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mcp/skillhub

marginal MCP Server

sh.marginal/mcpv0.3.0

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

remoteofficial registry

context tax

queued

security

queued

cold start

queued

freshness

Slowing4mo ago

Install marginal MCP server

Install in Claude Code

claude mcp add --transport http marginal https://marginal.sh/mcp

Remote endpoints

  • streamable-httphttps://marginal.sh/mcp

Freshness

Slowing — last maintenance signal 4mo ago. The newest of the signals below sets the band.

  1. Last commit (default branch)

    no data · GitHub

  2. Latest release

    no data · GitHub

  3. Package published

    no data · npm/PyPI

  4. Registry entry updated

    2026-06-24 · 4mo ago · official registry · v0.3.0

FAQ

›How do I install the marginal MCP server in Claude Code?

Run: claude mcp add --transport http marginal https://marginal.sh/mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does marginal require an API key?

No required environment variables are declared in its published metadata.

›Can I use marginal as a remote (hosted) MCP server?

Yes. It is a hosted MCP server; connect to its URL with any client that supports remote MCP.

›Is marginal in the official MCP registry?

Yes, as sh.marginal/mcp.

Alternatives to marginal

Other email MCP servers.

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