# Wanted Claude to read my OneNote notebooks. Grabbed an MCP server, hit a silent 401 on every call.

> Source: <https://dev.to/singhamandeep007/wanted-claude-to-read-my-onenote-notebooks-grabbed-an-mcp-server-hit-a-silent-401-on-every-301n>
> Published: 2026-07-25 17:45:15+00:00

I Rewrote a OneNote MCP Server in TypeScript — Here's What I Learned About Microsoft Graph Auth
Scope pitfalls and silent token renewal
Amandeep Singh
Amandeep Singh
Amandeep Singh
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Jul 19
I Rewrote a OneNote MCP Server in TypeScript — Here's What I Learned About Microsoft Graph Auth
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mcp
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typescript
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tutorial
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ai
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6 min read