OnsetLab
Agent Frameworks
Tool-calling AI agents that run locally with REWOO + ReAct planning, MCP server support, and any Ollama model.
At a Glance
Pricing
Open Source
Free and open source under Apache 2.0 license
Engagement
Available On
Windows
macOS
Linux
Web
API
About OnsetLab
OnsetLab is a Python framework for building tool-calling AI agents that run entirely on your local machine. It combines REWOO planning with ReAct fallback reasoning to create self-correcting agents that can connect to MCP servers and use any Ollama-compatible model without requiring API keys or cloud dependencies.
- REWOO + ReAct Planning - Plans all execution steps upfront and runs them in sequence, automatically falling back to step-by-step reasoning when tool calls fail
- MCP Server Integration - Connect to GitHub, Slack, Notion, filesystem, web search, and any other MCP server with a single line of configuration
- Self-Correcting Execution - Automatically retries with corrected parameters when tool calls fail, with ReAct fallback kicking in when plans need adjustment
- Any Ollama Model Support - Works with Qwen, Mistral, Hermes, Gemma, and any other Ollama-compatible model to fit your hardware requirements
- Local-First Architecture - Run everything on your own machine with your own models and tools, maintaining full control over your data and infrastructure
- Simple Installation - Get started with
pip install onsetlaband configure your agent with just a few lines of Python code - Flexible Deployment - Export your agents as Docker containers, YAML configurations, or standalone scripts for production deployment
- Built-in Tools - Includes Calculator, DateTime, and other utility tools out of the box, with easy extensibility for custom tools
- Interactive Playground - Test and experiment with agents directly in the browser-based playground before deploying to production
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Pricing
OPEN SOURCE
Open Source
Free and open source under Apache 2.0 license
- REWOO + ReAct planning
- MCP server integration
- Self-correcting execution
- Any Ollama model support
- Built-in tools
Capabilities
Key Features
- REWOO + ReAct hybrid planning
- MCP server integration
- Self-correcting tool execution
- Ollama model support
- Local-first execution
- Built-in Calculator and DateTime tools
- Docker export
- YAML configuration export
- Interactive playground
- GitHub MCP server
- Slack MCP server
- Notion MCP server
- Filesystem MCP server
- Web search MCP server
Integrations
Ollama
GitHub
Slack
Notion
Docker
Qwen
Mistral
Hermes
Gemma
API Available
View Docs