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// 4 full challenges · MCP Servers
MCP Servers
easyBuild an MCP server for a notes app
Build a beginner-friendly MCP server that exposes note-taking tools for listing, reading, creating, updating, deleting, and searching notes.
Avg 2–3 h·Any language
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hardBuild an MCP server for a REST API with auth and rate limiting
Build an MCP server that wraps PulseDB (a fictional time-series REST API) — handling authentication headers, rate limit responses, pagination, and retry logic.