Open source agent security
Stars are shown for context and are not part of any score. Archived or stalled projects are flagged: several went quiet after their company was acquired. Snapshot taken 2026-10-29.
| Repository | Stars | Contributors | Last push | Status |
|---|---|---|---|---|
| promptfoo/promptfoo | 26,602 | 391 | 2026-10-29 | Active |
| Portkey-AI/gateway | 13,290 | 123 | 2026-05-25 | Active |
| data-privacy-stack/presidio | 11,583 | 220 | 2026-10-29 | Active |
| modelcontextprotocol/inspector | 11,186 | 139 | 2026-10-29 | Active |
| NVIDIA/garak | 9,772 | 150 | 2026-10-27 | Active |
| guardrails-ai/guardrails | 7,569 | 79 | 2026-10-29 | Active |
| NVIDIA-NeMo/Guardrails | 7,398 | 130 | 2026-10-29 | Active |
| openfga/openfga | 6,062 | 120 | 2026-10-29 | Active |
| agentgateway/agentgateway | 5,781 | 285 | 2026-10-29 | Active |
| pomerium/pomerium | 5,082 | 105 | 2026-10-29 | Active |
| IBM/mcp-context-forge | 4,723 | 182 | 2026-10-29 | Active |
| microsoft/PyRIT | 4,712 | 221 | 2026-10-29 | Active |
| cerbos/cerbos | 4,637 | 35 | 2026-10-29 | Active |
| meta-llama/PurpleLlama | 4,450 | 73 | 2026-10-12 | Active |
| protectai/llm-guard | 3,220 | 24 | 2026-07-08 | Archived |
| snyk/agent-scan | 3,188 | 22 | 2026-10-28 | Active |
| confident-ai/deepteam | 3,070 | 27 | 2026-10-23 | Active |
| docker/mcp-gateway | 1,616 | 39 | 2026-10-26 | Active |
| cisco-ai-defense/mcp-scanner | 1,103 | 31 | 2026-10-28 | Active |