Prompt Injection Python Packages

llm-guard

The Security Toolkit for LLM Interactions

skylos

Open source local-first PR scanner that finds dead code, security bugs, secrets, quality regressions, and AI-code mistakes before merge. For first timers refer to https://duriantaco.github.io/skylos/repo-map/

agentdojo

A Dynamic Environment to Evaluate Attacks and Defenses for LLM Agents.

navi-sanitize

Deterministic input sanitization for untrusted text — invisible characters, homoglyphs, and encoding tricks, handled before your code sees them. Zero dependencies, no ML. Python 3.12+.

skilltotal

Scan AI components (MCP servers, agent skills, npm/PyPI packages) for malware & risky capabilities. Local, deterministic, evidence-anchored. Free & OSS.

mcpsafetywarden

MCP servers expose tools with no information about what they actually do at runtime. mcpsafetywarden sits between your agent and any MCP server, profiling tool behavior, blocking destructive calls, and running active security audits before you trust them in a workflow.

arcjet

Arcjet Python SDK. Stop bots and automated attacks from burning your AI budget, leaking data, or misusing tools with Arcjet's AI security building blocks.

aicu-scanner

Black-box security scanner for LLM applications — prompt injection, safety bypass, credential leakage

sunglasses

Sunglasses for AI agents. Protection layer + neighborhood watch.

agent-audit

Static security scanner for LLM agents — prompt injection, MCP config auditing, taint analysis. 51 rules mapped to OWASP Agentic Top 10 (2026). Works with LangChain, CrewAI, AutoGen.

mcp-audit-scanner

Security scanner for MCP (Model Context Protocol) server configurations. Detects prompt injection, credential exposure, supply chain risks, and more.

dfx-agentguard

Autonomous security scanner for AI agents - detects prompt injection, tool abuse, data exfiltration, and all 10 OWASP ASI Top 10 vulnerabilities. MCP server mode included.

crucible-security

pytest for AI agents - Autonomous red-teaming, behavioral monitoring & security testing for LLM agents

immunity-agent

Runtime security for Agents. Blocks dangerous commands, prevent secret leaks, stop prompt injection, gate risky package installs and visibility and control over tool calls.

mcppt

MCPTROTTER - 28 automated security checks for any MCP server

promptsanitizer

Secrets firewall for AI pipelines — redact credentials and PII before they reach (or leave) LLMs.

admina-core

The open framework for governed AI development: EU AI Act compliance, PII redaction, MCP proxy, prompt-injection firewall. Python + Rust, Apache 2.0

agent-prompt-injection-firewall-mcp

AI agent prompt injection firewall MCP. OWASP LLM Top 10 #1 runtime guard. MIT

unplug-ai

Every way an LLM can break one SDK to stop it. Injection. Hallucination. Leakage. Handled.

arcis

Inside-the-app security middleware for Node.js, Python, and Go. 20+ attack vectors. One install, three languages, MIT.

agent-attest

Evidence-grounded evaluation for AI agents — verifies each claim against the agent's real tool outputs (constrained, evidence-grounded model judgment, not holistic LLM-judge guesswork), with confidence intervals.

wardproof

Deterministic, auditable security boundaries for AI agents. Local-first, zero-dependency, MIT.

agentseal

Security toolkit for AI agents. Scan your machine for dangerous skills and MCP configs, monitor for supply chain attacks, test prompt injection resistance, and audit live MCP servers for tool poisoning.

pytector

Easy to use LLM Prompt Injection Detection and Prompt Input Sanitization / Detector Python Package with support for local models, API-based safeguards, and LangChain guardrails.