User reports silent 401 errors integrating Claude with OneNote

By PulseAugur Editorial · [1 sources] · 2026-07-25 17:45

A user encountered issues integrating Claude with Microsoft OneNote using an MCP server. They experienced silent 401 errors, indicating an authentication problem, and documented their debugging process. AI

IMPACT Highlights potential integration challenges for users attempting to connect LLMs with personal productivity tools.

RANK_REASON User-reported issue with a specific tool integration.

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AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

User reports silent 401 errors integrating Claude with OneNote

COVERAGE [1]

dev.to — MCP tag TIER_1 English(EN) · Amandeep Singh · 2026-07-25 17:45

Wanted Claude to read my OneNote notebooks. Grabbed an MCP server, hit a silent 401 on every call. Wrote up the full debugging. Check it out

<div class="ltag__link--embedded"> <div class="crayons-story "> <a class="crayons-story__hidden-navigation-link" href="https://dev.to/singhamandeep007/i-rewrote-a-onenote-mcp-server-in-typescript-heres-what-i-learned-about-microsoft-graph-auth-5933">I Rewrote a OneNote MCP Server…

COVERAGE [1]

Wanted Claude to read my OneNote notebooks. Grabbed an MCP server, hit a silent 401 on every call. Wrote up the full debugging. Check it out

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