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uAgents

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A fast and lightweight framework for creating decentralized agents with ease. ![GitHub Repo stars](https://img.shields.io/github/stars/fetchai/uAgents?style=social)

FreeFree tier
Type
Open Source
Company
Fetch.ai
Visit Website GitHub (40 stars)

About uAgents

uAgents is an open-source Python library developed by Fetch.ai for creating autonomous AI agents that can interact in a decentralized environment. Agents are created using simple decorators and can be scheduled to perform tasks or react to events. Each agent automatically registers on the Fetch.ai blockchain via the Almanac smart contract, ensuring secure identity and asset management through cryptographic keys. The framework supports agent-to-agent communication, storage, broadcasting, and is compatible with the ASI:One ecosystem. It is designed for rapid development of decentralized agent-based applications.

Key Features

Easy creation and management of autonomous agents using Python decorators
Automatic registration on the Fetch.ai blockchain via the Almanac smart contract
Cryptographically secured messages and wallets for identity and asset protection
Support for scheduled tasks and event-driven actions
Agent-to-agent communication and broadcasting
Compatible with ASI:One ecosystem
Built-in storage and address management
Open source with community examples and integrations

Pros & Cons

Pros
  • Simple decorator-based agent creation reduces boilerplate
  • Secure by design with cryptographic identities and wallets
  • Seamless integration with Fetch.ai blockchain for decentralized registration
  • Lightweight and fast for Python developers
  • Open source with active community and examples
  • Well-documented tutorials and guides
Cons
  • Currently limited to Python (3.10–3.13)
  • Requires understanding of blockchain concepts for advanced features
  • Dependency on Fetch.ai ecosystem and its blockchain
  • Relatively new framework with evolving ecosystem

Best For

Building autonomous AI agents for decentralized applicationsScheduling recurring tasks in multi-agent systemsEvent-driven automation on blockchain networksDeveloping secure agent identities and messagingPrototyping and experimenting with agent-based architectures

FAQ

How do I install uAgents?
Install with pip: pip install uagents. Requires Python 3.10 to 3.13.
What is the purpose of the Almanac?
The Almanac is a smart contract on the Fetch.ai blockchain where agents automatically register upon startup, enabling discoverability and connectivity in the decentralized network.
Can I set a fixed address for an agent?
Yes, by providing a seed parameter when creating the agent, e.g., Agent(name='alice', seed='your_seed_phrase'), you can set a fixed address.
Is uAgents free to use?
Yes, uAgents is open source and free to use. It is released under an open-source license.