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ToolBrain: A framework for agentic tool use training with reinforcement learning. It is listed under Development & Code on AI Registry as a free tool.
The tools below are approved listings in the same category, ordered by how closely their tags match ToolBrain. This is an automatic list. We have not written a researched verdict for ToolBrain yet, so treat it as a shortlist and check each vendor's pricing page before switching.
Built from each tool's listing. Vendors can update their own listing after claiming it.
The Continuous-Improvement Stack for Agents.
Judgeval is the listing for Judgment Labs, a company that sells what it calls a continuous improvement stack for AI agents. The platform is aimed at teams running agents in production who need to find out when those agents misbehave, understand why, and confirm that a fix works before shipping it. Judgment connects to...
Halo is an open-source framework built by White Circle for training large language and multimodal models
Halo is an open source distributed training framework from White Circle, the AI safety company that uses it to train all of its own models. It adds parallel training directly to Hugging Face models, so there is no porting step and no new checkpoint format. Adding a new model family is described as roughly 100 lines of ...
Fine-tune LLMs from one YAML.
Soup is an open source command line tool for post training large language models on local hardware, built by MePlay, Inc. and released under the Apache 2.0 license. It installs with pip and covers the workflow from data checks to shipping a model in a single CLI. Its central technique is layer streaming. Instead of lo...
ACRYL - Agent Context Relay Yielding Lifecycles.
ACRYL, short for Agent Context Relay Yielding Lifecycles, is an agentic development environment and runtime that treats coding agents as interchangeable workers. The workspace, which ACRYL calls a room, owns the project context, decisions and history, so a developer can switch between Claude Code, Codex, OpenCode, Gemi...
Event-sourced graph runtime for durable and stateful agents
activegraph is an open source Python runtime for long running AI agents from Yohei Nakajima, the creator of BabyAGI. It records everything an agent does in an append only event log and projects that log into a live graph of beliefs, tasks, evidence, decisions and dependencies. The graph becomes the agent's world: what ...
AG2 (formerly AutoGen): The Open-Source AgentOS.Join us at: https://discord.gg/sNGSwQME3x
AG2 is an open source Python framework for building, orchestrating and scaling multi agent AI systems, created by the original creators of AutoGen. It lets developers define teams of specialized agents that converse, use tools and hand work to each other, and it sits at the core of a wider commercial platform the compa...