MCP for Copilot DirectoryMethodologySubmit / Get featuredNewsletter

← Directory

404.directory

Risk preflight for AI Agent tool actions and Polymarket settlement and execution checks.

likely compatible

Answered an MCP initialize with no credentials; use auth 'None'.

Rule R2a · what this means · Not tested in Copilot Studio.

Registry nameio.github.MM-sheng/404-directory
Endpoint used for verdicthttps://404.directory/mcp
Transportsstreamable-http
Auth (Copilot Studio setting)None (open)
Last endpoint check2026-10-20T18:13:56Z · initialize OK
GitHubMM-sheng/404-directory
Websitehttps://404.directory
Version0.10.3
Registry updated2026-08-30
Track changes like this weekly. New Copilot-ready MCP servers, breakages and auth changes, in one short email.
Is this wrong or out of date? Email us. Data built 2026-10-20.