aicoolies logo
DeepTeam logo
DeepTeam logo

DeepTeam

Open-source LLM red-teaming framework with 40+ attack types

open sourceupdated Aug 16, 2026

DeepTeam is an open-source red-teaming framework for systematically testing LLM applications against 40+ adversarial attack types. It covers OWASP Top 10 for LLMs including jailbreaks, prompt injection, PII leakage, and hallucination attacks. Built as the sister project of DeepEval for security testing alongside evaluation. Apache-2.0 licensed.

DeepTeam provides structured adversarial testing for LLM applications, covering the full spectrum of vulnerabilities cataloged by OWASP and NIST guidelines. The framework implements over 40 attack types organized into categories including jailbreak attempts that bypass safety filters, prompt injection attacks that redirect model behavior, data extraction techniques that expose training data or system prompts, hallucination-inducing inputs that generate plausible but incorrect outputs, and multi-turn attacks that gradually escalate through seemingly benign conversation patterns.

The framework integrates naturally with CI/CD pipelines, allowing teams to run adversarial test suites automatically before deploying LLM features to production. Each attack type generates detailed reports showing which vulnerabilities were exploited, the severity of potential impact, and specific inputs that triggered unsafe behavior. Teams can define custom attack scenarios relevant to their domain and track security improvements over time as defenses are strengthened. As the companion project to DeepEval, which handles functional evaluation, DeepTeam completes the testing picture by adding the security dimension that production LLM applications require.

The growing importance of LLM security testing is reflected in regulatory frameworks and enterprise procurement requirements that increasingly mandate adversarial testing before deployment. DeepTeam provides the tooling to meet these requirements with repeatable, automated test suites rather than ad-hoc manual testing. Its Apache-2.0 license and Python-native implementation make it accessible to any team building LLM-powered applications, from startups to enterprises with stringent compliance requirements.

Pricing

Free and open source (Apache-2.0)

Platforms

Python library — pip install

Categories

Tags

Use Cases

garak logo

garak

NVIDIA's LLM vulnerability scanner and red-teaming tool

garak is NVIDIA's open-source LLM vulnerability scanner for red-teaming AI models and applications. Probes for prompt injection, data leakage, hallucination, toxicity, encoding-based attacks, and dozens of other vulnerability categories. Runs automated attack sequences against any LLM endpoint and generates detailed vulnerability reports. Features a modular probe/detector architecture that is extensible with custom attack patterns. Named after the Star Trek character known for deception.

Open Source
Guardrails AI logo

Guardrails AI

Validate and structure LLM outputs with composable Guards

Guardrails AI is an open-source Python and JavaScript framework for validating and structuring LLM outputs using composable Guards built from a Hub of pre-built validators. It handles structured data extraction with Pydantic models, content safety checks including toxicity, PII detection, competitor mentions, and bias filtering, plus automatic re-prompting when validation fails. The Guardrails Hub offers dozens of validators from regex matching to hallucination detection via LLM judges.

free
NVIDIA logo

NeMo Guardrails

Programmable safety rails for LLM applications

NeMo Guardrails is NVIDIA's open-source toolkit for adding programmable safety rails to LLM applications. It supports five guardrail types — input, dialog, retrieval, execution, and output rails — covering content safety, jailbreak detection, topic control, PII masking, hallucination detection, and fact-checking. The toolkit uses Colang, a domain-specific language for defining conversational constraints, and integrates with OpenAI, Azure, Anthropic, HuggingFace, and LangChain/LangGraph.

free
DeepEval logo

DeepEval

Apache-2.0 Python framework for repeatable LLM, RAG, agent, MCP, and safety evaluation workflows.

DeepEval is an Apache-2.0 Python framework for evaluating LLM apps, RAG systems, agents, MCP workflows, and safety behavior with repeatable test cases. It works locally and in CI/CD, then connects to Confident AI for hosted reports, observability, red teaming, and governance when teams need shared evidence instead of ad-hoc prompt reviews and manual QA.

Open Source
MCP-Scan logo

MCP-Scan

Security scanner for MCP servers against tool poisoning attacks

MCP-Scan is a security tool that scans MCP servers for vulnerabilities including tool poisoning, prompt injection, cross-origin escalation, and rug pull attacks. Acquired by Snyk in 2026, it is the first dedicated security scanner for the MCP ecosystem. It analyzes tool descriptions, permissions, and behavior patterns to detect malicious or compromised MCP servers before they can exploit AI agents.

Open Source

Related Tools

computed discovery: shared active categories · kept separate from editor-verified Alternatives

MCPJam logo

MCPJam Inspector

Test and debug MCP servers before they ship

Open-source platform for inspecting, debugging and regression-testing MCP servers, MCP Apps and ChatGPT apps, with OAuth and protocol conformance for local and CI workflows.

freemiumOpen SourceTelemetry
ToolHive mascot logo

ToolHive

Run and govern MCP servers across desktop, CLI and Kubernetes

Open-source MCP runtime and governance platform that runs servers in isolated containers, curates registries, enforces access policies, and operates gateways across desktop, CLI, and Kubernetes.

Open Source
Anamorpher parent Trail of Bits mark

Anamorpher

Craft image-scaling prompt-injection payloads to red-team multimodal AI systems

Open-source red-team toolkit from Trail of Bits that generates image-scaling attack payloads — images that look benign at full resolution but reveal a hidden prompt injection after a multimodal system downsamples them.

freeOpen Source
cai

CAI (Cybersecurity AI)

AI agent framework for offensive security and penetration testing

Alias Robotics' agent framework for building AI-driven offensive-security workflows — reconnaissance, exploitation, privilege escalation, and lateral movement — with multi-agent handoffs and human-in-the-loop control. Source-available, but the core is licensed for non-commercial research use only.

freemiumTelemetry
MCP for Unity logo

MCP for Unity

Open-source MCP bridge between AI assistants and the Unity Editor

MCP for Unity is CoplayDev’s MIT-licensed bridge between MCP-compatible AI assistants and the Unity Editor. It exposes tools for assets, scenes, GameObjects, scripts, tests, profiling, and build-oriented workflows. The community project supports Unity 2021.3 LTS through 6.x and is explicitly not affiliated with Unity Technologies.

Open Source
XcodeBuildMCP logo

XcodeBuildMCP

Sentry-maintained MCP server and CLI for Xcode builds, simulators, and tests

XcodeBuildMCP is a Sentry-maintained, MIT-licensed MCP server and CLI for agent-assisted iOS and macOS development. It lets MCP-compatible coding agents run Xcode build and test workflows, manage simulators, inspect failures, and work through Homebrew, npm, or on-demand client configuration, with documented Sentry telemetry controls for teams that need an opt-out.

Open SourceTelemetry

Used in Stacks

FAQ

What is DeepTeam?

DeepTeam is an open-source red-teaming framework for systematically testing LLM applications against 40+ adversarial attack types. It covers OWASP Top 10 for LLMs including jailbreaks, prompt injection, PII leakage, and hallucination attacks. Built as the sister project of DeepEval for security testing alongside evaluation. Apache-2.0 licensed.

Is DeepTeam free?

Yes — DeepTeam is open source and free to use. Free and open source (Apache-2.0)

Is DeepTeam open source?

Yes — DeepTeam is open source.

What are the best DeepTeam alternatives?

The top editor-verified DeepTeam alternatives are garak, Guardrails AI, NeMo Guardrails, and more.