fusion API Security vs Prophaze API Security](https://cybersectools.com/compare/prophaze-api-security-vs-upstream-fusion-api-security) ### 8. [Cequence API Security](https://cybersectools.com/tools/cequence-api-security) API security platform for discovery, testing, and protection of APIs [API Security](https://cybersectools.com/categories/api-security) · Commercial Key features: 10 listed. See them on the [Cequence API Security page](https://cybersectools.com/tools/cequence-api-security#features). [Cequence API Security alternatives](https://cybersectools.com/alternatives/cequence-api-security) · [Upstream Fusion API Security vs Cequence API Security](https://cybersectools.com/compare/cequence-api-security-vs-upstream-fusion-api-security) ## All 38 products like Upstream Fusion API Security The 8 above, plus: - [Wallarm API Security](https://cybersectools.com/tools/wallarm-api-security): Inline API discovery and protection platform blocking attacks, abuse, and ATO. (Commercial) - [Fastly API Security](https://cybersectools.com/tools/fastly-api-security): API security platform for discovery, monitoring, and protection at edge (Commercial) - [Data Theorem API Security](https://cybersectools.com/tools/data-theorem-api-security): API security platform for discovery, testing, and runtime protection (Commercial) - [ThreatX Attacker-Centric Behavioral Analytics](https://cybersectools.com/tools/threatx-attacker-centric-behavioral-analytics): Behavioral analytics platform for API and application threat detection (Commercial) - [Salt Security Illuminate](https://cybersectools.com/tools/salt-security-illuminate): API security platform providing discovery, posture management, and threat detection (Commercial) - [Traceable API Security](https://cybersectools.com/tools/traceable-appsec): Platform for API & app security with discovery, testing, and protection (Commercial) - [42Crunch API Security Platform](https://cybersectools.com/tools/42crunch-api-security-platform): Platform for automated API security testing and runtime threat protection (Commercial) - [Cloudflare API Shield](https://cybersectools.com/tools/cloudflare-api-shield): API security platform for discovering, validating, and protecting API endpoints (Commercial) - [Edgescan API Security Testing](https://cybersectools.com/tools/edgescan-api-security-testing): API discovery, vulnerability scanning, and penetration testing platform (Commercial) - [Pynt Detect Sensitive Data and Excessive Data Exposure](https://cybersectools.com/tools/pynt-detect-sensitive-data-and-excessive-data-exposure): AI-powered API security tool detecting sensitive data & excessive data exposure (Commercial) - [Orca API Security](https://cybersectools.com/tools/orca-api-security): Agentless cloud API discovery, posture management, and drift detection. (Commercial) - [TeejLab API Discovery Manager](https://cybersectools.com/tools/teejlab-api-discovery-manager): API discovery, security, governance & lifecycle mgmt platform for enterprises (Commercial) - [APIsec API Security](https://cybersectools.com/tools/apisec-api-security): AI-powered API security testing platform with continuous attack simulation (Commercial) - [Equixly The Agentic AI Hacker](https://cybersectools.com/tools/equixly-the-agentic-ai-hacker): AI-powered API security testing platform for continuous vulnerability scanning (Commercial) - [CloudMatos MatosSphere API Security](https://cybersectools.com/tools/cloudmatos-matossphere-api-security): API security platform for SMBs with threat detection and vulnerability mgmt. (Commercial) - [Checkmarx API Security](https://cybersectools.com/tools/checkmarx-api-security): API security tool that discovers APIs in code and addresses vulnerabilities (Commercial) - [Escape API Security](https://cybersectools.com/tools/escape-api-security): API discovery, documentation, and security testing platform for APIs (Commercial) - [Invicti API Security](https://cybersectools.com/tools/invicti-api-security): API security testing platform with discovery, scanning, and remediation (Commercial) - [Detectify API Scanning](https://cybersectools.com/tools/detectify-api-scanning): Dynamic API vulnerability scanner with payload-based testing and fuzzing (Commercial) - [StackHawk API Discovery](https://cybersectools.com/tools/stackhawk-api-discovery): API discovery tool that maps application attack surface from source code (Commercial) - [Spherical Defense Autonomous Protection](https://cybersectools.com/tools/spherical-defense-autonomous-protection): AI-powered API security platform using unsupervised deep learning (Commercial) - [eXate APIgator](https://cybersectools.com/tools/exate-apigator): API data-in-motion protection using claims-based access and PoLP enforcement. (Commercial) - [Forum Systems Sentry](https://cybersectools.com/tools/forum-systems-sentry): API security & Zero Trust enforcement for Docker microservices. (Commercial) - [Syhunt SyhuntAPI](https://cybersectools.com/tools/syhunt-syhuntapi): API security testing tool for detecting vulnerabilities in web APIs (Commercial) - [Mend API Security](https://cybersectools.com/tools/mend-api-security): API security solution within Mend's AppSec platform (Commercial) - [Prancer Autonomous API Security](https://cybersectools.com/tools/prancer-autonomous-api-security): AI-driven API pentesting platform with schema-aware testing