Kastra vs Push Security

Side-by-side comparison of features, pricing, and ratings

Analysis generated Live tool data as of 2026-11-13
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Kastra or Push Security: which should you choose?

DimensionKastraPush Security
Primary FocusRuntime authorization for AI coding agentsBrowser-based attack detection and AI tool governance
Key Detection/EnforcementShell commands, file edits, API calls, browser actions; blocks before executionAiTM phishing, ClickFix, session hijacking, malicious OAuth, data leakage to AI tools
Integration TargetsClaude Code, Cursor, Codex CLI, OpenClaw, Datadog, Splunk, S3Okta, Azure AD, Google Workspace, Slack, Teams, Sentinel, Datadog, Splunk
DeploymentmacOS GUI + CLI; cloud control plane (US, EU, AP); self-hosted/air-gapped availableCloud-based; browser extension across Chrome, Edge, Firefox, Safari, etc.
Best ForDev teams using AI coding agents who need guardrails against destructive commandsSecurity/identity teams securing browser-based attacks and shadow AI usage
PricingFreemium (free local Edge governance; cloud plans require subscription)Freemium (details not specified beyond free tier)

Push Security and Kastra solve different problems: Push protects against browser-level attacks and shadow AI tool use across all browsers, while Kastra prevents AI coding agents from executing dangerous actions in real time. If your priority is defending users from AiTM phishing, malicious OAuth, and data leakage to AI sites, go with Push Security. If you need runtime guardrails for Claude Code, Cursor, or similar agents to stop destructive commands, choose Kastra.

Try KastraTry Push Security
Kastra
Kastra

Runtime authorization for AI agents — allow, deny, redact, or hold every action before it executes

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Push Security
Push Security

Browser security extension that blocks AiTM phishing and ClickFix while giving teams shadow AI visibility

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Pricing
Freemium
Paid
Plans
FreeFree
Pro (15-day trial)15-day self-serve trial
TeamCustom
EnterpriseCustom
Standard$5/user/mo
EnterpriseCustom
Popularity
6 views
7.5k views
Skill Level
Intermediate
Advanced
API Available
Platforms
CLIAPIPluginDesktop
Web
Categories
🛡️ AI Governance & Guardrails
🚨 Threat Detection & SOC🔒 Security & Privacy
FeaturesKastraPush Security
Attribute-based policy evaluation in under one millisecond
Four-decision model: allow, deny, redact, or hold before execution
Governs prompts, tool calls, shell commands, database operations, API requests, and agent workflows
Kastra HTTP API for production agents
Kastra Edge for local enforcement on developer machines
Governs Claude Code, Cursor, and Codex via Kastra Edge
MCP client connection to read governance data
Kastra CLI for command-line policy operations
Cryptographically chained audit trail with ed25519-signed traces
Kastra Recon scans agent history and drafts policies from what it finds
Real-time approval workflows for sensitive actions
Real-time decision streaming to Datadog, Splunk, and S3
Self-hosted and air-gapped deployment options
No-signup sandbox for testing policy decisions
15-day self-serve Pro trial with API keys created in the console
Real-time AiTM reverse-proxy phishing detection and blocking in the browser
Cloned login page, Browser-in-the-Browser and Browser-in-the-Middle detection
ClickFix clipboard injection blocking at the point of interaction
Device code phishing detection via OAuth 2.0 Device Authorization Grant abuse
ConsentFix and malicious OAuth consent monitoring, blocking and app removal
Session hijacking and credential attack blocking with custom detection rules
Malicious browser extension detection, risk scoring, removal and default-deny allowlisting
Extension supply chain change monitoring for ownership transfers and permission escalations
Shadow AI app discovery and agentic browser detection
AI prompt and data-input monitoring plus AI clipboard monitoring and blocking
AI file upload monitoring and AI OAuth / agent permission monitoring
AI usage policy enforcement blocking unsanctioned AI tools
Data loss prevention enforced at the point of interaction in the browser
Autonomous threat hunting agents that write detection rules and deploy blocks
Browser telemetry investigation and response across tabs and popups; REST API for custom integrations
IntegrationsKastraPush Security
Claude Code
Cursor
Codex
Datadog
Splunk
S3
Proofpoint
Okta
Google Workspace
Microsoft 365
Microsoft Teams
Microsoft Sentinel
SentinelOne
Slack

Who should pick Kastra, and who should pick Push Security?

