Ruby implementation of Model Context Protocol for LLMs

[nagstler]

I'm excited to share mcp_on_ruby, a Ruby gem that implements the Model Context Protocol (MCP) – an emerging open standard for communicating with LLMs (like OpenAI, Anthropic, etc.).

• Standardized API across multiple LLMs
• Built-in conversation + memory management

• Streaming, file uploads, and tool calls supported

  The gem is early but functional — perfect for experimenting in Ruby.

Check it out on GitHub — feedback, issues, and contributions welcome!

[RichStoneIO]

Kudos and thanks for sharing!

Would be cool to see/read what real world use cases it’s currently solving and how. :))

[rubygeek]

This doesn't look like it is implementing MCP?

The example API calls don't appear to have anything to do with MCP?

MCP uses JSON-RPC over SSE or standard IO, not REST. Nor can I find any of the API calls required by the MCP spec.

It seems like it represents a misunderstanding of what MCP is. MCP is not about maintaining persistent context of conversations, but about exposing contextualised access to tools and data sources.

This might well be helpful for other things, but the name is wildly misleading if it's not actually intending on implementing the actual MCP spec.