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Agentor is an open-source Python framework for building and deploying long-running AI agents — with tool use, MCP support, A2A protocol, and durable execution built in.
View source on GitHub · Start with Quickstart
Agentor 0.1.0 is a prerelease. It runs on Agentor’s own agent engine, with durable runs, structured output, and any OpenAI-compatible provider built in. Install it with pip install --pre agentor; plain pip install agentor stays on the stable 0.0.x line. See Installation.

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Quick example

Build an agent, connect tools, and serve it over the A2A protocol in a few lines:
agent.serve() automatically enables the A2A protocol, making your agent discoverable and interoperable with other agents.
GetWeatherTool() reads a free WeatherAPI.com key from WEATHER_API_KEY, and raises if it is not set. Pass one directly with GetWeatherTool(api_key="...").

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Start in 5 minutes

Quickstart

Install Agentor and run your first working agent in minutes.

Installation

Set up Python, install Agentor, and configure provider credentials.

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Explore by topic

Start Here

Install Agentor, run your first agent, and understand the core entry points.

Build Agents

Learn practical agent construction, deployment, tracing, skills, and A2A basics.

Durable Runs

Save every step of a run so another process can finish it after a crash.

Model Providers

Point Agentor at OpenRouter, Groq, Together, vLLM, Ollama, or your own server.

Tool Use & MCP

Implement tool calling and MCP servers, then integrate them into agent workflows.

Concepts

Understand architecture, lifecycle, security boundaries, and communication patterns.

Guides

Follow end-to-end workflows for building, streaming, deploying, and observing agents.

API Reference

Dive into class-level and tool-level API details for implementation precision.

First-time builder

Start with quickstart, then move to building agents and custom tools.

Production deployer

Focus on deployment, observability, tracing, and long-running reliability patterns.

Platform integrator

Build MCP servers and A2A-connected agents for broader multi-system integration.
Last modified on July 30, 2026