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Make any LLM find vulnerabilties & bugs Review

RedMirror is a command-line binary that functions as an MCP server for coding agents, enabling them to find security bugs in code and verify vulnerabilities against a benchmark.

shipped Aug 10, 2026paid
Monthly visits1/mo
Make any LLM find vulnerabilties & bugs — product screenshot

Why it matters

1RedMirror applies formal verification to detect bugs and surface vulnerabilities with reproducible counterexamples.
2The tool supports a wide array of programming languages, including JavaScript, Python, Go, Rust, Java, C#, Ruby, PHP, and C/C++.
3A July 2026 update introduced content-based caching, reducing re-scan costs by approximately 40% and review-pass tokens by 90%.
4Pricing is metered, pay-per-scan, with new accounts receiving $1 of free credit and costs varying by model tier (e.g., OpenRouter at $0.25/M in).

About Make any LLM find vulnerabilties & bugs

Business Model
Subscription SaaS
Usage Pricing
$10/seat/mo per seat
Free Credits
First month free for newsletter subscribers
Platforms
macOS, Linux, Windows
Target Audience
Developers and security teams

Pricing Plans

Standard
$10/mo
  • Unlimited local scans
  • Any language the model reads
  • Cancel anytime

Cost Examples

  • $10/mo for unlimited local scans

Screenshots

overview

What is Make any LLM find vulnerabilties & bugs?

Make any LLM find vulnerabilties & bugs is a code analysis tool developed by RedMirror that enables developers and security teams to find security bugs and vulnerabilities in code. It functions as a command-line binary and MCP server for coding agents, enhancing bug detection by proving vulnerabilities verified against a benchmark, ensuring more comprehensive coverage than using a model alone. RedMirror applies formal verification to detect bugs, triage reports, and surface vulnerabilities with reproducible counterexamples, exploring all reachable states to provide exact steps to break the code.

features

Key Features of Make any LLM find vulnerabilties & bugs

RedMirror provides a robust set of features designed for comprehensive code security analysis, leveraging formal verification and LLM assistance. Its capabilities extend beyond basic scanning to include detailed vulnerability proving and integration with existing development workflows.

  • Functions as an MCP server for coding agents, enabling local or cloud-based operation.
  • Detects security bugs by exploring all reachable code states and providing exact steps to reproduce issues.
  • Proves findings with grounded evidence, verifying vulnerabilities against a benchmark for enhanced coverage.
  • Supports a wide array of programming languages including JavaScript, TypeScript, Python, Go, Rust, Java, C#, Ruby, PHP, and C/C++.
  • Integrates into CI/CD pipelines for continuous scanning on every code push.
  • Allows users to check custom invariants or properties in code, stated in plain language, to find violations.
  • Offers content-based caching for re-scans, reducing costs for unchanged code sections.
  • Provides an on-premise solution for air-gapped environments, ensuring data locality.

use cases

Who Should Use Make any LLM find vulnerabilties & bugs?

RedMirror is designed for individuals and teams requiring rigorous code security analysis and vulnerability detection, particularly those who need verifiable evidence for identified issues. Its capabilities cater to various roles within the software development lifecycle.

  • Developers: For deep code audits, identifying bugs in state-heavy parts of code (e.g., payment flows, authentication), and integrating continuous scanning into CI/CD.
  • Security Researchers: To surface candidate vulnerabilities backed by reproducible counterexamples and triage bug reports from other scanners or researchers.
  • Autonomous Agents: As an MCP server, it enables coding agents to find security bugs and verify findings programmatically.
  • Organizations with High-Stakes Code: Utilizing the managed audit service for expert-led code modeling and vulnerability reasoning with written reports.
  • Teams Requiring Air-Gapped Environments: Leveraging the on-premise solution to ensure code and models remain within their network.

how to use

How to Use Make any LLM find vulnerabilties & bugs

RedMirror is primarily operated via a command-line binary, allowing for local execution and integration into automated workflows. The process involves installation, estimation, and initiating scans.

