Open source llm-security projects
Every project in the registry tagged llm-security, ranked by real GitHub adoption.
the LLM vulnerability scanner
A full-stack AI Red Teaming platform securing AI ecosystems via Agent Scan, Skills Scan, MCP scan, AI Infra scan and LLM jailbreak evaluation.
🐢 Open-Source Evaluation & Testing library for LLM Agents
secure multiplexed execution paths for agents - zero trust, zero setup, zero latency.
Agentic LLM Vulnerability Scanner / AI red teaming kit 🧪
A powerful tool for automated LLM fuzzing. It is designed to help developers and security researchers identify and mitigate potential jailbreaks in their LLM AP
ADR secures enterprise AI agents through observability, security benchmarking, and threat detection. Deployed at Uber.
A security scanner for your LLM agentic workflows
An easy-to-use Python framework to generate adversarial jailbreak prompts.
Open-source AI agent firewall for MCP security and agent egress. Scans mediated HTTP, MCP, A2A, and WebSocket traffic for exfiltration, SSRF, and prompt injecti
The independent security agent for AI-written software. Finds issues, investigates whether they are real, and shows you the evidence. Deterministic core, no API
Local security audit for AI API relays and LLM proxies: detects prompt injection, model substitution, tool-call rewriting, SSE anomalies, error leakage, and Web
Runtime security for AI apps and agents: prompt injection detection, tool-call authorization, sensitive-data redaction, bot protection, and rate limiting. Drop
Open-source runtime AI agent security tool - monitors and controls AI agents, catching malicious tool use, prompt injection, and policy drift in real time, befo
Related tags
Frequently asked questions
How many open source llm-security projects are there?
This registry tracks 14 projects tagged llm-security, with 36,563 GitHub stars between them. The most-adopted is garak at 9,285 stars.
Are these llm-security projects free to use?
Yes — 14 of the 14 carry an explicit open-source licence across 4 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which llm-security project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these llm-security projects still maintained?
12 of the 14 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.