--- title: "AgentGuard vs PROMPTPurify" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/dipampaul17-agentguard-vs-securelayer7-promptpurify" tools: ["dipampaul17-agentguard", "securelayer7-promptpurify"] --- # AgentGuard vs PROMPTPurify *GraphCanon updated Sep 20, 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 PROMPTPurify if pROMPTPurify, licensed under MIT, provides an ai-safety solution with a focus on jailbreak-detection and prompt-injection-protection for LLM applications without relying on regex or signatures. [AgentGuard](https://github.com/dipampaul17/AgentGuard) reports 173 GitHub stars, 11 forks, and 2 open issues, last pushed Jul 31, 2025. [PROMPTPurify](https://anton.securelayer7.net) has 79 stars, 20 forks, and 0 open issues, last pushed May 31, 2026. Figures are from public GitHub metadata via [AgentGuard's repository](https://github.com/dipampaul17/AgentGuard) and [PROMPTPurify's repository](https://github.com/securelayer7/PROMPTPurify). | | [AgentGuard](/tools/dipampaul17-agentguard.md) | [PROMPTPurify](/tools/securelayer7-promptpurify.md) | | --- | --- | --- | | Tagline | Real-time guardrail that monitors token spend and manages LLM/agent loops in real time | Prompt-injection guardrail for LLM applications | | Stars | 173 | 79 | | Forks | 11 | 20 | | Open issues | 2 | 0 | | Language | JavaScript | TypeScript | | 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. | PROMPTPurify, licensed under MIT, provides an ai-safety solution with a focus on jailbreak-detection and prompt-injection-protection for LLM applications without relying on regex or signatures. | | Persona | - | - | | Runtime | - | - | | License | MIT | MIT | | Categories | Evaluation & Observability, Inference & Serving | Evaluation & Observability, LLM Frameworks | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [AgentGuard](/tools/dipampaul17-agentguard.md) | [PROMPTPurify](/tools/securelayer7-promptpurify.md) | | --- | --- | --- | | Maintenance | Dormant (18%) | Slowing (36%) | | Days since push | 407d | 104d | | Open issues (now) | 2 | 0 | | Stars delta | +2 (30d) | +4 (30d) | | Open issues delta | +1 (30d) | 0 (30d) | | Owner type | User | Organization | | Full report | [trust report](/tools/dipampaul17-agentguard/trust.md) | [trust report](/tools/securelayer7-promptpurify/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: PROMPTPurify - **Pricing:** freemium - The SDK and model weights of PROMPTPurify come under the MIT license, allowing free usage. However, the full extent of features or services might require a premium setup. - **Requirements:** - This tool is built with TypeScript.; - Ensure familiarity with TypeScript for efficient integration. - **Adopt for:** PROMPTPurify, licensed under MIT, provides an ai-safety solution with a focus on jailbreak-detection and prompt-injection-protection for LLM applications without relying on regex or signatures. ## Choose when ### Choose AgentGuard if… - AgentGuard is primarily JavaScript; PROMPTPurify is TypeScript. - 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 PROMPTPurify if… - PROMPTPurify is primarily TypeScript; AgentGuard is JavaScript. - Pricing: The SDK and model weights of PROMPTPurify come under the MIT license, allowing free usage. However, the full extent of features or services might require a premium setup.. - Requirements: - This tool is built with TypeScript.; - Ensure familiarity with TypeScript for efficient integration.. - Tags unique to PROMPTPurify: ai-firewall, ai-safety, ai-security, application-security. - Also covers LLM Frameworks. - - When you require compact model solutions that outperform larger open-source guards. ## 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 PROMPTPurify - - Avoid using PROMPTPurify if your project requires regex or signature-based methods for security purposes, as this tool does not support them. - - Do not use it if you are looking for comprehensive AI-security solutions that extend beyond prompt injection and jailbreak detection. ## Common questions ### What is the difference between AgentGuard and PROMPTPurify? AgentGuard: Real-time guardrail that monitors token spend and manages LLM/agent loops in real time. PROMPTPurify: Prompt-injection guardrail for LLM applications. See the comparison table for live GitHub stats and shared categories. ### When should I choose AgentGuard over PROMPTPurify? Choose AgentGuard over PROMPTPurify when AgentGuard is primarily JavaScript; PROMPTPurify is TypeScript; 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 PROMPTPurify over AgentGuard? Choose PROMPTPurify over AgentGuard when PROMPTPurify is primarily TypeScript; AgentGuard is JavaScript; Pricing: The SDK and model weights of PROMPTPurify come under the MIT license, allowing free usage. However, the full extent of features or services might require a premium setup.; Requirements: - This tool is built with TypeScript.; - Ensure familiarity with TypeScript for efficient integration.; Tags unique to PROMPTPurify: ai-firewall, ai-safety, ai-security, application-security; Also covers LLM Frameworks; - When you require compact model solutions that outperform larger open-source guards. ### 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 PROMPTPurify? - Avoid using PROMPTPurify if your project requires regex or signature-based methods for security purposes, as this tool does not support them. - Do not use it if you are looking for comprehensive AI-security solutions that extend beyond prompt injection and jailbreak detection. ### Is AgentGuard or PROMPTPurify more popular on GitHub? AgentGuard has more GitHub stars (173 vs 79). Stars measure visibility, not whether either tool fits your constraints. ### Are AgentGuard and PROMPTPurify open source? Yes - both are open-source projects on GitHub (AgentGuard: MIT, PROMPTPurify: MIT). ### Where can I find alternatives to AgentGuard or PROMPTPurify? GraphCanon lists graph-backed alternatives at [AgentGuard alternatives](/tools/dipampaul17-agentguard/alternatives) and [PROMPTPurify alternatives](/tools/securelayer7-promptpurify/alternatives) ([AgentGuard markdown twin](/tools/dipampaul17-agentguard/alternatives.md), [PROMPTPurify markdown twin](/tools/securelayer7-promptpurify/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-securelayer7-promptpurify.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, AgentGuard or PROMPTPurify? AgentGuard: Dormant. PROMPTPurify: 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 PROMPTPurify? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [AgentGuard trust report](/tools/dipampaul17-agentguard/trust); [PROMPTPurify trust report](/tools/securelayer7-promptpurify/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/_