  • Security team combatting phishing and shadow AI
    Pick: Push Security

    Push Security detects and blocks AiTM, ClickFix, and session hijacking while providing visibility into AI tool usage and data leakage, all without requiring a proprietary browser.

  • Developer using Claude Code or Cursor
    Pick: Kastra

    Kastra intercepts agent actions in real time, enforcing policies on shell, file, and network operations without slowing workflows, and provides signed audit trails for compliance.

  • Platform team governing AI agent usage
    Pick: Kastra

    Kastra's Policy Decision Point and approval workflows allow centralized control over agent actions across a team, with streaming to SIEM for audit.

  • Identity team hardening MFA adoption
    Pick: Push Security

    Push Security's in-browser MFA registration guardrails and password change protection help enforce identity policies and detect ghost logins.

  • Compliance officer requiring agent traceability
    Pick: Kastra

    Kastra's ed25519-signed append-only audit trail ensures tamper-proof logs of all agent actions, meeting rigorous compliance requirements.

Frequently Asked Questions

Kastra vs Push Security: which should you choose?

Push Security and Kastra solve different problems: Push protects against browser-level attacks and shadow AI tool use across all browsers, while Kastra prevents AI coding agents from executing dangerous actions in real time. If your priority is defending users from AiTM phishing, malicious OAuth, and data leakage to AI sites, go with Push Security. If you need runtime guardrails for Claude Code, Cursor, or similar agents to stop destructive commands, choose Kastra.

Can Push Security work alongside an existing EDR or browser?

Yes, Push Security is designed to complement EDR by providing browser-specific telemetry that EDRs may miss, and works across all major browsers including Chrome, Edge, Firefox, Safari, Brave, Opera, Arc, and enterprise browsers like Island.

Does Kastra support AI agents other than Claude Code and Cursor?

Currently Kastra supports Claude Code, Cursor, Codex CLI, and OpenClaw. Support for other agents like Copilot or Gemini may require custom SDK integration.

Is Push Security's detection fully automated?

Push Security uses autonomous agents that hunt with browser telemetry in real time, writing detection rules and deploying blocks without analyst intervention.

Can Kastra be used for non-coding AI agents?

Kastra intercepts actions across shell, file, network, database, and browser contexts, so it could apply to any agent that performs those actions, but it is primarily designed for coding agents as listed.

What deployment options does Kastra offer for air-gapped environments?

Kastra provides self-hosted and air-gapped deployment options in addition to its cloud control plane with US, EU, and AP regions.

Does Push Security offer mobile phishing detection?

Yes, Push Security detects mobile phishing via SMS and QR codes as part of its browser-based protection.

Can Kastra block a command before it executes?

Yes, Kastra's PDP evaluates each action before execution and can block or require approval for sensitive actions in real time.

How does Push Security handle AI tool data loss prevention?

Push Security provides in-browser DLP for AI tools by controlling clipboard data and file uploads to prevent sensitive data from being sent to LLMs.

What else are Kastra and Push Security compared with?

Amplitude vs Push Security comparison

These are not competitors, and you should not shortlist them against each other. Push Security answers a security question — how do you stop browser-based phishing (AiTM, ClickFix, device code, consen

Sentry vs Push Security comparison

These two don't compete for the same budget, so there's no either/or decision here. Buy Push Security if you're a security or identity team watching AiTM phishing, ClickFix, device-code phishing, and

Datadog vs Push Security comparison

These are not substitutes — they're different layers of a security/ops stack. Buy Datadog if your problem is observability, cloud posture, or AI-workload monitoring across multi-cloud infrastructure;

Looker vs Push Security comparison

These two are not competitors and shouldn't be evaluated head-to-head — they solve different problems for different budget owners. If your problem is browser-borne attacks (AiTM reverse proxies, Click

Power BI vs Push Security comparison

These are not competitors, so there is no 'either/or' decision here — shortlisting both in one evaluation would be a category mistake. If your problem is browser-delivered credential theft, AiTM rever

Tableau vs Push Security comparison

There is no buying decision here. Push Security protects browsers from AiTM, ClickFix, device code and consent phishing and gives security teams visibility into shadow AI usage at roughly $5/user/mont

Where can you read more about Kastra and Push Security?

Kastra
View Kastra reviewKastra alternatives
Push Security
View Push Security reviewPush Security alternatives

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