RedFang
RedFang: Low-cost cloud scans turn AI-agent risks into reproducible fixes and retests. Ranked #18 of 27 in AI Red Teaming Tools by our editors (7.5/10); pricing: Free plan; best for low-cost cloud scans with actionable reports.
At a glance
- Editor score7.5 / 10
- PricingFree plan
- Best forLow-cost cloud scans with actionable reports
- Free planYes
- Paid from$19/mo
- Automation levelContinuous
- Facts checked21 Sep 2026
Where it wins
- Free preview includes a letter grade and top three issue categories
- Reports include exact payloads, Curl commands, fix code, and retesting
- Scans repositories and URLs against OWASP LLM Top 10-based attacks
Where it doesn't
- Web-only access may not suit teams seeking other deployment options
- The free preview does not include every finding or remediation detail
- Focused on AI systems rather than broad general-purpose security testing
Our verdict on RedFang
RedFang is a web-based AI red-team scanner for indie builders and teams assessing AI agents, GitHub repositories, application URLs, customer-service chatbots, coding agents, and LLM workflows. It automates adversarial checks for prompt injection, jailbreaks, sensitive data leakage, tool misuse, agent overreach, denial-of-wallet, system-prompt extraction, exposed keys, broken authentication, and other AI-related bugs. Results are organized into letter grades from A+ to F, prioritized findings, reproduction instructions, remediation guidance, and retesting.
The pricing structure is designed to let buyers preview risk before paying. The Free preview includes a grade, the top three issue categories, and a free scan preview without a credit card. The Full report option is listed at $19 one-time and adds every finding, exact prompts that worked, Curl reproduction commands, fix code, retesting, and a shareable badge. A Full report subscription is listed at $19 per user per month and includes every issue, reproduction instructions, fix guidance, and retesting. The subscription is the more natural fit for teams that need repeated review rather than a single report.
RedFang’s strongest area is the path from discovery to verification. It supports automated repository and application URL scans, OWASP LLM Top 10-based attack testing, exact attack payloads and responses, remediation guidance, fix code, and retesting. Automatic recurring rescans support ongoing monitoring, while PDF and HTML report exports and an embeddable security badge help communicate results. It suits builders who want focused cloud scanning with actionable evidence and a relatively low entry price. Teams needing non-web deployment, broader non-AI security coverage, or a more expansive enterprise security platform should consider an alternative.
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RedFang pricing
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RedFang fact sheet
| Free plan | Yes |
|---|---|
| Paid from | $19/mo |
| Attack categories | direct prompt injection; tool misuse; sensitive data leakage; output-as-attack-vector; agent overreach; denial-of-wallet; system-prompt extraction |
| Target systems | AI agents; GitHub repositories; application URLs; customer-service chatbots; coding agents; LLM workflows |
| Automation level | Continuous |
| Custom tests | Not verified |
| Deployment | Cloud |
| Continuous monitoring | Yes |
| Report exports | PDF; HTML |
| Deployment | Cloud, Browser extension |
| Platforms | Web |
| Support | |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | Free plan (source) |
| Website | redfang.org |
| Facts checked | 21 Sep 2026 |
Alternatives to RedFang
- AgentSealContinuous AI red teaming across agents, MCP, RAG, prompts, and multimodal systems.9.4
- PromptfooA broad open-source choice for evaluating and red-teaming AI applications.9.3
- ProofLayerA focused platform for automated, continuous testing of agents, MCP servers, and LLM applications.9.1
See all RedFang alternatives →
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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