T3MP3ST
Keyless multi-agent red-teaming framework that turns your coding agent into a zero-day hunter
For teams already running a compatible coding agent and seeking a free, verifiable red-teaming harness, T3MP3ST is a legitimate pick. Its 90.1% pass@1 on XBOW's suite and the `npm run verify-claims` command make it trustworthy—but only for technically adept teams that can self-host and maintain discipline around scope. It's a credible alternative to commercial platforms, not a drop-in for non-technical users.
Verified 2d ago · liveness 73/100 · cite: rightaichoice.com/tools/t3mp3st
- AI safety researchers needing verifiable, reproducible LLM vulnerability testing
- Red-team engineers running continuous authorized security assessments on web apps and CTFs
- Security teams wanting a free, self-hosted alternative to commercial platforms like XBOW
- Developers with an existing coding agent (Claude Code, Codex) who want an attack harness without new API keys
- Non-technical users who need a GUI-only, managed security scanner
- Organizations lacking in-house expertise to self-host Docker-based frameworks and interpret exploit results
- Teams requiring production-grade support or a cloud SLA—this is AGPL open source with no vendor backing
We scan live Reddit threads, YouTube comments, X posts, G2 reviews and other communities — and hand you an honest verdict in under a minute.
- Honest verdict, not marketing
- Real pros & cons from real users
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Skip T3MP3ST if you need a managed, GUI-only security scanner with vendor support, or if you lack the technical expertise to self-host Docker-based frameworks and interpret exploit results.
You must already have a compatible coding agent (Claude Code, Codex, etc.) or run a local model (Ollama, LM Studio, vLLM) that can supply the LLM reasoning for the kill chain.
T3MP3ST is free forever under AGPL-3.0, making it ideal for security researchers and teams with existing coding-agent infrastructure. Compared to commercial platforms like XBOW (which charges per-agent/per-test), you save massively, but you must supply your own LLM API keys or local model.
In short
T3MP3ST — Keyless multi-agent red-teaming framework that turns your coding agent into a zero-day hunter. Best for AI safety researchers needing verifiable, reproducible LLM vulnerability testing, Red-team engineers running continuous authorized security assessments on web apps and CTFs, Security teams wanting a free, self-hosted alternative to commercial platforms like XBOW. Free to use.
What people actually say about T3MP3ST — is it worth it?
We ran a structured research pass across product reviews, community discussions, and post-purchase forum threads to surface the patterns vendors won't publish themselves. Below: the recurring strengths, the hidden costs people mention most, and the cohort that consistently regrets adopting this tool.
31 mentions across 4 sources (Hacker News, Bluesky, GitHub, Lemmy) · researched Jul 16, 2026.
- +Autonomous multi-agent orchestration reduces manual oversight for red-teaming.
- +Modular plugin architecture enables custom attack strategies and extensibility.
- +Free, open-source, and self-hosted with no cloud dependency.
- +Keyless operation using existing AI coding agents like Claude Code.
- +Supports prompt injection, jailbreak, and adversarial testing.
- −CLI detection fails for common tools like Claude Code and Codex CLI.
- −Setting up local LLM (e.g., Ollama) is poorly documented.
- −No guidance for adding authentication headers in web scans.
- −Essential documentation for basic configuration is missing or confusing.
- −Hype exceeds proven reliability—few in-depth user reviews exist.
