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MCP Servers Show Mixed Adoption of New OAuth Specs

By PulseAugur Editorial · [1 sources] ·

A recent analysis of 61 official MCP servers revealed that while basic authorization functionalities are widely implemented, newer specifications are lagging. The study found that all servers correctly handle initial authentication requests and advertise PKCE with S256, but a significant portion fail to fully adopt newer standards like Client ID Metadata Documents and issuer parameter support. Some servers also lack scope hints, forcing clients to guess necessary permissions. The analysis noted recent improvements from companies like Apollo, Cal.com, and Neon in adopting these newer specifications. AI

RANK_REASON Analysis of technical specifications and compliance with standards. [lever_c_demoted from research: ic=1 ai=0.1]

Read on dev.to — MCP tag →

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

MCP Servers Show Mixed Adoption of New OAuth Specs

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Analysis of technical specifications and compliance with standards. [lever_c_demoted from research: ic=1 ai=0.1]
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COVERAGE [1]

  1. dev.to — MCP tag TIER_1 English(EN) · X1Y1 ·

    We Checked 61 Official MCP Servers Against the Auth Spec

    <p>Most SaaS companies now ship an official remote MCP server, and most of them sit behind OAuth. We wanted to know how closely those servers follow the current MCP authorization spec (the 2026-07-28 revision), so we checked the official servers of 67 vendors from the outside. 61…

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