← Directory

marginal

Email A/B tests for AI agents: subject lines, managed sends, open/click tracking, and results.

likely compatible

Declares API key header (Authorization); use Copilot Studio 'API key' → Header.

Rule R2b · what this means · Not tested in Copilot Studio.

Registry namesh.marginal/mcp
Endpoint used for verdicthttps://marginal.sh/mcp
Transportsstreamable-http
Auth (Copilot Studio setting)API key (header)
Last endpoint check2026-10-20T18:18:23Z · HTTP 401
Websitehttps://marginal.sh
Version0.3.0
Registry updated2026-06-24
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Is this wrong or out of date?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.