- • Potential cloud API costs if using remote LLMs (e.g., OpenAI API key)
- • Time investment in troubleshooting setup and configuration
Viability Score
How well maintained and how widely used is T3MP3ST? Built from what the vendor actually publishes (docs, changelog, tutorials, integrations, pricing), whether the site is live, and how much real users discuss it. How we calculate this
Last calculated: September 2026
How we score →Key Features
- Multi-agent orchestration for autonomous kill chains (recon → exploit → report)
- Browser-based War Room interface
- CLI interface for command-line control
- Keyless integration with Claude Code, Codex, Hermes, OpenCode, Oh My Pi
- Offline model support via Ollama, LM Studio, vLLM
- Black-box web app recon-to-exploit (XBEN suite)
- Hint-free CTF solve capability (Cybench)
- Coordinated-disclosure pipeline for embedded/robotics/OT (OSV + live-PoC + refuter)
- White-box source code analysis with multi-language ingest via web-tree-sitter
- Smart contract vulnerability reproduction (Damn Vulnerable DeFi)
- Cloud IaC misconfig detection scaffolding (cloud:bench)
- Mobile static analyzer for manifest misconfigs and secret/cleartext detection
- Binary reverse engineering static sink detector (unsafe-copy, format-string, cmd-injection, int-overflow)
- Reproducible benchmark claims with npm run verify-claims (27/27 green)
- Modular plugin architecture for custom attack strategies
About T3MP3ST
T3MP3ST is a multi-agent offensive-security framework that repurposes the AI coding agent you already use—Claude Code, Codex, Hermes, OpenCode, or Oh My Pi—into an autonomous vulnerability hunter. It's built for AI safety researchers, red-team engineers, and security auditors who want continuous, reproducible bug-hunting without provisioning new infrastructure. You point it at an authorized target, and a coordinated swarm of agents runs the kill chain—recon, exploit, report—from a browser-based War Room or the CLI. No new API keys, no cloud tenant, no second bill; your agent is the brain, T3MP3ST is the arsenal bolted around it. If you prefer, you can run models fully offline via Ollama, LM Studio, or vLLM. The framework is modular and extensible. A plugin architecture covers diverse attack domains: black-box web app recon-to-exploit (XBEN suite), hint-free CTF solves (Cybench), a coordinated-disclosure pipeline for robotics/OT/embedded OSS (OSV + live-PoC + refuter), white-box source code analysis with multi-language ingest via web-tree-sitter, smart contract vulnerability reproduction (Damn Vulnerable DeFi), cloud IaC misconfig detection scaffolding, mobile static analysis, and binary reverse engineering for sink detection like unsafe-copy and format-string. A core emphasis is reproducibility. Every benchmark number in the README can be recomputed from committed data with a single command (`npm run verify-claims`)—27/27 checks pass. On XBOW's 104-challenge suite, T3MP3ST scores 90.1% pass@1, beating XBOW's self-reported 85%. It also reports hint-free CTF solves and a cold hunt on real post-cutoff CVEs. This means you can verify performance claims before trusting them—a rarity for red-teaming tools. Licensed under AGPL-3.0 and self-hosted via Docker, T3MP3ST gives full control but demands strong technical expertise to deploy. The status table transparently marks what's stable, experimental, or roadmap. It's a serious free alternative to commercial platforms
Behind the Verdict
T3MP3ST is not a tool you casually try; it's a system you commit to. The keyless design is genuinely clever—it borrows the brain you already pay for, eliminating the API-key hassle that plagues other security tools. If you're a red-team engineer who lives in Claude Code or Codex, the zero-config integration is a huge time-saver. You get an autonomous kill chain (recon, exploit, report) from day one, with a War Room interface that makes multi-agent progress visible. Where it bites is operational overhead. Self-hosting Docker, managing agent dependencies, and interpreting exploit results all demand real expertise. This isn't a GUI-point-and-click scanner; it's a harness for professionals. If your team lacks in-house security engineering depth, you'll struggle to extract value. The AGPL-3.0 license and lack of vendor support also mean you're on your own if something breaks—there's no SLA to lean on. Compared to commercial red-teaming platforms like XBOW, T3MP3ST wins on cost and verifiability. XBOW charges premium prices and its 85% pass@1 is self-reported; T3MP3ST is free and lets you re-derive every claim with one command. That reproducibility is a massive trust advantage for researchers. However, commercial tools offer managed infrastructure and support, which T3MP3ST doesn't. Use cases that fit best: sustained, autonomous security assessments on web apps and CTFs, especially in research or bug-bounty contexts where reproducibility matters. It's also a strong fit for security teams that need to scale testing without new budgets. Skip it if you need a one-off quick test or a managed scanner. The learning curve is steep, and the legal tightrope—authorized use only—means you need clear rules of engagement. In practice, we'd reach for T3MP3ST when we want to verify a
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Real-world workflow fit
Concrete scenarios for the personas T3MP3ST actually fits — and what changes day-one when you adopt it.
You want to evaluate a new LLM endpoint for jailbreak robustness before launch.
Outcome: Configure T3MP3ST to point at the endpoint, launch a multi-agent attack from the War Room, and get a detailed exploit report in hours instead of days.
You need continuous, automated vuln discovery on a web app you own.
Outcome: Set up a nightly cron job that runs T3MP3ST's black-box recon-to-exploit pipeline, and receive a fresh vulnerability report each morning.
You want to practice CTF challenges without hints to sharpen offensive skills.
Outcome: Upload a CTF binary or challenge, let T3MP3ST attempt hint-free solves using your coding agent, and review its exploitation path.
Use Cases
- Automate nightly adversarial testing of your production LLM endpoint to catch regression vulnerabilities.
