UTCP

UTCP (Universal Tool Calling Protocol) is an open standard for AI agents to call tools directly, positioned as a lightweight alternative to MCP. It eliminates the "wrapper tax" for lower latency by using a simple JSON manifest to connect to native APIs.

UTCP (Universal Tool Calling Protocol) is an open standard that enables AI agents to directly call tools, offering a lightweight alternative to MCP. By using a simple JSON manifest, UTCP connects to native APIs, eliminating unnecessary layers and reducing latency.

Designed for scalability, interoperability, and ease of use, UTCP supports multiple provider types, including HTTP, WebSockets, gRPC, and CLI tools. It avoids prescriptive middleware, allowing agents to interact directly with tools via their native endpoints. This approach removes the need for wrappers, leverages existing infrastructure, and improves efficiency.

With its straightforward implementation and focus on direct communication, UTCP provides a flexible solution for integrating tool-based services without added overhead.