What platforms does depthfirst support?

depthfirst is available on Web App.

What are the limitations of depthfirst?

No public pricing; evaluation begins with a demo request. No self-serve trial is described on the homepage. Performance claims and benchmarks come from the vendor itself.

depthfirst

Name: depthfirst
Author: depthfirst

AI-native security agents that find, validate and fix software flaws

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Screenshot of depthfirst, AI-native security agents that find, validate and fix software flaws

What is depthfirst?

depthfirst is an AI-native security platform that scans code, dependencies, infrastructure and live environments, validates findings, and proposes fixes through PR reviews, a dependency firewall and agentic pentesting.

depthfirst is a security platform built around AI agents that behave like a research team inside an organization's software stack. It covers source code, third-party dependencies, infrastructure and the running environment, with the aim of detecting vulnerabilities, validating which ones are real, and helping teams remediate them. The vendor positions it as continuous cyber defense rather than a point scanner. The product line is split into several modules visible on the site: code review, a Dependency Firewall, supply chain protection, secrets detection and Agentic Pentesting, a newer offering that tests applications the way an attacker would. Pull request reviews are a notable workflow. According to customer quotes, the reviewer proposes concrete code changes that developers can apply directly in the pull request, and it tracks context across scans so its findings improve over time. Customers such as Supabase, Persona, AngelList and Moveworks describe using one or more of these modules. Under the hood, depthfirst trains its own security-specific models and agents, including a model called dfs-large1, and publishes a benchmark named dfbench that measures detection recall, validation precision and differential analysis across many frontier models. The site charts these results against cost per task, which signals that cost efficiency is a stated design goal. A research section also covers vulnerability work such as GitLab remote code execution findings and container security. The audience is security and engineering leaders at software companies that want to reduce manual security-engineering effort without adding headcount. Adoption starts with a demo request rather than self-serve signup, so it suits organizations with a formal security function. Among alternatives, it competes with traditional static analysis and dependency scanners by emphasizing validation and fix proposals over raw alert volume, though buyers will need to evaluate the vendor's claims against their own codebases.

How do you use depthfirst?

1Request a demo
Use the Get started button to book a demo with the depthfirst team and describe your stack and security goals.
2Connect your code
Review the code module to see how repositories and pull requests are scanned and how fix suggestions are delivered.
3Protect your dependencies
Look at the Dependency Firewall and supply chain pages to understand how new packages and malware in dependencies are screened.
4Check for exposed secrets
Explore the secrets module to learn how leaked credentials are detected across your repositories.
5Try agentic pentesting
Read about Agentic Pentesting to see how attacker-style testing is run against live applications.
6Review benchmark research
Study the dfbench write-up to judge detection, validation and cost claims against your own requirements.

Pros and cons

Pros

Covers code, dependencies, infrastructure and live environments in one platformAI
PR reviewer proposes concrete code changes developers can apply directlyAI
Publishes dfbench, an open methodology for measuring detection and validationAI
Trains its own security-specific models with a focus on cost per taskAI
Named customers include Supabase, Persona, AngelList and MoveworksAI

Cons

No public pricing; evaluation begins with a demo requestAI
No self-serve trial is described on the homepageAI
Performance claims and benchmarks come from the vendor itselfAI
Benchmark validation precision figures shown are modest across all models listedAI
Aimed at organizations with security teams, less suited to solo developersAI

How much does depthfirst cost?

Features

Code and pull request review with applicable fix suggestions, Dependency Firewall, supply chain and secrets protection, Agentic Pentesting, and security-specific models (dfs-large1) evaluated on the dfbench benchmark for detection, validation and differential analysis.

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Frequently asked questions about depthfirst

How do you use depthfirst?
The walkthrough on this page covers 6 steps: 1. Request a demo 2. Connect your code 3. Protect your dependencies 4. Check for exposed secrets 5. Try agentic pentesting 6. Review benchmark research.
What platforms does depthfirst support?
depthfirst is available on Web App.
What are the limitations of depthfirst?
No public pricing; evaluation begins with a demo request. No self-serve trial is described on the homepage. Performance claims and benchmarks come from the vendor itself.