Rune vs Pangea AI Guard: AI Security Compared
Security platform service vs framework-native agent security SDK
Pangea AI Guard and Rune represent different architectural approaches to AI security. Pangea is a security platform company that offers AI Guard as one service among many (audit logging, secrets management, embargo checks, etc.). AI Guard scans LLM prompts and responses for malicious content, PII, and intellectual property. Rune is a focused AI agent security SDK that embeds directly into your agent's framework.
Pangea's strength is breadth: if you need AI security alongside other security services (secrets management, secure file handling, IP intel, domain intel), Pangea provides a unified platform. AI Guard is one API among many, accessed through Pangea's SDK.
Rune's strength is depth in agent security: framework-native integration, tool call scanning, multi-agent monitoring, and a detection pipeline designed specifically for the unique threats AI agents face. Rune doesn't try to be a general security platform — it does agent security well.
Rune
Rune is a runtime security SDK for AI agents that wraps your LLM client and agent framework. It scans inputs, outputs, and tool calls through a multi-layer detection pipeline. Designed specifically for AI agents with tool access, multi-step workflows, and inter-agent communication. Includes a real-time dashboard.
Pangea AI Guard
Pangea AI Guard is a cloud API service that scans LLM prompts and responses for prompt injection, PII, malicious URLs, intellectual property, and toxic content. It's part of Pangea's broader security platform that includes secure audit logging, secrets management, file scanning, embargo checks, and more. AI Guard is accessed via Pangea's API with SDKs for Python, Node.js, Go, and Java.
Feature-by-Feature Comparison
Detection
| Feature | Rune | Pangea AI Guard |
|---|---|---|
| Prompt injection | Multi-layer: pattern + semantic + LLM | ML classifier via API |
| PII detection | Regex-based scanning | Entity recognition via API |
| Malicious URL detection | URL pattern scanning | URL + domain intelligence from Pangea platform |
| Tool call scanning | Full tool interaction scanning | Text-based API — no tool awareness |
| Intellectual property detection | Policy-based content rules | Dedicated IP scanning capability |
Platform
| Feature | Rune | Pangea AI Guard |
|---|---|---|
| Broader security services | AI agent security only | Audit log, secrets, file scan, embargo, IP intel |
| Multi-language SDKs | Python SDK (primary) | Python, Node.js, Go, Java SDKs |
| Framework-native integration | LangChain, OpenAI, Anthropic, CrewAI, MCP | Generic API calls — manual integration |
Operations
| Feature | Rune | Pangea AI Guard |
|---|---|---|
| Security dashboard | Agent-focused event stream and alerts | Pangea platform console |
| Policy engine | YAML policies with agent-specific rules | API-level configuration |
When to Choose Rune
Agent-native architecture
Rune wraps your agent's framework natively — LangChain middleware, OpenAI client wrapper, CrewAI crew wrapper. Pangea AI Guard requires manual API calls for each text you want scanned.
Tool call and multi-agent scanning
Rune scans tool calls, function parameters, and inter-agent communication. Pangea AI Guard only scans text you explicitly send to their API — it has no visibility into agent actions.
Purpose-built for agent security threats
Rune's detection pipeline is optimized for agent-specific attacks: tool manipulation, inter-agent escalation, RAG poisoning. Pangea AI Guard is a general-purpose LLM scanner.
When to Choose Pangea AI Guard
Need a unified security platform
If you need AI security alongside audit logging, secrets management, file scanning, embargo compliance, and IP intelligence, Pangea provides all of these in one platform. Rune focuses only on agent security.
Multi-language support
Pangea provides SDKs for Python, Node.js, Go, and Java. If your agents aren't Python-based, Pangea's broader language support may be necessary.
Best For
Choose Rune if...
Python teams building AI agents who need deep, framework-native security scanning with tool call awareness and a dedicated agent security dashboard.
Choose Pangea AI Guard if...
Teams that need AI security as part of a broader security platform with multi-language support, audit logging, and compliance services.
Frequently Asked Questions
Is Pangea AI Guard a standalone product?
AI Guard is one service in Pangea's security platform. You can use it independently, but its real value is when combined with Pangea's other services like audit logging and secrets management. Rune is a standalone agent security product.
Can Pangea AI Guard protect MCP servers?
No. Pangea AI Guard scans text via API calls — it doesn't understand the MCP protocol or intercept tool calls. Rune includes a dedicated MCP security proxy that speaks native MCP protocol.
Which is better for framework integration?
Rune, significantly. Rune provides native wrappers for LangChain, OpenAI, Anthropic, CrewAI, and MCP. Pangea requires you to add API calls manually at each point where you want scanning.
Does Pangea have a free tier?
Pangea offers a free tier with limited API calls across their platform. Rune's free tier includes 10,000 agent security events per month — focused entirely on security scanning.
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