Allow tool calling with any API by adding support to UTCP

[edujuan]

TL;DR; UTCP adds support to do tool calling to any API without any additional servers or setup. Should this be added to Roo Code?

UTCP is a tool calling protocol that enables AI agents to call external APIs without any middleman servers, and which supports a variety of transport layers, from CLI tools to REST to sockets to GraphQL.

• Specification: https://www.utcp.io/docs
• Github: https://github.com/universal-tool-calling-protocol

The tool calls are done identically to how MCP calls tools, give the tool name and the arguments, and receive a response.
Examples: https://github.com/universal-tool-calling-protocol/utcp-examples

Idea

Support Roo Code agents to also call tools using UTCP in addition to MCP.

Benefits

•⁠ ⁠Any API is supported, even if it doesn't have an MCP server
•⁠ ⁠APIs with built-in security maintain those security guarantees, and there's no need to trust third-party servers with any data
•⁠ ⁠Could support a large number of tools using tool searching functionalities
•⁠ ⁠Very low effort to add support for a new tool (copy paste the location on your PC or URL to a json manual)

Challenges

•⁠ ⁠There is a bit of implementation needed to add the UTCP Client
•⁠ ⁠UTCP is still quite young

Mitigations

•⁠ ⁠The UTCP maintainer team has volunteered to make the PR themselves if the Roo Code community wants it
•⁠ ⁠Feedback to UTCP is to be taken into consideration and implemented very fast, as it's not that large

MVP

Make UTCP return its calls alongside MCP in a way that it looks like it's just another MCP server. This requires very little implementation. It doesn't leverage the tool search capabilities of UTCP, but it still is good as a starting point.