--- title: "aigis vs prismor" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/killertcell428-aigis-vs-prismorsec-prismor" tools: ["killertcell428-aigis", "prismorsec-prismor"] --- # aigis vs prismor *GraphCanon updated Sep 20, 2026* ## Verdict Pick aigis if aigis is a deterministic zero-dependency Python firewall for AI agents offering protection against threats like memory poisoning and prompt injection with no external dependencies or complex configurations; pick prismor if prismor is a runtime firewall that safeguards AI frameworks against security breaches like prompt injection attacks and secret leaks. It supports Claude Code and Codex. [aigis](https://pypi.org/project/pyaigis/) reports 54 GitHub stars, 8 forks, and 13 open issues, last pushed Sep 8, 2026. [prismor](https://prismor.dev) has 343 stars, 35 forks, and 46 open issues, last pushed Sep 11, 2026. Figures are from public GitHub metadata via [aigis's repository](https://github.com/killertcell428/aigis) and [prismor's repository](https://github.com/PrismorSec/prismor). | | [aigis](/tools/killertcell428-aigis.md) | [prismor](/tools/prismorsec-prismor.md) | | --- | --- | --- | | Tagline | Deterministic zero-dependency Python firewall for AI agents | Runtime firewall for AI agents to prevent rogue tool calls and security breaches | | Stars | 54 | 343 | | Forks | 8 | 35 | | Open issues | 13 | 46 | | Language | Python | Python | | Adopt for | aigis is a deterministic zero-dependency Python firewall for AI agents offering protection against threats like memory poisoning and prompt injection with no external dependencies or complex configurations. | Prismor is a runtime firewall that safeguards AI frameworks against security breaches like prompt injection attacks and secret leaks. It supports Claude Code and Codex. | | Persona | - | - | | Runtime | - | - | | License | Apache-2.0 | Apache-2.0, permissive open-source license allowing free use and distribution under certain conditions. | | Categories | AI Agents, Evaluation & Observability | AI Agents, Evaluation & Observability | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [aigis](/tools/killertcell428-aigis.md) | [prismor](/tools/prismorsec-prismor.md) | | --- | --- | --- | | Days since push | 4d | 0d | | Open issues (now) | 13 | 46 | | Stars delta | +1 (30d) | +63 (30d) | | Open issues delta | +2 (30d) | +34 (30d) | | Owner type | User | Organization | | Full report | [trust report](/tools/killertcell428-aigis/trust.md) | [trust report](/tools/prismorsec-prismor/trust.md) | ## Shared compatibility - **Python**: [aigis](/tools/killertcell428-aigis.md) - Python runtime; [prismor](/tools/prismorsec-prismor.md) - Python runtime ## Decision facts: aigis - **Adopt for:** aigis is a deterministic zero-dependency Python firewall for AI agents offering protection against threats like memory poisoning and prompt injection with no external dependencies or complex configurations. ## Decision facts: prismor - **Pricing:** freemium - Free with a commercial license for advanced features. - **Requirements:** Min 1 GB RAM - **Adopt for:** Prismor is a runtime firewall that safeguards AI frameworks against security breaches like prompt injection attacks and secret leaks. It supports Claude Code and Codex. - **License detail:** Apache-2.0, permissive open-source license allowing free use and distribution under certain conditions. ## Choose when ### Choose aigis if… - Tags unique to aigis: ai-agent, ai-security, compliance, cybersecurity. - aigis ships Docker support for self-hosted deployment. - When your AI application requires robust security measures with minimal setup complexity ### Choose prismor if… - Pricing: Free with a commercial license for advanced features.. - Requirements: Min 1 GB RAM. - Tags unique to prismor: agent-security, ai-agents, llm-security, prompt-injection. - When you need a dedicated firewall for AI tools to block unauthorized calls. ## When NOT to use aigis - If your project strictly avoids adding third-party libraries - When a full-fledged security solution with comprehensive features is necessary over minimal dependency footprint ## When NOT to use prismor - Avoid if you do not use supported frameworks like Claude Code or Codex, as it might lack coverage. - Not suitable if you prioritize open-source contributions over runtime protection. ## Common questions ### What is the difference between aigis and prismor? aigis: Deterministic zero-dependency Python firewall for AI agents. prismor: Runtime firewall for AI agents to prevent rogue tool calls and security breaches. See the comparison table for live GitHub stats and shared categories. ### When should I choose aigis over prismor? Choose aigis over prismor when Tags unique to aigis: ai-agent, ai-security, compliance, cybersecurity; aigis ships Docker support for self-hosted deployment; When your AI application requires robust security measures with minimal setup complexity. ### When should I choose prismor over aigis? Choose prismor over aigis when Pricing: Free with a commercial license for advanced features.; Requirements: Min 1 GB RAM; Tags unique to prismor: agent-security, ai-agents, llm-security, prompt-injection; When you need a dedicated firewall for AI tools to block unauthorized calls. ### When should I avoid aigis? If your project strictly avoids adding third-party libraries When a full-fledged security solution with comprehensive features is necessary over minimal dependency footprint ### When should I avoid prismor? Avoid if you do not use supported frameworks like Claude Code or Codex, as it might lack coverage. Not suitable if you prioritize open-source contributions over runtime protection. ### Is aigis or prismor more popular on GitHub? prismor has more GitHub stars (343 vs 54). Stars measure visibility, not whether either tool fits your constraints. ### Are aigis and prismor open source? Yes - both are open-source projects on GitHub (aigis: Apache-2.0, prismor: Apache-2.0). ### Where can I find alternatives to aigis or prismor? GraphCanon lists graph-backed alternatives at [aigis alternatives](/tools/killertcell428-aigis/alternatives) and [prismor alternatives](/tools/prismorsec-prismor/alternatives) ([aigis markdown twin](/tools/killertcell428-aigis/alternatives.md), [prismor markdown twin](/tools/prismorsec-prismor/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/killertcell428-aigis-vs-prismorsec-prismor.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, aigis or prismor? aigis: Very active. prismor: Very active. 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 aigis and prismor? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [aigis trust report](/tools/killertcell428-aigis/trust); [prismor trust report](/tools/prismorsec-prismor/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=killertcell428-aigis`](/api/graphcanon/graph?tool=killertcell428-aigis) - 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/_