--- title: "AgentGuard vs whistleblower" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/dipampaul17-agentguard-vs-repello-ai-whistleblower" tools: ["dipampaul17-agentguard", "repello-ai-whistleblower"] --- # AgentGuard vs whistleblower *GraphCanon updated Aug 9, 2026* ## Verdict Pick AgentGuard if agentGuard is a budget-conscious observer for real-time token spending by AI agents and LLMs, integrating with major providers like OpenAI and Anthropic; pick whistleblower if whistleblower is an offensive security tool for AI applications to detect prompt leakage and capability flaws via malicious API probing. [AgentGuard](https://github.com/dipampaul17/AgentGuard) reports 171 GitHub stars, 10 forks, and 1 open issues, last pushed Jul 31, 2025. [whistleblower](https://repello.ai/product) has 167 stars, 27 forks, and 13 open issues, last pushed Oct 31, 2025. Figures are from public GitHub metadata via [AgentGuard's repository](https://github.com/dipampaul17/AgentGuard) and [whistleblower's repository](https://github.com/Repello-AI/whistleblower). | | [AgentGuard](/tools/dipampaul17-agentguard.md) | [whistleblower](/tools/repello-ai-whistleblower.md) | | --- | --- | --- | | Tagline | Real-time guardrail that monitors token spend and manages LLM/agent loops in real time | A security testing tool for AI applications to uncover prompt leakage and capability flaws via API interactions. | | Stars | 171 | 167 | | Forks | 10 | 27 | | Open issues | 1 | 13 | | Language | JavaScript | Python | | Adopt for | AgentGuard is a budget-conscious observer for real-time token spending by AI agents and LLMs, integrating with major providers like OpenAI and Anthropic. | Whistleblower is an offensive security tool for AI applications to detect prompt leakage and capability flaws via malicious API probing. | | Persona | - | - | | Runtime | - | - | | License | MIT | - | | Categories | Evaluation & Observability, Inference & Serving | Evaluation & Observability | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [AgentGuard](/tools/dipampaul17-agentguard.md) | [whistleblower](/tools/repello-ai-whistleblower.md) | | --- | --- | --- | | Maintenance | Dormant (18%) | Slowing (36%) | | Days since push | 373d | 277d | | Open issues (now) | 1 | 13 | | Owner type | User | Organization | | Full report | [trust report](/tools/dipampaul17-agentguard/trust.md) | [trust report](/tools/repello-ai-whistleblower/trust.md) | ## Decision facts: AgentGuard - **Adopt for:** AgentGuard is a budget-conscious observer for real-time token spending by AI agents and LLMs, integrating with major providers like OpenAI and Anthropic. ## Decision facts: whistleblower - **Adopt for:** Whistleblower is an offensive security tool for AI applications to detect prompt leakage and capability flaws via malicious API probing. ## Choose when ### Choose AgentGuard if… - AgentGuard is primarily JavaScript; whistleblower is Python. - Tags unique to AgentGuard: ai-agents, anthropic, cost-monitoring, observability. - Also covers Inference & Serving. - When you need precise control over spend and want live updates on token prices ### Choose whistleblower if… - whistleblower is primarily Python; AgentGuard is JavaScript. - Tags unique to whistleblower: ai-red-teaming, ai-security, hacktoberfest, llm security. - When performing ethical hacking on LLM-based apps for security testing ## When NOT to use AgentGuard - If you prioritize a different language for your project and cannot use JavaScript - In cases requiring more elaborate fallback mechanisms than what AgentGuard offers ## When NOT to use whistleblower - If the focus is on non-API interaction based security vulnerabilities - When working with proprietary or restricted AI models that prohibit external probing ## Common questions ### What is the difference between AgentGuard and whistleblower? AgentGuard: Real-time guardrail that monitors token spend and manages LLM/agent loops in real time. whistleblower: A security testing tool for AI applications to uncover prompt leakage and capability flaws via API interactions.. See the comparison table for live GitHub stats and shared categories. ### When should I choose AgentGuard over whistleblower? Choose AgentGuard over whistleblower when AgentGuard is primarily JavaScript; whistleblower is Python; Tags unique to AgentGuard: ai-agents, anthropic, cost-monitoring, observability; Also covers Inference & Serving; When you need precise control over spend and want live updates on token prices. ### When should I choose whistleblower over AgentGuard? Choose whistleblower over AgentGuard when whistleblower is primarily Python; AgentGuard is JavaScript; Tags unique to whistleblower: ai-red-teaming, ai-security, hacktoberfest, llm security; When performing ethical hacking on LLM-based apps for security testing. ### When should I avoid AgentGuard? If you prioritize a different language for your project and cannot use JavaScript In cases requiring more elaborate fallback mechanisms than what AgentGuard offers ### When should I avoid whistleblower? If the focus is on non-API interaction based security vulnerabilities When working with proprietary or restricted AI models that prohibit external probing ### Is AgentGuard or whistleblower more popular on GitHub? AgentGuard has more GitHub stars (171 vs 167). Stars measure visibility, not whether either tool fits your constraints. ### Are AgentGuard and whistleblower open source? Yes - both are open-source projects on GitHub. ### Where can I find alternatives to AgentGuard or whistleblower? GraphCanon lists graph-backed alternatives at [AgentGuard alternatives](/tools/dipampaul17-agentguard/alternatives) and [whistleblower alternatives](/tools/repello-ai-whistleblower/alternatives) ([AgentGuard markdown twin](/tools/dipampaul17-agentguard/alternatives.md), [whistleblower markdown twin](/tools/repello-ai-whistleblower/alternatives.md)), ranked by typed relationship edges rather than popularity votes. ### Is there a machine-readable version of this comparison? Yes. The markdown twin at [this comparison](/compare/dipampaul17-agentguard-vs-repello-ai-whistleblower.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, AgentGuard or whistleblower? AgentGuard: Dormant. whistleblower: Slowing. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance. ### Where are the full trust reports for AgentGuard and whistleblower? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [AgentGuard trust report](/tools/dipampaul17-agentguard/trust); [whistleblower trust report](/tools/repello-ai-whistleblower/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=dipampaul17-agentguard`](/api/graphcanon/graph?tool=dipampaul17-agentguard) - LLM index: [/llms.txt](/llms.txt) - Full corpus: [/llms-full.txt](/llms-full.txt) _GraphCanon - The knowledge graph for AI development. https://www.graphcanon.com/_