and fuzzing (Commercial) - [Acunetix API Security Testing](https://cybersectools.com/tools/acunetix-api-security-testing): API vulnerability scanning and testing for REST, SOAP, and GraphQL APIs (Commercial) - [Corsha Automated Machine Trust](https://cybersectools.com/tools/corsha-automated-machine-trust): Zero trust API security platform with automated MFA for machine identities (Commercial) - [SecureLayer7 BugDazz API Security Scanner](https://cybersectools.com/tools/securelayer7-bugdazz-api-security-scanner): API security scanner for automated vulnerability detection in CI/CD pipelines (Commercial) - [Impart WAF](https://cybersectools.com/tools/impart-waf): Modern WAF with code-based rules and developer-focused workflow integration (Commercial) ## Alternatives to each of these [Akamai API Security alternatives](https://cybersectools.com/alternatives/akamai-api-security) · [Imperva API Security alternatives](https://cybersectools.com/alternatives/imperva-api-security) · [Levo Runtime Application Security alternatives](https://cybersectools.com/alternatives/levo-runtime-application-security) · [Ammune API Discovery alternatives](https://cybersectools.com/alternatives/ammune-api-discovery) · [Operant AI API Threat Protection alternatives](https://cybersectools.com/alternatives/operant-ai-api-threat-protection) · [Indusface AppTrana - API Protection alternatives](https://cybersectools.com/alternatives/indusface-apptrana-api-protection) · [Prophaze API Security alternatives](https://cybersectools.com/alternatives/prophaze-api-security) · [Cequence API Security alternatives](https://cybersectools.com/alternatives/cequence-api-security) · [Wallarm API Security alternatives](https://cybersectools.com/alternatives/wallarm-api-security) · [Fastly API Security alternatives](https://cybersectools.com/alternatives/fastly-api-security) · [Data Theorem API Security alternatives](https://cybersectools.com/alternatives/data-theorem-api-security) · [ThreatX Attacker-Centric Behavioral Analytics alternatives](https://cybersectools.com/alternatives/threatx-attacker-centric-behavioral-analytics) ## Other Upstream products [Upstream AutoThreat® PRO alternatives](https://cybersectools.com/alternatives/upstream-autothreatr-pro) · [Upstream Automotive Cybersecurity alternatives](https://cybersectools.com/alternatives/upstream-automotive-cybersecurity) · [Upstream Cybersecurity Detection & Response (XDR) alternatives](https://cybersectools.com/alternatives/upstream-cybersecurity-detection-and-response-xdr) · [Upstream Platform alternatives](https://cybersectools.com/alternatives/upstream-platform) · [Upstream Vehicle Security Operations Center (vSOC) alternatives](https://cybersectools.com/alternatives/upstream-vehicle-security-operations-center-vsoc) · [Upstream XDR alternatives](https://cybersectools.com/alternatives/upstream-xdr) ## Compare Upstream Fusion API Security with - [Upstream Fusion API Security vs Akamai API Security](https://cybersectools.com/compare/akamai-api-security-vs-upstream-fusion-api-security) - [Upstream Fusion API Security vs Imperva API Security](https://cybersectools.com/compare/imperva-api-security-vs-upstream-fusion-api-security) - [Upstream Fusion API Security vs Levo Runtime Application Security](https://cybersectools.com/compare/levo-runtime-application-security-vs-upstream-fusion-api-security) - [Upstream Fusion API Security vs Ammune API Discovery](https://cybersectools.com/compare/ammune-api-discovery-vs-upstream-fusion-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 Indusface AppTrana - API Protection](https://cybersectools.com/compare/indusface-apptrana-api-protection-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) - [Upstream Fusion API Security vs Cequence API Security](https://cybersectools.com/compare/cequence-api-security-vs-upstream-fusion-api-security) ## Upstream Fusion API Security Alternatives FAQ ### What are the closest alternatives to Upstream Fusion API Security? The closest matches to Upstream Fusion API Security by shared tags and NIST CSF 2.0 coverage are Akamai API Security, Imperva API Security, Levo Runtime Application Security, Ammune API Discovery, and Operant AI API Threat Protection. All of them are API Security products. ### How many alternatives to Upstream Fusion API Security are available? This page shows 38 alternatives to Upstream Fusion API Security, all in the API Security category. Each one is matched on shared tags and NIST CSF 2.0 areas, and the closest matches rank first. ### Is Upstream Fusion API Security free or commercial? Upstream Fusion API Security is a commercial API Security product. It needs a paid license or subscription. Only commercial alternatives are listed here. Free and open source products are under /free. ### What type of solution is Upstream Fusion API Security? Upstream Fusion API Security is a API Security product in the Application Security category. You can compare it with the 38 other API Security products on this page. --- Source: https://cybersectools.com/alternatives/upstream-fusion-api-security For AI agents: every CybersecTools shortlist is listed at https://cybersectools.com/shortlists.md, and any product or compare page has a Markdown copy too (add .md to its URL). More on Upstream Fusion API Security and its alternatives: 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=alternatives-md