onetool-mcp: OneTool MCP is a single MCP server that bundles 100+ tools — Brave search, Google, Context7, AWS, Playwright, Chrome DevTools, Excel, database operations, and more. Instead of registering each tool individually and burning context on their definitions, agents write short Python code to call any tool on demand. Anthropic engineering research backs this approach: code execution reduces token usage by over 98%, cutting costs dramatically when agents need many external tools.; obsidian-vault-mcp: This Obsidian plugin runs an MCP server (Model Context Protocol) that allows external LLM tools to interact with your vault. It supports HTTP transport for remote LLMs and stdio transport via a bridge script for Claude Desktop, providing a rich set of tools to read, search, create, update, and delete notes.
Cutting MCP token overhead when an agent needs 10+ external tools
Enable LLM assistants to read and search your Obsidian vault