novuhq/novu
Novu is an open-source communication infrastructure that unifies notification delivery across various channels for both products and AI agents, offering a single API for multi-channel messaging, wo...
Awesome AI Agents › Communication Protocols
universal-tool-calling-protocol/python-utcp
python-utcp is the Python implementation of the Universal Tool Calling Protocol (UTCP), an open standard for describing tools so that an LLM agent can call them over whatever transport the tool already speaks. Instead of putting a dedicated server in front of every API, UTCP describes a tool with a manual that points at the existing endpoint, so the agent talks to the service directly and the protocol layer stays thin. Version 1.0.0 restructured the project into a modular core plus a plugin architecture: the core utcp package holds the Pydantic models, the tool repository, the search strategies and the client, while separate plugin packages add communication protocols such as HTTP, Server-Sent Events, command line execution, text file manifests and others. Because every extension point is a plugin, a developer can add a new transport, a different tool storage backend or a custom tool search strategy without touching the core library. The repository is a monorepo that contains the core package, the protocol plugins, examples and documentation, and each package is published separately to PyPI. Tool definitions are ordinary Pydantic models, which keeps validation and serialization predictable and makes the manuals easy to generate from existing API descriptions. The project positions itself as an alternative to the Model Context Protocol, emphasising scalability across large tool catalogues, interoperability with infrastructure that is already deployed, and a low integration cost for teams that do not want to wrap every service. It is aimed at developers building agent runtimes, tool gateways and integrations who need a transport-agnostic way to expose many tools to a model, and at maintainers of existing APIs who want their services callable by agents without writing and hosting an extra adapter service.
https://github.com/universal-tool-calling-protocol/python-utcp
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