- Simulate multi-turn jailbreak attempts using coordinated agent swarms on a target model.
- Evaluate the robustness of custom prompt filters before deploying a customer-facing chatbot.
- Generate a comprehensive vulnerability report for your LLM-based application as part of a security audit.
- Benchmark different LLM providers on their resistance to common attack vectors in a reproducible manner.
- Hunt for zero-day vulnerabilities in your own software before attackers do, using authorized red-team campaigns.
- Practice CTF challenges hint-free to train your team's offensive security skills.
Models Under the Hood
as of 2026-08-30
Limitations
- T3MP3ST is a self-hosted, CLI-focused tool requiring comfort with the command line and TypeScript/Node.js environment.
- It is open-source and under active development, so documentation and stability may be incomplete.
- The framework orchestrates multiple agents to perform autonomous red-teaming, which demands advanced security knowledge.
- Community support is the primary avenue for help.
as of 2026-08-26
Verification history
We have re-verified T3MP3ST 7 times since . Each pass re-reads the vendor's own pages and re-checks every listed field against that evidence; passes where nothing had changed are marked as such.
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-verified summary, description, our verdict, our analysis, pricing model, pricing tiers, features, integrations, who it suits, who should skip it
- — re-checked, vendor evidence unchanged
Showing the 6 most recent of 7 verification passes.
Free to cite with attribution — this page re-verifies continuously.
12-month cost
Project the real annual outlay, including the implied monthly cost when only an annual tier is published.
Vendor list price only. Add-on usage, seat overages, and contract minimums are surfaced under Hidden costs & gotchas.
Where the pricing makes sense
The company stage and team size where T3MP3ST's pricing actually pencils out — and where peers do it cheaper.
T3MP3ST is free forever under AGPL-3.0, making it ideal for security researchers and teams with existing coding-agent infrastructure. Compared to commercial platforms like XBOW (which charges per-agent/per-test), you save massively, but you must supply your own LLM API keys or local model.
Setup time & first value
How long it actually takes to get something useful out of T3MP3ST — broken out by persona, not the marketing-page minute.
For a developer with Node.js and Docker ready, you can have T3MP3ST cloning, installing, and running a first kill chain on a test target in under an hour. If you need to set up a local model (Ollama) or integrate a new coding agent, expect a half-day. Non-technical users should budget a day or more.
Switching to or from T3MP3ST
How to bring data in from common predecessors and how to get it back out — written for the switcher, not the buyer.
- ↗To XBOW: If you outgrow self-hosting and need a managed platform with support, XBOW offers a commercial red-teaming service, but you'll pay per test and give up keyless operation.
Integrations
Resources & Guides
- Resourcegithub.com
T3MP3ST · T3MP3ST
Helpful link from github.com
- Resourcegithub.com
README · T3MP3ST
Helpful link from github.com
- Documentationgithub.com
Docs · T3MP3ST
Full product docs from github.com
- Resourcegithub.com
FEATURES · T3MP3ST
Helpful link from github.com
- Resourcegithub.com
CONTRIBUTING · T3MP3ST
Helpful link from github.com
Tutorials & Learning
Official links
Tools that pair well with T3MP3ST
Common stack mates teams adopt alongside T3MP3ST, with the specific reason each pairing earns its keep.
Featured Head-to-Head Comparisons
T3mp3st vs Push Security
Push Security and T3MP3ST are not direct competitors—they solve different problems. If you're a security team looking to detect browser-based attacks (AiTM, session hijacking) and control employee AI tool usage with real-time policy enforcement, Push Security is the right choice. If you're an AI safety researcher or red-teamer who needs an autonomous, open-source framework to stress-test LLMs via prompt injection and jailbreak attacks, go with T3MP3ST. Pick based on your threat model: external browser attacks + AI governance vs. internal LLM robustness evaluation.
T3mp3st vs Sublime Security
If you need to stress-test LLMs proactively and have the in-house expertise to manage open-source tooling, T3MP3ST is the free, autonomous choice. For organizations fighting targeted email threats with a need for transparent, agent-driven detection and low false positives, Sublime Security's enterprise platform delivers — but at an unknown cost and with a steeper onboarding for small teams.
T3mp3st vs Audioeye
These tools serve completely different needs: T3MP3ST is a free, open-source red-teaming framework for LLM security researchers and red-team engineers who want autonomous adversarial testing with no cloud dependency. AudioEye is a paid, managed accessibility platform for enterprises that need rapid ADA/WCAG compliance, legal documentation, and expert support. Your choice depends on whether you're securing AI or ensuring web accessibility.
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