python-utcp and rs-utcp
These are ecosystem siblings providing language-specific implementations of the same open standard protocol, allowing developers to choose between Python or Rust depending on their project's technology stack.
About python-utcp
universal-tool-calling-protocol/python-utcp
Official python implementation of UTCP. UTCP is an open standard that lets AI agents call any API directly, without extra middleware.
Based on the README, here's a technical summary: Implements a plugin-based architecture supporting HTTP, CLI, WebSocket, MCP, and file-based protocols through separate packages, with a core library providing Pydantic-based data models and a `UtcpClient` interface. Emphasizes scalability through modular design and extensible tool repositories and search strategies (e.g., `TagAndDescriptionWordMatchStrategy`). Handles variable substitution across call templates with namespace scoping to prevent collisions between multiple protocol integrations.
About rs-utcp
universal-tool-calling-protocol/rs-utcp
Official Rust implementation of the UTCP
Provides async-first tool discovery and orchestration across 12 communication protocols (HTTP, MCP, WebSocket, gRPC, CLI, etc.) using Tokio for concurrent operations. Configuration-driven registration enables automatic tool loading from JSON manifests and OpenAPI specs, with semantic tag-based search across all providers. Integrates streaming support, multi-auth (API keys, OAuth2, Basic Auth), and a Codemode orchestrator for LLM-driven workflows.
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