A security checkpoint that sits between AI agents and the tools they're allowed to use, blocking dangerous actions before they run.
solongate.com
Alternatives to
Onyx Security
Best alternatives to Onyx Security in 2026
AI agents don't just live in one place anymore — they show up inside SaaS tools, cloud infrastructure, developer laptops, and code repositories, often installed by different teams who never talk to each other. Onyx Security is built to be the one place that sees all of them at once: it finds every agent, figures out what permissions and data each one can touch, and has a "Guardian Agent" that watches continuously and steps in if something behaves like it shouldn't — excessive permissions, data exposure, unauthorized actions. Onyx Security is a control plane for securing AI agents and models across the enterprise, discovering agents across SaaS, cloud, developer workstations, and code repositories, then mapping their permissions and behavior. Its Guardian Agent provides continuous monitoring and intervenes on anomalies like excessive permissions, data exposure, or unauthorized actions. Pricing isn't public — enterprise sales only. It targets security, governance, and AI teams, plus CISOs, trying to enable AI adoption without losing compliance control.
Quick comparison of Onyx Security alternatives
| # | Tool | Best for | Price |
|---|---|---|---|
| 1 | Équipes sécurité d'organisations déployant des agents IA autonomes en production (gouvernement, défense, grandes entreprises) | — | |
| 2 | Équipes sécurité et exécutifs (CISO, CIO, CEO) d'entreprises en secteurs régulés déployant l'IA générative à grande échelle | — | |
| 3 | Équipes sécurité, DevOps et engineering gérant à grande échelle des identités machine et agents IA | — | |
| 4 | Développeurs et équipes utilisant Claude Desktop ou Cursor avec des serveurs MCP tiers, soucieux de la sécurité des appels d'outils IA | — | |
| 5 | Site owners and developers managing AI crawler access | — | |
| 6 | Privacy-conscious users wanting model-agnostic AI access from their browser | — | |
| 7 | Developers wanting privacy/consent management integrated into their codebase | — | |
| 8 | IT/DevOps teams replacing corporate VPNs with Zero Trust access | — | |
| 9 | Businesses needing GDPR-compliant, frictionless bot protection | — | |
| 10 | Organisations d'ingénierie, équipes sécurité/conformité adoptant des agents de code IA | — | |
| 11 | Équipes MCP/API et sécurité déployant des agents IA | — | |
| 12 | Équipes DevOps/SRE et administrateurs système voulant un moniteur d'expiration de certificat sans dépendance pour cron/CI | — |
#1
- ✓ Se positionne directement dans le chemin d'exécution, donc peut bloquer un appel avant qu'il ne s'exécute
- ✓ Conçu spécifiquement pour le protocole MCP
#2
A security platform that tests and monitors company AI systems for attacks like prompt injection, flagging and blocking manipulation attempts before they cause damage.
lasso.security
- ✓ Couvre à la fois le test proactif et la protection en temps réel
- ✓ Détection d'injection de prompt annoncée sous 50ms à 99,83% de précision
#3
A platform that finds and tracks every "non-human identity" in your company — API keys, service accounts, AI agents, secrets — and flags when one of them starts behaving suspiciously.
entro.security
- ✓ Couvre 1200+ types d'identités non-humaines et secrets
- ✓ Moteur de détection comportementale en temps réel dédié
#4
macOS app that intercepts and audits MCP server traffic between Claude Desktop or Cursor and connected tools for security oversight.
mcpsnitch.ai
- ✓ Purpose-built for MCP, not a repurposed generic tool
- ✓ Free, open-source option under GPL-3.0
#5
Free, in-browser generator for robots.txt and llms.txt files that control which AI crawlers can access your site.
openrobots.vercel.app
- ✓ 100% client-side — no account, no data leaves your browser
- ✓ Covers 82+ named AI crawlers with sensible presets
#6
Privacy-first browser side panel AI assistant that works with any model or agent and anonymizes sensitive data before it leaves your browser.
chatpanel.net
- ✓ Works with any AI model or agent — in-browser, local, cloud API, or coding agents like Claude Code/Copilot
- ✓ Anonymizes sensitive data (emails, phone numbers, card numbers) before it leaves your browser, restores it in the reply
#7
Open-source, developer-first privacy and cookie-consent infrastructure with headless consent flows and version-controlled policies.
policystack.dev
- ✓ Fully open-source (Apache-2.0) with a public commitment to never relicense or paywall features
- ✓ Lightweight headless consent engine (under 4kb core)
#8
Open-source WireGuard-based mesh VPN that replaces traditional VPNs with Zero Trust, identity-based device access.
netbird.io
- ✓ Open-source (BSD-3-Clause + AGPLv3) with 28.9k GitHub stars and active development
- ✓ WireGuard-based peer-to-peer mesh is faster and simpler than routing through a central VPN gateway
#9
Invisible, privacy-first bot protection using proof-of-work instead of visual puzzles.
friendlycaptcha.com
- ✓ Invisible — no puzzles, no user friction
- ✓ GDPR-compliant by design, zero personal data collected
#10
Enterprise policy-enforcement layer that watches what coding agents do — prompts, commands, file changes — and blocks or alerts on sensitive data exposure.
oconeeruntime.com
- ✓ Visibilité temps réel sur les actions des agents IA
- ✓ Détection/blocage de données sensibles et credentials
#11
Authorization layer that checks every AI agent action against a policy before it runs, with per-action revocation and a full audit trail.
keydris.com
- ✓ Vérification par action, pas seulement par clé API
- ✓ Révocation ciblée sans tuer tout le processus
#12
A free Python command-line tool that checks a website's HTTPS certificate and tells you exactly what's wrong with it — expired, untrusted, wrong hostname — instead of a generic connection error.
github.com
- ✓ Zero dependencies, easy to drop into bare servers or containers
- ✓ Detailed diagnostics rather than a generic 'connection failed'
FAQ about Onyx Security alternatives
- What is the best alternative to Onyx Security in 2026?
- Based on our selection, SolonGate is the best alternative to Onyx Security in 2026. A security checkpoint that sits between AI agents and the tools they're allowed to use, blocking dangerous actions before they run.. See our full ranking above to compare all options.
- Is Onyx Security free?
- Onyx Security is a paid tool. Several alternatives in our selection offer free or freemium versions.
- How many alternatives to Onyx Security are there?
- mySelectas has listed 12 alternatives to Onyx Security in the Security & Privacy category. Our selection is updated regularly to include the best options available.