Open Source Alternatives to Attestra Assessor

Policy guardrails for coding agents to block dangerous tool calls before they are fired.

Open source

Seeing AI from the right angle. Free, open tools, resources, reports, and data that show what AI systems actually do.

Open source

Sponsors of OpenWALDO, a community-driven initiative for open-source AI training data, and provider of enterprise Linux, HPC, and AI infrastructure software.

Open source

The Defcon badges feature a unique open-source chip that doubles as a security key.

Open source

BenchFlow is a frontier environment lab that builds environments for AI agents to learn and be evaluated on real computer work.

Open source

Open-source framework enabling autonomous AI agents to make frictionless web3 payments via web2 infrastructure.

Open source · Self-hostable

An applied cybersecurity research lab using AI agents to autonomously discover, exploit, and verify software vulnerabilities.

Open source · Self-hostable

Open-source AI platform for securely deploying intelligent agents, private enterprise search, and complex document workflows on an organization's own data.

Open source · Self-hostable

Open-source infrastructure for permissioned agent-to-agent communication: a deny-by-default kernel for file access and tool calls, with pluggable agent runtimes.

Open source

Cloud-based browser API for AI agents, simplifying web automation with anti-bot protection and session persistence.

Open source · Self-hostable

Agentic endpoint security for AI coding, providing visibility, governance, and real-time protection.

Open source

Track experiments, validate models, and collaborate with confidence using Skore, the methodology layer for AI coding tools.

Open source

An open-source technology provider offering an open control plane for AI agents.

Open source · Self-hostable

Open-source autonomous AI agent platform that automates complex digital workflows.

Open source · Self-hostable

An open-source platform enabling enterprises to securely connect sensitive data to AI agents.

Open source · Self-hostable

An open-source platform for building and running AI coding agents that automate software development tasks.

Open source · Self-hostable

Building general-purpose AI for a future of material abundance.

Open source · Self-hostable

Cua provides an open-source framework and cloud desktops for AI agents to control operating systems and desktop applications across Linux, Windows, macOS, and Android.

Open source

Open-source infrastructure for coding agents, enabling AI to plan, generate, and deploy software autonomously.

Open source · Self-hostable

Open-source AI agent framework for automating tasks across messaging platforms and software systems.

Open source · Self-hostable

Company

Open source

An open-source framework for building, operating, and benchmarking Multimodal Language Model (MLM) agents across diverse environments.

Open source · Self-hostable

An open-source red-teaming toolkit for testing the security of LLM-powered agents, auditing prompt injection, memory poisoning, and tool abuse.

Open source

Experimental open-source framework for building self-building autonomous agents with a novel function framework.

Open source · Self-hostable

An open-source platform for developing AI-powered autonomous software engineering agents.

Open source · Self-hostable

An open-source platform for research in embodied AI, focusing on realistic simulation environments.

Open source

An open-source, AI-powered brain for organizations, offering a workbench for builders, tailored solutions, and an agent legion.

Open source

An open-source, autonomous AI agent for complex tasks using terminal, browser, and editor interactions.

Open source · Self-hostable

Adala is an Autonomous DAta (Labeling) Agent framework for data processing and labeling tasks.

Open source · Self-hostable

A non-profit research organization focused on advancing open and ethical AI development.

Open source

Analyze your AI session logs to identify and fix excessive token usage, helping users stay within their token limits.

Open source