--- title: "Aegis vs aigis" type: "comparison" canonical_url: "https://www.graphcanon.com/compare/justin0504-aegis-vs-killertcell428-aigis" tools: ["justin0504-aegis", "killertcell428-aigis"] --- # Aegis vs aigis *GraphCanon updated Sep 20, 2026* ## Verdict Pick Aegis if aegis provides runtime policy enforcement for AI agents with cryptographic audit trails and human-in-the-loop approvals, supporting zero-code deployment switches suited for various compliance needs; 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. [Aegis](https://github.com/Justin0504/Aegis) reports 340 GitHub stars, 37 forks, and 3 open issues, last pushed Sep 6, 2026. [aigis](https://pypi.org/project/pyaigis/) has 54 stars, 8 forks, and 13 open issues, last pushed Sep 8, 2026. Figures are from public GitHub metadata via [Aegis's repository](https://github.com/Justin0504/Aegis) and [aigis's repository](https://github.com/killertcell428/aigis). | | [Aegis](/tools/justin0504-aegis.md) | [aigis](/tools/killertcell428-aigis.md) | | --- | --- | --- | | Tagline | Runtime policy enforcement for AI agents with cryptographic audit trail and human-in-the-loop approvals. | Deterministic zero-dependency Python firewall for AI agents | | Stars | 340 | 54 | | Forks | 37 | 8 | | Open issues | 3 | 13 | | Language | TypeScript | Python | | Adopt for | Aegis provides runtime policy enforcement for AI agents with cryptographic audit trails and human-in-the-loop approvals, supporting zero-code deployment switches suited for various compliance needs. | 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. | | Persona | - | - | | Runtime | - | - | | License | MIT | Apache-2.0 | | Categories | AI Agents, Evaluation & Observability | AI Agents, Evaluation & Observability | ## Trust and health _Sourced signals - not a safety guarantee. No winner column._ | | [Aegis](/tools/justin0504-aegis.md) | [aigis](/tools/killertcell428-aigis.md) | | --- | --- | --- | | Open issues (now) | 3 | 13 | | Stars delta | -27 (30d) | +1 (30d) | | Open issues delta | 0 (30d) | +2 (30d) | | Full report | [trust report](/tools/justin0504-aegis/trust.md) | [trust report](/tools/killertcell428-aigis/trust.md) | ## Decision facts: Aegis - **Adopt for:** Aegis provides runtime policy enforcement for AI agents with cryptographic audit trails and human-in-the-loop approvals, supporting zero-code deployment switches suited for various compliance needs. ## 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. ## Choose when ### Choose Aegis if… - Aegis is primarily TypeScript; aigis is Python. - License: Aegis is MIT, aigis is Apache-2.0. - Tags unique to Aegis: ai-safety, anthropic, audit-trail, llm-observability. - You need cryptographic assurance of the audit trail to meet high-security standards. ### Choose aigis if… - aigis is primarily Python; Aegis is TypeScript. - License: aigis is Apache-2.0, Aegis is MIT. - Tags unique to aigis: ai-agent, ai-security, compliance, cybersecurity. - When your AI application requires robust security measures with minimal setup complexity ## When NOT to use Aegis - The project does not require a zero-code deployment switch and can manage changes directly in the codebase. - Minimal regulatory requirements mean that elaborate configurations like Aegis's strict retention policies are unnecessary. ## 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 ## Common questions ### What is the difference between Aegis and aigis? Aegis: Runtime policy enforcement for AI agents with cryptographic audit trail and human-in-the-loop approvals.. aigis: Deterministic zero-dependency Python firewall for AI agents. See the comparison table for live GitHub stats and shared categories. ### When should I choose Aegis over aigis? Choose Aegis over aigis when Aegis is primarily TypeScript; aigis is Python; License: Aegis is MIT, aigis is Apache-2.0; Tags unique to Aegis: ai-safety, anthropic, audit-trail, llm-observability; You need cryptographic assurance of the audit trail to meet high-security standards. ### When should I choose aigis over Aegis? Choose aigis over Aegis when aigis is primarily Python; Aegis is TypeScript; License: aigis is Apache-2.0, Aegis is MIT; Tags unique to aigis: ai-agent, ai-security, compliance, cybersecurity; When your AI application requires robust security measures with minimal setup complexity. ### When should I avoid Aegis? The project does not require a zero-code deployment switch and can manage changes directly in the codebase. Minimal regulatory requirements mean that elaborate configurations like Aegis's strict retention policies are unnecessary. ### 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 ### Is Aegis or aigis more popular on GitHub? Aegis has more GitHub stars (340 vs 54). Stars measure visibility, not whether either tool fits your constraints. ### Are Aegis and aigis open source? Yes - both are open-source projects on GitHub (Aegis: MIT, aigis: Apache-2.0). ### Where can I find alternatives to Aegis or aigis? GraphCanon lists graph-backed alternatives at [Aegis alternatives](/tools/justin0504-aegis/alternatives) and [aigis alternatives](/tools/killertcell428-aigis/alternatives) ([Aegis markdown twin](/tools/justin0504-aegis/alternatives.md), [aigis markdown twin](/tools/killertcell428-aigis/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/justin0504-aegis-vs-killertcell428-aigis.md) mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers. ### Which is better maintained, Aegis or aigis? Aegis: Very active. aigis: 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 Aegis and aigis? GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: [Aegis trust report](/tools/justin0504-aegis/trust); [aigis trust report](/tools/killertcell428-aigis/trust). --- **Machine-readable endpoints** - JSON: [`/api/graphcanon/graph?tool=justin0504-aegis`](/api/graphcanon/graph?tool=justin0504-aegis) - 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/_