Universal Tool Calling Protocol icon
Universal Tool Calling Protocol icon

Universal Tool Calling Protocol

The Universal Tool Calling Protocol (UTCP) is an open standard, as an alternative to the MCP, that describes how to call existing tools rather than proxying those calls through a new server. After discovery, the agent speaks directly to the tool’s native endpoint (HTTP, gRPC...

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Platforms

  • Self-Hosted
  • Python
  • Go (Programming Language)
  • Typescript
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Features

  1.  Golang
  2.  Model Context Protocol (MCP) Support
  3.  Python-based

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Universal Tool Calling Protocol information

Universal Tool Calling Protocol was added to AlternativeTo by Paul on and this page was last updated . Universal Tool Calling Protocol is sometimes referred to as UTCP. 
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What is Universal Tool Calling Protocol?

The Universal Tool Calling Protocol (UTCP) is an open standard, as an alternative to the MCP, that describes how to call existing tools rather than proxying those calls through a new server. After discovery, the agent speaks directly to the tool’s native endpoint (HTTP, gRPC, WebSocket, CLI, …), eliminating the “wrapper tax,” reducing latency, and letting you keep your existing auth, billing and security in place.