Mantis
Google's toolkit for AI coding agents to autonomously find, reproduce and patch software vulnerabilities in isolated environments.
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About Mantis
Mantis is listed in our security & governance category and is aimed at builders. Google's toolkit for AI coding agents to autonomously find, reproduce and patch software vulnerabilities in isolated environments. Pricing, as the maker states it: Open source. Maturity: Active. We last checked the official link on 2026-10-18.
Mantis at a glance
- Category: Security & governance
- Built for: Developers and teams building with AI agents
- Pricing: Open source (as the maker states it)
- Licence: Apache License 2.0 (OSI-approved open source)
- GitHub: google/mantis · 2,504 stars (as of Oct 21, 2026)
- Last commit: Oct 20, 2026
- Official site: github.com/google/mantis
- Listed on AgentScout: Oct 18, 2026
Mantis FAQ
What is Mantis?
Google's toolkit for AI coding agents to autonomously find, reproduce and patch software vulnerabilities in isolated environments.
How much does Mantis cost?
Mantis's pricing, as the maker states it: Open source. Open-source tools are free to use, though you may still pay for model API usage or a hosted plan. Check the official site for current plans.
Is Mantis open source?
Yes. Mantis's GitHub repository is published under the Apache License 2.0, according to the licence file in the repo.
Where can I find Mantis's source code?
On GitHub at google/mantis, which had 2,504 stars as of Oct 21, 2026.
What are alternatives to Mantis?
Similar tools include Agent Governance Toolkit, open-kritt, Octane, ThinkWatch Lite, Almanax and Agent Vault.
Facts from our link-checked listing, the GitHub repository and the official site. See something wrong? Suggest an edit.
Mantis ratings and reviews
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Mantis alternatives
Other security & governance tools in our directory. See all security & governance tools →
Agent Governance Toolkit
Microsoft toolkit for policy enforcement, identity and sandboxing for AI agents.
open-kritt
A self-hosted AI security research tool that orchestrates agents to hunt for vulnerabilities in a codebase and then validate and rank what they find; managed scans are also offered.
Octane
Agentic security analysis that finds exploitable vulnerabilities in mission-critical code, including DeFi smart contracts.
ThinkWatch Lite
A local gateway that sits between your coding agents and model providers, letting you switch upstreams, redact secrets before they leave your machine, block dangerous tool calls and see the cost of each request.
Almanax
AI security engineer that finds vulnerabilities in applications and smart contracts and reviews pull requests; acquired by depthfirst (June 2026).
Agent Vault
Infisical's open-source credential broker that proxies API calls for AI agents so they never hold secrets themselves.
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