defender

by StackOneHQ · MCP Server · ★ 108

About defender

<img src="https://img.shields.io/badge/model-22MB-047B43

ai-securityindirect-prompt-injectionllm-securitymcp-securityprompt-injectionprompt-injection-defenseprompt-injection-detectionprompt-injection-protection

Quick Facts

Stars108
Forks10
LanguageTypeScript
CategoryMCP Server
LicenseApache-2.0
Quality Score72.3509856948637/100
Open Issues3
Last Updated2026-06-30
Created2026-02-13
Platformscli, mcp, node
Est. Tokens~17k

Compatible Skills

These tools work well together with defender for enhanced workflows:

  • agentshield-benchmark — semantic(0.56)+complementary+rare_topics+same_lang+similar_pop+shared_platform (78%)
  • clawmoat — semantic(0.61)+complementary+rare_topics+similar_pop+shared_platform (70%)
  • openclaw-skills-security — semantic(0.42)+complementary+rare_topics+similar_pop+shared_platform (68%)
  • openguardrails — semantic(0.45)+complementary+rare_topics+same_lang+similar_pop+shared_platform (65%)

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Frequently Asked Questions

What is defender?

defender is Open source prompt injection protection for Agents calling tools (via MCP, CLI or direct function calling). Detect and defend against prompt injection attacks. 22MB, CPU-only, < 10ms latency.. It is categorized as a MCP Server with 108 GitHub stars.

What programming language is defender written in?

defender is primarily written in TypeScript. It covers topics such as ai-security, indirect-prompt-injection, llm-security.

How do I install or use defender?

You can find installation instructions and usage details in the defender GitHub repository at github.com/StackOneHQ/defender. The project has 108 stars and 10 forks, indicating an active community.

What license does defender use?

defender is released under the Apache-2.0 license, making it free to use and modify according to the license terms.

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