  • 1Install the RedMirror command-line binary on macOS, Linux, or Windows.
  • 2Activate the tool to function as an MCP server for your coding agent.
  • 3Run redmirror estimate locally to obtain a cost estimate before initiating a scan.
  • 4Initiate a scan of your codebase, either locally or in the cloud, to detect bugs and vulnerabilities.
  • 5Review the generated reports, which include reproducible counterexamples for identified issues.
  • 6Integrate the scanning process into CI/CD pipelines for continuous security analysis on every push.

pricing

Make any LLM find vulnerabilties & bugs Pricing & Plans

RedMirror employs a transparent, metered pricing structure, avoiding traditional subscription models based on user tiers or developer headcount. Users pay for the scans they run, with options for self-serve and enterprise-grade solutions.

  • Standard: $10/month for unlimited local scans.
  • Lite Scan (Self-Serve): Metered to the token, with prices published (e.g., a few cents for small packages, a dollar or two for mid-size applications). New accounts receive $1 of free credit.
  • Model Tiers: Costs vary by model: OpenRouter (default for dashboard scans) at $0.25/M in and $0.45/M out; Tresor at $0.50/M in and $1/M out; Frontier models (e.g., Anthropic) at $2.50/M in and $10/M out.
  • On-prem (Enterprise): Custom pricing for air-gapped environments where the engine runs against a customer-hosted model.
  • Managed Audit: Custom pricing for expert-led code modeling and vulnerability reasoning with a written report.

Pros

  • +Leverages formal verification to provide reproducible counterexamples for detected bugs, enhancing reliability.
  • +Supports a broad range of programming languages (JavaScript, Python, Go, Rust, Java, C#, Ruby, PHP, C/C++).
  • +Content-based caching significantly reduces costs and time for re-scans of unchanged code (up to 90% token reduction).
  • +Offers flexible, metered, pay-per-scan pricing without per-seat subscriptions, beneficial for large teams.
  • +Provides an on-premise solution for air-gapped environments, ensuring data privacy and compliance.
  • +Enables custom invariant checks, allowing users to define specific rules in plain English.

Cons

  • Public user reviews and aggregated reception metrics are not widely available, making broad assessment of user satisfaction difficult.
  • The effectiveness of LLM-assisted review is dependent on the chosen model tier, with frontier models being significantly more expensive.
  • Requires integration into existing CI/CD pipelines, which may involve initial setup effort.
  • While offering a free credit, continuous usage for larger projects will incur costs based on token consumption.
  • The complexity of formal verification may have a learning curve for users unfamiliar with the methodology.

Similar Tools

Make any LLM find vulnerabilties & bugs vs Competitors

RedMirror differentiates itself in the code analysis market through its emphasis on formal verification, reproducible counterexamples, and a flexible, usage-based pricing model. It stands apart from tools that rely solely on static analysis rules or broad LLM 'guesses'.

1

Allows users to write custom rules in a simple YAML syntax to find security bugs, anti-patterns, and enforce code standards across many languages.

Unlike RedMirror's LLM-driven approach, Semgrep relies on defined rules, offering precise and auditable findings but requiring rule creation or selection. It provides a structured way to find vulnerabilities, contrasting with an LLM's general understanding and benchmark verification.

2
Bandit

A security linter specifically designed to find common security issues in Python code by scanning abstract syntax trees.

Bandit is highly specialized for Python, offering deep, language-specific security analysis. This contrasts with RedMirror's language-agnostic LLM approach, meaning Bandit provides focused expertise but lacks broader language coverage and LLM-driven verification.

3
Gitleaks

Scans Git repositories and local files to detect hardcoded secrets like API keys, tokens, and passwords.

Gitleaks focuses exclusively on secrets detection, a critical but narrow subset of 'vulnerabilities & bugs.' RedMirror aims for broader vulnerability detection using an LLM, while Gitleaks offers highly effective, specialized secret scanning without LLM involvement or benchmark verification.

4
OWASP Dependency-Check

Identifies known vulnerabilities in project dependencies by analyzing project files and comparing them against known vulnerability databases.

Dependency-Check focuses on vulnerabilities in third-party libraries, a common attack vector not directly addressed by RedMirror's custom code analysis. The trade-off is that it won't analyze your custom code for logic flaws, and it doesn't use an LLM or benchmark verification for its findings.

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