A recent probe of 78 Model Context Protocol (MCP) servers revealed that only 51.3% (40 out of 78) are fully functional for anonymous users, allowing them to complete a tool call without authentication. Another 19.2% of servers fail at the authentication stage, requiring tokens, API keys, or account sign-ups that are not clearly indicated until an attempt is made to use them. The study also found issues with schema honesty, where servers claim no required properties but then demand arguments, and registry hygiene problems, with some listings being broken or pointing to incorrect endpoints. AI
IMPACT Highlights potential friction points for developers integrating with emerging AI communication protocols.
RANK_REASON Analysis of a specific protocol's server functionality and reliability. [lever_c_demoted from research: ic=1 ai=0.7]
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