Companies in the category 'AI Agents'
These are companies that provide open source tools for building and deploying autonomous AI agents capable of performing tasks, making decisions, and interacting with environments.
Framework for building stateful AI agents
Letta provides an open source framework for building stateful agents with advanced reasoning capabilities and transparent long-term memory. The Letta framework is white box and model-agnostic.
Memory layer for LLM and AI applications
Mem0 provides a memory layer for LLM applications, enabling them to remember and learn from user interactions over time.
Open-source personal AI agent platform
OpenClaw is an open-source personal AI agent platform that runs on the user's own machine and integrates with messaging apps such as WhatsApp, Telegram, Discord, and Slack. Originally created by Peter Steinberger in November 2025 under the name Clawd, the project became one of the fastest-growing open-source repositories in history, accumulating over 290,000 GitHub stars. In February 2026, Steinberger joined OpenAI and transitioned OpenClaw into an independent foundation to ensure it remains open and community-driven.
AI skill layer for building and automating agents.
Composio provides a developer-focused integration platform that simplifies how AI agents and large language models (LLMs) connect with external applications and services. Its platform includes built-in authentication management, tool discovery across over 90 APIs, and enhanced reliability features to accelerate the deployment of scalable, secure AI applications in diverse environments.
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Cline provides an autonomous AI coding agent that operates directly within IDEs, capable of creating and editing files, executing commands, and using browsers with complete transparency and user control. The platform offers model-agnostic access to frontier AI capabilities without vendor lock-in, featuring client-side architecture that ensures code never leaves the user's environment.
Research & product lab for AI agents
Cosmic Stack is a research and product lab building agents, infrastructure, and tools for the next decade of software. The company operates across four surfaces: Labs (experimental prototypes), Open Source (hardened tools including Mercury Agent), Incubator (founder-led companies built on the agent stack), and Cloud (managed runtime for agents). Its flagship product, Mercury Agent, is a terminal-native AI coding agent with 40+ tools, persistent memory, and a provider-agnostic runtime, licensed under MIT.
Foundation models for scientific research
Synthetic Sciences is an AI research lab building foundation models for scientific discovery. The company develops OpenScience, an open-source AI workbench that enables researchers to delegate the full research loop — literature review, hypothesis generation, experiment design, code execution, and paper drafting — to autonomous AI co-scientists, and Atlas, a closed-source infrastructure platform for research collaboration and model training.
Open-source AI workspace OS for long-running jobs
holaOS is an open-source AI workspace operating system built by Holaboss that enables users to create persistent, long-running AI workspaces. Users describe an ongoing job, and holaOS builds a workspace with goals, context, rules, and scheduled execution. The desktop application runs locally on macOS and Windows, supports multiple LLMs via bring-your-own-key, and integrates with tools such as Gmail, GitHub, Notion, Twitter, and Reddit. Each workspace accumulates outputs and corrections across runs, allowing work to compound over time rather than restart with each session.
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Embedded AI agent for SaaS products
Vendo is an open-source embedded AI agent that software companies integrate into their products to let end customers automate work, build custom views, and connect external tools. The agent operates through the host application's own API, renders within the host's brand and component library, and enforces the host's permission policies on every action. Vendo is self-hosted and free under the Apache-2.0 license, with a managed cloud offering in development.
Open source AI coding agent toolkit
Earendil Works is a public benefit corporation building open source developer tools and AI-powered software. Its flagship product is Pi, an open source AI agent toolkit and coding agent CLI that provides a unified LLM API, an agent loop, and a terminal user interface for developers. The company also develops Lefos, an AI email assistant that enables users to interact with their inbox as a command line, and Absurd, a durable execution framework for Python.
Open-source memory infra for AI agents
Plastic Labs is an engineering-driven AI research company building at the intersection of machine learning and cognitive science. Its core product, Honcho, is an open-source memory infrastructure library with a managed service for building stateful AI agents that understand users, agents, groups, and ideas over time. Honcho uses custom reasoning models to generate persistent conclusions about entities from interaction data, providing developers with a continual learning system for context engineering. The company also develops Neuromancer, a suite of reasoning models for memory and personal identity.
Open-source AI code agent development platform.
Continue is an open source platform that enables developers to create, share, and use custom AI code assistants.
Privacy-first AI development platform.
One (formerly Gitpod) provides a privacy-first AI development platform that empowers teams with AI software engineers to clear backlogs and multiply engineering output within their VPC.
Open-source personal AI identity system
Mindverse is a Singapore-based AI company that develops Second Me, an open-source system that allows users to create locally-hosted AI agents trained on their personal data to represent their identity and interact with other AI agents in a decentralized network.
Platform for building custom AI agents
Dust is a platform that allows organizations to build custom AI agents connected to their company knowledge and tools, powered by various AI models.

