MCP Works with Local Models Too — Server Ecosystem Maturing Fast

The Model Context Protocol (MCP) is often associated with Anthropic's Claude, but it's not tied to any specific model. As highlighted in a recent r/LocalLLaMA discussion, MCP works with any model that supports function calls — including local models running via Ollama.

Key Details from the Post

The author ran several tests using Ollama with Open Web UI, which now includes basic MCP client functionality. The MCP protocol uses simple JSON RPC, making it model-neutral by design. As long as your model correctly uses tools, it can connect to MCP servers.

Key findings:

• Smaller models struggle with multi-step tool usage.
• Larger models (13B+) with function-calling capabilities perform significantly better.

MCP Server Ecosystem

The MCP server ecosystem has grown notably. Available servers include:

• File systems
• Browsers
• Databases
• GitHub
• Slack
• Domain-specific servers

The advantage: write one server and any MCP client can use it. This is especially useful when switching between local and cloud-based models.

Who It's For

Developers running local LLMs who want to integrate external tools via MCP without relying on cloud-only solutions.